64
Measurement Function/Performance
Zero adjustment
allowable range
3
Ω
or less
*1 Automatically select the minimum display range that can meet both R
E
and R
H
values.
*2 Three-pole method only.
*3 Applied after zero adjustment, ±0.3
Ω
is added before zero adjustment
(with use of L9481).
*4 It shall be the range in which the operation uncertainty within ±30% is
guaranteed; applied to three-pole method.
*5 Applied in the range excluding 18 to 28°C.
*6 Function to check whether or not the peak of earth potential is within the
allowable range; no AC coupling; display the peak value (peak on + side).
Earth potential measurement
DC/AC
auto-detection
range
0.3 V DC ± 0.2 V or higher is detected as DC
Manual switching function provided
Pulsating ow with superimposed AC component that
periodically zero-crosses is detected as AC
Measurement
system
Average value rectication effective value indication
Terminal
for voltage
measurement
Three-pole method: Between S terminal (+) ― E terminal (-)
Two-pole method: Between H terminal (+) ― E terminal (-)
Overload
protection
360 V AC for 1 min
360 V DC for 1 min
Display refresh
interval
Within 1 second
Input resistance 4 M
Ω
or higher (DC / 50 Hz / 60 Hz)
Response time
Within 2 seconds (when input voltage is changed from 0 V
to 30 V)