Máy đo điện trở cách điện Gossen Metrawatt M550R
Analog Test Instrument for Insulation
- Analog display of measured values and limit values
- Intelligent filter
- Signalling of dangerous contact voltage by means of LED
- Indication of limit value violations by means of LED
- Overvoltage protection - protects the instrument in the event of inadvertent connection to mains power
- Fuse link for all resistance measuring ranges
- Electronic fuse for protection of the low-resistance measurement RLO also protects the fuse link in the low-resistance measuring range in the event of faulty operation
- One measuring point self-test with test resistance of 10 MΩ per EN 50110 / VDE 0105-100
- Guard terminal for compensating surface current