Monitoring relay CRMA1-28

• These units monitor a current of 0-1, 0-10 or 4-20 mA, e.g. from a transducer, and operates one of two relays if the current goes above or below set levels. Front panel controls allow selection of:
• under- and over-current trip levels Imax, Imin
• nominal rated current of 0-1, 0-10 or 4-20 mA (Iin)
• time delay before a trip triggers a relay response.
• LEDs indicate power on and trip status. Two changeover, volt-free relays are fi tted.
• Two types are available – a 12-24 unit powered from 12-24V DC and a
24-240 unit powered from 24V-240V AC or DC
• These instructions contain important safety information. Please read
them thoroughly before commissioning, operating or maintenance of
the unit.