Standard Resistor Calibration of Grounding Resistance Tester
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Product Description
1. The military
grade wire-wound resistance is used for manufacturing, with stable performance
and strong structure, especially convenient for calibration and testing.
2. Fully meet
the national weather service order "lightning protection device detection
qualification management approach" specified in the range of 10-3 ~
105 Ω.
Technical Specification
|
Function |
Used for calibration of grounding resistance tester,
equipotential tester and other instrument |
|
Range and Accuracy |
0.001Ω; 2% |
|
0.01Ω; 0.5% |
|
|
0.1Ω; 0.2% |
|
|
1.0Ω; 0.2% |
|
|
10Ω; 0.05% |
|
|
100Ω; 0.05% |
|
|
1KΩ; 0.05% |
|
|
10KΩ; 0.05% |
|
|
100KΩ; 0.05% |
|
|
Connection Wire Method |
4-wire method |
|
Power |
1/2W |
|
Temperature Coefficient |
±25ppm |
|
Dimension |
173mmX125mmX70mm |
|
Weight |
360g |
|
Test Line |
Red 0.5m & black 0.5m, each with 2pcs |
|
Working Temperature and Humidity |
-10℃~40℃;80%rh below |
|
Storage Temperature and Humidity |
-20℃~60℃;70%rh below |
|
Insulation Resistance |
10MΩ above(between the circuit and shell
500V) |
|
Withstand Voltage |
AC 3700V/rms(between the
circuit and shell) |
|
Suitable Safety Standard |
IEC61010-1,CAT Ⅲ 600V,Polluted Gradation |