10
ENGLISH
OPERATING INSTRUCTIONS
INRUSH CURRENT
The Inrush feature captures starting current of a compressor motor.
Starting current can assist in diagnosing a motor before it fails.
To measure inrush current:
1. Rotate the Function Selector switch
2
to
the AC current A setting.
2. Place clamp
3
around wire. The
current measurement will be shown in
the display.
3. Long press the V+A/Inrush button
10
for 2 seconds to enter the Inrush mode and manually select 60A
or 600A range by pressing the RANGE button
7
. Place the clamp
around the compressor start wire and turn motor on. The starting
current will hold on the main display. The Inrush measurement
period is 100-miliseconds.
4. Long press V+A/Inrush button
10
for 2 seconds to exit.
MICROAMPS DC CURRENT
Microamps DC is applied to a flame rectifier diode test on a heater
control.
1. Rotate the Function Selector switch
2
to the µA setting.
2. Connect the leads between flame sensor
probe and control module and turn on
heating unit.
3. The current measurement will be
shown in the main display.
NOTE: When the flame is on, there should be a measureable µA
DC signal, typically under 10 μA DC. Compare measurement to
manufacturer’s specifications.
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