Thiết bị đo điện trở đất
Model : MET1
Hãng sản xuất : Multi
Thiết bị đo điện trở đất Multi MET1, đo bằng phương pháp clamp
- Measuring function : Earth Resistance, AC Current (Load & Leakage)
- A/D conversion : Dual slope integration mode
- Display : LCD, 16 letters/characters x 2 lines : with contrast adjuster
- Safety standard :IEC 61010-1,IEC61010-2-032 Installation category II, 600V or CATⅢ 300V
- Sampling : Approx. 2 times/sec. for AC current
- Measuring time : Approx. 30 second for earth resistance
- Over range indication : “OVER” on LCD
- Low battery indication : “B” mark on LCD
- Data hold indication : “DH” mark on LCD
- Measuring CT :φ34mm with 2.5m lead
- Injection CT :φ34mm with 2.5m lead
- Injection signal : Approx. 320mVp-p, Auto sweep 4KHz～400KHz
- Operating temperature : 0°C～40°C, <85%RH( without condensation)
- Storage temperature : -10°C～60°C, <80% (without condensation)
- Limitation of circuit : Less than 500V voltage
- Withstanding voltage : AC 3700V, 1 minute ( between CT core and CT handle)
- Insulation resistance : More than 100MΩ (between CT core and CT handle)
- Power supply : Ni-Cad battery (1.2V x 5)
- Battery charger : AC100V～240V (50/60Hz)
- Auto power off function : Approx.5 minutes after power on
- Battery life : 450 times measurements under full charged condition (Subject to the times of charging & discharging)
Phụ kiện kèm theo thiết bị Multi MET1 bao gồm:
- Measuring CT
- Injection CT
- Battery charger
- Carrying case
- Instruction manual