| Description de l'article | Safety high level limiter SIL3 / level switch type NRS 1-51B safety-integrity-level SIL 3 in combination with NRG 16-50 electrode, plastic housing, time delay 3 sec. Sensivity: > 0, 5 µs/CM stand-by input: 1 volt-free input, 18 - 36 VDC, for monitoring the purging and bypass time. Max. bypass time: 5 minutes. Outputs: Control circuit: 2 volt-free make contacts, 6 A 250 V AC / 30 V DC COS Φ = 1 DELAY OF RESPONSE: 3 seconds signal output: 1 volt-free output for instantaneous external signalling, 24 V DC, max. 100 MA (semiconductor output). Indicators and adjustors: 1 button for test and diagnosis, 2 red/green leds for indicating the operating mode and alarm, 3 red leds for diagnosis. Power supply: 24 VDC +/- 20% protection: IP40 |