User manual for the C.A 6545 and 6547 multifunction insulation resistance testers, covering operation, specifications, maintenance and safety.
The C.A 6545/6547 multifunction insulation resistance tester is a portable, rugged instrument with a large back‑lit LCD display. It can measure voltage, resistance and capacitance, and operates from battery or AC power. The manual provides safety symbols, operating conditions, measurement procedures, and maintenance guidelines.
Key sections include an introduction to the device, detailed description of the front panel and controls, measurement functions (AC/DC voltage, insulation, capacitance, residual current), special functions, memory/RS‑232 interface, specifications, maintenance, warranty and ordering information. This manual is written in Chinese.
| Operating temperature | 23 °C ± 3 K |
|---|---|
| Relative humidity | 45 %–55 % |
| Power supply voltage | 9 V–12 V |
| Measurement range (voltage) | 1.0 V–5100 V |
| Maximum insulation measurement voltage | 5000 V |
| Resolution (voltage) | 0.1 V |
The instrument operates at 23 °C ± 3 K.
It can be powered from 9 V to 12 V.
The maximum insulation measurement voltage is 5000 V.