Fluke Fluke 4325181 Manual Do Utilizador
Códigos do produto
4325181
Earth/Ground Tester
Specifications
47
Measuring sequence:
approximately 2 measurements/s
Measuring time:
typical 4 seconds includes reversal of polarity (2-pole or
4-pole)
4-pole)
Maximum interference voltage:
≤3 V ac or dc, with higher voltages measurement will not
be started
be started
Maximum inductivity:
2 Henry
Maximum overload:
U
rms
= 250 V
Compensation of Lead Resistance (R
K
)
Compensation of lead resistance (R
K
) can be switched on in functions R
E
3pole, R
E
3pole ,
R~, and R 2pole
Formation of measured value:
R
display
= R
measured
- R
compensated
*
*
Value of setpoint entry R
K
= 0.000
Ω
, variable from 0.000…29.99
Ω
by means
of measuring adjustment.
Stakeless Ground Loop Measurement (
)
Resolution Measurement
range
Accuracy Operating
Error
0.001 to 0.1
Ω
0.020
Ω
to 199.9
Ω
±
(7% rdg + 3 d)
±
(10% rdg + 5 d)
Measuring principle: Stakeless measurement of resistance in closed loops using two current
clamps
clamps
Measurement voltage:
Um = 48 V ac (primary)
Measurement frequency:
128 Hz
Noise current (I
ext
): max
I
ext
= 10 A (ac) (Ra < 20
Ω
)
max
I
ext
= 2 A (ac) (Ra > 20
Ω
)
The information about stakeless ground loop measurements is only valid when used in
conjunction with the recommended current clamps at the minimum distance specified.