Sign In
The Kewtech KEW4200 can measure the earth resistance by simply clamping around the earthed wires. This instrument also has a AC current function to measure current up to 30A the same as traditional leakage clamp meters.
FEATURES
True RMS for highly accurate readings.
Measures earth resistance without auxiliary earth spikes.
Measures earth resistance from 0.05 to 1200Ω.
Noise check function.
Memory function saves up to 100 measurements.
Data hold memory function.
Buzzer function.
Back light.
KEW4200 Digital Earth Resistance Clamp Tester
Kewtech KEW4200 Specifications
Function
Range
Resolution
Measuring Range
Accuracy
Earth resistance
20 Ω
0.01 Ω*
0.00 ~ 20.00 Ω
+1.5% +0.05 Ω
Auto Range
200 Ω
0.1 Ω
16.0 ~ 99.9 Ω
100.0 ~ 209.9 Ω
+2% +0.05 Ω
+3% +2 Ω
Auto Range
1200 Ω
1 Ω
160 ~ 399 Ω
400 ~ 599 Ω
+5% +5 Ω
+10% +10 Ω
Auto Range
1200 Ω
10 Ω
600 ~ 1260 Ω
AC Current
100 mA
0.1 mA
0.0 ~ 104.9 mA
+2% +0.7 Ω
[50Hz/60Hz]
1000 mA
1 mA
90 ~ 1049 mA
Auto Range
10 A
0.01 A
0.80 ~ 10.49 A
+2%
30 A
0.1 A
8.0 ~ 31.5 A
Operating
System
Earth resistance function: Constant voltage injection
Current detection (Frequency: approx 2400 Hz)
Dual Integration
AC current function: Successive Approximation
Over-range
indication
“OL” is displayed when input exceeds the upper limit of a measuring range.
Response time
Approx. 7 seconds (Earth resistance) Approx 2 seconds (AC current).
Sample rate
Approx. 1 times per second.
Power source
DC6VL R6P (size AA manganese battery) x4 or LR6 (size AA alkaline battery) x4.
Current
consumption
Approx 12 hours (when R6P is used)
Approx 24 hours (when LR6 is used).
Auto power-off
Turns power off about 10 minutes after the last button operation.
Reading Type
TRMS Ohms range uses rolling average.
Applicable
Standards
IEC 61010-1: “001 (CAT.IV 300 V Pollution degree 2)
Withstand
voltage
AC5320Vrms / 5 seconds
Between the transformer jaws fitted parts and case enclosure (except for jaws).
Conductor Size
Approx. 32 mm.
Dimensions
246(L) x 120(W) x 54(D) mm.
Weight
Approx. 780g (including batteries).
Kewtech KEW4200 warranty
Two-years.
* 4 counts or less are corrected to 0.
For more information on Kewtech KEW4200 Digital TRMS Earth Resistance Clamp talk to Cuthbertson Laird Group
Enquire Now
List your company on FindTheNeedle.