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2
Overview
The GS300Mc is a wall or panel mounted microprocessor based gas detector control unit. It has a secure test facility
which allows sensors to be fully tested by applying test gas without disconnecting the electrical supply to Gas valves.
The GS300Mc can be configured to meet customer requirements. The following parameters can be changed using on
board DIP switches:
(See Configuring the GS300Mc)
• Number of sensors from 1 to 3
• Type of gas to be sensed (explosive or toxic)
•
Positive Safety Option (on or off)
• Main alarm relay action (permanent or temporary)
Audible alarm (memory or non-memory mode)
• O
2
Monitoring (on or off) (Please note: GS300Mc will only be able to detect O
2
and no other gases when set to on)
The GS300Mc has one fault relay that breaks the connection in case of system failure. This can be used to constantly
monitor the operation of the controller remotely (eg through a BMS). The relay driving technology (de-energized when
triggered) will ensure a prompt indication even in case of mains power failure.
The GS300Mc has two plug in terminal blocks. One is for the incoming mains supply and alarm circuit wiring and the
second is for connecting the sensor wiring.
This reduces the chance of incorrect site wiring. The front panel has two overload lights which indicate when a short
circuit or an overload has occurred on the sensor wiring.
144
77
108
144
140
141
141
Cutout
Dimensions (mm)
Mounting Bracket
Control panel
Mounting the GS300Mc
Overall Dimensions (mm)
