Thiết bị đo điện trở đất
Model : MET2
Hãng sản xuất : Multi
Thiết bị đo điện trở đất Multi MET2, đo bằng phương pháp kẹp
- Measuring function : Earth Resistance, AC Current (Load & Leakage)
- A/D conversion : Dual slope integration mode
- Safety standard : IEC 61010-1,IEC61010-2-032 Installation category II 600V or CATⅢ 300V
- Sampling : Approx. 2 times/second for AC current
- Measuring time : Approx. 30 second for earth resistance
- Display : LCD16 letters/characters x 2 line with contrast adjuster
- Over range indication : “OVER” on LCD
- Low battery indication : “B” mark on LCD
- Data hold indication : “DH” mark on LCD
- Memory function : 200 measuring data can be stored and displayed
- Measuring CT :φ34mm with 2.5m lead
- Injection CT :φ34mm with 2.5m lead Injection signal : Approx. 160mV p-p, Auto sweep 4kHz～200kHz
- Operating temperature : 0°C～40°C, <85%RH without condensation
- Storage temperature : -10°C～60°C, <80%RH 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 : AC200V-240V(50/60Hz)
- Auto power off function : Approx. 5 minutes after power on
- Power consumption : Approx. 400mA (Earth resistance measurement)
- Battery life : Approx.400 times measurements under full charged condition
Phụ kiện kèm theo thiết bị Multi MET-2 bao gồm:
- Measuring CT
- Injection CT
- Battery charger
- Carrying case
- Subsidiary lead wire
- Instruction manual