Fluke 1623 Fluke 1623 and 1625 Geo Earth Ground Testers Datasheet - Page 3

pole ground resistance measurement IEC 1557-5, pole ground resistance measurement IEC 1557-5, pole - 1625

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RA 3-pole ground resistance measurement (IEC 1557-5) Switch position Resolution Measuring range RA 3-pole 0.001 7 to 10 7 0.001 7 to 19.99 k7 For 2-pole measurements connect terminals H and S with the supplied connector cable. Intrinsic error ± (2 % rdg + 3 d) Operating error ± (5 % rdg + 3 d) Measuring principle: Current and voltage measurement Measuring voltage Vm = 48 V ac Short-circuit current > 50 mA Measure frequency 128 Hz (125 Hz on request) Probe resistance (RS) Auxiliary earth electrode resistance (RH) Additional error from RH and RS Monitoring of RS and RH with error indicator Automatic range selection Max 100 k7 Max. 100 k7 RH[k7]• • •RS[k7]/RA[7 0.2 % Measurement is not performed if the current through the current clamp is too low RA 4-pole ground resistance measurement (IEC 1557-5) Switch position RA 4-pole Resolution 0.001 7 to 10 7 Measuring range 0.001 7 to 19.99 k7 Measuring principle: Current/voltage measurement Measuring voltage Short-circuit current Measuring frequency Probe resistance (RS+ RES) Auxiliary earth electrode resistance (RH) Additional error from RH and RS Monitoring of RS, and RH with error indicator Automatic range selection Intrinsic error ± (2 % rdg + 3 d) Operating error ± (5 % rdg + 3 d) Vm = 48 V ac > 50 mA 128 Hz (125 Hz on request) Max. 100 k7 Max. 100 k7 RH[k7]• • •RS[k7/RA[7]• • •0.2 % RA 3-pole selective ground resistance measurement with current clamp (RA Switch position RA 3-pole Resolution 0.001 7 to 10 7 Measuring range 0.001 7 to 19.99 k7 Intrinsic error ± (7 % rdg + 3 d) ) Operating error ± (10 % rdg + 5 d) Measuring principle: Current/voltage measurement (with external current clamp) Measuring voltage Vm = 48 V ac Short-circuit current > 50 mA Measuring frequency 128 Hz (125 Hz on request) Probe resistance (RS) Auxiliary earth electrode resistance (RH) Monitoring of RS, and RH with error indicator Automatic range selection Max. 100 k7 Max. 100 k7 Measurement is not performed if the current through the current clamp is too low 3 Fluke Corporation 1623 and 1625 GEO Earth Ground Testers

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Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
R
A
3-pole ground resistance measurement (IEC 1557-5)
Switch position
Resolution
Measuring range
Intrinsic error
Operating error
R
A
3-pole
0.001
to 10
0.001
to 19.99 k
± (2 % rdg + 3 d)
± (5 % rdg + 3 d)
For 2-pole measurements connect terminals H and S with the supplied connector cable.
Measuring principle: Current and voltage measurement
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measure frequency
128 Hz (125 Hz on request)
Probe resistance (R
S
)
Max 100 k
Auxiliary earth electrode resistance (R
H
)
Max. 100 k
Additional error from R
H
and R
S
R
H
[k
]
•••
R
S
[k
]/R
A
[
]
•••
0.2 %
Monitoring of R
S
and R
H
with error indicator
Automatic range selection
Measurement is not performed if the current through the current clamp is too low
R
A
4-pole ground resistance measurement (IEC 1557-5)
Switch position
Resolution
Measuring range
Intrinsic error
Operating error
R
A
4-pole
0.001
to 10
0.001
to 19.99 k
± (2 % rdg + 3 d)
± (5 % rdg + 3 d)
Measuring principle: Current/voltage measurement
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measuring frequency
128 Hz (125 Hz on request)
Probe resistance (R
S
+ R
ES
)
Max. 100 k
Auxiliary earth electrode resistance (R
H
)
Max. 100 k
Additional error from R
H
and R
S
R
H
[k
]
•••
R
S
[k
/R
A
[
]
•••
0.2 %
Monitoring of R
S
, and R
H
with error indicator
Automatic range selection
R
A
3-pole selective ground resistance measurement with current clamp (R
A
)
Switch position
Resolution
Measuring range
Intrinsic error
Operating error
R
A
3-pole
0.001
to 10
0.001
to 19.99 k
± (7 % rdg + 3 d)
± (10 % rdg + 5 d)
Measuring principle: Current/voltage measurement (with external current clamp)
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measuring frequency
128 Hz (125 Hz on request)
Probe resistance (R
S
)
Max. 100 k
Auxiliary earth electrode resistance (R
H
)
Max. 100 k
Monitoring of R
S
, and R
H
with error indicator
Automatic range selection
Measurement is not performed if the current through the current clamp is too low