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Keysight 34980A, Руководство пользователя

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3

Features and Functions

136

Keysight 34980A Mainframe User’s Guide

Thermocouple Measurements

The instrument supports the following thermocouple types: B, E, J, K, N, R, S, and 

T using ITS-90 software conversions. 

The default is a J-Type thermocouple. 

– Thermocouple measurements require a reference junction temperature. For 

the reference junction temperature, you can use an internal measurement on 

the module (34921A only), an external thermistor or RTD measurement, or a 

known fixed junction temperature.
– The 

internal

 reference junction source is valid only on channels 1 through 

40 on the 34921A with the 34921T terminal block installed.

– If  you  select  an 

external

 reference, the instrument makes thermocouple 

measurements relative to a previously-stored RTD or thermistor 

measurement stored in a reference register. To store a reference 

temperature, first configure a multiplexer channel for an RTD or thermistor 

measurement. Then assign the measurement from that channel as the 

external reference. When you initiate a measurement on an external 

reference channel, the acquired temperature is stored in volatile memory in 

the reference register. Subsequent thermocouple measurements use the 

stored temperature as their reference. The temperature remains in memory 

until you measure a subsequent external reference value in the reference 

register or remove the mainframe power. 

– If  you  select  a 

fixed

 reference temperature, specify a value between 

 

-20 °C and +80 °C (always specify the temperature in °C regardless of the 

temperature units currently selected).

– The accuracy of the measurement is highly dependent upon the thermocouple 

connections and the type of reference junction used. Use a fixed temperature 

reference for the highest accuracy measurements (you must maintain the 

known junction temperature). The internal isothermal block reference (34921A 

only) requires no external wiring but provides lower accuracy measurements 

than a fixed reference.

– The 

thermocouple check

 feature allows you to verify that your thermocouples 

are properly connected for measurements. If you enable this feature, the 

instrument measures the channel resistance after each thermocouple 

measurement to ensure a proper connection. If an open connection is detected 

(greater than 5 k

Ω

 on the 10 k

Ω

 range), the instrument reports an overload 

condition for that channel (or displays “OPEN T/C” on the front panel). 

Содержание 34980A

Страница 1: ...Keysight 34980A Multifunction Switch Measure Unit Mainframe User s Guide Sie haben Fragen oder wünschen eine Beratung Angebotsanfrage unter 07121 51 50 50 oder über info datatec de Distributed by ...

Страница 2: ...de the government rights in excess of these rights customarily provided to the public to use modify reproduce release perform display or disclose commercial computer software or commercial computer software documentation No additional government requirements beyond those set forth in the EULA shall apply except to the extent that those terms rights or licenses are explicitly required from all prov...

Страница 3: ...ecautions which must be taken to maintain safe operation of the instrument Alternating current AC Caution risk of electric shock Frame or chassis ground terminal Caution risk of danger refer to this manual for specific Warning or Caution information Standby supply Unit is not completely disconnected from ac mains when switch is off ...

Страница 4: ... may be impaired if it is used in a manner not specified in the operation instructions Before Applying Power Verify that all safety precautions are taken Make all connections to the unit before applying power Ground the Instrument This product is provided with protective earth terminals To minimize shock hazard the instrument must be connected to the ac power mains through a grounded power cable w...

Страница 5: ...ar damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel Environmental Conditions Keysight 34980A is designed for indoor use in an installation category II and low condensation environment Table below shows the general environmental conditions for this instrument Refer to the product data sheet at https li...

Страница 6: ... a Monitoring and Control Instrument product The affixed product label is as shown below Do not dispose in domestic household waste To return this unwanted instrument contact your nearest Keysight Service Center or visit http about keysight com en companyinfo environment takeback shtml for more information Sales and Technical Support To contact Keysight for sales and technical support refer to the...

Страница 7: ...ons 5 Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC 6 Product category 6 Sales and Technical Support 6 1 Introduction to the 34980A Data Acquisition Overview 14 Measurement Software 15 Data Acquisition Circuitry 17 Plug In Modules 19 System Cabling 19 Transducers and Sensors 20 Alarm Limits 21 Signal Routing and Switching 22 Switching Topologies 22 RF and Microwave Switching ...

Страница 8: ...Front Panel Keyboard 58 Front Panel Menu Reference 58 Menu Example 1 Setting the Time and Date 61 Menu Example 2 Opening and Closing Channel Relays 63 Using the Measure Keys 65 Menu Example 3 Configuring the DMM for a Measurement 66 Menu Example 4 Configuring a Channel for a Measurement 69 Connecting the 34980A to Your Computer 73 Connecting Over LAN 74 Connecting Over GPIB 80 Connecting Over USB ...

Страница 9: ...figuration 105 GPIB Interface 106 LAN Interface 106 Clearing 34980A Memory 115 Volatile Memory 115 Non Volatile Memory 115 Analog Bus and Internal DMM Considerations 117 Environmental Operating Conditions 117 Electrical Operating Conditions 118 General Measurement Configuration 119 Overview of Measurement Modes 119 Analog Buses 122 Measurement Functions 123 Measurement Range 124 Measurement Resolu...

Страница 10: ...n 143 AC Low Frequency Filter 143 Frequency Measurement Configuration 145 Low Frequency Timeout 145 Mx B Scaling 146 Scanning 148 Rules for Scanning 148 Adding Channels to the Scan List 150 Scan Trigger Source 152 Trigger Count 157 Sweep Count 158 Sample Count 159 Channel Delay 161 Automatic Channel Delays 163 Reading Format 164 Non Sequential Scanning 166 Viewing Readings Stored in Memory 167 Mon...

Страница 11: ... 196 Front Panel Number Format 197 Real Time System Clock 197 Internal DMM Disable 198 Relay Cycle Count 198 SCPI Language Version 199 Calibration Overview 200 Calibration Security 200 Calibration Count 201 Calibration Message 202 Factory Reset State 203 Instrument Preset State 206 4 Introduction to the Plug In Modules for the 34980A User s Guides for the 34980A s Plug In Modules 210 Available Mod...

Страница 12: ...12 Keysight 34980A Mainframe User s Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Страница 13: ...e 34980A Data Acquisition Overview 14 Signal Routing and Switching 22 Measurement Input 25 Control Output 33 This chapter provides an overview of a computer based data acquisition and measurement control system using the Keysight 34980A Multifunction Switch Measure Unit and typical plug in modules ...

Страница 14: ...ction mathematical calculations and conversion to engineering units You can use the PC to easily configure and present data You can electrically isolate analog signals and measurement sensors from the noisy PC environment and earth ground You can use a single PC to monitor multiple instruments and measurement points while performing other PC based tasks The 34980A is shipped with Ethernet USB and ...

Страница 15: ...need to install both that software and a device driver before connecting the instrument over GPIB or USB No device driver is required for LAN If you install the IO Libraries Suite USB device drivers should be installed automatically Measurement Software A variety of software tools are available for remote communication with the 34980A the most commonly used tools are briefly discussed below Data L...

Страница 16: ...nal DMM Particularly the Pro version allows for customized action scripts conditional control of external instruments decision making or program initiation based on limit checks and alarm events and advanced math operations Both the standard and Pro versions are supplied on the same CD ROM The Pro version can be used for 30 days without obligation subsequently a software license is required for it...

Страница 17: ... Multiple Instruments These software tools can also be used with the 34980A Keysight IO Libraries Suite shipped on CD with the 34980A Keysight IntuiLink Keysight VEE an evaluation copy of the VEE Pro software is shipped on CD with the 34980A National Instruments LabVIEW Microsoft Visual Basic or Visual C Data Acquisition Circuitry As shown below the 34980A s main system processor controls all of t...

Страница 18: ...irectly to the optional internal DMM using the 34980A multiplexer and matrix modules or you can connect to external signals via the Analog Bus connector located on the instrument s rear panel Since four 2 wire buses are provided you can dedicate one bus for use with the internal DMM while using the other three buses for module extensions or additional signal routing between modules Main System Pro...

Страница 19: ...t DUT to the 34980A using several optional interconnection solutions see Interconnection Solutions Overview on page 215 Detachable terminal blocks are available for low frequency modules and offer an extremely flexible method for connecting external wiring You can also connect to the plug in modules directly using standard cabling with 50 pin D Sub and 78 pin D Sub connectors Optional solder cup c...

Страница 20: ...pair reduces common mode noise Shielded twisted pair provides additional noise immunity Shielded Coaxial Double Shielded Coaxial VHF Signal switching Most common cable for high frequency signal routing Available in specific impedance values 50Ω or 75Ω Provides excellent noise immunity Double shielded cable improves isolation between channels Requires special connectors Flat Ribbon Twisted Pair Rib...

Страница 21: ...the four available alarms numbered 1 through 4 For example you can configure the instrument to generate an alarm on Alarm 1 when a limit is exceeded on any of channels 1003 2025 or 3020 You can also assign alarms to channels on the digital modules 34950A and 34952A For example you can generate an alarm when a specific bit pattern or bit pattern change is detected on a digital input channel or when...

Страница 22: ...trument and stores the total count in non volatile memory on each switch module You can use this feature to track relay failures and to predict system maintenance requirements For more information on using this feature refer to Relay Cycle Count on page 198 Switching Topologies Several switching plug in modules are available with different topologies for various applications The following switchin...

Страница 23: ...u create a scanner For more information on scanning see Scanning on page 27 Matrix Switching A matrix switch connects multiple inputs to multiple outputs and therefore offers more switching flexibility than a multiplexer Use a matrix for switching low frequency less than 30 MHz signals only A matrix is arranged in rows and columns For example a simple 3x3 matrix could be used to connect three sour...

Страница 24: ...rm A switches are also called Single Pole Single Throw SPST and contain a normally open NO contact which is either open or closed RF and Microwave Switching A variety of RF and microwave switch modules are also available for the 34980A This includes RF multiplexers 34941A 34942A SPDT switching from dc to 20 GHz 34946A 34947A and a switch attenuator driver module 34945A that allows you to control s...

Страница 25: ...s The Internal DMM A transducer or sensor converts a physical quantity being measured into an electrical signal which can be measured by the internal DMM To make these measurements the internal DMM incorporates the following functions Temperature thermocouple RTD and thermistor Voltage dc and ac up to 300V Resistance 2 wire and 4 wire up to 100 MΩ Current dc and ac up to 1A Frequency and Period up...

Страница 26: ...rument automatically decides which range to use for each measurement based on the input signal For fastest scanning operation use manual ranging for each measurement some additional time is required for autoranging since the instrument has to make a range selection Analog to Digital Conversion ADC The ADC takes a prescaled dc voltage from the signal conditioning circuitry and converts it to digita...

Страница 27: ...exer or digital channels Channels which are not in the scan list are skipped during the scan By default the instrument automatically scans the list of channels in ascending order from slot 1 through slot 8 channels are reordered as needed If your application requires non ordered scanning of the channels in the present scan list you can configure a non sequential scan Measurements are taken only du...

Страница 28: ...easure key from the front panel You can start a scan by sending a software command from the remote interface MEASure or INITiate command You can start a scan when an external TTL trigger pulse is received You can start a scan when an alarm event is logged on the channel being monitored For more information on scanning see Scanning on page 148 Scan List t t Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 t1 t2 t3 t4...

Страница 29: ...e without the internal DMM In this configuration you can use the 34980A for signal routing or control applications If you install a multiplexer plug in module you can use the system for scanning with an external instrument You can connect an external instrument such as a DMM to the multiplexer s COM terminals see below or you can connect to the 34980A s analog buses Input Channels Common Terminals...

Страница 30: ...nnel delay The 34980A outputs a Channel Closed pulse In response the external instrument must notify the 34980A when it has finished its measurement and is ready to advance to the next channel in the scan list For more information see Scanning With External Instruments on page 171 1 5 6 9 5 1 9 6 ABus1 HI ABus2 HI ABus3 HI ABus4 HI ABus1 LO ABus2 LO ABus3 LO ABus4 LO Channel Closed GND Channel Adv...

Страница 31: ... User s Guides included with those modules Digital Input The digital modules have multiple non isolated 8 bit input output ports which you can use for reading digital patterns You can read the live status of the bits on the port or you can configure a scan to include a digital read Each port has a separate channel number on the module and contains 8 bits You can combine ports to read 16 or 32 bit ...

Страница 32: ... to read the count You can configure the totalizer to count on the rising edge or falling edge of the input signal The minimum rise fall time for input signals to the totalizer is 5 μS The maximum count is 4 294 967 295 232 1 The count rolls over to 0 after reaching the maximum allowed value You can configure the totalizer to read without affecting the count or reset the count to zero without losi...

Страница 33: ...output capabilities to the system digital output and voltage DAC output For more information see the individual User s Guides included with those modules The digital modules also contain digital input and event totalizer capabilities which are described in more detail on page 31 and page 32 Digital Output The digital modules have multiple non isolated 8 bit input output ports which you can use for...

Страница 34: ...nnel can be used as a programmable voltage source for analog input control of other devices A simplified diagram is shown below You can set the output voltage to any value between 16 Vdc and 16 Vdc in 500 μV steps on any or all four channels You can set the output current to any value between 20 mA and 20 mA in 630 nA steps on any or all four channels 16 Bits 16 Bits 16 Bits 16 Bits DAC 1 DAC 2 DA...

Страница 35: ...00V dc or ac rms Each switch can also switch up to 1A dc or ac rms up to 60W maximum For example the maximum current that you can switch at 120V is 0 45A as shown below For control applications the GP modules have the following advantages Higher voltage and power rating than the digital output channels The actuator switches can also be used to control power devices When used with high power device...

Страница 36: ...1 Introduction to the 34980A 36 Keysight 34980A Mainframe User s Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Страница 37: ...g the 34980A from the Front Panel Keyboard 58 Connecting the 34980A to Your Computer 73 Communicating with the 34980A 83 Operating the 34980A using the Integrated Web Browser Interface 84 34980A Documentation Map 95 This chapter provides an overview of the 34980A s controls displays and connections module assembly wiring and installation instructions and some basics of operation with examples It i...

Страница 38: ...Date and Time and configure other system related instrument parameters 3 The Store Recall key allows you to save and recall up to six instrument setups CAUTION For proper instrument function Channel monitor must be turn OFF when the state is stored and Auto recall is enabled If the Channel monitor is turned ON the front panel may freeze If the front panel is forzen all plug in modules must be remo...

Страница 39: ...c characters selecting slots or channels and navigating menus 10 The Enter key steps you through a menu or saves number entries 11 Running a program puts the display into remote and disables the front panel keys Local takes you out of remote mode and enables the front panel keys 12 Configure keys select functions and set function parameters 13 Measure keys execute and monitor measurements Dependin...

Страница 40: ...bols Located on Rear Panel Warning Risk of electric shock Caution Refer to accompanying descriptions in User s Guide Alternating Current Mainframe Chassis Ground 1 Access to Analog Buses shown with removable cover installed For pinouts see page 43 2 Module installed in slot 1 3 Slot identifier ...

Страница 41: ...cover over slot 2 6 AC power connector 7 LAN connector 10Base T 100Base Tx 8 USB 2 0 connector 9 External trigger input For pinouts see page 42 10 Internal DMM option mark If you ordered the internal DMM option the circle is marked black 11 IEEE 488 2 GPIB Connector 12 Chassis ground screw ...

Страница 42: ...2 Getting Started 42 Keysight 34980A Mainframe User s Guide Rear Panel Connector Pinouts External Trigger Alarms Connector Male D Sub ...

Страница 43: ...Getting Started 2 Keysight 34980A Mainframe User s Guide 43 Analog Bus Connector Female D Sub ...

Страница 44: ...ed they will be used at some point during that scan When lit an error has been generated and is in the error queue Rmt Indicates Remote mode is in use Running a program puts the display into remote mode and disables the front panel keys Pressing the LOCAL button takes you out of remote mode and enables the front panel keys Safety Interlock Indicates an ABus Safety Interlock When lit at least one t...

Страница 45: ...n display after you have selected the scaling function via the front panel or remote interface 4W A 4 wire measurement is specified on the displayed channel This appears on the display after you have selected the 4 wire function via the front panel or remote interface OC Lit when Offset Compensation has been specified for a given measurement This appears on the display after you have selected the ...

Страница 46: ...om the factory with one slot uncovered and the remaining seven slots covered the illustration below shows a module already inserted in Slot 1 When you are ready to install additional modules in the seven remaining slots you must first remove its slot cover Using a flat blade screwdriver pry each side of the slot cover until the cover releases from the slot WARNING When any slot covers are removed ...

Страница 47: ...cedure below to install a plug in module 1 Install the module into a mainframe slot until it fully seats with the backplane connector 2 Using a Pozidriv 1 screwdriver tighten the two screws to secure the module in the mainframe Installation is now complete CAUTION Do not block air intake or exhaust vents at the sides of the instrument NOTE Applies to the multiplexer and matrix modules only The Saf...

Страница 48: ...wave modules can be used with a compatible terminal blocks optional accessories 349xxT which provide screw terminals or solder cup connections for your external wiring If you plan to use an optional terminal block follow the procedure below to install the module 1 Using a Pozidriv 1 screwdriver remove the panhead grounding screw located between the module connectors ...

Страница 49: ...ews from the support sleeve 3 Fit the terminal block support sleeve against the module so the openings on the sleeve line up with the connectors and the center screw hole as shown 4 Replace the panhead screw Then replace and tighten the two flathead screws to secure the sleeve to the module ...

Страница 50: ...complete Wiring and Installing a Terminal Block If you are planning to use an optional terminal block with your plug in modules follow the next two procedures to connect your external wiring and install a terminal block WARNING Before you begin this task make sure you have disconnected power from all external field wiring you will be connecting to the terminal block NOTE For plug in module pinout ...

Страница 51: ...arrow 2 While pushing the tab Step 1 lift the clear plastic cover from the edge near the D sub connectors Slide the cover from under the tab holders and remove the cover 3 Make connections to the individual terminals as appropriate Use a suitable wire type gauge and insulation for your application typical is 20 AWG the terminals can accommodate a maximum of 18 AWG Use a 2 5 mm cable tie as shown f...

Страница 52: ... the terminal block cover slide the cover tabs into the tab holders on the terminal block as shown Press down on the cover until it snaps securely into place Continue with the next section to install the terminal block to the module Wire Size 20 AWG typical 18 AWG max 6 mm ...

Страница 53: ...k follow the procedure below to fasten the block to a plug in module 1 Push the levers on the terminal block to the fully open position as shown below Then slide the terminal block into the instrument mounted support sleeve until the terminal block stops at the two points indicated by the arrows below Terminal Block Support Sleeve 34980A Mainframe ...

Страница 54: ...2 Getting Started 54 Keysight 34980A Mainframe User s Guide 2 Carefully rotate the levers upward as shown until both levers are locked in the closed position ...

Страница 55: ...ight cabinets only for all other racks contact the rack s vendor The following rack mounting kits and rail kits are available from Keysight For forward rack mounting use the short brackets from the Keysight Standard rack mount kit or Y1130A Rack Mount Kit For Keysight rack cabinets use the E3663A Basic Rail Kit Keysight Part Kit Contents Y1130A Rack Mount Kit 2 short brackets for forward mounting ...

Страница 56: ...rame User s Guide For reverse rack mounting use the longer brackets see figure below from the Y1130A Rack Mount Kit For Keysight rack cabinets use the E3664AC Third Party Rail Kit Keysight 34980A shown with Reverse Rack Mount brackets installed ...

Страница 57: ...ting Started 2 Keysight 34980A Mainframe User s Guide 57 Keysight 34980A Dimensions shown with Reverse Rack Mount brackets installed 425 6 mm 16 76 in 367 7 mm 14 48 in 101 9 mm 4 01 in or 70 4 mm 2 78 in ...

Страница 58: ...all parameters required to configure a particular function or operation The Store Recall Menu Use to store and recall instrument states You can Store up to six instrument states in non volatile memory Assign a name to each storage location Recall stored states the power down state the factory reset state or a preset state The Utility menu Use to configure system related instrument parameters You c...

Страница 59: ...set measurement parameters The DMM Menu Set the internal DMM s measurement function AC volts DC volts AC current DC current 2 wire ohms 4 wire ohms temperature frequency and period Set measurement function parameters The Channel Menu Set channel measurement function AC volts DC volts AC current 34921A only DC current 34921A only 2 wire ohms 4 wire ohms temperature frequency and period Set measurem...

Страница 60: ...w errors and alarms The Advanced Key This key is reserved to operate advanced functions in a future firmware release When activated you will be notified in the release notes accompanying the enabling firmware revision The Alarm Menu Select one of four alarms to report alarm conditions on the displayed channel Configure a high limit a low limit or both for the displayed channel Select the slope ris...

Страница 61: ...The menu key in use e g Utility will be backlit to indicate that you must select a parameter or that additional parameters are required in that menu To select another choice other than the one displayed at a given menu level turn the knob To select a displayed parameter and move to the next parameter press either the lighted menu key e g Utility or ENTER To save changes keep other parameters at th...

Страница 62: ...pear in the green channel field use the knob To enter alphanumeric characters use the knob To enter numbers use the number keypad or the knob To move the display cursor position use the left and right arrow keys When you have entered all required parameters the lighting on the menu key will turn off ...

Страница 63: ... installed in slot 1 1 Using the number keypad press 1 to select the slot containing the multiplexer module 2 Select channel 27 on the module by pressing 2 and then 7 3 Press the lighted ENTER key to complete your channel selection 4 With channel 1027 selected shown in green channel field on display toggle the Close and Open keys to close and open the selected channel Note that the display shows O...

Страница 64: ...2 Getting Started 64 Keysight 34980A Mainframe User s Guide ...

Страница 65: ...ee keys in the Measure group are DMM When pressed the internal DMM takes continuous measurements on whatever signal you have routed to it This mode allows the most flexibility but you must manually control the opening and closing of relays Channel When pressed the 34980A controls the relays needed for the internal DMM to make continuous measurements on a single selected channel The measurement con...

Страница 66: ...nstalled in your 34980A or are not using a multiplexer module skip this example 1 Make sure you have a multiplexer module installed in slot 1 Select any channel on this module the channel number is shown in green channel field on display 2 Within the Configure key group press DMM to set the measurement parameters for the internal DMM Note that the DMM key lights 3 Using the knob to navigate throug...

Страница 67: ...rameter for ac voltage 6 Press EXIT MENU to save your selections ac voltage 10 volt range and immediately exit the menu All unmodified parameters within the menu remain unchanged 7 Within the Measure key group press DMM Note that the key lights and continuous ac voltage measurements are made using the internal DMM 7 ...

Страница 68: ...measurements viewed continuous measurement results and stopped the measurements Since you didn t open or close any channels no module or Analog Bus relays were exercised in this example The internal DMM acted as a stand alone instrument and measured whatever ac voltages happened to be present on the Analog Buses Pressing DMM in the Measure key group also allowed you to continuously monitor measure...

Страница 69: ...5A If you have disabled your internal DMM don t have one installed in your 34980A or are not using a multiplexer module skip this example 1 Make sure you have a multiplexer module installed in slot 1 2 Using the knob to navigate or using the number keypad select Channel 1016 the green channel field displays 1016 3 Press Channel in the Configure key group to access the configure menu for Channel 10...

Страница 70: ...t parameter in the menu 6 Use the knob to select the 100 mV range for the dc voltage function 7 Continue pressing the lighted Channel key until CHANNEL LABEL is shown 8 At the CHANNEL LABEL choice use the knob to select alphanumeric characters and the arrow keys to select the cursor position to enter a custom channel label 9 Press the lighted Channel key to save the assigned channel label and all ...

Страница 71: ...ontinuous measurements press Channel again Note that as you press Channel you will hear the relays automatically opening 12 Using steps 1 through 6 on the previous page set the following configuration for Channel 1014 for this example don t change any other measurement parameters Channel 1014 Measurement Function AC Volts Range 1V 13 Press EXIT MENU to accept the new settings and retain all other ...

Страница 72: ...ou pass Channel 1015 which is not configured for a measurement notice that the associated channel relay is open and measurement is off 17 Press Channel so the light is off Notice that Monitoring is now turned off but you can continue to view the measurement parameters on channels 1014 and 1016 During This Tutorial Example You configured channel 16 for dc voltage measurements then started viewed re...

Страница 73: ...is section provides basic instructions for establishing a GPIB USB or LAN connection between the 34980A and a PC For detailed configuration instructions for GPIB or LAN see Remote Interface Configuration on page 105 NOTE To easily configure and verify an interface connection between the 34980A and your PC you can use the Keysight IO Libraries Suite or an equivalent The Keysight IO Libraries Suite ...

Страница 74: ...prise LAN via optional routers hubs and or switches An Isolated LAN network is defined as a local area network LAN in which computers and LAN enabled instruments are not connected to a site LAN Use the crossover cable provided with the 34980A to make a direct connection between the 34980A and your computer Crossover cables are also supported by many newer LAN switches or routers Example Switch Con...

Страница 75: ... sure power is applied to your computer and verify that the operating system is fully booted Then apply power to the 34980A 3 Using the flow diagram shown below navigate through the 34980A front panel Utility menu At the IO PORT menu select LAN At the LAN SETTINGS menu select MODIFY and verify that DHCP is ON ON is the factory default state If your LAN does not support DHCP refer to the Connectivi...

Страница 76: ... 30 seconds and one minute to complete ENABLE LAN NO YES Use knob to select YES LAN SETTINGS VIEW MODIFY Use knob to make selection DHCP OFF ON Use knob to select ON EXIT MENU Utility Utility Utility LAN STATUS DHCP BOOT Use knob to select IP_ADDRESS IP_ADDRESS xxx xxx xx xx Utility EXIT MENU Utility Remote I O I O PORT LAN GPIB USB Use knob to select LAN Utility Front Panel Menu Navigation Flow D...

Страница 77: ... the integrated 34980A Web Browser Interface to access and control the instrument See Launching the Web Interface on page 85 for more information 9 If you plan to program the instrument over LAN using other software Make sure you have installed the required I O software on your computer If you will be using the Keysight IO Libraries Suite use its Connection Expert utility to add the 34980A and ver...

Страница 78: ...ossover cable provided with the 34980A connect your computer to the 34980A 2 Make sure power is applied to your computer and verify that the operating system is fully booted Then apply power to the 34980A CAT5 Crossover Cable Example Isolated Non Site LAN Connection 34980A To Network Interface Card NIC To LAN Port PC ...

Страница 79: ...MENU which saves any changes and defaults all other parameters in the Utility menu ENABLE LAN NO YES Use knob to select YES LAN SETTINGS VIEW MODIFY Use knob to make selection DHCP OFF ON Use knob to select OFF EXIT MENU Utility Utility Utility LAN STATUS DHCP BOOT Use knob to select IP_ADDRESS IP_ADDRESS xxx xxx xx xx Utility EXIT MENU Utility Remote I O I O PORT LAN GPIB USB Use knob to select L...

Страница 80: ...ter If you will be using the Keysight IO Libraries Suite use its Connection Expert utility to add the 34980A and verify a connection When identifying the instrument it is easiest if you use the IP address noted in step 5 above For an overview on programming instruments via LAN refer to the Connectivity Guide Connecting Over GPIB 1 Make sure you have installed the required I O software and device d...

Страница 81: ...ming instruments via GPIB refer to the Connectivity Guide Connecting Over USB 1 Make sure you have installed the required I O software and device drivers on your computer 2 Connect a standard USB cable between your computer and the 34980A 3 Make sure your computer and its operating system is fully booted Then apply power to the 34980A 4 The Found New Hardware Wizard will automatically start and gu...

Страница 82: ...to add the 34980A and verify a connection If you have installed any other I O software refer to documentation included with that software 10 Now you can use various programming environments to control the 34980A For an overview on programming instruments via USB refer to the Connectivity Guide NOTE If you installed the Keysight IO Libraries software this also installed the required low level softw...

Страница 83: ...are available for remote programming and control of the 34980A in addition to basic use of SCPI These include the BenchLink Data Logger software Pro and standard versions and the Web Browser Interface For a brief introduction to the BenchLink Data Logger software see Data Logging and Monitoring on page 15 The Data Logger software and software support are supplied with the 34980A on the 34980A Prod...

Страница 84: ...trument via a Java enabled Web browser such as Microsoft Internet Explorer This section provides an overview of the 34980A Web Interface While it works with the 34980A mainframe and all installed plug in modules the 34921A multiplexer module is used for illustration purposes NOTE The following tasks assume you have configured the 34980A for LAN communication and have verified connection to a LAN n...

Страница 85: ...browser and then select LAN Settings 3 From the LAN Settings dialog select activate the bypass proxy server for local addresses exact terminology depends on your browser 4 Exit the Internet Options window 5 Enter the IP address of the 34980A in the Address field and press return Either refer to the IP address you wrote on page 77 or page 80 or use the 34980A s front panel Utility menu to read the ...

Страница 86: ...4980A Web Interface s Welcome Window should appear NOTE The procedures in the following subsections will help you understand tasks commonly performed using the 34980A s Web Interface For additional help on using the interface click the Help with the Page tab on the lower left corner of the Web Interface window ...

Страница 87: ...2 Keysight 34980A Mainframe User s Guide 87 Displaying the Browser Web Control Page 1 From the Welcome Window click the Browser Web Control tab on the left side of the window to display the Browser Web Control page 2 1 ...

Страница 88: ...figuration of the module in the lowest numbered slot is shown shown in bold text To view the configuration of a different module click on the desired module name from the list slots are numbered 1 through 8 Selecting the Allow Full Control Mode Select the Allow Full Control radio button as shown Once enabled this mode allows you to open and close channel relays and modify the state of the installe...

Страница 89: ...rd is set To set a password available from the front panel only navigate to the WEB PASSWORD menu selection from the 34980A front panel as follows Utility REMOTE I O LAN LAN SETTINGS MODIFY WEB PASSWORD Use the front panel knob and control keys to enter your password then press Exit Menu to save it Once specified this password must be provided to transition from the Observe Only mode to the Allow ...

Страница 90: ...relay To open a closed channel click again on the relay graphic 2 You can also open and close the four Analog Bus relays by left clicking the graphics of these relays The Analog Bus Overview display located near the top of the window shows the slot by slot status of the four Analog Buses NOTE You must be in the Allow Full Control mode to close and open channels 1 2 ...

Страница 91: ...vidual channels e g add channel labels select function and range etc right click directly on the graphic of the desired relay The Channel Configuration dialog box for that channel is displayed 2 As an example change the label on Channel 1001 to DUT_1 Click OK NOTE You must be in the Allow Full Control mode to modify the channel configuration 1 2 ...

Страница 92: ...34980A via the SCPI Command Interface window The procedure below shows how to access this window and send commands 1 Press the Commands button at the top of the Web Browser Control page to launch the SCPI Command Interface window 2 The SCPI Command Interface window allows you to NOTE You must be in the Allow Full Control mode to send instrument commands to the 34980A 1 ...

Страница 93: ...e to wait for a command response from the instrument b Select commonly used commands to send to the instrument c Enter SCPI commands to send to the instrument You may Use Write to send the command to the instrument Use Read to read the response back from the instrument 2a 2b ...

Страница 94: ...d read back the response 3 In the Command History field you can view the last 20 commands sent to the instrument 4 You can use the SCPI Quick Reference button to access a syntax summary of all SCPI commands for the 34980A For basic SCPI command syntax and examples see SCPI Language Conventions on page 103 2c 4 3 ...

Страница 95: ... menu content and operation Front Panel at a Glance on page 38 Operating the 34980A from the Front Panel Keyboard on page 58 Chapter 3 Features and Functions These chapters are part of this Mainframe User s Guide shipped as a printed manual with the 34980A and a PDF file on the 34980A Product Reference CD You can also download the manual from the Keysight Web site at www keysight com find 34980A L...

Страница 96: ...Service Guide Shipped as a printed manual with the 34980A and a PDF file on the 34980A Product Reference CD You can also download the manual from the Keysight Web site at www keysight com find 34980A Update 34980A instrument firmware www keysight com find 34980A If you want to Go here Additional Comments ...

Страница 97: ...Voltage Measurement Configuration 140 Resistance Measurement Configuration 142 Current Measurement Configuration 143 Frequency Measurement Configuration 145 Mx B Scaling 146 Scanning 148 Monitor Mode 169 Scanning With External Instruments 171 Alarm Limits 174 Sequences 184 System Related Operations 191 Calibration Overview 200 Factory Reset State 203 Instrument Preset State 206 This chapter provid...

Страница 98: ...ainframe User s Guide For general information about the plug in modules see Chapter 4 Introduction to the Plug In Modules for the 34980A For information specific to a particular plug in module see the separate User s Guide provided for that module ...

Страница 99: ...ll through the up to eight modules installed in the 34980A and the knob to scroll through available channels With each press of an arrow key the upper display line indicates at left the channel in use in the form sccc where s is the slot number for that module and ccc is the channel number When you stop on any module the upper display line will display at right the module type briefly then change ...

Страница 100: ...ots and channels so they appear in the green channel field use the knob As you use the front panel you may be prompted to enter specific parameters The menu key in use e g Utility will be backlit to indicate that you must select a parameter or that additional parameters are required in that menu To enter alphanumeric characters use the knob To enter numbers use the number keypad or the knob To mov...

Страница 101: ...u Example 1 Setting the Time and Date on page 61 Throughout this chapter for each feature which can be controlled from the front panel the key or menu navigation sequence is provided For example the navigation instruction given to view menu choices for temperature measurement units is DMM Configure TEMPERATURE UNITS There are DMM Channel and Scan keys in both the Measure and Configure key groups P...

Страница 102: ...nectivity modes e g LAN GPIB or USB and your choice of software e g direct SCPI commands Web Browser Interface For all subsequent sections in this chapter and in the individual User s Guides accompanying the plug in modules each feature of the 34980A mainframe is documented in the following order as applicable A description of the feature its application and available choices Instructions for Fron...

Страница 103: ...sent with the command string A vertical bar separates multiple parameter choices for a given command string Triangle brackets indicate that you must specify a value for the enclosed parameter The brackets are not sent with the command string Some parameters are enclosed in square brackets This indicates that the parameter is optional and can be omitted The brackets are not sent with the command st...

Страница 104: ...10 2015 The Analog Bus relays numbered s911 s912 s913 etc on the multiplexer and matrix modules are ignored if they are included in a range of channels An error will be generated if an Analog Bus relay is specified as the first or last channel in a range of channels For example the following command closes all valid channels between channel 30 slot 1 and channel 5 slot 2 In addition this command c...

Страница 105: ...another tool For SCPI Command syntax detailed information on the SCPI commands available to program the instrument over the remote interface see the Programmer s Reference Help file included on the Keysight 34980A Product Reference CD shipped with the instrument NOTE To easily configure and verify an interface connection between the 34980A and your PC you can use the Keysight IO Libraries Suite or...

Страница 106: ...r s address for any instrument on the interface bus The GPIB address is stored in non volatile memory and does not change when power has been off after a Factory Reset RST command or after an Instrument Preset SYSTem PRESet command Front Panel Operation Utility REMOTE I O GPIB GPIB ADDRESS To set the GPIB address turn the knob or use the number keypad to select the desired address Remote Interface...

Страница 107: ...ory setting the instrument will try to obtain an IP address from a DHCP server If a DHCP server is found it will assign a dynamic IP address Subnet Mask and Default Gateway to the instrument When DHCP is disabled or unavailable the instrument will use the static IP address Subnet Mask and Default Gateway during power on If a DHCP LAN address is not assigned by a DHCP server then a static IP will b...

Страница 108: ...void confusion use only decimal expressions of byte values 0 to 255 with no leading zeros For example the 34980A assumes that all dot notation addresses are expressed as decimal byte values and strips all leading zeros from these byte values Thus attempting to set an IP address of 255 255 020 011 will become 255 255 20 11 a purely decimal expression Be sure to enter the exact expression 255 255 20...

Страница 109: ...ivate the new setting Auto IP allocates IP addresses from the link local address range 169 254 xxx xxx From the factory the Auto IP setting is enabled The Auto IP setting is stored in non volatile memory and does not change when power has been off after a Factory Reset RST command or after an Instrument Preset SYSTem PRESet command Front Panel Operation Utility REMOTE I O LAN LAN SETTINGS MODIFY D...

Страница 110: ...s actually equivalent to decimal 255 255 16 9 not 255 255 20 11 because 020 is interpreted as 16 expressed in octal and 011 as 9 To avoid confusion use only decimal expressions of byte values 0 to 255 with no leading zeros For example the 34980A assumes that all dot notation addresses are expressed as decimal byte values and strips all leading zeros from these byte values Thus attempting to set a ...

Страница 111: ... interpret byte values with leading zeros as octal numbers For example 255 255 020 011 is actually equivalent to decimal 255 255 16 9 not 255 255 20 11 because 020 is interpreted as 16 expressed in octal and 011 as 9 To avoid confusion use only decimal expressions of byte values 0 to 255 with no leading zeros For example the 34980A assumes that all dot notation addresses are expressed as decimal b...

Страница 112: ...trument s serial number If Dynamic Domain Name System DNS is available on your network and your instrument uses DHCP the Host Name is registered with the Dynamic DNS service at power on If DHCP is enabled the DHCP server can change the specified Host Name The Host Name is stored in non volatile memory and does not change when power has been off after a Factory Reset RST command or after an Instrum...

Страница 113: ...expressed in octal and 011 as 9 To avoid confusion use only decimal expressions of byte values 0 to 255 with no leading zeros For example the 34980A assumes that all dot notation addresses are expressed as decimal byte values and strips all leading zeros from these byte values Thus attempting to set an IP address of 255 255 020 011 will become 255 255 20 11 a purely decimal expression Be sure to e...

Страница 114: ...tivate the new setting If Dynamic Domain Name System DNS is available on your network and your instrument uses DHCP the Domain Name is registered with the Dynamic DNS service at power on If DHCP is enabled the DHCP server can change the specified Domain Name The Domain Name is stored in non volatile memory and does not change when power has been off after a Factory Reset RST command or after an In...

Страница 115: ...ons Any non default Mx B scaling constants All alarm settings Front Panel Operation To clear all measurement results and settings held in volatile memory cycle power to the 34980A Remote Interface Operation To clear all measurement results and settings held in volatile memory send the RST command Non Volatile Memory The following settings are stored in non volatile memory Optional channel labels R...

Страница 116: ...inframe User s Guide Remote Interface Operation To clear the stored instrument states use the MEMory STATe DELete ALL command To clear non volatile memory with the exception of the LAN MAC address and USB ID use the SYSTem SECurity IMMediate command ...

Страница 117: ...shock hazard Condensation can occur when the instrument is moved from a cold to a warm environment or if the temperature and or humidity of the environment changes quickly When used in pollution degree 1 conditions the maximum voltage rating for the Analog Buses is 300V When used in pollution degree 2 conditions the maximum voltage rating is 100V If conditions change ensure that condensation has e...

Страница 118: ...ever is less Under certain fault conditions high energy sources could provide substantially more current or power than the instrument can handle It is important to provide external current limiting such as fuses if the inputs are connected to high energy sources WARNING To avoid electric shock turn off the 34980A and disconnect or de energize all field wiring to the modules and the Analog Bus conn...

Страница 119: ...ement You can route your signals directly to the internal DMM using the 34980A multiplexer and matrix modules or you can connect to external signals via the Analog Bus connector located on instrument s rear panel see Analog Buses on page 122 Front Panel Operation To configure the most common measurement parameters for the internal DMM use the DMM Configure key To close the desired channel relays a...

Страница 120: ...m Scanning Mode In the Scanning Mode the 34980A automatically controls a sequence of measurements using the internal DMM possibly across multiple channels and stores the results in memory The 34980A closes and opens the appropriate channel relays and Analog Bus relays required for the sequence The following general rules apply to the Scanning Mode for more information on using the Scanning Mode se...

Страница 121: ...o initiate a scan and store all readings in memory use the INITiate or READ command Each time you initiate a new scan the instrument will clear the previous set of readings from memory To stop a scan in progress use the ABORt command To view the readings in memory use the FETCh command the readings are not erased when you read them NOTE You can use the READ command in one of three forms depending ...

Страница 122: ... pinout below Since four 2 wire buses are provided you can dedicate one bus for use with the internal DMM and use the other three buses for module extensions or additional signal routing between modules NOTE You can use the MEASure command in one of two forms depending on which measurement mode you wish to use If you omit the optional ch_list parameter the MEASure command applies to the internal D...

Страница 123: ...red for thermocouple measurement with this module d Impact of higher offset voltage specification 50 μV must be taken into consideration e 1 kΩ or higher range used unless 100Ω series resistors are bypassed on module f 10 kΩ or higher range used for loads over approximately 300Ω due to series resistance of FET channels Measurement Function s 34921A 40 ch Arm Mux 34922A 70 ch Arm Mux 34923A 40 ch R...

Страница 124: ... For fastest scanning operation use manual ranging on each measurement some additional time is required for autoranging since the instrument has to make a range selection Autorange thresholds If the input signal is greater than can be measured on the selected range manual ranging the instrument gives an overload indication OVLD from the front panel or 9 9E 37 from the remote interface An overload ...

Страница 125: ...pressed in number of digits the internal DMM can measure or display on the front panel You can set the resolution to 4 5 or 6 full digits plus a digit which can be 0 or 1 To increase the measurement accuracy and improve noise rejection select 6 digits To increase the measurement speed select 4 digits For ac voltage measurements the resolution is fixed at 6 digits The only way to control the readin...

Страница 126: ...ify the resolution in the same units as the measurement function not in number of digits For example if the function is dc voltage specify the resolution in volts For frequency specify the resolution in hertz You can select the resolution using parameters in the CONFigure and MEASure commands For example the following command selects the 10 Vdc range with 4 digits of resolution on the specified ch...

Страница 127: ...hanging the channel delay see Channel Delay on page 161 or by setting the ac filter to the highest frequency limit see AC Low Frequency Filter on page 141 The specified integration time is used for all measurements on the selected channel If you have applied Mx B scaling have assigned alarms to the selected channel or are using Monitor mode those measurements are also made using the specified inte...

Страница 128: ...affecting measurement accuracy When autozero is disabled the instrument takes one zero reading and subtracts it from all subsequent measurements It takes a new zero reading each time you change the function range or integration time Applies to dc voltage resistance temperature and dc current measurements only The autozero mode is set indirectly when you set the resolution and integration time Auto...

Страница 129: ...er Delays on page 130 the instrument determines the delay based on function range and integration time If you specify a trigger delay other than Automatic that same delay is used for all functions and ranges If you have configured the instrument to take more than one reading per trigger sample count 1 the specified trigger delay is inserted between the trigger and the first reading in the sample b...

Страница 130: ...hermistor 2 and 4 wire AC Voltage AC Current for all ranges Frequency Period Digital Input Totalize Integration Time Trigger Delay PLC 1 PLC 1 2 0 ms 1 0 ms Range Trigger Delay for PLC 1 Trigger Delay for PLC 1 100Ω 1 kΩ 10 kΩ 100 kΩ 1 MΩ 10 MΩ 100 MΩ 2 0 ms 2 0 ms 2 0 ms 25 ms 30 ms 200 ms 200 ms 1 0 ms 1 0 ms 1 0 ms 20 ms 25 ms 200 ms 200 ms AC Filter Trigger Delay Slow 3 Hz Medium 20 Hz Fast 20...

Страница 131: ...dules When the simulation mode is enabled the Analog Bus relays will appear to close and open as directed For example no errors are generated if you close an Analog Bus relay from the front panel remote interface or Web Interface However remember that the Safety Interlock feature prevents the actual hardware state of the Analog Bus relays from being changed When you connect a terminal block or cab...

Страница 132: ...re than the allowed 18 characters it will be truncated no error is generated From the Web Interface a limited number of characters can be displayed due to space constraints in the browser window If the user defined label it too long to be displayed properly it will be truncated no error is generated The instrument keeps a record of what module types are installed in each slot If a different module...

Страница 133: ...AN LABEL TEST_PT_1 1003 The following command clears the user defined label previously assigned to channel 3 in slot 1 The channel will now be identified by its factory default label e g MUX CH BANK 1 MATRIX1 ROW3 COL4 DIO BYTE 1 etc ROUT CHAN LABEL 1003 The following command clears all user defined channel labels on the module in slot 1 The factory default labels are assigned to all channels on t...

Страница 134: ... For example the SYSTem CTYPe response for the 34923A will be either 34923A differential mode or 34923A 1W single ended mode If you are using terminal blocks with these modules be sure to use the corresponding 2 wire or 1 wire terminal block The module configuration is stored in non volatile memory on the module and does not change when you remove the module from the mainframe after a Factory Rese...

Страница 135: ...ature units on different channels within the instrument and on the same module The CONFigure and MEASure commands automatically select C Setting the Mx B measurement label to C F or K has no effect on the temperature measurement units currently selected The instrument selects Celsius when the probe type is changed and after a Factory Reset RST command An Instrument Preset SYSTem PRESet command or ...

Страница 136: ...stored in volatile memory in the reference register Subsequent thermocouple measurements use the stored temperature as their reference The temperature remains in memory until you measure a subsequent external reference value in the reference register or remove the mainframe power If you select a fixed reference temperature specify a value between 20 C and 80 C always specify the temperature in C r...

Страница 137: ...e channel Channel Configure TEMPERATURE PROBE TYPE RTD USE AS EXT REF Remote Interface Operation You can use the CONFigure or MEASure command to select the probe type and thermocouple type For example the following command configures channel 3001 for a J type thermocouple measurement CONF TEMP TC J 3001 You can also use the SENSe command to select the probe type and thermocouple type For example t...

Страница 138: ...hannel 2 in Bank 1 and the sense connections to the HI and LO terminals on channel 22 or 37 in Bank 2 Front Panel Operation To select the 2 wire or 4 wire RTD function for the active channel choose the following items DMM or Channel Configure TEMPERATURE PROBE TYPE RTD 4W RTD To select the RTD type α 0 00385 or 0 00391 for the active channel choose the following item RTD TYPE 0 00391 0 00385 To se...

Страница 139: ...ollowing items DMM or Channel Configure TEMPERATURE PROBE TYPE THERMISTOR To select the thermistor type for the active channel choose from the following items THERMISTOR TYPE 10K 5K 2 2K Remote Interface Operation You can use the CONFigure or MEASure command to select the probe type and thermistor type For example the following command configures channel 3001 for measurements of a 5 kΩ thermistor ...

Страница 140: ...omatically select AUTO OFF fixed at 10 MΩ for all ranges The instrument selects 10 MΩ fixed input resistance on all dc voltage ranges after a Factory Reset RST command An Instrument Preset SYSTem PRESet command or Card Reset SYSTem CPON command does not change the input resistance setting Front Panel Operation DMM or Channel Configure INPUT RESISTANCE Remote Interface Operation You can enable or d...

Страница 141: ...y select the 20 Hz medium filter The instrument selects the default 20 Hz medium filter after a Factory Reset RST command An Instrument Preset SYSTem PRESet command or Card Reset SYSTem CPON command does not change the setting Front Panel Operation DMM or Channel Configure AC FILTER Remote Interface Operation Specify the lowest frequency expected in the input signal on the specified channels The i...

Страница 142: ... wire resistance measurements the instrument automatically pairs channel n in Bank 1 with channel n 20 in Bank 2 34921A 34923A 34925A or n 35 34922A 34924A to provide the source and sense connections For example make the source connections to the HI and LO terminals on channel 2 in Bank 1 and the sense connections to the HI and LO terminals on channel 22 or 37 in Bank 2 The CONFigure and MEASure c...

Страница 143: ...cts the slow 3 Hz medium 20 Hz or fast 300 Hz filter based on the input frequency that you specify for the selected channels or the internal DMM Applies to ac current and ac voltage measurements only AC Filter Settings for Current Measurements The CONFigure and MEASure commands automatically select the 20 Hz medium filter The instrument selects the default 20 Hz medium filter after a Factory Reset...

Страница 144: ...fy the lowest frequency expected in the input signal on the specified channels The instrument selects the appropriate filter based on the frequency you specify see table above SENSe CURRent AC BANDwidth 3 20 200 ch_list If you omit the optional ch_list parameter the command applies to the internal DMM ...

Страница 145: ...re and MEASure commands automatically select the 20 Hz medium filter The instrument selects the default 20 Hz medium filter after a Factory Reset RST command An Instrument Preset SYSTem PRESet command or Card Reset SYSTem CPON command does not change the setting Front Panel Operation DMM or Channel Configure AC FILTER Remote Interface Operation Specify the lowest frequency expected in the input si...

Страница 146: ... If you attempt to assign the alarm limits first the instrument will turn off alarms and clear the limit values when you enable scaling on that channel If you specify a custom measurement label with scaling it is automatically used when alarms are logged on that channel If you redefine the scan list no change will be made to the scaling state or the gain and offset values If you decide to add a ch...

Страница 147: ...umber To clear the label on the selected channel change each character to starting with the rightmost character and then press the left arrow key to move to the next character Remote Interface Operation Use the following commands to set the gain offset and custom measurement label CALC SCALE GAIN 1 2 1003 CALC SCALE OFFSET 10 1003 CALC SCALE UNIT PSI 1003 After setting the gain and offset values s...

Страница 148: ...s In addition a scan cannot include a write to a digital channel or a voltage output from a DAC channel You can however write your own program to manually create a scan to include these operations Rules for Scanning Before you can initiate a scan you must set up a scan list to include all desired multiplexer or digital channels Channels which are not in the scan list are skipped during the scan By...

Страница 149: ...e ABus3 and ABus4 relays is not altered and these relays remain available for use during the scan However be sure to use CAUTION when closing these relays on banks involved in the scan While the scan is running any signals present on ABus3 and or ABus4 will be joined with the scanned measurement on ABus1 and ABus2 While the scan is running the instrument prevents use of all channels in banks that ...

Страница 150: ...ry If a scan is in progress when the command is received the scan will not be completed and you cannot resume the scan from where it left off Note that if you initiate a new scan all readings are cleared from memory You can use either the internal DMM or an external instrument to make measurements of your configured channels However the 34980A allows only one scan list at a time you cannot scan so...

Страница 151: ...tored readings If you have not defined a scan list Scan Measure performs an internal DMM scan independent of any channels To stop a scan in progress press and hold Scan Measure To Build a Scan List From the Remote Interface Use the ROUTe SCAN command to define the list of channels in the scan list To determine what channels are currently in the scan list use the ROUTe SCAN query command To add cha...

Страница 152: ...e MEASure or INITiate command You can start a scan when an external TTL trigger pulse is received You can start a scan when an alarm event is logged on the channel being monitored Interval Scanning In this configuration you control the frequency of scan sweeps by selecting a wait period from the start of one trigger to the start of the next trigger called the trigger to trigger interval If the sca...

Страница 153: ...eration Scan Configure INTERVAL SCAN INTERVAL To initiate the scan and store all readings in memory press the Scan Measure key Between scan sweeps WAITING FOR TRIG will be displayed on the front panel Note To stop a scan press and hold the Scan Measure key Remote Interface Operation The following program segment configures the instrument for an interval scan Note To stop a scan send the ABORt comm...

Страница 154: ...segment configures the instrument for a manual scanning operation Then send the TRG trigger command to begin each scan sweep The TRG command will not be accepted unless the internal DMM is in the wait for trigger state Note To stop a scan send the ABORt command Scanning on Alarm In this configuration the instrument initiates a scan each time a reading crosses an alarm limit on a channel You can al...

Страница 155: ...l be accepted before terminating the scan See Trigger Count on page 157 for more information Mx B scaling and alarm limits are applied to measurements during a manual scanning operation and all data is stored in volatile memory Front Panel Operation Scan Configure ALARM To enable the Monitor function select the desired channel and then press the DMM or Channel Measure key To initiate the scan pres...

Страница 156: ...fy a scan count which sets the number of external pulses the instrument will accept before terminating the scan See Trigger Count on page 157 for more information TRIG SOURCE ALARM1 TRIG SOURCE ALARM CONT CALC LIM UPPER 10 25 1003 CALC LIM UPPER STATE ON 1003 OUTPUT ALARM1 SOURCE 1003 ROUT MON CHAN 1003 ROUT MON CHAN ENABLE ON 1003 ROUT MON STATE ON INIT Select alarm configuration Select continuou...

Страница 157: ...readings are stored in memory Note To stop a scan press and hold the Scan Measure key Remote Interface Operation The following program segment configures the instrument for an external scan Note To stop a scan send the ABORt command Trigger Count You can specify the number of triggers that will be accepted by the internal DMM before returning to the idle state The trigger count applies to both sca...

Страница 158: ...e setting Front Panel Operation Scan Configure SCAN TRIGGER COUNTED INFINITE Remote Interface Operation TRIGger COUNt To configure a continuous scan send TRIG COUNT INFINITY Sweep Count The sweep count sets the number of sweeps per trigger event during a scan a sweep is one pass through the scan list The front panel sample annunciator turns on during each measurement Sweep count The sweep count is...

Страница 159: ...d The CONFigure and MEASure commands automatically set the sweep count to 1 sweep The instrument sets the sweep count to 1 after a Factory Reset RST command An Instrument Preset SYSTem PRESet command or Card Reset SYSTem CPON command does not change the setting Front Panel Operation Scan Configure SWEEP COUNT Remote Interface Operation SWEep COUNt Sample Count The sample count sets the number of a...

Страница 160: ...ify a sample count in conjunction with a trigger count and a sweep count The three parameters operate independent of one another and the total number of readings returned will be the product of the three parameters You can store at least 500 000 readings in memory and all readings are automatically time stamped If memory overflows the new readings will overwrite the first oldest readings stored th...

Страница 161: ...ation Scan Configure SAMPLE COUNT Remote Interface Operation SAMPle COUNt Channel Delay You can control the pacing of a scan sweep by inserting a delay between multiplexer channels in the scan list useful for high impedance or high capacitance circuits The delay is inserted between the relay closure and the actual measurement on the channel in addition to any delay that will implicitly occur due t...

Страница 162: ...he module The channel delay is valid only while scanning If no channels have been assigned to the scan list the specified channel delay is ignored no error is generated To ensure you are getting the most accurate measurements possible use care when setting the channel delay less than the default value automatic The default channel delay is designed to optimize parameters such as settling time for ...

Страница 163: ...AY 2 1003 1013 Automatic Channel Delays If you do not specify a channel delay the instrument selects a delay for you The delay is determined by the delay based on function range integration time and ac filter setting DC Voltage Thermocouple DC Current for all ranges Resistance RTD Thermistor 2 and 4 wire Integration Time Channel Delay PLC 1 PLC 1 2 0 ms 1 0 ms Range Channel Delay for PLC 1 Channel...

Страница 164: ...the ROUTe CHANnel DELay command see Channel Delay on page 161 disables the automatic channel delay Reading Format During a scan the instrument automatically adds a time stamp to all readings and stores them in memory Each reading is stored with measurement units time stamp channel number and alarm status information From the remote interface you can specify which information you want returned with...

Страница 165: ...after a Factory Reset RST command Remote Interface Operation Use the following commands to select the reading format FORMat READing ALARm ON FORMat READing CHANnel ON FORMat READing TIME ON FORMat READing TIME TYPE ABSolute RELative FORMat READing UNIT ON 1 2 Reading with units 26 195 C Time since start of scan 17 ms 3 4 Channel number Alarm limit threshold crossed 0 No Alarm 1 LO 2 HI 2 61950000E...

Страница 166: ...the same channel are allowed For example 2001 2001 2001 and 3010 1003 1001 1005 are valid and the channels will be scanned in the order presented When you specify a range of channels in the scan list the channels are always sorted in ascending order regardless of the scan order setting Therefore 1009 1001 will always be interpreted as 1001 1002 1003 etc If you define a scan list with the sequentia...

Страница 167: ...memory after a Factory Reset RST command after an Instrument Preset SYSTem PRESet command or when mainframe power is cycled The instrument clears all readings from memory when a new scan is initiated when any measurement parameters are changed CONFigure and SENSe commands and when the triggering configuration is changed TRIGger commands While a scan is running the instrument automatically stores t...

Страница 168: ...lowing command to determine the total number of readings stored in memory all channels from the most recent scan DATA POINTS The following command reads and clears the specified number of readings from memory This allows you to continue a scan without losing data stored in memory if memory becomes full new readings will overwrite the first readings stored The specified number of readings are clear...

Страница 169: ... can change the channel being monitored at any time A scan in progress always has priority over the Monitor function Channels do not have to be part of an active scan list to be monitored however the channel must be configured for a measurement in order to be monitored The Monitor mode ignores all trigger settings and takes continuous readings on the selected channel using the IMMediate continuous...

Страница 170: ...DE CHANnel DMM The following program segment selects the channel to be monitored specify only one channel and enables the Monitor function ROUTE MON CHAN 1003 ROUTE MON CHAN ENABLE ON 1003 ROUTE MON STATE ON The following program segment enables the Monitor function on the internal DMM ROUTE MON MODE DMM ROUTE MON STATE ON To read the monitor data from the selected channel or the internal DMM send...

Страница 171: ...tiplexer s COM terminals see below or you can connect to the 34980A s analog buses The figure on the following page shows the external connections required to synchronize the scan sequence between the 34980A and an external instrument The 34980A must notify the external instrument when a relay is closed and fully settled including channel delay The 34980A outputs a Channel Closed pulse from pin 5 ...

Страница 172: ... as needed You can configure the event or action that controls the onset of each sweep through the scan list a sweep is one pass through the scan list The selected source is used for all channels in the scan list For more information refer to Scan Trigger Source on page 152 You can configure the event or action that notifies the 34980A to advance to the next channel in the scan list Note that the ...

Страница 173: ...4A to provide the source and sense connections For example make the source connections to the HI and LO terminals on channel 2 in Bank 1 and the sense connections to the HI and LO terminals on channel 22 or 37 in Bank 2 Front Panel Operation To select the channel advance source choose the following items Scan Configure ADVANCE CHANNEL AUTO EXT MANUAL To initiate the scan and store all readings in ...

Страница 174: ...running when the alarm occurs 1 If an alarm event occurs on a channel as it is being scanned then that channel s alarm status is stored in reading memory as the readings are taken Each reading that is outside the specified alarm limits is logged in memory You can store at least 500 000 readings in memory during a scan You can read the contents of reading memory at any time even during a scan Readi...

Страница 175: ...values first If you attempt to assign the alarm limits first the instrument will turn off alarms and clear the limit values when you enable scaling on that channel If you specify a custom measurement label with scaling it is automatically used when alarms are logged on that channel If you redefine the scan list alarms are no longer evaluated on those channels during a scan but the limit values are...

Страница 176: ...e using alarms In addition to being stored in reading memory alarms are also recorded in their own SCPI status system You can configure the instrument to use the status system to generate a Service Request SRQ when alarms are generated Refer to the Keysight 34980A Programmer s Reference Help file for more information on the Status System Upper Limit Lower Limit Alarm Event No Alarm An alarm is ena...

Страница 177: ... HIGH LIMIT THIS CHANNEL ALARM After selecting the lower and upper limit for the selected channel assign one of the four alarm numbers Note that the instrument does not start evaluating the alarm conditions until you exit the Alarm menu Remote Interface Operation To assign the alarm number to report any alarm conditions on the specified channels use the following command if not assigned all alarms...

Страница 178: ...memory from the previous scan Up to 20 alarms can be logged in the alarm queue If more than 20 alarm events are generated only the first 20 alarms are saved The alarm queue is cleared only by the CLS clear status command when power is cycled or by reading all alarm entries Front Panel Operation View ALARMS From the front panel you can view the first 20 alarms in the queue After turning the knob to...

Страница 179: ... send a TTL pulse to your control system You can assign an alarm to any configured channel and multiple channels can be assigned to the same alarm number Each alarm output line represents the logical OR of all channels assigned to that alarm number an alarm on any of the associated channels will pulse the line Alarms connector as viewed from rear of instrument 1 2 3 Reading with Units 26 195 C Dat...

Страница 180: ...nly when a reading crosses a limit and remains outside the limit When a reading returns to within limits the output line is automatically cleared You can manually clear the output lines at any time even during a scan and the alarm data in memory is not cleared however data is cleared when you initiate a new scan The alarm outputs are also cleared when you initiate a new scan You can control the sl...

Страница 181: ...pecific count is reached on a totalizer channel 34950A and 34952A These channels do not have to be part of the scan list to generate an alarm Alarms are evaluated continuously as soon as you enable them The channel numbering scheme for the digital input and totalizer channels is shown below s represents the slot number Pattern comparisons always start on the lowest numbered channel in the bank and...

Страница 182: ...ific pattern is read Alarm COMPARE FOR EQUAL NOT EQ To configure an alarm on a specific totalizer count select Alarm TOTALIZER LIMIT Remote Interface Operation Digital Input To assign the alarm number to report any alarm conditions on the specified digital input channels use the following command OUTPut ALARm 1 2 3 4 SOURce ch_list To configure alarms on the specified digital input channel use the...

Страница 183: ...n the alarm number to report any alarm conditions on the specified totalizer channels use the following command OUTPut ALARm 1 2 3 4 SOURce ch_list To configure an alarm on a totalizer channel specify the desired count as the upper limit using the following command CALCulate LIMit UPPer count ch_list To enable the upper limit on the specified totalizer channel use the following command CALCulate L...

Страница 184: ... Programmer s Reference Help file Sequence Definition ROUTe SEQuence DEFine name commands ROUTe SEQuence DEFine name Defines a sequence Returns sequence definition Sequence Execution ROUTe SEQuence ABORT ROUTe SEQuence BUSY ROUTe SEQuence RUNNing NAME ROUTe SEQuence TRIGger IMMediate ROUTe SEQuence WAIT Terminates currently running sequence Returns 1 if sequence is executing busy Returns name of c...

Страница 185: ...EQuence TRIGger IMMediate name SENSe TOTalize CLEar IMMediate ch_list SOURce CURRent LEVel current MIN MAX DEF ch_list SOURce DIGital DATA BYTE 1 WORD 2 LWORd 4 data ch_list SOURce DIGital DATA BIT 0 1 bit ch_list SOURce FUNCtion TRIGger IMMediate ch_list SOURce VOLTage LEVel voltage MIN MAX DEF ch_list SYSTem BEEPer SYSTem DELay IMMediate time Sequences can be defined from the remote interface on...

Страница 186: ...nce may reference another undefined sequence however at the time of execution an error will be generated if an undefined sequence is invoked Up to 500 unique sequences can be stored in non volatile memory Each sequence is limited to 1024 bytes While a scan is running see Scanning on page 148 the instrument prevents use of all channels in banks that contain one or more channels in the specified sca...

Страница 187: ...s they were specified Front Panel Operation Sequence VIEW Remote Interface Operation The following command returns a string containing the SCPI commands assigned to the specified sequence ROUT SEQ DEF MYSEQ_1 The above command returns a string in the form the quotes are also returned ROUT CLOS 1001 1009 ROUT OPEN 2001 Executing a Sequence After you have defined a valid sequence you can execute it ...

Страница 188: ...tion While a scan is running see Scanning on page 148 the instrument prevents use of all channels in banks that contain one or more channels in the specified scan list these channels are dedicated to the scan Therefore if a sequence attempts to operate a channel in a scanned bank an error is generated and the entire sequence will be discarded Front Panel Operation Sequence EXECUTE Although sequenc...

Страница 189: ...been reassigned the alarm has been cleared the association of the sequence to the alarm has been re established and the alarm condition exists again Front Panel Operation Sequence TRIGGER MANUAL ALARM1 ALARM4 Select MANUAL to remove an association without reassigning it to another alarm Remote Interface Operation To assign the sequence to a specific alarm number use the following command Specify t...

Страница 190: ...on Front Panel Operation Sequence DELETE DELETE ALL Remote Interface Operation The following command deletes the sequence named MYSEQ_1 ROUT SEQ DEL MYSEQ_1 The following command deletes all sequences from memory ROUT SEQ DEL ALL Reading the List of Stored Sequences From the remote interface only you can read the names of all sequences currently stored in memory When stored in memory the user defi...

Страница 191: ... internal DMM and all plug in modules one firmware revision number is returned Front Panel Operation Utility FIRMWARE REVISIONS Use the knob to scroll through the revision numbers for the mainframe internal DMM and each installed module Remote Interface Operation Use the following command to read the mainframe firmware revision numbers be sure to dimension a string variable with at least 72 charac...

Страница 192: ...e instrument has five storage locations in non volatile memory to store instrument states numbered 1 through 5 You can assign a user defined name to each of locations 1 through 5 You can store the instrument state in any of the five locations but you can only recall a state from a location that contains a previously stored state The instrument stores the state of all plug in modules including all ...

Страница 193: ...hange each character to starting with the rightmost character and then press the left arrow key to move to the next character To automatically recall a specific location when power is restored select AUTO Use the knob to scroll through the available locations containing a stored state Remote Interface Operation Use the following commands to store and recall instrument states SAV 1 2 3 4 5 RCL 1 2 ...

Страница 194: ...Interlock etc Errors are retrieved in first in first out FIFO order The first error returned is the first error that was stored Errors are cleared as you read them Once you have read all of the interface specific errors the errors in the global queue are retrieved Errors are cleared as you read them When you have read all errors from the interface specific and global error queues the ERROR annunci...

Страница 195: ...pass you can have high confidence that the instrument and all installed plug in modules are operational This feature is available from the remote interface only If you have a 34951A Isolated DAC Module installed the complete self test will require an additional 15 seconds to complete per DAC module a memory test is performed The complete self test will abort if any signals are connected to ABus1 v...

Страница 196: ...splay up to 18 characters on the upper line of the front panel display any additional characters are truncated no error is generated You can use letters A Z numbers 0 9 and special characters like etc Use the character to display a degree symbol Commas periods and semicolons share a display space with the preceding character and are not considered individual characters While a message is displayed...

Страница 197: ...lock During a scan the instrument stores all readings and alarms with the current time and date based on a 24 hour clock When shipped from the factory the instrument is set to the current time and date for Greenwich Mean Time GMT After mainframe power has been cycled the time is truncated downward to the nearest second no rounding occurs If a real time accuracy of greater than 1 second is required...

Страница 198: ...rnal DMM setting is stored in volatile memory and will be enabled ON when power is turned off or after a Factory Reset RST command Front Panel Operation Utility DMM Remote Interface Operation INSTrument DMM STATe OFF ON Relay Cycle Count The instrument has a Relay Maintenance System to help you predict relay end of life The instrument counts the cycles on each relay in the instrument and stores th...

Страница 199: ... DIAG RELAY CYCLES CLEAR 1003 1911 SCPI Language Version The instrument complies with the rules and conventions of the present version of SCPI Standard Commands for Programmable Instruments You can determine the SCPI version with which the instrument is in compliance by sending a command from the remote interface You can query the SCPI version from the remote interface only The SCPI version is ret...

Страница 200: ... not change when power has been off after a Factory Reset RST command or after an Instrument Preset SYSTem PRESet command The security code can contain up to 12 characters The first character must be a letter A Z but the remaining 11 characters can be letters numbers 0 9 or the underscore character _ Blank spaces are not allowed You do not have to use all 12 characters but the first character must...

Страница 201: ...rface operation only Note that your instrument was calibrated before it left the factory When you receive your instrument be sure to read the various counts to determine the initial values The calibration count is stored in non volatile memory in the mainframe and does not change when power has been off after a Factory Reset RST command or after an Instrument Preset SYSTem PRESet command The calib...

Страница 202: ...ote interface and only when the instrument is unsecured You can read the calibration message whether the instrument is secured or unsecured The calibration message may contain up to 40 characters From the front panel you can view 18 characters of the message at a time Storing a calibration message will overwrite any message previously stored in memory The calibration message is stored in non volat...

Страница 203: ...rigger Count Trigger Delay Trigger Source DC Volts Autorange 5 Digits 1 PLC 10 MΩ fixed for all DCV ranges No Change Automatic Delay Reading Only no units channel time 1 Sample per Trigger 1 Trigger Automatic Delay Immediate Scanning Operations Factory Reset State Scan List Reading Memory Min Max and Average Sweep Count Trigger Interval Monitor in Progress Empty All Readings are Cleared All Statis...

Страница 204: ...tiplexer Modules Matrix Modules GP Modules RF Modules Microwave Modules System Control Modules All Channels Open 2 Wire 1 Wire Mode No Change All Channels Open 2 Wire 1 Wire Mode No Change All Channels Open Channels b01 and b02 Selected b Bank 34945A All Channel Drives Default 34946A Channels 101 and 201 to COM 34947A Channels 101 201 and 301 to COM 34950A DIO Ports Input Count 0 Trace Patterns ar...

Страница 205: ... Keysight 34980A Mainframe User s Guide 205 System Related Operations Factory Reset State Display State Error Queue Stored States System Date System Time Temperature Units On Errors Not Cleared No Change No Change No Change C ...

Страница 206: ...Format Sample Count Trigger Count Trigger Delay Trigger Source No Change No Change No Change No Change No Change No Change No Change No Change No Change No Change No Change No Change Scanning Operations Preset State Scan List Reading Memory Min Max and Average Sweep Count Trigger Interval Monitor in Progress No Change All Readings are Cleared All Statistical Data is Cleared No Change No Change Sto...

Страница 207: ...iplexer Modules Matrix Modules GP Modules RF Modules Microwave Modules System Control Modules All Channels Open 2 Wire 1 Wire Mode No Change All Channels Open 2 Wire 1 Wire Mode No Change All Channels Open Channels b01 and b02 Selected b Bank 34945A All Channel Drives Default 34946A Channels 101 and 201 to COM 34947A Channels 101 201 and 301 to COM 34950A DIO Ports Input Count 0 Trace Patterns are...

Страница 208: ...ions 208 Keysight 34980A Mainframe User s Guide System Related Operations Preset State Display State Error Queue Stored States System Date System Time Temperature Units On Errors Not Cleared No Change No Change No Change C ...

Страница 209: ...odules at a Glance 211 Slot and Channel Addressing Scheme 213 Interconnection Solutions Overview 215 Module Considerations 217 This chapter provides an overview of the plug in modules available for the 34980A For specific instructions applicable to a particular module consult that module s User s Guide see User s Guides for the 34980A s Plug In Modules on page 210 for a list of these manuals ...

Страница 210: ...ght Part Covers Modules Title 34980 90021 34921A 34925A LF Multiplexer Module User s Guide 34980 90031 34931A 34933A Matrix Module User s Guide 34980 90034 34934A High Density Matrix Module User s Guide 34980 90037 34937A 34939A General Purpose Switch Module User s Guide 34980 90041 34941A 34942A RF Multiplexer Module User s Guide 34980 90045 34945A Microwave Switch Attenuator Driver Module User s...

Страница 211: ... 2 or 4 wire 34924A 70 channel reed multiplexer 150V 0 5A 25 MHz 500 3 μV Config as 2 or 4 wire 34925A 40 channel optically isolated FET multiplexer 80V 0 02A 1 MHz 1000 3 μV Config as 1 2 or 4 wire Matrix Modules 34931A Dual 4x8 armature matrix 300V 1A 30 MHz 100 3 μV Backplane expandable 34932A Dual 4x16 armature matrix 300V 1A 30MHz 100 3 μV Backplane expandable 34933A Dual Quad 4x8 reed matrix...

Страница 212: ...z or 20 GHz 1 15 1 30 50Ω 4 GHz 20 GHz System Control Modules 34950A 64 bit digital I O with memory and counter Eight 8 bit digital I O channels with programmable polarity thresholds up to 5V with handshaking protocols and pattern memory Two 10MHz frequency counters and programmable clock output to 20 MHz 34951A 4 channel isolated D A converter with waveform memory Output DC voltage up to 16 V or ...

Страница 213: ...shown below The slot and channel addressing scheme for the 34980A follows the form sccc where s is the mainframe slot number 1 through 8 and ccc is the three digit channel number Note that MUX channels numbers are derived differently from matrix modules and channel numbers for matrix modules are derived differently between 1 wire and 2 wire configuration modes Slot Number Indicators ...

Страница 214: ...el of interest is 921 Analog Bus relay on ABus1 MUX and matrix channel numbers for the Analog Bus relays are determined by the number assigned to the relays 5304 A 34931A 34932A 34933A 2 wire mode matrix module is in slot 5 crosspoint is row 3 column 4 Matrix module in 2 wire mode channel numbers are derived from the crosspoint or intersection of rows and columns columns having two digits 2437 A 3...

Страница 215: ...l block is customized for a specific module not available for RF and microwave modules Ordering Information 349xxT e g 34921T 34922T etc Shielded Cables Standard cables are available for 50 pin D sub and 78 pin D sub connectors Depending on the module and your specific requirements one or two cables may be required per module Ordering Information Y1135A 1 5 meters 50 pin D sub 300V Y1136A 3 meters...

Страница 216: ...oduction to the Plug In Modules for the 34980A 216 Keysight 34980A Mainframe User s Guide Solder Cup Connectors 50 or 78 Pin D Sub 300V Shielded Cables 50 or 78 Pin D Sub 349xxT Terminal Block Module Specific ...

Страница 217: ...ensation can occur when the modules are moved from a cold to a warm environment or if the temperature and or humidity of the environment changes quickly The table on page 218 shows maximum voltage current and power dissipation ratings for each module If conditions change ensure that condensation has evaporated and the instrument has thermally stabilized until pollution degree 1 conditions are rest...

Страница 218: ...50 mA 40 80 channels 80 Vpeak 50 mA 34931A Dual 4x8 matrix 300 Vrms or VDC 1A 60 VA per channel Dual 4x8 matrix 100 Vrms or DC 1A 60 VA per channel 34932A Dual 4x16 matrix 300 Vrms or VDC 1A 60 VA per channel Dual 4x16 matrix 100 Vrms or DC 1A 60 VA per channel 34933A Dual quad 4x8 matrix 150 Vpeak 0 5A 10 VA per channel Dual quad 4x8 matrix 100 Vpeak 0 5A 10 VA per channel 34934A High Density mul...

Страница 219: ... 0 5A 10W per channel 34945A See 34945A User s Guide See 34945A User s Guide 34946A Dual channel 7V 1W per channel 4 GHz or 20 GHz Dual channel 7V 1W per channel 4 GHz or 20 GHz 34947A Triple channel 7V 1W per channel 4 GHz or 20 GHz Triple channel 7V 1W per channel 4 GHz or 20 GHz 34950A 64 channels 5V 30 mA Max 64 channels 5V 30 mA Max 34951A 4 channels 16V 20 mA 4 channels 16V 20 mA 34952A 32 D...

Страница 220: ...Under certain fault conditions high energy sources could provide substantially more current or power than a module can handle It is important to provide external current limiting such as fuses if the module inputs are connected to high energy sources WARNING Do not connect any of the modules directly to a mains power outlet If it is necessary to measure a mains voltage or any circuit where a large...

Страница 221: ...rter with Waveform Memory 212 34952A Multifunction Module with 32 Bit Digital I O 2 Channel D A and Totalizer 212 34959A Breadboard Module 212 34980A documentation 95 simplified block diagram 17 4W channel pairing 142 5063 9214 Standard Rack Mount Kit 55 A A D conversion 26 abort measurements 120 absolute reading format 164 ABus connector 40 43 122 ac current measurements 143 low frequency filter ...

Страница 222: ... 15 date 197 dc current measurements 143 dc input resistance 140 dc voltage measurements 140 input resistance 140 default reset state 203 default gateway 111 degrees C 135 degrees F 135 delay trigger 129 DHCP 75 79 107 differential mode 134 digital input 31 digital output 33 digital voltage output 34 dimensions rack mounting 57 Display 99 display annunciators 44 disabling 196 displaying message 19...

Страница 223: ... via 78 description 74 ITS 90 software conversions 135 IVI C IVI COM 83 K kelvins 135 keyboard operation 58 keys front panel 38 knob 39 L labels 132 LAN Auto IP 109 connector 40 DHCP 107 DNS 112 DNS server 113 domain name 114 gateway 111 host name 112 IP address 108 network types 74 operating the 34980 over 84 subnet mask 110 latch mode alarms 180 launching the web browser 85 learn more 95 Local k...

Страница 224: ...ons See 34980A Data Sheet www keysight com find 34980a programming conventions 103 programming environments 83 programming errors See 34980A Programmer s Reference Help file R R0 values RTDs 138 rack mount kits 55 rack mounting 55 instrument dimensions 57 reverse orientation 56 57 radix 197 rail kits 55 range 124 selection example 67 reading format 164 reading memory available 167 reading memory l...

Страница 225: ... 192 subnet mask 110 sweep count 158 syntax conventions 103 system cabling 19 system clock 197 system control modules list 212 specifications 212 system processor 27 T temperature limits 117 temperature measurements 135 temperature units 135 terminal blocks 215 installation 53 wiring 51 testing software 17 text message 196 thermistor types 139 thermistor measurements 139 thermistor types 135 therm...

Страница 226: ...226 Keysight 34980A Mainframe User s Guide Y Y1130A Rack Mount Kit 55 Y113xA cables 215 Y114xA connectors 215 YSI 44000 series thermistors 135 ...

Страница 227: ...ight website for the latest revision Keysight Technologies 2004 2019 Edition 10 August 20 2019 Printed in Malaysia 34980 90005 34980 90005 www keysight com Sie haben Fragen oder wünschen eine Beratung Angebotsanfrage unter 07121 51 50 50 oder über info datatec de Distributed by ...

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