CDM250 User Manual
7
Reference
This section of the manual explains how to take the following
measurements:
H
AC or DC voltage
H
AC or DC current
H
Resistance
It also explains how use the CDM250 Digital Multimeter to check
diodes.
Preparations for Measurement
1. Be sure that the CDM250 Digital Multimeter is connected to a
specified power source and that the LINE VOLTAGE SELEC-
TORs are set to the proper position. Refer to Preparing the
Digital Multimeter for Use on page 2.
2. Check that the FUNCTION and RANGE buttons are in the
correct position. If the value to be measured is unknown, start at
the highest range.
3. Be sure the red test lead is in the proper input jack for the
measurement to be made.
Measuring AC or DC Voltage
1. Connect the black test lead to the black COM jack.
2. Connect the red test lead to the red V-
jack.
3. For DC voltage, set the AC/DC function button to the out
position. For AC voltage set the AC/DC function switch to the in
position.
4. Push the VOLTS function button in to lock it.
