Kyoritsu KEW 4202 - Earth Clamp Tester

Name: Kyoritsu KEW 4202 - Earth Clamp Tester
Brand: KYORITSU
SKU: 37
Price: 21640000 VND
Availability: InStock

₫21,640,000

(Tax excluded)

✅Real time measurements can be transferred, shown and saved on Android device (up to 100 measurements)

✅Saved data includes measurement, GPS location and date & time Easy to check on map "When" and "Where" the measurement was made

✅Comparator function on Android device informs when the measured value is lower/higher than the preset value Earth /Ground resistance and Leakage current measurement functions

✅The earth resistance from 0.05 to 1500 Ω 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

Hotline: 0911.159.019

Email: sales@thietbidochuyendung.com

Description
Product Details

Earth Clamp Tester

Kyoritsu KEW 4202

This instrument is a digital clamp-on earth resistance tester, and it is used in multi- earthed systems. Can measure the earth resistance by simply clamping around the earthed wires. This instrument also equips AC current function to measure current up to 30A same as our traditional leakage clamp meters. A single earthing cannot be measured (only for multiple-earthing system)

KEW Smart 4202
		Free Android software "KEW smart 4202" is available on "Google Play Store"() System requirement* • Supporting Android ver. 4.0 or higher • 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.

Why earth resistance can be found by only clamping it?

Rx, is defined as earth resistance under test, and R1, R2...Rn are defined as earth resistance of other measuring objects. These earth resistances, R1, R2, Rn can be considered that they are connected in parallel. And they can be regarded as a combined resistance Rs. The Rs can be regarded small enough against Rx since a combined resistance consists of several resistances. Following is an equivalent circuit diagram of this circuit.

Voltage V is applied to the object (Resistance Rx) measured from the voltage injection transformer CT1, and the current I corresponding to the earth resistance is flowed. Rx)) Rs= CT2 The current I is detected with detection transformer CT2, and object (Resistance Rx) measured can be put out by the calculation. (refer to the right diagram)

Earth resistance Auto range	20.00/200.00/1500Ω ±1.5%±0.05Ω(0.00 - 20.99Ω) ±2%±0.5Ω(16.0 - 99.9Ω) ±3%±2Ω(100.0 - 209.9Ω) ±5%±5Ω(160 - 399Ω) ±10%±10Ω(400 - 599Ω)
AC current (50Hz/60Hz) Auto range	Values are displayed, but accuracy isn't guaranted(600 - 1580Ω) 100.0/1000mA/10.00/30.0A ±2%±0.7mA(0.0 - 104.9mA) ±2%(80mA - 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 Ver2.1 + EDR Class2
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	DC6V : R6(sizeAA manganese battery) x 4 or LR6 (sizeAA alkaline battery) x 4
Dimensions	246(L)×120(W)×54(D)mm
Weight	Approx. 780g (including batteries)
Included Accessories	LR6 x 4, Instruction manual 8304 (Resister for operation check) 9167 (Carrying case[Hard])