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Environmental Monitoring

Differential Pressure Monitor


  • Channels: 3 to 24
  • Display: HMI touch screen
  • Default Range: -50 to +50Pa
  • Accuracy: +/- 0.5% F.S. at 20°C
  • Outputs: 4 to 20mA and 0-10V

Air Pressure Transmitter


  • Channels: 1
  • Display: Digital
  • Default Range: 0 to 25Pa
  • Accuracy: +/- 1% F.S. at 21°C
  • Output: 4 to 20mA

Air Pressure Gauge


  • Channels: 1
  • Display: Analogue
  • Default Range: -30 to +30Pa
  • Accuracy: +/- 2% F.S. at 21°C
  • Output: None

Environmental Monitoring

Apreco provide a range of precision pressure monitor products to support the VARI-Centric® range of Air Pressure Stabilisers.

At the top end of the range is the Differential Pressure Monitoring (DPM) system which has the ability to automatically monitor pressures in multiple rooms from a central location. It also has the ability to communicate with the Building Management System (BMS) via 0-10V outputs. This system provides a local alarm for the users with an additional output to the BMS as required. The system has adjustable alarm limits and delay periods to suit specific customer requirements. The wall mounted touch screen user interface has an intuitive interface for the operators to keep them informed of the system status. This coupled to the high quality precision pressure transmitters housed in the main control cabinet you have a robust reliable differential pressure monitoring system.

If you are looking for a single room monitoring system we can offer the real-time monitoring of the pressure differentials in either a digital or analogue display. The Air Pressure Transmitter (APT) has the benefit of the 4-20mA output signal, where the Air Pressure Gauge (APG) has the benefit of not requiring any power source. Both of these single gauge systems have purpose designed enclosures for use with internal stud partition walls.

Reference Sites:

Wrightington Hospital

Wrightington, UK

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