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Detector Information
Detector location ill vary dependant on the individual characteristics of the target gas that is being monitored for.
The descriptions belo describe the position for each detector after considering these characteristics.
For proper function care must be taken not to site a detector in a “dead space” or in the flo of any ventilation.
Natural Gas/Methane
Natural gas detectors should be mounted at high level on a all approximately 150mm from the ceiling height and avoiding
corners and potential dead air areas.
Natural gas detectors should not be mounted belo the height of the top of a door ay for example. This is because as the gas
is slightly lighter than air it ill rise filling the room from the ceiling do n and ill spill through the top of a door opening into the
next room. If the detectors are mounted belo this height then it ill take longer the gas to reach the detector.
LPG /Propane
LPG gas is heavier than air so detectors need to be mounted at lo level 100mm from the floor, consideration should be given
to any potential mopping or et floor height.
Carbon Monoxide
Carbon Monoxide is similarly eighted to air so detectors should be mounted bet een 1 to 2 meters from the floor.
Carbon Dioxide
Carbon Dioxide detectors should be installed so they monitor the general level of CO2 ithin the area. They should be mounted
above standing head height and bet een 1m and 3m from the potential source. Care should be taken so they are not located
close to the edge of a canopy or in direct flo of the supply or extract ventilation.
For additional information or guidance on site specific requirements please don’t hesitate to contact us.
Each detector has its o n Bi-Colour LED hich is used to indicate the status of that detector.
Not Lit: No po er/comm’s. These a four ire units and all connections are required, check the polarity of both the
po er and the comm’s (MA/MB) terminals are correct. Check the detector is address to the correct channel
and the channel has been enabled using s itch (12)
Flashing Green: Detector is arming up, the detectors ill flash green on po er up for 90 seconds hile the sensor
elements stabilize. The system ill ignore any detectors hile flashing.
Solid Green: Detector is po ered and active.
Flashing Red: Lo level alarm. All detectors have both a lo and high level alarm, lo level alarms serve as a arning
that an unsafe condition maybe building and gives chance to intervene before loss of gas service.
Solid Red High level alarm. An unsafe level of the target gas have been reached and the system ill isolate the
gas supply. The cause of the alarm ill require identifying and resolving before the gas supply can be re-
established.
After installation a simple bump test can be performed by using an appropriate level test gas in order to check operation. Full
testing and calibration checking takes place during a Medem commissioning.
AGDS-MC
Detector Location information
Detector Indications
