HT Speed Meter 418 is a Multifunction device for overall earth resistance measurement and rcd tests.
- Global Earth Resistance without RCD tripping.
- Trip out the time of RCDs type AC, A Standard, and Selective.
- Trip out a current of RCDs type AC, A Standard, and Selective.
- Loop Impedance P-P, P-N, P-PE.
- Loop Impedance with high resolution (with IMP57 optional accessory).
- Prospective short circuit current.
- Contact voltage.
- Phase sequence indication.
- Measure with remote probe (with PR400 optional accessory).
- Contextual help at the display.
- Internal memory.
- Optical-USB interface with a PC connection.