1652C/1653B/1654B
Calibration Manual
12
Earth Resistance Test (R
E
)
Models 1653B and 1654B Only. This product is intended to be used to measure installations in process plants, industrial
installations, and residential applications.
Range Resolution Accuracy
200 Ω 0.1 Ω ±(2 % + 5 digits)
2000 Ω 1 Ω ±(3.5 % + 10 digits)
Range: R
E
+ R
PROBE
[1]
Test Current
2200 Ω
3.5 mA
16000 Ω 500 µA
52000 Ω 150 µA
Note
[1] Without external voltages
Frequency Output Voltage
128 Hz 25 V
Live Circuit Detection
Inhibits test if terminal voltage >10 V ac is
detected prior to start of test.
Phase Sequence Indication
Icon
icon Phase Sequence indicator is active.
Display of Phase Sequence Displays “1-2-3” in digital display field for
correct sequence. Displays “3-2-1” for
incorrect phase. Dashes in place of a number
indicate a valid determination could not be
made.
Mains Input Voltage Range (phase-to-
phase)
100 to 500 V
Mains Wiring Test
Icons (, , ) indicate if L-PE or L-N terminals are reversed. Instrument operation is inhibited and an error
code is generated if the input voltage is not between 100 V and 500 V. The UK Loop and RCD tests are inhibited if the
L-PE or the L-N terminals are reversed.
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