Getting Started
CDM250 User Manual
5
6. FUNCTION buttons. Push in only one button to select VOLTS
(voltage), A (current), or
(resistance). Only one function will
work at a time.
7. AC/DC button. Push in to measure alternating current or AC
voltage; reset to the out position for direct current or DC voltage.
The AC/DC button may be in either position when the meter is
used for checking resistance.
8. COM jack. Input connector for common (black) test lead. Used
for AC or DC volts, ohms, and current functions. This connector
is not connected to the power source ground through the
instrument.
9. 2 A jack. Input connector for positive (red) test lead when
instrument is used to measure current values up to 2 A.