GDS 301, Руководство по эксплуатации

Страница: 3 / 12

System Overview
The GDS 301 system is designed to monitor gas levels and provide alarms for the
presence of gas in a wide range of environments. The system consists of a sampling
unit with the sample tube run out to the target area.
A sample pump is used to extract a continuous sample for analysis by a range of sensor
devices. The pumping circuit incorporates a flow-sensing device, which provides indication
of pump failure or sample line blockage.
When gas is detected, the digital display will indicate the gas level, with the relevant alarm
LED illuminating and a buzzer sounding to alert the operator of the hazard. Relay contacts
are provided for control functions. Alarm repeater panels and remote audio-visual devices
are available for remote annunciation.
Pump failure or line blockage is indicated by an amber LED indicator located on the front
panel, the sounder is muted by pressing the mute button located on the internal flow fail
alarm board.
The system is supplied factory programmed and pre-calibrated to enable immediate
operation by connection of a mains voltage supply and sample line.
3
High
Low
Fault
Power
Reset
Test
Gas Alarm Sample Monitor 301 GDS 301
In Out
Sample
Flow fail