7
Measuring DC Voltage
1. Power on the AMM-1 by pressing the ON button
2. Unit will power up, display internal battery condition,
and then land on the DC Voltage Screen.
3. Connect the probes to the banana jack inputs on the
AMM-1
4. Connect the probes across the DC Voltage source
Measuring DC Voltage Drop (Min/Max
Mode)
Example, on a cable:
1. Power on the AMM-1 by pressing the ON button
2. Unit will power up, display internal battery condition,
and then land on the DC Voltage Screen.
3. Press the MODE button once to get to the DC
MIN/MAX screen.
4. Connect the probes to the banana jack inputs on the
AMM-1
5. Connect the other end of the probes to cable of
interest. One probe at one end, the other probe at
the other. Once probes are connected press the
RESET button.
6. Activate equipment that draws current through the
cable of interest, the DC voltage drop will be
captured and displayed.
Note:
The mode is also useful for measuring the voltage
drop on a battery during startup, voltage sag during
amplifier drawing high peak currents (with beat of music)
alternator's voltage regulator response and many other
uses.
