Fluke 1623-2 Datasheet - Page 4

Stakeless ground loop measurement

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Measuring principle: Current/voltage measurement (with external current clamp) Measuring voltage Short-circuit current Measuring frequency Probe resistance (RS) Auxiliary earth electrode resistance (RH) Monitoring of RS, and RH with error indicator Automatic range selection Measurement is not performed if the current through the current clamp is too low Vm = 48 V ac > 50 mA 128 Hz Max. 100 kΩ Max. 100 kΩ Stakeless ground loop measurement ( ) Switch position RA 4-pole Resolution 0.001 Ω to 0.1 Ω Measuring range 0.020 Ω to 199.9 Ω Accuracy ± (7 % rdg + 3 d) Operating error ± (10 % rdg + 5 d) Measuring principle: Stakeless measurement of resistance in closed loops using two current transformers Measuring voltage Vm = 48 V ac (primary) Measuring frequency 128 Hz Noise current (IEXT) Max. IEXT = 10 A (ac) (RA < 20 Ω) Max. IEXT = 2 A (ac) (RA > 20 Ω) Automatic range selection The information regarding stakeless ground loop measurements is only valid when used in conjunction with the recommended current clamps at the minimum distance specified. MyFlukeStore Shop for Fluke products online at: www. .com 1.877.766.5412

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Measuring principle: Current/voltage measurement (with external current clamp)
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measuring frequency
128 Hz
Probe resistance (R
S
)
Max. 100 k
Ω
Auxiliary earth electrode resistance (R
H
)
Max. 100 k
Ω
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
Stakeless ground loop measurement (
)
Switch position
Resolution
Measuring range
Accuracy
Operating error
R
A
4-pole
0.001
Ω
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 transformers
Measuring voltage
Vm = 48 V ac (primary)
Measuring frequency
128 Hz
Noise current (I
EXT
)
Max. I
EXT
= 10 A (ac) (R
A
< 20
Ω
)
Max. I
EXT
= 2 A (ac) (R
A
> 20
Ω
)
Automatic range selection
The information regarding stakeless ground loop measurements is only valid when used in conjunction with the recommended current clamps at the minimum
distance specified.
Shop for Fluke products online at:
1.877.766.5412
www.
MyFlukeStore
.com