Fluke 1623-2 Datasheet - Page 9

Compensation of lead resistance R, Stakeless ground loop measurement

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Compensation of lead resistance (RK) Compensation of lead resistance (RK) can be switched on in functions RE 3-pole, RE 4-pole Formation of measured value R = R - R * display measured compensated , R~ , and R * Value of setpoint entry RK = 0.000 Ω, variable from 0.000 to 29.99 Ω by means of measuring adjustment. 2-pole Stakeless ground loop measurement ( ) Switch position RA 4-pole Resolution 0.001 Ω to 0.1 Ω Measuring range 0.02 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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Compensation of lead resistance (R
K
)
Compensation of lead resistance (R
K
) can be switched on in functions R
E
3-pole, R
E
4-pole
, R~ , and R
2-pole
Formation of measured value
R
display
= R
measured
- R
compensated
*
* Value of setpoint entry R
K
= 0.000
Ω
, variable from 0.000 to 29.99
Ω
by means of measuring adjustment.
Stakeless ground loop measurement (
)
Switch position
Resolution
Measuring range
Accuracy
Operating error
R
A
4-pole
0.001
Ω
to 0.1
Ω
0.02
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