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Earth/Ground Tester
Specifications
19
Resistance Measurement (R
F
)
Measuring method: current- voltage measurement as per IEC61557-4
possible
Open circuit voltage: 20 V DC
Short circuit current: 200 mA DC
Formation of measured
value:
with 4-pole measurement wires on H, S, ES can
be extended without additional error.
Resistances >1 Ω in wire E can cause additional
error of 5m Ω/Ω.
Measuring
Range
Display Range Resolution Intrinsic
Error
Operating
Error
0.001 Ω ... 2.999 Ω 0.001 Ω
0.020 Ω 3.0 Ω ... 29.99 Ω 0.01 Ω
3 kΩ 30.0 Ω ... 299.9 Ω 0.1 Ω
±( 2 % of
m.v. +2
digit)
±( 5% of
m.v. +5
digit)
300 Ω ... 2999 Ω 1 Ω
Measuring sequence: approx. 2 measurements/s
Measuring time: typ. 4 sec. incl. reversal of polarity (2 pole or 4
pole)
Max. interference voltage: ≤ 3 V AC or DC, with higher voltages measure-
ment will not be started
Max inductivity: 2 Henry
Max. overload: Urms = 250 V