Installation, Operation & Maintenance Manual Merlin Gas Detector-X
DETX-IOM Iss: 7 02-21
5
Typical Installation Arrangement
The Merlin panel should be located outside of the hazardous area that it is monitoring.
Easy accessibility is required both for status observation and alarm purposes.
The Gas Detectors are designed around a centralised control panel of which the location also needs to be
considered. The Merlin panel should be located outside of the hazardous area that it is monitoring. Easy
accessibility is required both for status observation and alarm purposes.
Where connections may exceed 100 metres from one control panel – Contact your supplier!
The use of sound strobes are highly recommended!
Mounting
Unpack all the parts!
Designed for surface mounting, it must be installed by a licensed, insured contractor.
A deeper back case is supplied to accommodate wiring if required.
1.
Carefully remove the rear cover from the unit by releasing the two latching
clips located at the bottom of the case.
To do this – use a small flat head screwdriver.
2.
Using the rear cover - mark the screw holes to the wall.
Ensure the wall surface is flat to prevent base distortion.
3.
There are two pre-fractured areas for cable entry provided on the inside of the
rear cover which may be cut away as required.
4.
After executing the mounting and the connections – replace the rear cover
ensuring the two clips are latched.
5.
Make a note of the installation date on the label located on the side of the unit.
Be careful when creating access for cables – Damage to boards will void any warranty!
Any damage attempting to remove the circuit board parts may void any warranty!
Wiring of different circuits shall be separated by means of routing, clamping or barrier!
If devices are not grounded, they can give false readings or become a safety hazard!
For MODBUS communications, a shielded cable is used!
We recommend all Merlin gas detection equipment is commissioned by competent/trained engineers to
ensure correct installation and operation.
The Merlin range of gas detectors are optimum calibrated when manufactured. However, we strongly
recommend the detectors response and fault conditions are tested and validated once installed. This will
ensure the equipment is performing as intended and free from unforeseen damage caused by
transit/installation.
