HR-ST and LRM-ST type voltage indicators are portable parts of a voltage detecting system with capacitive single-pole coupling to live parts.
The HR / LRM function tester allows testing of the display and the overall function of the device.
According to the German accident prevention standard DGUV Regulation 3 (Table 1c), the device is subject to maintenance tests with minimum intervals of at least 6 years.
|HR-ST | LRM-ST|
|HR-ST and LRM-ST|
|HR-ST: Response voltage Ut||70 – 90 V|
|LRM-ST: Response voltage Ut||4 – 5 V|
|Nominal frequency||50 Hz|
|HR-ST: Input impedance||36.0 – 43.2 MΩ|
|LRM-ST: Input impedance||2.0 – 2.4 MΩ|
|Flash rate||≥1 Hz at threshold for voltage presence indication|
|Temperature range||-25 to +55 °C|
Voltage indicator fo high-resistance systems
Voltage indicator for low-resistance systems
Order no. 52-0211-007