Gas Detection    |    CO2 Detection    |    Gas pressure proving    |    Gas Proving & Detection    |    Ventilation Interlock    |    Ancillary Controls
Commercial kitchen    |    Education Facilities    |    School laboratories    |    Boiler rooms    |    Commercial Buildings




This system has now been superseded by the SEC-B

Gas detection and pressure proving system

The APS-3 gas detection and gas pressure proving system has been designed for use in boiler houses and plant rooms.

Low voltage sensors for the detection of natural gas, LPG or carbon monoxide are connected to the panel that will alarm and close the electric control valve in the event of dangerous levels being detected.

The APS-3 is also a gas pressure proving system so that the IGE UP1A edition 2 standard can be complied with. This ensures that there are no gas leaks before the control valve is opened after a closure for any reason.

Under HSE document PM5 and BS5885 the APS-3 can auto reset after an electricity supply failure when used in boiler room applications. For industrial applications the APS-3IN must be used as this model does not auto reset in keeping with the industrial standards.

If you require further information about this product please call us on 0161 233 0600 or email at and we'll be more than happy to help.

  • Sender
  • AD-MED-CO2 Sensor
  • APS-3

Design & Specification Documents

  • 5 Year Warranty

    5 Year Warranty

    Medem’s industry leading five-year warranty is a demonstration of the company’s confidence in the quality and design of our products.

    This applies to the main panels and sender units, gas detectors carry a two year warranty.

    Where we commission an installed system the warranty is extended from five to ten years. At the time of commissioning photos and gas pressure readings are recorded along with other relevent details of the installation. A 24 hour help line number and serial number is attached with the panel and all details are then entered on to the Medem database.

    5 & 10 year warrenty

  • Auto restart on power failure

    Auto restart on power failure

    As per HSE document PM5 and BS5885 when fitted within a boiler room you can enable our auto-restart option.

    When enabled, after a power cut the system will automatically preform a gas pressure test which will (assuming no gas leaks) re-establish the gas supply.

Differential pressure proving?

Differential pressure proving?

Why choose Medem differential pressure proving?

The differential gas pressure proving method as developed and patented by Medem operates by *measuring* the pressure deferentially across the inlet and....

more >>