| Description de l'article | Safety low level limiter SIL3 / level switch type NRS 1-50B GESTRA spectormodul system two electrodes amplifier safety-integrity-level SIL 3 in combination with two NRG 16-50 electrodes, plastic housing, time delay 3 sec. Sensivity: > 0, 5 µs/CM stand-by input: 2 volt-free inputs, 24 V DC, for monitoring the purging and bypass time. Max. bypass time: 5 minutes. Safety circuit: 2 volt-free make contacts, 6 A 250 V AC / 30 V DC COS Φ = 1. DELAY OF RESPONSE: 3 seconds signal output: 2 volt-free outputs for instantaneous external signalling, 24 V DC, max. 100 MA (semiconductor output). Indicators and adjustors: 2 buttons for test and diagnosis, 4 red/green leds for indicating the operating mode and alarm. 3 red leds for fault diagnosis, 2 two-pole code switches for setting the number of electrodes. Power supply: 24 VDC +/- 20%, 7 W protection: IP40 |