DC Voltage
1. Set DMM POWER switch on (in).
2. Push in the DCV FUNCTION push button. The read
out should display -.0 0 0 i2 counts w ith no signal connect
ed to DMM INPUT
3. Connect the LO test probe to the reference test point
(usually ground or a test point) and the HI test probe to the
unknown positive dc voltage to be measured.
4. The display represents the value o f the dc voltage
source.
5. Reverse the HI and LO test probes and observe the
numeric reading remains the same but the negative polarity
sign is indicated.
6. Disconnect DMM from the dc source.
AC Voltage
1. Set DMM POWER switch on.
2. Push in the A C V FUNCTION push button. The read
o u t should display .000 110 counts w ith no signal connect
to the DMM INPUT and the tw o test probes touching each
other.
3.
Connect the LO test probe to the reference test point
(usually circu it ground or to a test point) and the HI test
probe to the unknown ac voltage to be measured.
4.
The display represents the value o f the ac voltage
source.
5. Disconnect DMM from the ac voltage source.
Resistance
1. Push the kQ FUNCTION push button. The readout
should display a flashing -1 9 9 9 . overrange condition w ith
no signal input connected to the DMM INPUT.
2. Touch the tw o DMM test probes together. The dis
play should read .000 ±3 counts indicating proper operation
o f the k D FUNCTION.
3. Connect the DMM test probes across the unknown
resistance to be measured.
4. The display represents the value o f the unknown
resistance.
5. Set DMM POWER switch o ff (out).
REV A SEP 1979
305 Operators
21