GESTRA NSR1-50 NSR 1-50 For One Electroda
The NRS 1-50 level switch is designed for different boiler water conductivities and for the connection of a single level electrode. If the water falls below the minimum level, the level electrode is exposed and an alarm is triggered in the level switch. This switchpoint is determined by the length of the electrode extension (level electrode NRG 1…-50). When the off delay has elapsed, the two output contacts of the level switch open the safety circuit for heating. The heating cut-off is interlocked in the external safety circuit and this interlock can only be deactivated again when the level electrode is immersed once more. In addition, the signal contact for external signaling devices closes without a delay. The NRS 1-50 level switch must be used in combination with an external manual reset when used as a protective device per ASME CSD-1. An alarm is also triggered if faults occur in […]