JD-1D Ground Resistance Meter Calibration Device
Contact Info
- Address:深圳市龍崗區(qū)銷售熱線:15914142916, Zip: 518116
- Contact: 馮先生
- Tel:15914142916
- Email:186jl@163.com
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JD-1D Ground Resistance Meter Verification Device
I. Overview
This ground resistance meter verification resistor is a specialized instrument designed in accordance with the verification regulation JJG 366-2004 "Verification Regulation for Ground Resistance Meters." It is used for verifying various models of analog and digital ground resistance meters, as well as imported similar instruments applicable under JJG 366-2004. It can also be used as a standard resistance box, featuring a wide adjustment range, ease of use, and an aesthetically pleasing design.
II. Main Technical Specifications
1. Simulated 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%) | 0.05 | 0.05 | 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. Simulated Auxiliary Ground Resistance
Resistance Value (Ω) | 0 | 500 | 1000 | 2000 | 5000 |
Basic Error Limit (α%) | ＜0.05Ω | 1 | |||
Power (W) | 0～0.25W | ||||
3. When the device is connected to a resistance less than 1Ω, the residual inductance is less than 5μH.
4. Temperature Reference Condition and Tolerance: 20±5℃
5. Nominal Operating Temperature: 20±15℃
6. Operating Environment Relative Humidity: ≤80%
7. The circuit and casing can withstand a 50Hz sinusoidal AC voltage of 2000V for 1 minute without breakdown.
8. Dimensions: 410×260×150mm
9. Weight: ＜4.5kg
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