Making Measurements

3

Using Conductance for High Resistance Tests

 

189 LOGGING MULTIMETER

 

 

 

 

 

 

nS

AutoHOLD

FAST MN MX

LOGGING

YES

 

HOLD

MIN MAX

REL

 

 

 

CANCEL

 

SAVE

 

 

 

Hz % ms

 

 

 

SETUP

nS

 

 

 

 

 

 

 

 

Press twice to

ac+dc mV

 

 

F

 

C

select nS.

ac+dc V

 

 

 

A

 

 

 

mA

dB mV

 

 

 

A

 

dB V

 

 

 

A

 

 

 

 

mA

 

 

 

 

 

ac+dc

 

OFF

 

 

 

A

 

 

 

 

 

ac+dc

 

 

 

 

VIEW

 

 

 

 

CLEAR MEM

 

 

 

 

 

TEMPERATURE

 

A

mA

 

COM

V

 

A

 

 

 

 

 

 

 

10A MAX

400mA

CAT

 

FUSED

 

 

 

FUSED

1000V

 

 

 

 

 

 

ach023f.eps

The following are some tips for measuring conductance:

High-resistance readings are susceptible to electrical

noise. Use averaging to smooth out most noisy readings; press M until AVG appears in the display.

There is normally a residual conductance reading with

the test leads open. To ensure accurate readings, press D with the test leads open to subtract the residual value.

Figure 3-7. Conductance Measurement

3-11

Page 46
Image 46
Fluke 187 user manual Conductance Measurement