EARTH CLAMP TESTER

KEW 4202

Various useful functions are available on Android devices using Bluetooth communication

  • The earth resistance from 0.05 to 1500Ω can be measured without the auxiliary earth spikes in multi-earthing systems
  • True RMS leakage or phase current readings from 0.1mA to 30.0A provides vital additional information in earthing networks
  • Filter function offers increased immunity to electrical noise and a Noise mark appears in excessively high noisy environments
  • Memory function up to 100 data
  • Bluetooth® communication

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Product Overview

KEW Smart 4202

Free Android software "KEW smart 4202" is available on "Google Play Store"(*)

Get it on Google Play

<System requirement>

  • Supporting Android Ver. 8 to 15
  • WVGA (800 × 480) resolution or higher
  • GPS function

* Please search "KEW Smart" in Google Play Store.
Communication charge may be incurred separately to download application.

Specification

Earth resistance (Auto-ranging) 20.00/200.00/1500Ω
±1.5%±0.05Ω(0.00 to 20.99Ω) *1
±2%±0.5Ω(16.0 to 99.9Ω)
±3%±2Ω(100.0 to 209.9Ω)
±5%±5Ω(160 to 399Ω)
±10%±10Ω(400 to 599Ω) 
Values are displayed, but accuracy isn't guaranted(600 to 1580Ω) 
AC current (50Hz/60Hz) (Auto-ranging) 100.0/1000mA/10.00/30.0A
±2%±0.7mA(0.0 to 104.9mA)
±2%(80mA to 31.5A)
Operating indication Earth resistance function :
   Constant voltage injection
   Current detection (Frequency : Approx.2400Hz)
   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
Communication interface Bluetooth®5.0
Current consumption Approx. 50mA (max.100mA)
Measurement time Approx.5 hours (when R6 is used)
Approx. 21 hours (when LR6 is used)
Auto power off Turns power off about 10 minutes after the last button operation.
Conductor size Approx.Ø32mm
Applicable standards IEC 61010-1 CAT Ⅳ 300V Pollution degree2
IEC 61010-2-032, IEC 61326 (EMC)
Power source LR6/R6(AA) (1.5V) x 4
Dimension 246(L)×120(W)×54(D)mm
Weight Approx. 780g (including batteries)
Accessories 8304 (Resister for operation check)
9167 (Carrying case[Hard])
LR6 x 4, Instruction manual

* Crest factor ≦ 2.5 (50/60Hz, peak value shall not exceed 60A)
*1 4 counts or less are corrected to 0.

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