63
Measurement Function/Performance
Allowable earth
potential
10 V rms (DC or sine wave)
Effect of the
resistance
of auxiliary
earthing
electrode (
E
5
)
Either R
H
or R
S
electrode
Variable value
10 k
Ω
or less
Accuracy × 1.0
Above 10 k
Ω
to 50 k
Ω
Accuracy × 2.0
Effect of system
frequency (
E
7
)
Not applicable
Effect of system
voltage (
E
8
)
Not applicable
Effect of
external
magnetic field
Accuracy × 0.5
Earth resistance
of auxiliary
earthing
electrode auto-
check
(auto-check
after start of
measurement)
Display range
1000
Ω
10 k
Ω
100 k
Ω
200 k
Ω
Maximum display
value
1000
Ω
10.0 k
Ω
100 k
Ω
200 k
Ω
Resolution
10
Ω
0.1 k
Ω
1 k
Ω
10 k
Ω
Accuracy
Not specified
Auto-check for
earth potential
*6
(auto-check
after start of
measurement)
Display range
42 Vpk
Maximum display
value
42.0 Vpk
Accuracy
±2.3 % rdg.±8 dgt.
Overload
protection
360 V AC (for 1 min, between each terminal)
360 V DC
(for 1 min, between each terminal)
Effect of earth
capacity (two-
pole method)
Up to 10 nF
Within accuracy specification
Above 10 nF to
500 nF
Accuracy × 2.0
Above 500 nF
Not specified
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