JD-1B type ground resistance meter calibration device

JD-1B type ground resistance meter calibrator is a special instrument designed to implement the national calibration regulations of the People's Republic of China JJG336-2004 "Calibration Regulations for Ground Resistance Meters" and is used to calibrate ground resistance meters. It can be used to calibrate JJG336- The 2004 "Calibration Regulations for Ground Resistance Meters" is applicable to various types of analog and digital ground resistance meters currently produced in my country and similar imported instruments. They can also be used as ordinary resistance boxes, with wide adjustment range, easy use, and beautiful appearance. Beautiful and other advantages.

Category：

High voltage/ground resistor (device/box)

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Product description

Main Specifications:
1. Analog ground resistance

Step resistance (Ω)	*1000	*100	*10	*1	*0.1	*0.01	*0.001
Power (W)	0.25	0.25	0.25	0.25	0.1	0.1	0.1
Basic error limit (α%)	0.1	0.1	0.1	0. 1	1	5	10
Time constant τ (S)	≤5*10^-6
Resistance adjustment range (Ω)	0.1--11111.210 minimum step value 0.001Ω

2. Analog auxiliary ground resistance

Resistance value (Ω)	0	500	1000	2000	5000
Basic error limit (α%)	<0.05Ω	1Ω
Power (W)	0--0.25W

3. When the device access resistance is less than 1Ω, the residual inductance is less than 5μH
4. Temperature reference conditions and tolerance: 20±5℃
5. Nominal operating temperature: 20±15℃
6. Relative humidity of use environment: ≤80%
7. The line and shell can withstand a sine wave AC voltage of 2000V with a frequency of 50Hz without breakdown for 1 minute.
8. Overall dimensions: 410*260*150mm
9. Weight: <4.5kg

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