Amprobe AMB-50 Insulation-Resistance-Tester - Manual (Page 10)

4
OPERATION
Key Functions
ON/OFF
Turn on or off the Meter. Press and hold the button for 1 second to turn the Meter on. Press
again to turn off the Meter.
The Meter default range is 500V insulation resistance continuous measurement when turning
on.
E-STOP
Emergency stop button. Press this button when the Meter is hang and cannot turn off the
power.
CLEAR /
Press to turn on or off the display backlight
Press and hold to clear the stored data
SAVE
Press to store the current measurement value. The maximum number of stored reading is 18.
When the stored readings memory is full, the Meter shows FULL and stop storing. Press and
hold CLEAR / to clear the stored value in order to store the next measurement
value.
LOAD
• Press once to recall the first stored value.
• Press again to exit Load feature.
• Load feature can only be used when there is no high voltage output.
• When the insulation resistance measurement has no testing voltage output, press to select
one voltage range up.
• Under load mode: press to recall the previous stored value.
• When the insulation resistance measurement has no testing voltage output, press to select
one voltage range down.
• Under load mode: press to recall the next stored value.
• When set the timer duration for the measurement of insulation resistance or polarization
index, press to decrement the time. The maximum length of time is 15 minutes and 30
seconds, the Meter will automatically carry out measurement.
• When compare feature measuring insulation resistance, press to decrement a resistance
comparing value.
• After polarization index measurement, press to display polarization index, TIME 2 insulation
resistance value and TIME 1 insulation resistance value in sequence.
• When set the timer duration for the measurement of insulation resistance or polarization
index, press to increment the time. The maximum length of time is 30 minutes and 30
seconds, the Meter will automatically carry out measurement.
• When use the compare feature measuring insulation resistance, press to increment a
resistance comparing value.
• After polarization index measurement, press to display polarization index, TIME 2 insulation
resistance value and TIME 1 insulation resistance value in sequence.
USB
• Press once to start the data transferring to the computer via USB, USB symbol shows on the
display.
• Press again to stop the data transferring to the computer via USB, USB symbol disappears.
COMP Set a pass / fail limit for insulation tests. The default value is 10M
TIME
Pres to step through continuous measurement, timed measurement and polarization index
measurement in sequence.
TEST Press to stop or start an insulation resistance test
IR Press to initiate insulation resistance measurement
DCV Press to initiate DC voltage measurement
ACV Pres to initiate AC voltage measurement