Digital pressure controller Alfa 77

The Alfa 77-PI is a compact three stage low pressure pressostat for panel mounting with a neutral zone and a 0/+10Vdc P(I) output. The Alfa 77-PI has a default program with the function minimum/ maximum alarm. The pressostat can also be programmed with the function: 2x minimum or 2x maximum alarm. The Alfa 77-PI has a range of -100/+1000 Pa with a read-out per 1 Pa. The required range can be programmed. To the Alfa 77-PI, pressure sensors from the PX 25-2 range can be connected. These sensors are not included. The Alfa 77-PI is supplied with 12Vac. A special transformer can be delivered. Technical specifications Housing: Zwart ABS Kunststof Dimensions: 144 x 72 x 50 mm (hbd) Front: Polyester Front connection: Via Wartels op schroefklemmen Power input: 12 Vac, 50/60 Hz (‑10/+5%) Measure range: -1/+99 Bar, uitlezing per 0,1 Bar Controls: Via druktoetsen op het front, druk verhogen/druk verlagen of 3x druk verhogen of 3x druk verlagen (intern programmeerbaar) mini mum/maximum alarm Sensor: Voeding 12Vdc voor sensoren uit de PX reeks Relay: druk verhogen SPST contact 250V/5A (NO) druk verlagen SPST contact 250V/5A (NO) alarm SPDT contact 250V/5A (NO/ NC) (gezamelijke common, niet induc tief) Accuracy: ± 0.5% van het bereik