MGM 50570 Multi-Ground Monitor can continuously monitor 8 ground whether qualified. Each channel can set ground resistance individually. MGM 50570 has self-test function, no need to return to the original factory for calibration.
The MGM 50570 is a continuous multichannel ground monitor that can check up to eight grounding points such as work‑benches, shelves, tools, or equipment. The package includes the main unit, a grounding terminal block, a 100‑240 VAC to 12 VDC transformer, a plug‑type grounding lead, mounting screws, a calibration certificate, and this instruction manual.
The guide covers unpacking, front‑panel indicators, rear‑panel connections, setting resistance values for each channel, installation steps, alarm control, self‑calibration, self‑diagnosis, and technical specifications. It also explains how to use the SET keys to enter setting, calibration, and diagnostic modes, and how the green and red LEDs indicate grounding resistance status. This manual is written in Chinese.
| Dimensions | 18.4 x 10.4 x 2.5 cm |
|---|---|
| Weight | 0.42 kg |
| Operating Temperature | 0‑40 °C |
| Input Power | 100‑240 VAC |
| Test Voltage | 5 V for 1 MΩ/10 MΩ/35 MΩ; 1.25 V for 19 kΩ |
| Accuracy | ±10 % |
Press and hold the SET1 key for more than 3 seconds; the alarm sound will be turned off.
It monitors eight separate grounding channels.