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Handheld Instruments Basic Service

1

DMM800 Series Digital Multimeters

The Tektronix DMM800 Series digital multimeters provide many features.

Table 1 lists the features of each meter for easy comparison.

Figure 1: DMM870 Digital Multimeter

Table 1: DMM800 series digital multimeter features 

Feature

DMM830

DMM850

DMM870

40,000 display count

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Bargraph

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Centering and zooming

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True RMS or average AC measurements

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Autorange

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Measurements

DC/AC voltage

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AC + DC voltage

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DC/AC current

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Содержание DMM830

Страница 1: ...eatures Table 1 lists the features of each meter for easy comparison Figure 1 DMM870 Digital Multimeter Table 1 DMM800 series digital multimeter features Feature DMM830 DMM850 DMM870 40 000 display count Bargraph Centering and zooming True RMS or average AC measurements Autorange Measurements DC AC voltage AC DC voltage DC AC current ...

Страница 2: ...MM870 DMM850 DMM830 Resistance Frequency Diodes and capacitors Continuity Duty factor Temperature Decibel AC volts and amps with Hz display Measurementhold Peak hold Minimum maximum and average values M M A time stamp Delta mode HI LO limits Memory store and recall Backlight Automatic fuse verification Improper input connection warning ...

Страница 3: ...times sec 4 000 count Bargraph 20 times sec Polarity display Automatic Overrange display OL is displayed Low voltage indicator Battery indicator Automatic power off time User selectable default 15 minutes Power source One standard 9 V battery ANSI NEDA 1604A IEC 6F22 Maximum input voltage 1000 V 750 V AC CAT II between V and COM Maximum floating voltage 1000 V 750 V AC CAT II between any terminal ...

Страница 4: ... 20 kHz2 3 5 Bandwidth DMM830 DMM850 DMM870 1 kHz 10 kHz 20 kHz Crest factor 3 Inputimpedance 10 M paralleled by 100 pF AC DC volts Same as AC RMS 1 2 10 counts3 dBm dB dBm reference 1 mV into 600 dB reference 1 V Current AC and DC ranges 4 000 A 400 mA 10 A 20 A maximum for 30 seconds DC accuracy 10 counts 1 DMM830 DMM850 DMM870 0 5 0 4 0 3 AC accuracy 80 counts 1 1 2 0 9 0 9 Bandwidth typical 1 ...

Страница 5: ...nt 4 nF to 4 F 1 delta mode 40 F to 40 mF 3 Frequency4 Ranges 400 Hz 4 kHz 40 kHz 400 kHz 2 MHz Accuracy6 10 count 400 Hz to 400 kHz 0 01 2 MHz 0 15 Sensitivity 0 5 Vp p Duty factor Accuracy 0 1 0 05 per kHz for 5 V input Range 15 Hz to 10 kHz 10 to 90 duty factor Temperature Range 50 to 980 C Accuracy 2 C Thermocouple type K Peak measurements3 Accuracy DC volts 5 40 counts of the peak value of a ...

Страница 6: ...axes 10 minutes each Nonoperating 3 48 gRMS 5 to 500 Hz 3 axes 10 minutes each Table 6 Certifications and compliance Characteristic Description EC Declaration of Conformity Meets the intent of Directive 89 336 EEC for Electromagnetic Compatibility and Low Voltage Directive 73 23 ECC for Product Safety Compliance was demonstrated to the following specifications as listed in the official J ournal of...

Страница 7: ...c Description Overvoltage category CAT III Distribution level mains fixed installation CAT II Local level mains appliances portable equipment CAT I Signal level special equipment or parts of equipment telecommunication electronics Pollution Degree 2 Do not operate in environments where conductive pollutants may be present ...

Страница 8: ...DMM800 Series Specifications 8 Handheld Instruments Basic Service ...

Страница 9: ...re for one hour The multimeter warms up for five minutes For AC measurements allow the multimeter to settle to its final value before taking the measurement The multimeter remains fully assembled and in the holster The DMM800 Series performance verification consists of the checks listed in Table 7 Table 7 Performance verification checks AC Volts Check DC Volts Check DC Millivolts Check AC DC Volts...

Страница 10: ...ginning the performance verification procedures warm up the test equipment according to the manufacturer s recommendations Table 8 Test equipment Description Minimum requirements Example product Universal Calibration System Resolution accuracy 4 times greater than the multimeter display reading Wavetek 9100 with 9105 lead set AC and DC volts measurement1 AC and DC current measurement Resistance me...

Страница 11: ... warm up period and throughout the entire verification procedure Set the auto power off time to a large value or disable the auto power off by pushing the Blue button when turning the dial from the OFF position 3 Warm up the multimeter for five minutes 4 Set the Digits to the 40 000 counts display 5 Pages 19 through 33 contain test records for the DMM800 series multime ters Each model has its own ...

Страница 12: ...ibrator from the multimeter Perform the following steps to verify the DC volts measurement accuracy 1 Set the multimeter dial to V 2 Connect the calibrator outputs to the multimeter C V and COM input connectors 3 Set the calibrator to each of the values in the DC volts test record and verify that the multimeter reads within the specified Display minimum and maximum limits 4 Turn the calibrator out...

Страница 13: ... measurement accuracy 1 Set the multimeter dial to Hz 2 Connect the calibrator outputs to the multimeter C V and COM input connectors 3 Set the calibrator to each of the values in the Frequency test record and verify that the multimeter reads within the specified Display minimum and maximum limits 4 Turn the calibrator output off 5 Disconnect the calibrator from the multimeter Perform the followin...

Страница 14: ...ce measurement accuracy in LV mode 1 Set the multimeter dial to 2 Push the BLUE button to select the LV mode 3 Connect the calibrator outputs to the multimeter C V and COM input connectors 4 Set the calibrator to each of the values in the Low voltage test record and verify that the multimeter reads within the specified Display minimum and maximum limits 5 Turn the calibrator output off 6 Disconnec...

Страница 15: ...aximum limits 5 Turn the calibrator output off 6 Disconnect the calibrator from the multimeter Perform the following steps to verify the capacitance measurement accuracy 1 Set the multimeter dial to 2 Set the noise suppression to 60 Hz a Press the DMM SETUP key repeatedly until the upper display reads 5060 b Set the main display to 60 Hz with the and keys 3 Null the residual DMM and lead capacitan...

Страница 16: ...steps to verify the temperature measurement accuracy 1 Set the multimeter dial to C F 2 Connect the ATK01 thermocouple adapter to the multimeter C V and COM input connectors 3 Connect the Standard thermocouple K type of the calibrator to the ATK01 thermocouple adapter 4 Allow five minutes for the connector temperature to stabilize 5 Set the calibrator to each of the values in the Temperature test ...

Страница 17: ...connect the calibrator from the multimeter Perform the following steps to verify the AC milliampere measurement accuracy 1 Set the multimeter dial to A or mA as needed 2 Push the BLUE button to select AC mode 3 Connect the calibrator outputs to the multimeter A mA and COM input connectors 4 Set the calibrator to each of the values in the AC milliampere test record and verify that the multimeter re...

Страница 18: ...t accuracy 1 Set the multimeter dial to A 2 Push the BLUE button to select AC mode 3 Connect the calibrator outputs to the multimeter A and COM input connectors 4 Set the calibrator to each of the values in the AC ampere test record and verify that the multimeter reads within the specified Display minimum and maximum limits 5 Turn the calibrator output off 6 Disconnect the calibrator from the mult...

Страница 19: ...8 5 V 761 5 V 1 Verify proper DMM range 5 display digits use manual range if necessary The 750 V range displays 4 digits 2 The upper display readout is 2 counts corresponding to the input frequency 3 750 V range not specified above 100 Hz DC volts test 0 0000 V 0 2 10 counts 0 0010 V 0 0010 V 3 6000 V 0 2 10 counts 3 5918 V 3 6082 V 3 6000 V 0 2 10 counts 3 6082 V 3 5918 V 36 000 V 0 2 10 counts 3...

Страница 20: ...0 011 kHz 100 00 kHz1 1 Vp p 0 01 10 counts 99 89 kHz 100 11 kHz 1 0000 MHz1 2 1 Vp p 0 15 10 counts 0 9975 MHz 1 0025 MHz 1 Select Frequency mode if using the Wavetek 9100 set the amplitude to 1 V Select the square wave AC mode if using the Fluke 5500A set the amplitude to 1 000 V 2 Select the sine wave AC mode if using the Fluke 5500A set the amplitude to 0 354 V test 0 00 1 0 5 10 counts 0 10 0...

Страница 21: ...ted Beeper sounds Diode test 0 5 V 0 400 V 0 600 V Capacitance test1 2 3 600 nF 1 10 counts 3 554 nF 3 646 nF 36 00 nF 1 10 counts 35 54 nF 36 46 nF 360 0 nF 1 10 counts 355 4 nF 364 6 nF 3 600 F 1 10 counts 3 554 F 3 646 F 36 00 F 3 10 counts 34 82 F 37 18 F 360 00 F3 3 10 counts 348 2 F 371 8 F 3 600 mF3 3 10 counts 3 482 mF 3 718 mF 36 00 mF3 3 10 counts 34 82 mF 37 18 mF 1 Variations in test e...

Страница 22: ...0 5 10 counts 357 2 A 362 8 A 360 0 A 0 5 10 counts 362 8 A 357 2 A 3600 0 A 0 5 10 counts 3581 0 A 3619 0 A 36 00 mA 0 5 10 counts 35 72 mA 36 28 mA 360 00 mA 0 5 10 counts 358 10 mA 361 90 mA AC milliampere test 60 Hz 3600 0 A 1 2 80 counts 3548 8 A 3651 2 A 360 00 mA 1 2 80 counts 354 88 mA 365 12 mA DC ampere test 10 000 A 0 5 10 counts 9 940 A 10 060 A AC ampere test 60 Hz 10 000 A 1 2 80 cou...

Страница 23: ...V 500 Hz 2 0 40 counts 352 40 V 367 60 V 10 kHz 3 5 40 counts 347 00 V 373 00 V 750 0 V3 60 Hz 0 8 40 counts 740 0 V 760 0 V 1 Verify the proper DMM range 5 display digits use the manual range if necessary The 750 V range displays 4 digits 2 The upper display readout is 2 counts corresponding to the input frequency 3 750 V range not specified above 100 Hz DC volts test 0 0000 V 0 1 10 counts 0 001...

Страница 24: ...quency test 20 00 Hz1 1 Vp p 0 01 10 counts 19 90 Hz 20 10 Hz 100 00 Hz1 1 Vp p 0 01 10 counts 99 89 Hz 100 11 Hz 1 0000 kHz1 1 Vp p 0 01 10 counts 9989 kHz 1 0011 kHz 10 000 kHz1 1 Vp p 0 01 10 counts 9 989 kHz 10 011 kHz 100 00 kHz1 1 Vp p 0 01 10 counts 99 89 kHz 100 11 kHz 1 0000 MHz1 2 1 Vp p 0 15 10 counts 0 9975 MHz 1 0025 MHz 1 Select Frequency mode if using the Wavetek 9100 set the amplit...

Страница 25: ... M 0 8 10 counts 3 5702 M 3 6298 M 20 00 M 2 5 10 counts 18 90 M 21 10 M 1 To test these values with the Fluke 5500A apply 0 0 and set the DMM to Delta mode 2 4 000 count mode only Low voltage test1 3 600 k 0 8 1 count 3 570 k 3 630 k 36 00 k 0 8 1 count 35 70 k 36 30 k 360 0 k 0 8 1 count 357 0 k 363 0 k 3 600 M 0 8 1 count 3 570 M 3 630 M 1 4000 count mode only 2 Use DMM manual ranging or set ca...

Страница 26: ... 37 18 mF 1 Variations in test equipment can cause erroneous readings Use a fixed value capacitance standard if instability occurs 2 Set the DMM to Delta mode Delta mode removes stray capacitance for low capacitance measurements 3 Set the DMM noise suppression to 60 Hz with the SETUP mode See Page 15 for detailed instructions Temperature test 0 0 C 2 C 2 0 2 0 40 0 C 2 C 42 0 38 0 100 0 C 2 C 98 0...

Страница 27: ...est 60 Hz 1 3600 0 A 0 9 80 counts 3559 6 A 3640 4 A 360 00 mA 0 9 80 counts 355 96 mA 364 04 mA 1 The upper display readout is 60 Hz 2 counts corresponding to the input frequency DC ampere test 10 000 A 0 4 10 counts 9 950 A 10 050 A AC ampere test 60 Hz 1 10 000 A 0 9 80 counts 9 830 A 10 170 A 1 The upper display readout is 60 Hz 2 counts corresponding to the input frequency ...

Страница 28: ...DMM800 Series Performance Verification 28 Handheld Instruments Basic Service ...

Страница 29: ...00 Hz 1 5 40 counts 354 20 V 365 80 V 10 kHz 2 5 40 counts 350 60 V 369 40 V 750 0 V3 60 Hz 0 7 40 counts 740 7 V 759 3V 1 Verify the proper DMM range 5 display digits use the manual range if necessary The 750 V range displays 4 digits 2 The upper display readout is 2 counts corresponding to the input frequency 3 750 V range not specified above 100 Hz DC volts test 0 0000 V 0 06 10 counts 0 0010 V...

Страница 30: ...requency test 20 00 Hz1 1 Vp p 0 01 10 counts 19 90 Hz 20 10 Hz 100 00 Hz1 1 Vp p 0 01 10 counts 99 89 Hz 100 11 Hz 1 0000 kHz1 1 Vp p 0 01 10 counts 9989 kHz 1 0011 kHz 10 000 kHz1 1 Vp p 0 01 10 counts 9 989 kHz 10 011 kHz 100 00 kHz1 1 Vp p 0 01 10 counts 99 89 kHz 100 11 kHz 1 0000 MHz1 2 1 Vp p 0 15 10 counts 0 9975 MHz 1 0025 MHz 1 Select Frequency mode if using the Wavetek 9100 set the ampl...

Страница 31: ...3 5774 M 3 6226 M 20 00 M 2 5 10 counts 18 90 M 21 10 M 1 To test these values with the Fluke 5500A apply 0 0 and set the DMM to Delta mode 2 Verify the DMM is in the 4 000 count mode for this test Low voltage test1 3 600 k 0 6 1 count 3 577 k 3 623 k 36 00 k 0 6 1 count 35 77 k 36 23 k 360 0 k 0 6 1 count 357 7 k 362 3 k 3 600 M 0 6 1 count 3 577 M 3 623 M 1 4000 count mode only 2 Use DMM manual ...

Страница 32: ...dings Use a fixed value capacitance standard if instability occurs 2 Set the DMM to Delta mode Delta mode removes stray capacitance for low capacitance measurements 3 Set the DMM noise suppression to 60 Hz with the SETUP mode See Page 15 for detailed instructions Temperature test 0 0 C 2 C 2 0 2 0 40 0 C 2 C 42 0 38 0 100 0 C 2 C 98 0 102 0 950 0 C 2 C 948 0 952 0 Volts peak hold test 1 VRMS 60 Hz...

Страница 33: ...est 60 Hz 1 3600 0 A 0 9 80 counts 3559 6 A 3640 4 A 360 00 mA 0 9 80 counts 355 96 mA 364 04 mA 1 The upper display readout is 60 Hz 2 counts corresponding to the input frequency DC ampere test 10 000 A 0 3 10 counts 9 960 A 10 040 A AC ampere test 60 Hz 1 10 000 A 0 9 80 counts 9 830 A 10 170 A 1 The upper display readout is 60 Hz 2 counts corresponding to the input frequency ...

Страница 34: ...DMM800 Series Performance Verification 34 Handheld Instruments Basic Service ...

Страница 35: ...make the adjustments Instructions on how to prepare the instrument for adjustment Step by step adjustment procedures The procedures in this section do not verify performance To confirm that your multimeter meets factory specifications perform the procedures in the DMM800 Series Performance Verification section List of Adjustments Use the adjustments listed in Table 9 to return DMM800 Series multim...

Страница 36: ...r less Warm up the multimeter for at least 15 minutes Do not alter any setting without reading the entire adjustment procedure first Do not alter a setting unless a performance characteristic cannot be met at the current setting Read the Safety Summary at the beginning of this manual You must open the multimeter case to access the internal adjustments Use the following procedure to open the case 1...

Страница 37: ...DMM800 Series Adjustment Procedures Handheld Instruments Basic Service 37 Case top Case bottom Twist Remove screws 3 Figure 2 Opening the meter case ...

Страница 38: ...t the outputs of the calibrator to the C V and COM input connectors of the multimeter 3 Set the calibrator to output 3 0000 VDC 4 Adjust VR5 until the display shows 2 9999 to 3 0001 VDC 5 Turn the calibrator output off 6 Disconnect the calibrator from the multimeter Perform the following steps to adjust the AC voltage calibration at 60 Hz 1 Set the multimeter dial to V 2 Connect the outputs of the...

Страница 39: ... Connect the multimeter C V lead to the remaining calibrator output Turn the calibrator output on b Using Wavetek 9100 with 9105 front porch Turn the calibrator output off Connect the multimeter test leads to the calibrator outputs Connect the calibrator common lead to the multimeter COM input Press the multimeter gold key followed by the key Connect the remaining calibrator output lead to the mul...

Страница 40: ...adjust the DC milliamperes calibration 1 Set the multimeter dial to mA 2 Connect the outputs of the calibrator to the A mA and COM input connec tors of the multimeter 3 Set calibrator to output 100 0 mA 4 Press and hold the gold button for five seconds The multimeter beeps twice when the gold button is first pressed and then two more beeps follow after five seconds 5 Press the SETUP button and wai...

Страница 41: ... procedure you must lift out the entire circuit board assembly from the top case half to access the adjustments Perform this proce dure only if the Performance Verification procedure indicates that the AC voltage accuracy checks above 60 Hz is out of specification VC 3 VC 2 VC 1 Figure 4 Adjustment locations 2 Perform the following steps to adjust the AC voltage calibration above 60 Hz 1 Set the m...

Страница 42: ...tep 11 if necessary 14 Set the calibrator to output 2 VAC at 10 kHz sinewave 15 Adjust VC2 until the display shows 1 9700 V 16 Set the calibrator frequency to 500 Hz sinewave 17 Confirm that the reading is less than 2 011 V Repeat step 15 if necessary 18 Turn the calibrator output off 19 Disconnect the calibrator from the multimeter Reassembling the Multimeter 1 Ensure that the rotary dial is prop...

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