Tektronix DMM870

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DMM800 Series Performance Verification

Handheld Instruments Basic Service

DMM830 test record (cont.)

Test input Display maximumReadingDisplay minimumTolerance

Low voltage



test

��

�

3.600 k



��

�

1% + 1 count

��

�

3.563 k



��

�

��

�

3.637 k



��

36.00 k



��

1% + 1 count

��

35.63 k



��

36.37 k



��

360.0 k



��

1% + 1 count

��

356.3 k



��

363.7 k



��

3.600 M



��

1% + 1 count

��

3.563 M



��

3.637 M



4000 count mode only.

Use DMM manual ranging or set calibrator to 3.0 k



before selecting 3.6k



Continuity test

��

�

0.0



��

�

–

��

�

Beeper sounds

��

�

��

�

��

�

150



��

�

–

��

�

Beeper does not

sound

��

�

��

�

Multimeter leads shorted – Beeper sounds

Diode test

��

0.5 V

��

–

��

0.400 V

��

0.600 V

Capacitance test

1,2

��

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



��

1% + 10 counts

��

3.554



��

3.646



��

36.00



��

3% + 10 counts

��

34.82



��

37.18



��

360.00



��

3% + 10 counts

��

348.2



��

371.8



��

3.600 mF

��

3% + 10 counts

��

3.482 mF

��

3.718 mF

��

36.00 mF

��

3% + 10 counts

��

34.82 mF

��

37.18 mF

Variations in test equipment can cause erroneous readings. Use a fixed value capacitance standard if instability occurs.

Set the DMM to Delta mode. Delta mode removes stray capacitance for low capacitance measurements.

Set the DMM noise suppression to 60 Hz with the SETUP mode. See Page 15 for detailed instructions.

Tektronix DMM870

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