Specification
The CAL-ER is a precision resistance calibrator used for calibrating earth resistance testers, grounding resistance testers, and equipotential testers. It provides standard resistance values for accurate verification and calibration of grounding measurement instruments.
Key Specifications:
- Resistance Ranges: 0.001 Ω to 100 kΩ
- Accuracy: ±0.05% (depending on range)
- Connection Method: 4-wire (Kelvin)
- Temperature Coefficient: ±25 ppm
- Insulation Resistance: >10 MΩ
- Withstand Voltage: AC 3700 V rms
- Safety Standard: IEC 61010-1, CAT III 600 V
- Dimensions: 173 × 125 × 70 mm
