GDS306 Sequential Gas Sampling System
The GDS 306 system is designed to monitor gas levels from a number of sample-points, targeted at situations where the positioning of conventional gas sensors may not be practical. This may be due to equipment security, cable routing, access for detector head installation/maintenance, harsh environment or a cost effective means of monitoring designated hazardous areas, typically - tunnels, marine applications, underground/high level voids, process control, landfill, multi storey car parks, brewing, horticulture, superstore multi refrigeration units.
Gas samples are sequentially extracted for a timed period by a central control unit via fixed sample lines. A high rate sample is taken by the main pump during which a reduced rate sample is passed across the sensor device. The central unit provides gas level readouts with two alarm trip points per line, providing a range of signal outputs for annunciator and control functions.
The GDS 306 sampling system can monitor up to 2 gas types as a standard or up to 4 as special build. Contact us for more options.
Specifications
- Up to 20 sample points
- No sample line purge delay
- Wide range of sensor type
- Digital display
- Selectable sample line sequence
- Easily installed and maintained
- Event logging / Modbus / RS232 / RS485
- Line blockage and pump fail monitoring
- Optional Hazardous area operation
- 230/115vAC 50/60Hz
- Optional 32 programmable relays
Available Gases
- Oxygen (O2), range 0-25%
- Carbon Monoxide (CO), range 0-250 ppm
- Hydrogen Sulphide (H2S), 0-50 ppm
- Nitrogen Dioxide (NO2), range 0-10 ppm
- Hydrogen (H2), range 0-2,000 ppm
- Chlorine (CL2), range 0-10 ppm
- Hydrogen Cyanide (HCN), range 0-25 ppm
- Nitrogen Oxide (NO), range 0-100 ppm
- Hydrogen Chloride (HCl), range 0-10 ppm
- Ammonia (NH3), range 0-100 ppm
- Ozone (O3), range 0-2 ppm
- Ethylene Oxide (ETO), range 0-25 ppm
- Flammable (LEL), range 0-100%
- Refrigerants, range 0-10,000 ppm
