Deadband-adjustable explosion-proof universal alarm

The XUA-XD Alarm Trip from Pribusin is a microprocessor-based instrument with a single or dual channel mode of operation. It can be configured as a high trip or a low trip (selectable by push-on pins inside the instrument).

The relays from Pribusin can be configured as a normally-energized or normally de-energized.

The output is 3 SPDT (form “C”) contacts rated at 0.4 A, at 125 Vac. The 3rd relay is used as an input fail (below 2mA) in the case of 4 to 20 mA inputs. The deadband can be adjusted from 0-100%, with the delay delectable as 0 or 5 minutes ON delay.

Features include:

• Class I Gr. D, C & D;
• Class II Gr. E, F & G;
• typical field calibration time of <2 min using handheld meter only;
• power rating of 24 Vdc, 60 mA; and,
• high noise rejection.