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6517B-900-01 Rev. A / Jun 2008

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Section Topics

4-13

Model 6517B Electrometer User’s Manual

Section 4: Measurement Options

Speed

SPEED sets the integration time of the A/D converter, the period of time the input signal is
measured. The SPEED can be set for each measurement function. The integration time is
specified in parameters based on a number of power line cycles (NPLC), where one PLC for 60Hz
is 16.67msec and one PLC for 50Hz and 400Hz is 20msec.

In general, the fastest integration time (0.01 PLC) results in increased reading noise and less
usable resolution, while the slowest integration time (10 PLC) provides the best common-mode
and normal-mode rejection. In-between settings are a compromise between speed and noise.

Configuring speed

Each measurement function can have a unique integration time. Speed is set from the configure
function menu structures. The procedure is summarized as follows:

1.

Press

the

CONFIG

key and then the desired function key.

2.

Use the cursor keys to select

SPEED

and press

ENTER

to display the following speed

options:

NORMAL:

Sets the integration time to 1 PLC.

FAST:

Sets the integration time to 0.01 PLC.

MEDIUM:

Sets the integration time to 0.1 PLC.

HIACCURACY:

Sets the integration time to 10 PLC.

SET-SPEED-EXACTLY:

This options prompts you to enter a PLC value (0.01 to 10)

SET-BY-RESOLUTION:

Automatically optimizes the integration time for the present

resolution setting (see Section 4 of the Reference Manual).

3.

Use the menu items to configure speed. A menu item is selected by placing the cursor
(blinking menu item) on it and pressing

ENTER

. Parameter values are changed using the

cursor keys and the

RANGE

keys, and then pressing

ENTER

information on navigating through the menu structure).

For more information, see Section 4 of the Reference Manual.

Resolution

All functions can operate from 3½ to 6½ digits of resolution. Each function can have a unique
resolution setting.

Configuring resolution

Perform the following steps to set resolution for a measurement function:

1.

Press

the

CONFIG

key and then the desired function key.

2.

Using the cursor keys, select

RESOLUTION

and press

ENTER

to display the following

resolution options:

a.

3.5 to 6.5d:

Select one of these options to set the display resolution.

b.

AUTO:

This option automatically optimizes the resolution for the present integration

time (speed) setting (see Section 5 of the Reference Manual).

3.

Set resolution by placing the cursor on the menu option and pressing

ENTER

.

Filter

Filtering stabilizes noisy measurements. The Model 6517B uses a digital filter and a median filter.
When a filter is enabled by pressing

FILTER

(FILT annunciator turns on), the selected filter for that

measurement function is in effect. Pressing

FILTER

a second time disables the filter.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

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Summary of Contents for 6517B

Page 1: ... 2008 www keithley com A G R E A T E R M E A S U R E O F C O N F I D E N C E Model 6517B Electrometer User s Manual 6517B 900 01 Rev A June 2008 6517B 900 01 A June 2008 qxp 6 12 08 9 08 AM Page 1 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Page 2: ...ION OF WARRANTY This warranty does not apply to defects resulting from product modification without Keithley Instruments express written consent or misuse of any product or part This warranty also does not apply to fuses software non rechargeable batteries damage from battery leakage or problems arising from normal wear or failure to follow instructions THIS WARRANTY IS IN LIEU OF ALL OTHER WARRAN...

Page 3: ...Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 4: ...nts Inc is strictly prohibited TSP TSP Link and TSP Net are trademarks of Keithley Instruments Inc All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments Inc Other brand names are trademarks or registered trademarks of their respective holders Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 5: ...Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 6: ...ement Category I and Measurement Category II as described in the International Electrotechnical Commission IEC Standard IEC 60664 Most measurement control and data I O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over voltages Measurement Category II connections require protection for high transient over voltages o...

Page 7: ...cautions to avoid personal contact with these voltages The symbol on an instrument shows that the surface may be hot Avoid personal contact to prevent burns The symbol indicates a connection terminal to the equipment frame If this symbol is on a product it indicates that mercury is present in the display lamp Please note that the lamp must be properly disposed of according to federal state and loc...

Page 8: ... Secondary display line 2 7 Bench defaults 2 7 Restoring bench defaults 2 7 Function default settings 2 7 3 Basic Measurements 3 1 Introduction 3 2 Changing functions 3 2 Voltage measurements 3 2 Guarding 3 3 Current measurements 3 4 Resistance measurements 3 5 Auto V Source 3 6 Amps Rel 3 6 Resistivity measurements 3 7 Charge measurements 3 9 Auto discharge 3 10 Temperature and humidity measureme...

Page 9: ...17 Enabling math 4 18 Additional math operations 4 18 Test sequences 4 19 Configuring test sequences 4 19 Connections 4 20 Running a test 4 21 Internal scanning 4 21 Configure internal scanner 4 21 Perform the scan 4 21 Close open channels 4 22 External scanning 4 22 Trigger connections 4 23 Configure external channels 4 23 Perform the scan 4 23 5 Remote Operation 5 1 Overview 5 2 Software support...

Page 10: ...2008 iii Section Topic Page Generating SRQ on buffer full 5 16 Storing readings in the buffer 5 17 Taking readings with the scanner card 5 18 Test sequence Staircase sweep 5 19 Index I 1 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 11: ... Contents Model 6517B Electrometer User s Manual iv 6517B 900 01 Rev A Jun 2008 This page left blank intentionally Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 12: ...isplay 4 5 4 Figure 4 2 Independent V Source connections 4 8 4 Figure 4 3 FVMI connections 4 8 4 Figure 4 4 Basic trigger model simplified 4 11 4 Figure 4 5 Advanced trigger model simplified 4 11 4 Figure 4 6 Filter response noise window 4 14 4 Figure 4 7 Combining math calculations 4 18 4 Figure 4 8 Typical FVMI connections 4 20 4 Figure 4 9 Trigger connections using trigger link 4 23 5 Figure 5 ...

Page 13: ...ge left blank intentionally List of Figures Model 6517B Electrometer User s Manual vi 6517B 900 01 Rev A Jun 2008 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 14: ...menu summary 4 5 4 Table 4 3 Configuration settings for each measurement function 4 6 4 Table 4 4 Configuration settings for instrument operations 4 6 4 Table 4 5 Menu summary 4 7 List of Tables Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 15: ...ge left blank intentionally List of Tables Model 6517B Electrometer User s Manual viii 6517B 900 01 Rev A Jun 2008 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 16: ...res overview 1 2 Options and accessories 1 3 Specifications 1 5 Unpacking and inspection 1 5 Inspection for damage 1 5 Handling precautions 1 5 Shipment contents 1 5 Repacking for shipment 1 6 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 17: ...rge measurements from 10fC to 2 1μC Resistance measurements from 10Ω to 210PΩ Surface resistivity measurements Volume resistivity measurements External temperature measurements from 25 C to 150 C using the supplied Model 6517 TP thermocouple Relative humidity measurements 0 to 100 using the optional Model 6517 RH probe Some additional capabilities of the Model 6517B include Built in V Source The 1...

Page 18: ...r lets you connect a BNC cable to the triax input of the Model 6517B Suitable for use with the Model 6517B in high voltage applications Models 7078 TRX 3 7078 TRX 10 and 7078 TRX 20 Triax Cables These are low noise triax cables terminated at both ends with 3 slot male triax connectors The Model 7078 TRX 3 is 3ftft 0 9m in length the Model 7078 TRX 10 is 10ft 3m in length and the Model 7078 TRX 20 ...

Page 19: ...ive humidity measurements 0 to 100 Also included is an extension cable part number CA 129 1 Model 6517 TP Thermocouple with Leads This type K thermocouple sensor allows the Model 6517B to make external temperature measurements from 190 C to 1350 C Scanner cards Model 6521 Low Current Scanner Card This 10 channel low current scanner card is terminated with BNC connectors and plugs into the option s...

Page 20: ...ons Handling precautions Always grasp the Model 6517B by the covers After removing the Model 6517B from its anti static bag inspect it for any obvious signs of physical damage report any such damage to the shipping agent immediately When the Model 6517B is not installed and connected keep the unit in its anti static bag and store it in the original packing carton Shipment contents The following it...

Page 21: ...ent and follow these instructions Call the repair department toll free at 1 888 KEITHLEY 1 888 534 8453 within the U S and Canada to obtain a Return Material Authorization RMA number Advise as to the warranty status of the Model 6517B Write ATTENTION REPAIR DEPARTMENT and the RMA number on the shipping label Complete and include the Service Form located at the back of this manual Test Equipment De...

Page 22: ...ary 2 2 Rear panel summary 2 4 Power up 2 6 Line power connection 2 6 Power up procedure 2 6 Display 2 6 Primary display line 2 6 Secondary display line 2 7 Bench defaults 2 7 Restoring bench defaults 2 7 Function default settings 2 7 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 23: ...ce values ERR Questionable reading REM In remote TALK Addressed to talk LSTN Addressed to listen SRQ Service Request REL Relative reading displayed FILT Digital filter enabled MATH Math calculation enabled AUTO Autoranging enabled ARM Trigger armed not in idle asterisk Reading being stored VOLTAGE SOURCE OPERATE 6517B ELECTROMETER HIGH RESISTANCE METER EDIT ERR REM TALK LSTN SRQ REAR REL FILT MATH...

Page 24: ...data entry digits menu selections and information displays INFO Shows context sensitive information about the present display LOCAL Cancels remote operation STORE Enables data storage RECALL Displays reading data reading number time Use PREV NEXT DISPLAY for maximum minimum average standard deviation CONFIG Configures functions and operations MENU Saves restores instrument conditions sets up commu...

Page 25: ...UT triax connector to configure the input for guarded voltage measurements Referenced to COMMON See the Model 6517B Reference Manual for more information 8 9 10 11 12 13 14 15 Input high Input low Chassis ground Unguarded guard off Input high Guard Chassis ground Guarded guard off OPTION SLOT 250VDC MAX MADE IN U S A LINE RATING 50 60 Hz 100 VA MAX LINE WARNING NO INTERNAL OPERATOR SERVICABLE PART...

Page 26: ... If the fuse needs to be replaced refer to the procedure in Section 2 of the Model 6517B Reference Manual 9 IEEE 488 CONNECTOR Connects the Model 6517B to the IEEE 488 GPIB bus Use shielded IEEE 488 cables 10 INTERLOCK Connects the safety interlock to a test fixture using an appropriate cable Interlock is automatically enabled when the appropriate interlock cable is connected to the 6517B Rated at...

Page 27: ...ate ground wire for use with grounded outlets When proper connections are made instrument chassis is connected to power line ground through the ground wire in the power cord Failure to use a grounded outlet may result in personal injury or death due to electric shock Power up procedure 1 Turn on the instrument by pressing the front panel power switch to the on I position 2 During power up the Mode...

Page 28: ...NU by performing the following steps 1 Press the MENU key to display the main menu MAIN MENU SAVESETUP COMMUNICATION CAL TEST LIMITS STATUS MSG GENERAL 2 If the SAVESETUP option is not blinking press the key until it is blinking and then press ENTER to view the setup menu SETUP MENU SAVE RESTORE POWERON RESET 3 Select the RESET option using the cursor keys and and press ENTER to view the reset men...

Page 29: ...ntionally 2 8 Return to Section Topics 6517B 900 01 Rev A Jun 2008 Section 2 Getting Started Model 6517B Electrometer User s Manual Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 30: ...esistance measurements 3 6 Auto V Source 3 6 Amps Rel 3 6 Resistivity measurements 3 7 Charge measurements 3 9 Auto discharge 3 10 Temperature and humidity measurements 3 10 Connections 3 10 Measurement control 3 11 Temperature units 3 11 Display reading options 3 12 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 31: ... 6517B To do this use the RANGE key to select the lowest measurement range 2V and press REL With zero correct enabled the REL indicator is on Note that with zero correct enabled the ZCor message is displayed However if guard is already enabled Grd displayed then ZCor will not be displayed 4 Select a measurement range or use autoranging a To automatically select the most sensitive range enable auto...

Page 32: ... OFF to disable or ON to enable and press ENTER 4 Use the EXIT key to back out of the menu Red HI Black LO 6517B Shield Optional Vs Measured Voltage Red HI LO 6517B Safety Shield Vs Safety Earth Ground Measured Voltage Triax Cable A Unguarded GUARD off Triax Cable Guard Black Green B Guarded GUARD on OPTION SLOT 250VDC MAX MADE IN U S A LINE RATING 50 60 Hz 100 VA MAX LINE WARNING NO INTERNAL OPER...

Page 33: ...he expected current 4 Connect the instrument to the current to be measured as shown in Figure 3 2 CAUTION Do not apply more than 250V peak DC to 60Hz 10 seconds per minute maximum on mA ranges or instrument damage may occur 5 Press Z CHK to disable zero check and take a reading from the display To disable zero correct enable zero check and then press REL Figure 3 2 Current measurements Red HI Blac...

Page 34: ...the output and guard terminals that could cause personal injury or death 3 Select a measurement range or use autoranging a To automatically select the most sensitive range enable autorange The AUTO key enables and disables autorange When enabled the AUTO annunciator is on b For manual ranging use the RANGE and keys to select a measurement range consistent with the expected resistance 4 Connect the...

Page 35: ... remove the DUT from the test fixture 2 Select the Amps I function and disable zero check Make sure REL is disabled Red Black 6517B Shield RX LO connected to shield Triax Cable Note V Source low internally connected to electrometer low Test fixture Measured Resistance OPTION SLOT 250VDC MAX MADE IN U S A LINE RATING 50 60 Hz 100 VA MAX LINE WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY ...

Page 36: ...equires BENCH reset conditions see Restoring bench defaults for more information 1 With zero check enabled ZeroCheck displayed select the ohms function by pressing R 2 Select Auto V Source ohms In this mode the V Source is automatically set to a voltage nominally 40V or 400V that optimizes measurement accuracy see Auto V Source for more information Note that BENCH reset conditions selects Manual V...

Page 37: ...sample will be displayed 3 Use the cursor keys and and the RANGE keys and to specify the thickness in millimeters of the sample and then press ENTER 4 Use the EXIT key to back out of the menu structure 6 Disable zero check by pressing Z CHK 7 Press OPER to source voltage to the DUT and after an appropriate electrification time take a reading from the display Typically an electrification time of 60...

Page 38: ...n in Figure 3 5 CAUTION Do not apply more than 250V peak DC to 60Hz or instrument damage may occur 5 Take a reading from the display The reading can be reset to zero by enabling zero check If you wish to have the reading reset to zero when a specified charge level is reached enable Auto Discharge as explained in the following paragraph Warning Connect of fixture to safety earth ground using safety...

Page 39: ...rom 25 C to 150 C using the Keithley Instruments Model 6517 TP type K thermocouple which is a supplied accessory The Model 6517B can make relative humidity measurements 0 to 100 using the Keithley Instruments Model 6517 RH humidity probe which is available as an option Connections The Model 6517 TP thermocouple and Model 6517 RH humidity probe connect to the rear panel connectors labeled TEMP TYPE...

Page 40: ...ature units All temperature readings by the Model 6517B can be displayed in Celsius C Fahrenheit F or Kelvin K BENCH reset selects Celsius C measurement units Perform the following steps to change units 1 Press MENU to display the main menu 2 Use the cursor keys and to place the cursor blinking menu item on GENERAL and press ENTER to display the menu items of the general menu 3 Place the cursor on...

Page 41: ...mperature and humidity readings can accompany each normal A D measurement and they can be included as data storage elements for each reading stored in the buffer see Multiple displays for more information External temperature and humidity are selected as data store elements from the data store configuration menu see Buffer data store for more information Test Equipment Depot 800 517 8431 99 Washin...

Page 42: ...10 Zero correct 4 10 Triggering 4 10 Idle 4 11 Control sources 4 12 Device action 4 12 Output trigger 4 12 Counters 4 12 Bench default setup 4 12 Speed 4 13 Configuring speed 4 13 Resolution 4 13 Configuring resolution 4 13 Filter 4 13 Filter types 4 14 Filter modes 4 14 Median filter 4 14 Configuring filters 4 15 Buffer data store 4 15 Storing readings 4 15 Test Equipment Depot 800 517 8431 99 Wa...

Page 43: ...rations 4 18 Test sequences 4 19 Configuring test sequences 4 19 Connections 4 20 Running a test 4 21 Internal scanning 4 21 Configure internal scanner 4 21 Perform the scan 4 21 Close open channels 4 22 External scanning 4 22 Trigger connections 4 23 Configure external channels 4 23 Perform the scan 4 23 Topic Page Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipm...

Page 44: ...iple display mode can be cancelled by pressing and holding in either key Table 4 1 Multiple displays by function Function Next display All Time day and date Bar graph Zero centered bar graph Maximum and minimum values Relative and actual values Calculated and actual values Limits bar graph Relative humidity and external temperature Change from calibration temperature Ohms R Source V and measure I ...

Page 45: ...lculation While the top line provides the result of the math calculation the bottom line provides the raw reading 6517B ELECTROMETER HIGH RESISTANCE METER Limits This display provides the result of the limit test The graphical representation of the reading is shown on a zero centered bar graph If the reading is between the specified high and low limits the PASS message is displayed If the reading ...

Page 46: ...ate the Model 6517B perform offset adjustments and check calibration date TEST Perform self tests see Reference Manual LIMITS Configure unit to perform limit tests STATUS MSG Enable disable status message mode GENERAL Control output lines of digital output port check serial number of unit and firmware revision levels control line sync limit control and data stamp configure timestamp set reading di...

Page 47: ...is more information or additional menu items to select from When is displayed use the cursor key The cursor keys have an auto repeat feature Table 4 3 Configuration settings for each measurement function Function Speed Filter Resolution Autorange limits Damping Guard External feedback Amps rel Meas type V Source Auto discharge Volts Amps Ohms Coulombs Resistance or resistivity Auto or manual Table...

Page 48: ...Configuring V Source for more information Figure 4 3 shows the connections for this configuration Table 4 5 Menu summary Action Description CONFIG function MENU or RANGE RANGE ENTER EXIT INFO Press the CONFIG key then a function key for example V to view the top level of a function configuration menu Press the MENU key to view the top level of the main menu the operations that have no correspondin...

Page 49: ...ons Figure 4 3 FVMI connections HI LO V Source Out V Source RL LO HI A Basic Connections B Equivalent Circuit RL INPUT 250V HI L V SOURCE OUT Note V SOURCE LO connected to ammeter input LO via METER CONNECT option of CONFIGURE V SOURCE Menu R V Source R HI HI A LO Ammeter Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 50: ...ource Perform the following steps to configure the V Source 1 Press the CONFIG key and one of the VOLTAGE SOURCE keys to display the following configuration menu RANGE Select the 100V range or 1000V range V LIMIT Control on off and set a voltage limit absolute value RESISTIVE LIMIT Control on off the resistive 1MΩ current limit METER CONNECT Control on off the internal connection between V Source ...

Page 51: ...nts Perform the following steps to zero correct the volts or amps function 1 Select the V or I function 2 Enable Zero Check 3 Select the range that will be used for the measurement or select the lowest range 4 Press REL to zero correct the instrument The REL indicator turns on and the ZCor message is displayed For the volts function the ZCor message will not be displayed if guard was already enabl...

Page 52: ...B is taken out of idle by pressing TRIG or sending INIT or INIT CONT ON over the bus the ARM indicator turns on and operation proceeds in the trigger model Continuous One Shot Output Trigger Device Action Event Detection MODE Idle Arm Layer Scan Layer Measure Layer Yes Yes Yes No No No Arm Count Scan Count Measure Count Idle Measure Event Device Action Output Trigger Arm Event Scan Event Another M...

Page 53: ...l source as shown in Figure 4 4 and performs a device action Device action The primary device action is a measurement However the device action could include a function change and a channel scan if scanner is enabled A channel is scanned closed before a measurement is made When scanning internal channels the previous channel opens and the next channel closes break before make Also included in the ...

Page 54: ...tomatically optimizes the integration time for the present resolution setting see Section 4 of the Reference Manual 3 Use the menu items to configure speed A menu item is selected by placing the cursor blinking menu item on it and pressing ENTER Parameter values are changed using the cursor keys and the RANGE keys and then pressing ENTER see Menus for more information on navigating through the men...

Page 55: ...he stack is filled and the conversions are averaged to yield a reading The stack is then cleared and the process starts over See Section 9 of the Reference Manual for complete information on filter modes Median filter Median filtering uses the middlemost reading from a group of sample readings arranged in ascending order For example assume the following readings 20V 1V 3V They are then arranged in...

Page 56: ...ter values are changed using the cursor keys and and the RANGE and keys and then pressing ENTER Buffer data store The Model 6517B has a buffer that can store from one to 15 706 readings The actual number of readings that can be stored in the buffer depends on how many optional data elements are included for each reading see Section 8 of the Reference Manual The basic data elements include the read...

Page 57: ... size to maximum 4 Press ENTER to start storing readings The asterisk annunciator turns on to indicate a data storage operation 5 To recall stored readings press RECALL Use the RANGE keys and to scroll through the buffer Math The MATH key lets you perform math operations on single readings and display the result The six math calculations that are configured from the CONFIGURE MATH menu structure a...

Page 58: ...ATH to display the following math filter menu options NONE Selects no calculation when the MATH key is pressed POLYNOMIAL Selects the polynomial calculation and enters the constants a2 a1 and a0 PERCENT Selects the percent calculation and enters the target value reference DEV Selects the percent deviation calculation DEVIATION Selects the deviation calculation RATIO Selects the ratio calculation L...

Page 59: ...bled Display RATIO reading Math Enabled Display LOG10 reading Math is disabled by pressing MATH a second time Additional math operations In addition to the math performed on single readings described above the Model 6517B has these math operations Math performed on buffered readings maximum and minimum values average and standard deviation Math performed on single readings as part of a pass fail l...

Page 60: ...2 voltage and delay 2 RESISTIVITY Use to select a resistivity test SURFACE Surface resistivity test Specify pre discharge time bias voltage bias time measure voltage measure time and discharge time VOLUME Volume resistivity time Specify pre discharge time bias voltage bias time measure voltage measure time and discharge time SIR Surface insulation resistance test Use to select the SIR test Specify...

Page 61: ...B Shield A 6517B Ammeter 7078 TRX Cable Note Ammeter LO internally connected to V source LO see V Source HI LO HI LO Shield DUT DUT 6517B V Source OPTION SLOT 250VDC MAX MADE IN U S A LINE RATING 50 60 Hz 100 VA MAX WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE FUSE WITH SAME TYPE AND RATING 1250Vpk PR...

Page 62: ...lowing steps to configure an internal scan 1 Press CONFIG and then CARD to display the scanning options internal or external 2 Place the cursor on INTERNAL and press ENTER to display the menu items for the internal scanner 3 Use the following menu structure to configure the internal scanner To select a menu item place the cursor on it and press ENTER Parameter values are changed using the cursor k...

Page 63: ...an again If you wish to repeat the scan s select SCAN AGAIN Press ENTER to start the scan c Exit To return to the normal measurement mode select EXIT Note that stored readings can still be displayed by pressing the RECALL key Close open channels Perform the following steps to open or close a channel on an internal scanner card 1 Press the CARD key to display the internal scanner options close chan...

Page 64: ...ress ENTER to return to the normal measurement display Perform the scan Perform the following steps to scan external channels Note that menu items are selected by placing the cursor on it and pressing ENTER A parameter value is changed by using the RANGE keys and and pressing ENTER 1 On the Model 6517B press the CARD key If a scanner card is installed in the option slot of the Model 6517B perform ...

Page 65: ... the scan list for the Switch System 8 Use the Switch System to define the scan list 9 On the Model 6517B press ENTER to display CONFIG EXT SCANNER STEP scanner to first channel 10 On the Switch System press STEP to close the first channel in the scan 11 On the Model 6517B press ENTER to display the currently programmed scan count The scan count specifies the number of scans to be performed To cha...

Page 66: ...ignal oriented commands 5 8 SCPI subsystem commands 5 8 Program examples 5 13 Changing function and range 5 13 One shot triggering 5 14 Continuous triggering 1 5 15 Continuous triggering 2 5 15 Generating SRQ on buffer full 5 16 Storing readings in the buffer 5 17 Taking readings with the scanner card 5 18 Test sequence Staircase sweep 5 19 Test Equipment Depot 800 517 8431 99 Washington Street Me...

Page 67: ...lications group for details at 1 888 KEITHLEY 1 888 534 8453 within the U S and Canada Remote interfaces IEEE 488 bus Standards For remote operation the Model 6517B can use the IEEE 488 bus for communication between instrumentation and the controller computer The IEEE 488 bus is also known as the General Purpose Interface Bus GPIB In addition to conforming to the IEEE 488 1978 and IEEE 488 1 1987 ...

Page 68: ...BLE and press ENTER to display the addressable menu items ADDRESS and LANGUAGE b Place the cursor on ADDRESS and press ENTER to display the primary address c To change the address use the cursor keys and and the RANGE keys and to display the desired address then press ENTER Each device on the bus must have a unique address Typically the computer uses address 0 or 21 5 Perform the following steps i...

Page 69: ...ollowing steps if you wish to check and change the baud rate a Place the cursor on BAUD and press ENTER to display the available baud rates Cursor position indicates the present baud rate setting To retain the present baud rate setting press ENTER or EXIT b To change the baud rate place the cursor on the desired setting and press ENTER 5 Perform the following steps if you wish to check and change ...

Page 70: ... by sending this bus trigger For example if instrument operation is waiting at the measure trigger layer control source and it is programmed for BUS events TRG will provide the required event resulting in a device action measurement WAI wait to continue This delay is used to allow the TRG or an initiate command INIT or INIT CONT ON to finish before processing any further commands An INITiate comma...

Page 71: ... many times For example many subsystems contain a STATe command but each one is unique because the complete command is unique This is analogous to having a file named INDEX TXT for example in each directory of your computer s hard disk Although the files have the same name they are unique because they are each in a different directory Long and short form commands Every SCPI command has a short for...

Page 72: ...Ge UPPer 15 VOLTage DC RANGe 15 These are shown in long form but short forms could also be used Command syntax Notice in the preceding examples that there is no colon character at the beginning of the commands A leading colon instructs the Model 6517B to interpret the command starting at the root highest level of the command tree Since the Model 6517B also starts at the root each time you send it ...

Page 73: ...Currently selected function MEASure VOLTage DC Volts function MEASure CURRent DC Amps function MEASure RESistance Ohms function MEASure CHARge Coulombs function SCPI subsystem commands Detailed information on all SCPI commands is covered in Section 14 of the Reference manual In this section only the commands used for basic operation are summarized Defaults SYSTem SYSTem subsystem PREset Set the 65...

Page 74: ...y noise tolerance 0 to 100 STATe b Enable or disable digital filter MEDian Path to control median filter RANK n Specify rank for filter 1 to 5 STATe b Enable or disable median filter GUARd b Enable or disable guard CURRent DC Path to configure Amps Volts commands The same commands as Volts except GUARd apply DAMPing b Enable or disable damping RESistance Path to configure Ohms Volts commands The s...

Page 75: ... 1000 V STATe b Enable or disable limit MCONnect b Enable or disable V Source LO to ammeter LO connection CURRent Path for current limit RLIMit Path to control resistive current limit STATe b Enable or disable resistive I limit LIMit b Path to check current compliance STATe b Query state of current compliance Data store Buffer TRACe TRACe subsystem ELEMents name Select reading elements TSTamp HUMi...

Page 76: ...1 to 99999 999 sec Test sequences TSEQuence TSEQuence subsystem ARM Arms selected test sequence ABORt Stops a test sequence in process TYPE name Specify test DLEakage CLEakage CIResistance RVCoefficient SRESistivity VRESistivity SIResistivity SQSWeep STSWeep TSOurce name Specify trigger source MANual IMMediate BUS TLINk EXTernal LCLosure TLINe NRf Specify TLINK line 1 to 6 DLEakage Diode leakage t...

Page 77: ... level time 0 to 99999 9s LLEVel NRf Specify low level voltage 1000 to 1000 LTIMe NRf Specify low level time 0 to 99999 9s COUNt NRf Specify number cycles STSWeep Staircase sweep test path STARt NRf Specify start voltage 1000 to 1000 STOP NRf Specify stop voltage 1000 to 1000 STEP NRf Specify step voltage 1000 to 1000 STIMe NRf Specify step time 0 to 99999 9s Status register The status register st...

Page 78: ... measure The instrument interprets this parameter and goes to the appropriate range When you query the range with RANGe the instrument sends back the full scale value of its present range The following example program illustrates changing function and range It sets the range for several functions then takes readings on each of those functions Note that the Model 6517B rounds the range parameter to...

Page 79: ...Simply sending a command to a non SCPI instrument to change any of the trigger controls causes the instrument to arm itself for triggers The SCPI trigger model implemented in the Model 6517B gives you Explicit control over the trigger source the TRIGger subsystem A two level control for arming the instrument for triggers A way to completely disable triggers Changing any of the settings in the TRIG...

Page 80: ...ontrols in INIT ARM LAY1 ARM LAY2 and TRIG subsystems and put trigger model in IDLE state CALL SEND 27 rst status RST sets TRIG SOUR to IMM CALL SEND 27 arm lay2 sour ext status CALL SEND 27 trig coun inf status start everything CALL SEND 27 init status After the Model 6517B receives the INITiate command it stops in ARM LAYer2 of the trigger model waiting for a pulse on the external trigger jack A...

Page 81: ...er a status bit becomes true or false The IEEE 488 controller your computer can examine the state of the SRQ line without performing a serial poll thereby detecting when the 6517B has completed its task without interrupting it in the process The following example program segment sets up the Model 6517B to assert SRQ when the reading buffer has completely filled then arms the reading buffer initiat...

Page 82: ...p when pretrigger is satisfied The following example program sets up the Model 6517B to take 20 readings as fast as it can into the buffer then reads the data back after the buffer has filled The readings will be stored with the timestamp and other information but the program reads back only the reading values and timestamp Example program to demonstrate the reading buffer For QuickBASIC 4 5 and K...

Page 83: ...ner channels For QuickBASIC 4 5 and KPC 488 2 CEC interface card Edit the following line to where the QuickBASIC libraries are on your computer INCLUDE c qb45 ieeeqb bi Initialize the interface as address 21 CALL initialize 21 0 Reset controls in INIT ARM LAY1 ARM LAY2 and TRIG subsystems and put trigger model in IDLE state set function to volts CALL SEND 27 rst status Close channel 1 take voltage...

Page 84: ... arm lay2 sour tim tim 15 status CALL SEND 27 arm lay2 coun 10 status TRACe subsystem is not affected by RST CALL SEND 27 trac poin 30 elem none status CALL SEND 27 trac feed sens1 feed coun next status now the buffer is armed CALL SEND 27 rout scan 1 3 status CALL SEND 27 rout lsel init status Start everything CALL SEND 27 init status Initialize reading while the 6517B is busy taking readings rea...

Page 85: ...W status CALL send 27 TSEQ STSW STAR 0 status CALL send 27 TSEQ STSW STOP 10 status CALL send 27 TSEQ STSW STEP 1 status CALL send 27 TSEQ STSW STIM 0 3 status CALL send 27 TSEQ TSO imm status Wait for commands to complete processing DATA1 SPACE 600 CALL send 27 OPC status CALL enter DATA1 length 27 status Start Test Sequence CALL send 27 TSEQ ARM status Wait for SRQ buffer full WaitSRQ IF NOT srq...

Page 86: ... 4 RS 232 2 5 Temp Type K 2 5 Trig Link 2 5 V Source HI and LO 2 5 Continuous triggering 1 5 15 Continuous triggering 2 5 15 Control sources 4 12 Counters 4 12 Current measurements 3 4 D Data store Buffer 5 10 Default nodes 5 7 Defaults 5 8 Bench 2 7 Function settings 2 7 Restoring 2 7 Device action 4 12 Display 2 6 Secondary 2 7 Display reading options 3 12 E External scanning 4 22 F Features 1 2...

Page 87: ...nfiguration 5 4 Connections 5 4 Selection 5 4 Standard 5 3 Running a test 4 21 S Safety symbols and terms 1 5 Scanner cards 1 4 SCPI commands 5 5 Default nodes 5 7 Long and short form 5 6 Queries 5 7 Syntax 5 6 5 7 Tree structure 5 6 SCPI signal oriented commands 5 8 SCPI subsystem commands 5 8 Selecting and configuring a test sequence 4 19 Service form 1 6 Software 1 4 Software support 5 2 Speed ...

Page 88: ... o Overload o Calibration only o Certificate of calibration required o Data required attach any additional sheets as necessary Show a block diagram of your measurement system including all instruments connected whether power is turned on or not Also describe signal source Where is the measurement being performed factory controlled laboratory out of doors etc What power line voltage is used Ambient...

Page 89: ...Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 90: ...12 06 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

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