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BASIC MEASUREMENT

Crest Factor Table

Background

Crest factor is the ratio of the peak signal amplitude to the
RMS value of the signal. It determines the accuracy of AC

measurement.
If the crest factor is less than 3.0, voltage measurement will

not result in error due to dynamic range limitations at full
scale.

If the crest factor is more than 3.0, it usually indicates an
abnormal waveform as seen from the below table.

Waveform

Shape

Crest factor

Square wave

1.0

Sine wave

1.414

Triangle
sawtooth

1.732

Mixed
frequencies

1.414 ~ 2.0

SCR output
100% ~ 10%

1.414 ~ 3.0

White noise

3.0 ~ 4.0

AC Coupled
pulse train

>3.0

Spike

>9.0

Содержание GDM-8261A

Страница 1: ...Dual Measurement Multimeter GDM 8261A USER MANUAL GW INSTEK PART NO 82DM 8261AEC1 ISO 9001 CERTIFIED MANUFACTURER...

Страница 2: ...language without prior written consent of Good Will company The information in this manual was correct at the time of printing However Good Will continues to improve products and reserves the right to...

Страница 3: ...ge Measurement 27 AC DC Current Measurement 32 2W 4W Resistance Measurement 34 Diode Test 37 Continuity Test 38 Frequency Period Measurement 41 Temperature Measurement 43 DUAL MEASUREMENT 49 Dual Meas...

Страница 4: ...ent Record 99 Save Instrument Settings 100 Recall Instrument Settings 101 SCANNER OPTIONAL 103 GDM SC1 Scanner Specifications 104 Scanner Installation 104 Setup Scan 113 Run Scan 120 DIGITAL I O 123 D...

Страница 5: ...Table of Contents 5 INDEX 228...

Страница 6: ...may appear in this manual or on the GDM 8261A WARNING Warning Identifies conditions or practices that could result in injury or loss of life CAUTION Caution Identifies conditions or practices that co...

Страница 7: ...nel Make sure that the Sense LO terminal to COM port is limited to 100Vpk the Sense HI to Sense LO terminals are limited to 200Vpk and the COM port to earth is limited to 500Vpk Note EN 61010 1 2010 s...

Страница 8: ...he GDM 8261A falls under degree 2 Pollution refers to addition of foreign matter solid liquid or gaseous ionized gases that may produce a reduction of dielectric strength or surface resistivity Pollut...

Страница 9: ...ected to the terminal which is marked with the letter N or coloured Blue or Black The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or...

Страница 10: ...8261A Please note the information in this manual was correct at the time of printing However as GW Instek continues to improve its products changes can occur at any time without notice Please see the...

Страница 11: ...range 1000V High ACV frequency response 300kHz Features 6 2 1 digits Multi functions ACV DCV ACI DCI 2W 4W R Hz Temp Continuity Diode test MAX MIN REL dBm Hold MX B 1 X REF dB Compare Statistics Manua...

Страница 12: ...ower Switch Main Display DC AC 1A Terminal AMPS Fuse Holder Input LO Terminal COM port Sense HI Terminal Power Switch POWER Turns On or Off the main power For the power up sequence see page 21 Main Di...

Страница 13: ...ept for DC AC Current measurements DC AC 10A Terminal 10A Accepts DC AC Current input For DCI or ACI details see page 32 Measurement Keys upper row SHIFT EXIT EXIT SHIFT The Shift key is used to selec...

Страница 14: ...ngs page 99 or scan measurement results page 121 DCI DCI Measures DC Current page 32 SHIFT DCI STORE EXIT SHIFT DCI STORE Stores a measurement result page 98 2 4W Resistance 2 4W Measures 2 wire or 4...

Страница 15: ...HIFT Hz P dB EXIT SHIFT Hz P dB Measures dB page 59 TEMP Temperature TEMP Measures Temperature page 43 SHIFT TEMP SENSOR EXIT SHIFT TEMP SENSOR Selects the type of thermocouple used in the Temperature...

Страница 16: ...n RANGE Selects the parameter in various occasions higher or lower HOLD HOLD Activates the Hold function page 64 SHIFT HOLD COMPare EXIT SHIFT HOLD COMP Activates the Compare measurement page 65 TRIG...

Страница 17: ...al sampling page 79 2nd Display LOCAL 2ND LOCAL As the 2nd key selects the measurement item on the 2nd display page 49 Pressing and holding for more than 1 second turns off the 2nd display As the Loca...

Страница 18: ...Power Cord Socket Fuse 0 315AT 0 125AT CAL Key Port Optional Communication port USB Device Port Digital I O Port Power Cord Socket 100 220 120 240 Accepts the power cord AC 100 120 220 240V 10 45Hz 6...

Страница 19: ...es such as firmware updates and calibration Digital I O port DIGITAL I O Accepts a digital I O cable for the Hi Lo limit tests DB 9 pin female connector For digital I O details see page 124 Optional s...

Страница 20: ...M 8261A User Manual 20 Set Up Tilt Stand Tilt stand steps Pull out the handle sideways and rotate it Place the unit horizontally Or in the tilt stand position Place the handle vertically for hand carr...

Страница 21: ...0 2 Connect the power cord to the AC Voltage input Note Make sure the ground connector on the power cord is connected to a safety ground This will affect the measurement accuracy 3 Push to turn on the...

Страница 22: ...GDM 8261A User Manual 22 7 Then the default setting appears Example DCV Auto 100mV range V m S DC AUTO...

Страница 23: ...lect Voltage Range 28 Voltage Conversion Table 30 Crest Factor Table 31 Current AC DC Current Measurement 32 Select Current Range 33 Resistance 2W 4W Resistance Measurement 34 Select Resistance Range...

Страница 24: ...GDM 8261A User Manual 24 Temperature Temperature Measurement 43 Select Thermocouple Type 44 Set Reference Junction Temperature T CUP 45 Select Temperature Sensor Type 46 Set User RTD 47...

Страница 25: ...operation using the result obtained from one or more of the basic measurements Refresh Rate Background Refresh rate defines how frequently the GDM 8261A captures and updates measurement data A faster...

Страница 26: ...followed by the AUTO RATE key The refresh rate switches to the next EXIT SHIFT AUTO RATE 2 The refresh rate indicator shows the current status S M F S Reading Indicator Background The reading indicat...

Страница 27: ...rnal EXT for manual triggering See page 76 TRIG AC DC Voltage Measurement Voltage type AC 0 750V DC 0 1000V 1 Activate ACV DCV Press the ACV AC Voltage key or DCV DC Voltage key ACV or DCV 2 ACV DCV m...

Страница 28: ...1mV 1000 000V Note For more detailed parameters see the specifications on page 217 DC Voltage Range Note DC voltages with AC components cannot be accurately measured if the DC AC component exceed the...

Страница 29: ...gnals being measured contain both DC and AC components 3 When the amplitude of the AC component in the measured signal is higher or lower than the dynamic range of the range being currently selected b...

Страница 30: ...eform Peak to Peak AC True RMS DC Sine PK PK 2 828 1 000 0 000 Rectified Sine full wave PK PK 1 414 0 435 0 900 Rectified Sine half wave PK PK 2 000 0 771 0 636 Square PK PK 2 000 1 000 0 000 Rectifie...

Страница 31: ...s than 3 0 voltage measurement will not result in error due to dynamic range limitations at full scale If the crest factor is more than 3 0 it usually indicates an abnormal waveform as seen from the b...

Страница 32: ...ess the ACI AC Current key or the DCI DC Current key ACI or DCI 2 ACI DCI mode display appears A S AC AUTO AC or DC A Indicates AC or DC Current Note AC true RMS AUTO Indicates Automatic range selecti...

Страница 33: ...1 A 119 9999mA 1A 1 A 1 199999A 10A 10 A 10 00000A DC Current Range Note DC currents with AC components cannot be accurately measured if the DC AC component exceed the ADC dynamic range for the select...

Страница 34: ...ist DCI Range ADC Dynamic Range DC 100uA max 2mA DC 1mA max 2mA DC 10A max 40mA DC 100A max 200mA DC 1A max 1 2A DC 10A max 10A 2W 4W Resistance Measurement Measurement type 2 wire Uses the standard V...

Страница 35: ...e COM port plus the 4W sense and LO port for sensing The display updates the reading 2W connection INPUT V W COM 4W connection W 4W INPUT SENSE HI LO V W COM Select Resistance Range Auto range To turn...

Страница 36: ...GDM 8261A User Manual 36 10M 10 11 99999M 100M 100 119 9999M Note For more detailed range see the specifications at page 217...

Страница 37: ...forward bias current approx 1mA through the DUT 1 Activate diode test Press the key once 2 Diode mode display appears V S V Indicates Diode test DIODE 2nd display shows the title 3 Connect the test le...

Страница 38: ...be considered continuous of conductive nature 1 Activate continuity test Press the key twice 2 Continuity mode display appears W S Indicates Continuity test CONT 2nd display shows the title 3 Connect...

Страница 39: ...measurement menu appears EXIT SHIFT 2ND MENU TRIG 2 Press the Down key the Right key the Enter key The continuity threshold setting appears TRIG AUTO ENTER W 2 Edit threshold 1 Move the cursor the fla...

Страница 40: ...p function is turned Off 1 Activate beeper setting menu 1 Press the Shift key followed by the 2nd Menu key The system menu appears EXIT SHIFT 2ND MENU 2 Press the Down key The beep menu appears 3 Pres...

Страница 41: ...d press the Hz P key twice Hz P Hz P 2 Frequency Period mode display appears Hz M S AUTO Hz S Indicates Frequency period measurement AUTO Indicates Automatic range selection FREQ PERIOD 2nd display sh...

Страница 42: ...the 2nd key twice 2ND 2ND Auto range To turn the automatic range selection On Off press the AUTO key AUTO Manual range Press the Up or the Down key to select the range AUTO indicator turns Off automat...

Страница 43: ...easurement For Celsius units press the TEMP key once TEMP For Fahrenheit units press the TEMP key twice TEMP TEMP 2 Temperature mode display appears C S C Indicates Temperature measurement TYPE J 2nd...

Страница 44: ...to 400 C 0 002 C K 200 to 1372 C 0 002 C N 200 to 1300 C 0 003 C R 50 to 1768 C 0 01 C S 50 to 1768 C 0 01 C B 350 to 1820 C 0 01 C 1 Open sensor selection menu Press the Shift key then the TEMP Senso...

Страница 45: ...l should be taken into account and be cancelled otherwise an erroneous temperature might be added Type Range Resolution SIM simulated 0 50 C 0 01 C The terminal temperature is manually defined by the...

Страница 46: ...Type Background The GDM 8261A supports a number of thermocouple types as well as 2 or 4 wire RTD It is important to specify the type of temperature sensor used Parameter RTD type Range Resolution All...

Страница 47: ...nd The USER setting allows any custom RTD sensor coefficients to be used The USER setting can configure the alpha beta and delta coefficients as defined by the Callendar Van Dusen equation Coefficient...

Страница 48: ...ay AUTO ENTER 4 Edit coefficient values Use the Left Right key to move the cursor and use the Up Down key to change the coefficient value Default 0 00385 HOLD TRIG Press the Enter key to confirm the v...

Страница 49: ...nt then a single measurement is taken for both displays such as ACV and frequency period measurements If the primary and secondary displays use different measurement functions ranges or rates then sep...

Страница 50: ...DC Power Supply Output DC output DC Power Supply INPUT V W COM V AC ripple V T DCV DCI Monitor the voltage and current present on a component in a circuit or the output voltage and current of a DC pow...

Страница 51: ...hows the available measurement combinations 1st Display 2 2nd Display 2 ACV DCV ACI DCI Hz P 2W 4W 1 ACV DCV ACI DCI Hz P 2W 4W 1 Note 1 2W 4W measurements in combination with other measurements are p...

Страница 52: ...however it is more practical to configure the first or second measurement items before activating dual measurement mode 1 Select active display Toggle whether the primary or secondary display is the...

Страница 53: ...unction the connection method and number of test leads required depends on the measurement combination Use the connect diagrams below as guide when taking dual measurements Voltage and Frequency Perio...

Страница 54: ...e current leads has been reversed Please take into account the resistance of the test leads and internal resistance of the current connection as it is in series with the test circuit The above measuri...

Страница 55: ...fresh Rate 56 Reading Indicator 57 Common Attribute Manual Automatic Triggering 57 dBm dB dBm dB W Measurement 58 Measure dBm W 58 Measure dB 59 Max Min Max Min Measurement 61 Relative Relative Value...

Страница 56: ...Min Relative Hold Compare Math Refresh Rate Background Refresh rate defines how frequently the GDM 8261A captures and updates measurement data A faster refresh rate yields a lower accuracy and resolut...

Страница 57: ...tor shows the current status S M F S Reading Indicator Background The reading indicator next to the 1st display flashes according to the refresh rate when the captured data is updated on the display V...

Страница 58: ...ased on a reference resistance value in the following way dBm 10 x log10 1000 x Vreading2 Rref dB dBm dBmref W Vreading2 Ref Parameters Vreading Input Voltage ACV or DCV Rref Reference resistance simu...

Страница 59: ...e power press the Shift key followed by the key again EXIT SHIFT dBm Watt result appears W dB S DC m W W Indicates W measurement 16 2nd display indicates the reference resistance Deactivate dBm W meas...

Страница 60: ...measurement 00 617mV Indicates the present Voltage reading dBmref Press the 2nd key to see the dBm ref value 2ND Deactivate dB measurement To cancel the dB measurement press the Shift key followed by...

Страница 61: ...e MX MN MX MN 2 Max Min result is activated MAX S V MAX AUTO AC MIN MAX Indicates Min Max measurement is activated 1V 2nd display shows the Min Max range View Max Min value Press the 2nd key to view t...

Страница 62: ...ative measurement display appears V REL S AC REL Indicates Relative value measurement 2nd display Shows the measurement range 1st display Shows the delta between the current measurement data and the r...

Страница 63: ...t Right key to move the flashing point cursor and use the Up Down key to change the value HOLD TRIG 3 Press the Enter key to confirm the value or the Exit key to cancel The display switches to measure...

Страница 64: ...ate Hold measurement Press the Hold key HOLD 2 Hold measurement display appears V HOLD S AC HOLD Indicates Hold measurement 2nd display Shows the Hold threshold 1st display Shows the measurement data...

Страница 65: ...mpare measurement Press the Shift key then the Hold Comp key EXIT SHIFT HOLD COMP 2 High limit setting V 1st display Shows the high limit value 2nd display Indicates high limit setting 1 Use the Left...

Страница 66: ...he cursor flashing point between high low setting digits and decimal point HOLD TRIG 2 Change the parameter using the Up Down key 3 Press the Enter key to confirm editing The compare measurement start...

Страница 67: ...Limit FAIL Out Pin 8 are activated Pass If the 2nd display shows Pass the result is staying between the High and the Low limit Digital I O PASS Out Pin 5 is activated Digital I O The Compare measurem...

Страница 68: ...X Inverse Divides 1 by the reading X Percentage Runs the following equation ReadingX Reference x 100 Reference Stats Performs standard deviation calculations on measurement data Measure MX B 1 Activat...

Страница 69: ...ndicates MX B The letter B flashes 1 Use the Left Right key to move the cursor flashing point between the offset digits and decimal point HOLD TRIG 2 Change the parameter using the Up Down key 3 Press...

Страница 70: ...R S AC V S AUTO MATH 1st display Shows the 1 X value 2nd display Indicates 1 X MATH Indicates Math operation Measure Percentage 1 Activate Percentage Press the Shift key the 2 4W Math key the Up key t...

Страница 71: ...ndicates the Percentage measurement MATH Indicates Math operation Statistics Calculations Background The Analyze Stats menu allows you to make statistical calculations on a continuous or user defined...

Страница 72: ...uous and to start measurement press Enter when CONTINU is displayed on the 1st display 2 Measurement starts automatically AUTO ENTER 2b User defined count 1 To set a user defined count number press th...

Страница 73: ...statistical data measurements 2ND COUNT Indicates the current measurement count MIN Indicates the minimum data value MAX Indicates the maximum data value AVG Indicates the mean average value STDEV In...

Страница 74: ...s Digital Filter Overview 79 Digital Filter Setting 80 Analog Filter Settings 82 Display Display Light Setting 83 Measurement Configuration Settings D Shift Settings 84 Input Resistance Setting 85 AC...

Страница 75: ...set for all measurement modes except for ACV ACI measurements ACV ACI use the same refresh rate settings Display Range A S AC S 6 digits M 5 digits F 4 digits Refresh rate selection Press the Shift ke...

Страница 76: ...gering default The GDM 8261A triggers according to the refresh rate See the previous page for refresh rate setting details Manual triggering Press the Trig key to trigger measurement manually See belo...

Страница 77: ...ator appears on the display EXT EXIT SHIFT TRIG INT EXT 2 Start trigger Press the Trig key to start triggering manually The indicator turns On V m S AUTO AC TRIG Reading indicator The reading indicato...

Страница 78: ...e 2nd Menu key the Right key the Down key The delay menu appears EXIT SHIFT 2ND MENU TRIG 2 Press the Down key The delay setting appears 3 Move the flashing point cursor using the Left Right key Chang...

Страница 79: ...differences between the Moving and Repeating filter using 4 samples per reading Moving default The Moving filter takes in one new sample and discards the oldest sample per reading This is the default...

Страница 80: ...out of the range between TH and TL the filter will restart When measuring unstable signals appropriately setting the filter window can improve the measurement speed Time AD data TH TL TH TL TH TL Fil...

Страница 81: ...ey to confirm editing AUTO ENTER 5 Select the Window threshold using the Up Down key The display changes accordingly Range None 0 01 0 1 1 10 6 Press the Enter key to confirm editing The Filter indica...

Страница 82: ...itude that is higher than the measurable range of the DC signal The Analog filter setting is off by default The cutoff frequency for the analog filter is at 500Hz 3dB Note The analog filter can only b...

Страница 83: ...he display reading Use light 3 or more brighter when working indoor use light 2 or 1 darker when working outdoor under the sun Level 5 brightest 1 darkest default 3 Panel operation 1 Press the Shift k...

Страница 84: ...the decimal point depending on the measurement If D Shift is turned off the measured readings will be displayed at the full 6 2 1 digits with a fixed decimal place The D Shift setting is on by default...

Страница 85: ...und The 0 1V and 1V DC voltage ranges can be set to an input resistance of 10M or 10G This setting is only applicable for DC Voltage only Input Resistance 10M 10G default 10M Panel operation 1 Press t...

Страница 86: ...AC Bandwidth filter setting for AC measurements The Slow Medium Fast S M F rate settings are directly tied to the AC bandwidth settings Rate Digits Input Frequency Readings s S 6 3 Hz 300 kHz 1 2 sec...

Страница 87: ...etect setting will allow the DMM to detect whether current is applied to the 1A or 10A input ports and enables it to set the correct range when Auto range is on The Current detect feature works by act...

Страница 88: ...nfirm your selection Press the Exit key to go back to the default display AUTO ENTER EXIT SHIFT ADC Setting Auto Zeroing Background The Auto Zeroing A Zero function can be used in resistance TC RTD DC...

Страница 89: ...y at which the offset is obtained depends on the sample rate The diagram below shows how the total offset is obtained Buffer Hi Total offset A D Driver ADC Lo ADC offset A D Driver offset Buffer offse...

Страница 90: ...setting performs auto gain correction of the internal amplifiers Setting Off On default On Applicable Measurement Mode Rate and Speed settings Mode Rate Accuracy Speed Quick Speed DCV DCI 4W 2W Resist...

Страница 91: ...to go back to the default display AUTO ENTER EXIT SHIFT 5 A Zero and A Gain have an identical time interval of 5 seconds As can be seen in the diagram below Auto Gain correction is performed once afte...

Страница 92: ...ating mode and the rate settings Readings s Function Rate Digits Accurate Quick DCV DCI 2 4W 100 100M S 6 5 30 M 5 60 600 F 4 240 2400 All speeds need A Zero off A Gain off fixed range and Trigger Del...

Страница 93: ...ion Background The INJACK settings set which input port is used for frequency or period measurements Setting VOLT 1A 10A Panel operation 1 Press the Shift key followed by the 2nd Menu key Press the ri...

Страница 94: ...GDM 8261A User Manual 94 4 Press the Enter key to confirm your selection Press the Exit key to go back to the default display AUTO ENTER EXIT SHIFT...

Страница 95: ...e Readings s Gate time Frequency Period 6 Slow 1 1000ms 5 Med 10 100ms 4 Fast 100 10ms Panel operation 1 Press the Shift key followed by the 2nd Menu key Press the right key three times The Hz P menu...

Страница 96: ...e see the SYSTem IDNStr command on page 202 for details Setting NORM COMP Panel operation 1 Press the Shift key followed by the 2nd Menu key The System menu appears EXIT SHIFT 2ND MENU 2 Press the Dow...

Страница 97: ...story for up to 9999 counts as well as the instrument settings For storing and recalling measurement results using the Scanner see page 103 DCI STORE ACI RECALL Store Measurement Record 98 Recall Meas...

Страница 98: ...l be erased every time the store function is used or if power is reset Data count 2 9999 Not applicable to Store recall measurement history is not applicable to the Diode Continuity tests Store step 1...

Страница 99: ...e Diode Continuity tests Recall stored record Press the Shift key then the ACI Recall key The stored measurement record appears EXIT SHIFT ACI RECALL V RCL 1st display Shows the stored measurement res...

Страница 100: ...ep settings I O settings System Delay Time Backlight Light settings Math settings Auto Zero settings Auto Gain settings Scanner settings Settings for each function Continuity threshold TCO settings D...

Страница 101: ...ble the settings at power up follow the instructions in the next section Recall Instrument Settings Background The Recall function enables saved settings or default settings to be recalled at the next...

Страница 102: ...e memory number 4 Select the memory number using the Up Down key 5 Press the Enter key to confirm your selection Press the Exit key to go back to Recall menu AUTO ENTER EXIT SHIFT 6 Select the Now or...

Страница 103: ...Installation GDM SC1 Scanner Specifications 104 Configure Scanner 104 Select Channel Group and Enable Scanner 106 Connect Wires 107 Insert Scanner 110 Scanner Configuration Record 112 Setup Overview...

Страница 104: ...rms ch17 ch18 4 wire channel 8 pairs Resistance 2 4 wire Single wire channel N A Cold junction N A internal Maximum voltage 250Vrms Connection Screw terminal Scanner Installation Configure Scanner Ope...

Страница 105: ...and Lo Scan Step connection Refer to the below table for measurement and test line connections Item No of wires No of channels DCV ACV 2 wires H L 16 CH1 16 DCI ACI 2 wires H L 2 CH17 18 10A range onl...

Страница 106: ...nd 16 channels are available for the scanner when using the GDM 8261A Group1 CH101 118 Select group Jumper J8 Set the jumper J8 in the center of the board to the MASTER configuration Move the jumper t...

Страница 107: ...s 2 1 to enable the scanner 3 2 1 J9 3 2 1 3 2 1 Enabled Disabled J9 Connect Wires Wire selection Make sure the wires have at least the same voltage and current capacity as the maximum ratings of the...

Страница 108: ...wires so that the cold junction points are external to the scanner card Connecting thermocouple wiring directly to the scanner box is not recommended due to the radiant heat from the internal compone...

Страница 109: ...ANNER OPTIONAL 109 4 Close the top cover and tighten the screw from the bottom Configuration Record Print out the configuration record list on page 112 fill in the details and keep it with the GDM 826...

Страница 110: ...110 Insert Scanner Power Off Turn the Power Off and take out the power cord Open the GDM 8261A rear panel slot Take off the two screws on the slot corners to remove the optional slot cover Keep the s...

Страница 111: ...r by tightening the screws Power On Connect the power cord and turn On the power CAUTION Do not input voltages exceeding 250Vrms to the front input terminals while the scanner module is installed WARN...

Страница 112: ...ion Record Channel Wire color Measurement type Note CH1 H L CH2 H L CH3 H L CH4 H L CH5 H L CH6 H L CH7 H L CH8 H L CH9 H L CH10 H L CH11 H L CH12 H L CH13 H L CH14 H L CH15 H L CH16 H L CH17 H L CH18...

Страница 113: ...r of scan operations Trigger setting Internal Continuous The GDM 8261A keeps triggering continuously until the scan reaches the end of the loop count Then it goes into the idle mode External Manual Th...

Страница 114: ...page 115 apply for each channel 1 Count CH 101 Delay Timer 2 CH 102 Delay Timer 3 Delay Timer 4 CH 104 Delay Timer 5 CH 101 Delay Timer 6 CH 102 Step CH 103 12 Timer Timer Delay Example Step through...

Страница 115: ...nter key The End Maximum channel setting appears AUTO ENTER 6 Move the cursor to the channel using the Left Right key and change the value using the Up Down key HOLD TRIG Range 101 118 must be equal t...

Страница 116: ...9 11 Press the Enter key followed by the Exit key The setting is stored and the display goes back to the normal mode AUTO ENTER EXIT SHIFT Setup Advanced Scan Panel operation 1 Press the Shift key the...

Страница 117: ...rsor to the channel using the Left Right key and change the value using the Up Down key HOLD TRIG Range 101 118 must be greater than or equal to the Start Min channel 7 When finished press the Enter k...

Страница 118: ...ng is CH101 V m S AUTO DC 13 Set the measurement conditions To select measurement item press the target key ACV TEMP To select Auto range press the AUTO key AUTO RATE To manually select the range pres...

Страница 119: ...ut Digital chassis Ground Pin4 External Trigger Input pin Activate external trigger Press the Shift key followed by the Trig key The EXT indicator appears on the display EXIT SHIFT TRIG INT EXT Start...

Страница 120: ...ep 1 Press the Shift key followed by the ACV key Scan or DCV key Step EXIT SHIFT ACV SCAN EXIT SHIFT DCV STEP 2 The STO indicator turns On The Scan Step starts running and the data is recorded After r...

Страница 121: ...C RCL 3 To view the Standard Deviation Min Max Average data press the Left and Right keys HOLD TRIG 4 To move to the next channel press the Up Down key 5 Press the Exit key to get out from recall mode...

Страница 122: ...key The channel selection appears 4 Move the cursor to the channel using the Left Right key and change the channel number using the Up Down keys HOLD TRIG 5 When finished press the Enter key The Moni...

Страница 123: ...el Digital I O terminal outputs the result of Compare measurements to external devices HOLD COMP Terminal configuration Digital I O Terminal Configuration 124 Application Application Compare measureme...

Страница 124: ...Limit FAIL Out Digital chassis Ground Pin1 VCC output 5V Serves as the unregulated max power source for the external device logic Without GPIB LAN card 4 5V 50mA With GPIB LAN card 4 0V 50mA Pin2 NC N...

Страница 125: ...measurement is over It is also available in other measurements EOM pulse width timing 10 s R 1k 0V 5V Application Compare measurement Applicable to ACV DCV ACI DCI 2 4W Hz P TEMP Background Compare me...

Страница 126: ...the same way as in the high limit Press the Enter key to confirm editing The compare measurement starts right away AUTO ENTER 4 Compare measurement appears V S AC COMP COMP Indicates Compare mode 2nd...

Страница 127: ...n 5 is activated Timing Diagram for pins 5 8 when the Compare function is activated Low limit High limit P P P F F H L Pin 5 PASS Out Pin 6 FAIL Out Pin 7 HIGH Limit FAIL Out Pin 8 LOW Limit FAIL Out...

Страница 128: ...ernal trigger signal to the Digital I O port located on the rear panel 6 FAIL Out 7 8 9 1 2 3 4 5 High Limit FAIL Out VCC Out NC PASS Out External Trigger In EOM Out LOW Limit FAIL Out Digital chassis...

Страница 129: ...IG Reading indicator The reading indicator stays On before triggering After triggering the indicator flashes according to the external signal trigger timing Exit external trigger Press the Shift key f...

Страница 130: ...terface 142 Configure Ethernet Interface RESET 144 Configure Ethernet Interface to DHCP 145 Configure Ethernet IP 146 View MAC Address 152 Configure Telnet Port 153 Return to Initial Settings 154 View...

Страница 131: ...REMOTE CONTROL 131 TRIGger Commands 197 SYSTem Related Commands 200 STATus Report Commands 203 RS 232C Interface Commands 203 IEEE 488 2 Common Commands 203 ROUTe Commands 205...

Страница 132: ...4 Pin female GPIB port LAN optional 10BaseT 100BaseTx Return to Local control mode In order to switch back to the Local control mode front panel operation press the LOCAL key 2ND LOCAL Configure USB I...

Страница 133: ...y AUTO ENTER EXIT SHIFT 6 Connect the USB cable to the rear panel terminal upper port CALKEY Configure RS 232C Interface Configuration step 1 Press the Shift key the 2nd Menu key and then the left key...

Страница 134: ...Pin 5 GND Pin 1 4 6 9 No Connection 5 4 3 2 1 9 8 7 6 PC GDM RS 232C Connection A null modem connection in which transmit TxD and receive RxD lines are cross linked is required GDM PC TxD RxD GND Pin...

Страница 135: ...Press the Up Down key to select the EOL character 5 Press the Enter key followed by the Exit key The EOL setting is stored and the display goes back to the default display AUTO ENTER EXIT SHIFT Set t...

Страница 136: ...e separation character CR LF LF CR 5 Press the Enter key followed by the Exit key The SEP setting is stored and the display goes back to the default display AUTO ENTER EXIT SHIFT Set the Return Format...

Страница 137: ...the left key repeatedly until the TX TERM configuration menu appears EXIT SHIFT 2ND MENU HOLD 2 Press the Down key the Left key The FORMAT menu appears HOLD 3 Press the Down key The FORMAT selection...

Страница 138: ...the power cord Open the GDM 8261A optional communication port Take off the two screws on the slot corners to remove the optional communication port cover Keep the screws for later reuse Insert the GP...

Страница 139: ...then the left key repeatedly until the I O configuration menu appears EXIT SHIFT 2ND MENU HOLD 2 Press the Down key and the Left key repeatedly until the GPIB selection display appears Note The GPIB...

Страница 140: ...ault 15 7 Press the Enter key followed by the Exit key The GPIB setting is stored and the display goes back to the default display AUTO ENTER EXIT SHIFT 8 Connect the GPIB cable to the rear panel opti...

Страница 141: ...12 SHIELD Ground 24 Single GND Insert Ethernet Card Power Off Turn the Power Off and take out the power cord Open the GDM 8261A optional communication port Take off the two screws on the slot corners...

Страница 142: ...On Connect the power cord and turn on the power Initialize Execute the INIT function to initialize the LAN settings see page 154 for details Activate Ethernet Interface Ethernet LAN port activation 1...

Страница 143: ...the Up Down key to select ON or OFF ON will turn the LAN option on OFF will turn the LAN option off Note Ethernet configuration settings can only be edited when LAN is set to ON 5 Press the Enter key...

Страница 144: ...d to the new configuration settings New Ethernet configuration settings are only updated after the Ethernet card has been reset Ethernet port configuration 1 Press the Shift key the 2nd Menu key the L...

Страница 145: ...urns off indicates that the Ethernet card has finished resetting flashing stays on indicates that the Ethernet card has finished resetting when the continuity function is active see page 38 Configure...

Страница 146: ...NTER EXIT SHIFT 2 Reset LAN card 1 To make any changes take effect set RESET to YES See page 144 for details Configure Ethernet IP Background The GDM 8261A supports manually setting of the IP addresse...

Страница 147: ...wn key The IP address selection appears IP1 IP4 IP2 IP3 The IP address is divided in 4 groups IP1 IP2 IP3 IP4 The cursor will be flashing on IP1 indicated by X 4 Use the Left Right keys to move the cu...

Страница 148: ...menu appears Note SET LAN will only be available after LAN has been activated in the I O menu see page 142 EXIT SHIFT 2ND MENU HOLD 2 Press the Down key and the Right key repeatedly until the SUBNET s...

Страница 149: ...automatically go onto S2 AUTO ENTER 7 Repeat steps 4 to 6 for S2 S3 and S4 8 Press the Exit key to exit from the configuration menu EXIT SHIFT 3 Gateway Configuration 1 Press the Shift key the 2nd Men...

Страница 150: ...ATEWAY address selection appears G1 G4 G2 G3 The gateway address is divided in 4 groups G1 G2 G3 G4 The cursor will be flashing on G1 indicated by X 4 Use the Left Right keys to move the cursor to the...

Страница 151: ...n activated in the I O menu see page 142 EXIT SHIFT 2ND MENU HOLD 2 Press the Down key and the Right key repeatedly until the DNS selection display appears Note The DNS address can only be edited if D...

Страница 152: ...SHIFT 5 Reset LAN card 1 To make any changes take effect set RESET to YES See page 144 for details View MAC Address View MAC Address 1 Press the Shift key the 2nd Menu key and the Left key repeatedly...

Страница 153: ...ivate networks By default the telnet port is set to port 23 1 Telnet Port Configuration 1 Press the Shift key the 2nd Menu key and the Left key repeatedly until the SET LAN configuration menu appears...

Страница 154: ...NTER EXIT SHIFT Return to Initial Settings Background The INIT function is used to return the GDM 8261A back to the original LAN settings This will also reset the web password back to 123456 if the pa...

Страница 155: ...T 2ND MENU HOLD 2 Press the Down key and then the Right key repeatedly until the INIT selection display appears TRIG 3 Press the Down key The INIT NO YES selection appears 4 Press the Up Down key to s...

Страница 156: ...hat the Ethernet card has finished resetting when the continuity function is active see page 38 View Web Password Settings Background The web password is set to 123456 by default Only the on off setti...

Страница 157: ...tings and exit from the configuration menu AUTO ENTER EXIT SHIFT Note The web password is set to 123456 by default Setting INIT to YES will reset the password back to the default password if the passw...

Страница 158: ...y via the terminal application idn The command will return the instrument manufacturer model number serial number and firmware version in the following format GWInstek GDM8261A 00000000 1 0 4 See page...

Страница 159: ...s such as HyperTerminal or Telnet can be used to monitor measurement readings control settings and run programs utilizing the same remote control command set used with the RS232 remote control Backgro...

Страница 160: ...enable JavaScript go to Tools Internet Options Security Custom Level Scripting Active scripting Enable 2 Web Control 1 To start web control click on the Web Control icon 2 The virtual control panel a...

Страница 161: ...odified from the web control interface Settings that cannot be edited using the GDM 8261A front panel such as the web password can be edited from the web control interface 1 To edit or view the curren...

Страница 162: ...mware revision of the Ethernet card IP address and MAC address Set the IP address to DHCP or static Configure the module host name UPnP port number telnet port number and telnet timeout time Modify th...

Страница 163: ...or NR3 value MIN MAX The GDM 8261A automatically translates to the Minimum min or Maximum max value available DEF Default setting value Automatic parameter range selection The GDM 8261A automatically...

Страница 164: ...gure CURRent DC 172 CONFigure CURRent AC 172 CONFigure RESistance 172 CONFigure FRESistance 173 CONFigure FREQuency 173 CONFigure PERiod 173 CONFigure CONTinuity 173 CONFigure DIODe 173 CONFigure TEMP...

Страница 165: ...e2 VOLTage DC 179 MEASure2 VOLTage AC 179 MEASure2 CURRent DC 179 MEASure2 CURRent AC 179 MEASure2 RESistance 180 MEASure2 FRESistance 180 MEASure2 FREQuency 180 MEASure2 PERiod 180 SENSe TEMPerature...

Страница 166: ...w 183 SENSe AVERage WINDow 183 SENSe AVERage STATe 183 SENSe AVERage STATe 183 SENSe FILTer STATe 184 SENSe FILTer STATe 184 SENSe FREQuency APERture 184 SENSe FREQuency APERture 184 SENSe PERiod APER...

Страница 167: ...NGe 188 SENSe FREQuency VOLTage RANGe 188 SENSe PERiod VOLTage RANGe 188 SENSe PERiod VOLTage RANGe 188 SENSe VOLTage DC RANGe AUTO 188 SENSe VOLTage DC RANGe AUTO 188 SENSe VOLTage AC RANGe AUTO 188...

Страница 168: ...SENSe TEMPerature TCOuple RESolution 192 SENSe TEMPerature TCOuple RESolution 192 SENSe TEMPerature FRTD RESolution 192 SENSe TEMPerature FRTD RESolution 192 SENSe TEMPerature RTD RESolution 192 SENSe...

Страница 169: ...t 196 CALCulate AVERage MINimum 196 CALCulate AVERage MAXimum 196 CALCulate AVERage AVERage 196 CALCulate AVERage PTPeak 196 CALCulate AVERage SDEViation 196 CALCulate MATH MMFactor 197 CALCulate MATH...

Страница 170: ...t 201 SYSTem OUTPut EOF 201 SYSTem OUTPut EOF 201 SYSTem OUTPut SEParate 201 SYSTem OUTPut SEParate 201 SYSTem SERial 201 SYSTem PARameter SAVE 201 SYSTem PARameter LOAD 201 SYSTem PARameter LOAD 201...

Страница 171: ...e 205 ROUTe FUNCtion 205 ROUTe FUNCtion 205 ROUTe CHANnel 206 ROUTe CHANnel 206 ROUTe COUNt 206 ROUTe COUNt 206 ROUTe DELay 206 ROUTe DELay 206 ROUTe STATe 206 ROUTe ADVance 207 ROUTe ADVance 207 ROUT...

Страница 172: ...DC Sets measurement to DC Current on the first display and specifies range resolution Parameter None Range NRf MIN MAX DEF Resolution NRf MIN MAX DEF Example CONF CURR DC 10e 3 DEF Sets the DC curren...

Страница 173: ...ifies the range resolution Parameter None Range NRf MIN MAX DEF Resolution NRf MIN MAX DEF Example CONF PER Sets the DMM to period measurement using the previous range resolution CONFigure CONTinuity...

Страница 174: ...V 1000 1000V ACV 0 1 100mV 1 1V 10 10V 100 100V 750 750V ACI 0 001 1mA 0 01 10mA 0 1 100mA 1 1A 10 10A DCI 0 0001 100 A 0 001 1mA 0 01 10mA 0 1 100mA 1 1A 10 10A RES 10E 1 100 10E 2 1k 10E 3 10k 10E 4...

Страница 175: ...t to AC Current on the second display and specifies range resolution Parameter None Range NRf MIN MAX DEF Resolution NRf MIN MAX DEF Example CONF2 CURR AC 10e 2 MAX Sets the measurement mode to ACI wi...

Страница 176: ...the second display function off Parameter None CONFigure2 FUNCtion Returns the current function on the second display Return parameter VOLT VOLT AC CURR CURR AC RES FRES FREQ PER NON CONFigure2 RANGe...

Страница 177: ...measurement as 0 511 mV MEASure CURRent DC Returns the DC current measurement on the first display Parameter None Range NRf MIN MAX DEF Resolution NRf MIN MAX DEF Example MEAS CURR DC 0 234E 4 Return...

Страница 178: ...Hz MEASure PERiod Returns the period measurement on the first display Parameter None Range NRf MIN MAX DEF Resolution NRf MIN MAX DEF Example MEAS PER MAX Returns the period at the maximum range MEASu...

Страница 179: ...MAX DEF Resolution NRf MIN MAX DEF Example MEAS2 VOLT DC 0 488E 4 Returns the DC voltage measurement as 0 0488 mV MEASure2 VOLTage AC Returns the AC voltage measurement on the second display Paramete...

Страница 180: ...REQuency Returns the frequency measurement on the second display Parameter None Range NRf MIN MAX DEF Resolution NRf MIN MAX DEF Example MEAS2 FREQ 0 215029E 5 Returns the frequency 21 5 kHz MEASure2...

Страница 181: ...ets the 2W RTD sensor to PT100 SENSe TEMPerature RTD TYPE Returns the 2W RTD sensor type Return parameter PT100 D100 F100 PT385 PT3916 USER SENSe TEMPerature RTD ALPHa Sets the 2W RTD Alpha coefficien...

Страница 182: ...Se TEMPerature FRTD ALPHa Returns the 4W RTD Alpha coefficient SENSe TEMPerature FRTD BETA Sets the 4W RTD BETA coefficient Parameter NRf 0 10 Example SENS TEMP FRTD BETA 0 00495 SENSe TEMPerature FRT...

Страница 183: ...filter count number to 100 SENSe AVERage COUNt Returns the digital filter count Return parameter NR1 002 100 SENSe AVERage WINDow Selects a digital filter window Parameters 0 01 0 1 1 10 NONE Example...

Страница 184: ...ture Sets the aperture time gate time for the period function 0 01 F 0 1 M 1 S Parameter NRf 0 01 0 1 1 Example SENS PER APER 0 1 Sets the gate time to 0 1 seconds for the period function SENSe PERiod...

Страница 185: ...TO Returns the Auto zero mode Return Parameter 0 1 1 ON 0 OFF SENSe GAIN AUTO Sets the Auto gain mode to on off or once only Parameter ON OFF ONCE Example SENS GAIN AUTO OFF Turns the Auto gain mode o...

Страница 186: ...Se FUNCtion 1 2 Returns the function displayed on the first or second display Return parameter display 1 VOLT VOLT AC CURR CURR AC RES FRES FREQ PER TEMP RTD TEMP FRTD TEMP TCO DIOD CONT display 2 VOL...

Страница 187: ...X Example SENS CURR DC RANG 10 e 2 Sets the DC current range to 100mA SENSe CURRent DC RANGe Returns the DC Current measurement range Parameter None MIN MAX SENSe CURRent AC RANGe Sets the AC Current...

Страница 188: ...range Parameter None MIN MAX SENSe PERiod VOLTage RANGe Sets the period measurement range Parameter Range NRf MIN MAX Example SENS PER VOLT RANG MIN Sets the period to the minimum range SENSe PERiod...

Страница 189: ...O OFF Turns Auto range off for AC current measurements SENSe CURRent AC RANGe AUTO Returns the AC current Auto range settings Return parameter 0 1 0 OFF 1 ON SENSe RESistance RANGe AUTO Sets the 2W re...

Страница 190: ...olution Sets the DC Voltage measurement resolution The resolution depends on the rate and range settings Parameter Resolution NRf MIN MAX Example SENS VOLT DC RES MAX Sets the DC Voltage resolution to...

Страница 191: ...ENS RES RES 0 01 Sets the 2W Resistance resolution to 0 01 SENSe RESistance RESolution Returns the 2W Resistance resolution Parameter None MIN MAX SENSe FRESistance RESolution Sets the 4W Resistance m...

Страница 192: ...ximum SENSe TEMPerature TCOuple RESolution Returns the thermocouple measurement resolution Parameter None MIN MAX SENSe TEMPerature FRTD RESolution Sets the 4W RTD measurement resolution The resolutio...

Страница 193: ...tomatically set the PLC to the closest acceptable PLC value 0 025 0 1 0 25 1 2 12 Parameter NPLCycles NRf MIN MAX Example SENS CURR DC NPLC 2 Sets the integration time to 2 PLCs for DC Current SENSe C...

Страница 194: ...eter 0 025 0 1 0 25 1 2 12 CALCulate Commands CALCulate FUNCtion Sets the Advanced function Parameter OFF MIN MAX HOLD REL COMP DB DBM STORE AVER MXB INV REF Example CALC FUNC REL Sets the Advanced fu...

Страница 195: ...pare function CALCulate LIMit UPPer Sets the upper limit of the compare function Para meter NRf MIN MAX Example CALC LIM UPP 1 0 Sets the upper limit to 1 0 CALCulate LIMit UPPer Returns the upper lim...

Страница 196: ...g commands for this query are CALCulate STORe COUNt ROUTe COUNt and CALCulate AVERage COUNt Parameter None NR1 0 2 0 Store 1 Scan 2 Stats Example CALC AVER COUN 0 0010 Returns the total number of coun...

Страница 197: ...Sets the reference value for the Percent function Para meter NRf MIN MAX Example CALC MATH PERC MAX Sets the reference value for the Percent function to the maximum CALCulate MATH PERCent Returns the...

Страница 198: ...t FORMat command page 200 Example SAMP COUN 100 VAL2 0 345E 4 V DC 0 391E 4 V DC etc for 100 counts Queries 100 counts of stored samples from the 2nd display TRIGger SOURce Selects the trigger source...

Страница 199: ...les to 10 SAMPle COUNt Returns the number of samples Parameter None MIN MAX TRIGger COUNt Sets the number of trigger counts Parameter NR1 1 9999 MIN MAX Example TRIG COUN 10 Sets the number of trigger...

Страница 200: ...CPI error occurs SYSTem BEEPer ERRor Returns the beeper error mode Return parameter 0 1 0 OFF 1 ON SYSTem ERRor Returns the current system error if any SYSTem VERSion Returns system version Return Par...

Страница 201: ...d separation character as the EOL character SYSTem OUTPut SEParate Returns the command separation character Return parameter Boolean 0 1 0 EOL 1 SYSTem SERial Returns the serial number eight character...

Страница 202: ...the Normal or Compatible identification string See the SYSTem IDNStr command for details Return parameter NORMAL COMPATIBLE SYSTem IDNStr Sets a user defined identification string for the IDN query wh...

Страница 203: ...ocal control front panel control and disables remote control SYSTem REMote Enables remote control and disables local control front panel control SYSTem RWLock Enables remote control and disables local...

Страница 204: ...t0 in SERS Standard Event Status Register when all pending operations are completed PSC Returns power On clear status Return parameter Boolean 0 1 0 don t clear 1 clear PSC Clears power On status Para...

Страница 205: ...1 101 118 Example ROUT MULT OPEN 105 110 Channels 105 to 110 are enabled ROUTe MULTiple STATe Returns the status of all the scanner channels that are open Return parameter 101 OFF 102 ON 103 ON etc RO...

Страница 206: ...settings of each channel See the ROUTe CHANnel command for return parameters Return parameter Channel Function Range Auto Range Example ROUT CHAN 101 101 VOLT 0 1 ON Returns channel 101 function is VO...

Страница 207: ...mpletion of the scan ROUTe SCAN FINal Returns the status of the ROUTe SCAN FINal command Return parameter Boolean 0 1 0 OFF 1 ON ROUTe SCAN BOX Sets type of scanner box voltage current Parameter Volt...

Страница 208: ...o the output buffer DATA POINts Returns the number of readings Parameter None NR1 0 2 0 Store 1 Scan 2 Stats For the following command sets please refer to the status system diagram on page 217 STAT Q...

Страница 209: ...specifications How can I achieve the fastest measurement speed To achieve the fastest measurement speed the DMM must use the internal trigger and must also be used in remote control mode using the USB...

Страница 210: ...User Manual 210 2 SYST DISP OFF 3 SYST OUTP FORM 0 4 TRIG DEL 0 5 SENS AVER STAT OFF 6 SAMP COUN 2400 7 VAL1 If there is still a problem please contact your local dealer or GWInstek at marketing goodw...

Страница 211: ...Replace Input Current Fuse 214 Menu Tree Menu Tree 215 Status system Status system 217 Specifications General 218 DC Characteristics 3 219 AC Characteristics 1 221 Frequency and Period Characteristics...

Страница 212: ...firmware version number View firmware version 1 Press the Shift key followed by the 2nd Menu key The system menu appears EXIT SHIFT 2ND MENU 2 Press the Down key followed by the Right key The firmware...

Страница 213: ...ket using a minus driver 1 0 0 2 2 0 1 2 0 240 2 Replace the fuse in the holder 220 1 0 0 120 240 3 Ensure the correct line voltage is lined up with the arrow on the fuse holder Insert the fuse socket...

Страница 214: ...GDM 8261A User Manual 214 Replace Input Current Fuse Step 1 Press the Fuse holder 2 The fuse holder comes out Replace the fuse inserted at the end of the holder Rating T1 25A 250V...

Страница 215: ...by pressing the Shift key and 2ND Menu key The menu tree is arranged as a three level tree structure Menu Tree Navigation HOLD TRIG Navigate between menus Switch between level 1 and level 2 Edit Level...

Страница 216: ...A 1A 10ms 100ms 1000ms 115200 57600 38400 19200 9600 230400 ON OFF 0 30 LEVEL 1 SYSTEM LEVEL 2 LEVEL 2 LEVEL 2 LEVEL 2 LEVEL 2 DELAY A ZERO INJACK RS232 BEEP SHIFT EXIT TX TERM SCAN SEP FORMAT ADVAN M...

Страница 217: ...217 Status system The diagram below is a description of the status system For the following command sets please refer to the diagram above STAT QUES EVEN STAT QUES ENAB STAT QUES ENAB ESR ESE ESE STB...

Страница 218: ...o 100Vpk the Sense HI to Sense LO terminals are limited to 200Vpk and the COM port to earth is limited to 500Vpk CAT II 600V MAX DC1000V AC 750V Power Supply 100 V 120 V 220 V 240 V 10 Power Line Freq...

Страница 219: ...0000 M 350nA 0 015 0 001 0 020 0 001 0 040 0 001 0 0030 0 0004 100 0000 M 350 nA 10 M 0 300 0 010 0 800 0 010 0 800 0 010 0 1500 0 0002 Accuracy Specifications of reading of range DC Current 1 Range 4...

Страница 220: ...0uA 1mA 5 for 10mA and 100 mA 0 1 for 1A 0 01 for 10A Input Protection Externally accessible 1 25A 250 V fuse Internal 12A 600 V fuse Reading Rate Readings sec 8 Continuity Diode Rate Digits Rate Slow...

Страница 221: ...0 005 0 004 20kHz 50kHz 0 10 0 05 0 11 0 05 0 12 0 05 0 011 0 005 50kHz 100kHz 0 55 0 08 0 60 0 08 0 60 0 08 0 060 0 008 100kHz 300kHz 6 4 00 0 50 4 00 0 50 4 00 0 50 0 20 0 02 1 000000 V to 750 000 V...

Страница 222: ...Hz 0 3 0 04 0 3 0 04 0 3 0 04 0 035 0 006 10Hz 5kHz 0 1 0 04 0 1 0 04 0 1 0 04 0 015 0 006 5kHz 10kHz 0 35 0 7 0 35 0 7 0 35 0 7 0 03 0 006 10 00000 A 3Hz 5Hz 1 1 0 06 1 1 0 06 1 10 0 06 0 1 0 006 5Hz...

Страница 223: ...fuse Operating Characteristics 8 Function Rate Digits Readings s 10 AC Bandwidth ACV ACI Slow 6 1 2 sec reading 3 Hz 300 kHz Medium 5 3 38 20 Hz 300 kHz Fast 4 30 200 Hz 300 kHz 1 Specifications are...

Страница 224: ...rms Auto or manual ranging Settling Considerations Errors will occur when attempting to measure the frequency or period of an input following a dc offset voltage change The input blocking RC time cons...

Страница 225: ...C 0 12 C 0 007 C C 300 C 600 C 0 001 C 0 22 C 0 009 C C Thermocouples 1 Accuracy based on ITS 90 Type Range Resolution 90 Day 1 Year 23 C 5 C Temperature Coefficient 0 18 C 28 55 C E 200 to 1000 C 0 0...

Страница 226: ...261A User Manual 226 Dimensions 220 88 220 264 4 350 3 107 88 309 1 8 4 16 325 1 76 8 15 7 57 10 7 201 9 5 10 19 70 19 19 All dimensions are shown in millimeters M4 X 0 7 4 Places The cave depth 2 5mm...

Страница 227: ...magnetic Compatibility and Low Voltage Directive the following standards were applied EMC EN 61326 1 EN 61326 2 1 Electrical equipment for measurement control and laboratory use EMC requirements 2006...

Страница 228: ...6 separation character 136 overview 163 Compare value setting 65 Continuity setting 38 Crest factor 31 Current scanner configuration 105 setting 32 Current auto detect input port setting 87 D dB setti...

Страница 229: ...voltage safety instruction 7 M Main features 11 Math 1 X 70 MX B 68 Percentage 70 setting 68 Standard deviation 71 Statisics 71 Measurement keys overview 13 Menu tree 215 Monitor channel 121 P Period...

Страница 230: ...aracteristics 224 measuring characteristics 224 Operating characteristics 224 General 218 Temperature characteristics 225 Status system 217 Store measurements 98 T Table of contents 3 Temperature RTD...

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