1621
Users Manual
8
Table 3. Display
No. Description
A RH, RS and RE icons indicate the resistance type being displayed:
RH = Auxiliary electrode resistance
R
S = Probe resistance
R
E = Earth ground electrode resistance
B ACTIVE icon indicates a measurement is in progress
C Digits display measurement results and messages
D ke icon indicates reading value is in kilohms (x1000)
E >LIMIT icon indicates measurement value exceeds the set limit or
that auxiliary electrode resistance or probe resistance value
exceeds 199 ke
F W icon flashes if measurement value exceeds set limit or leakage
voltage exceeds 20 V
G LO-BAT icon indicates battery voltage is low
H U icon indicates the displayed measurement is stray interference
voltage (above 20 V)
Interference Detection
The Tester automatically checks for interference voltage (noise) fault voltage
above 20 V. Interference above 20 V greatly diminishes the accuracy of
measurements. If the Tester detects interference voltage above 20 V, the
measurement automatically stops, the W icon flashes, the U icon displays, and
the value of the stray voltage displays.
Auto Shut-Off
The Tester has an auto shut-off feature that turns the device off after 10
minutes of inactivity. The Tester beeps to alert you that it is about to turn off.
To disable auto shut-off, simultaneously press and hold START and
DISPLAY while setting the rotary switch to any On position (3 pole, 2 pole
or LIMIT). To reset auto shut-off or to reset the Tester, turn off the Tester and
then turn it on again.
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