The GDS 305 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, Bio-fuel storage compounds.
The GDS GasVac 305 is the largest GDS sequential sampling system: it draws air in turn from up to 48 sample points to one central unit and can measure up to 8 gas types. Choose it over the GDS 306 (up to 20 points) when a site has many monitoring points, or the GDS 301 when one line is enough. We supply, install, commission and service all three.
| Sample points | 1 to 48, sampled in sequence |
|---|---|
| Gas types | Up to 8: flammable, toxic, oxygen, refrigerant |
| Sensors | 1 to 4 direct (electrochemical, infrared, specials); 1 to 8 CAN sensors optional |
| Sample lines | 8 mm OD / 6 mm ID, up to 200 m; nylon, PTFE, stainless steel or copper |
| Relays | Global low, global high, global fault, flow fail, cabinet gas, power fail, all SPCO; optional 2 x 32 relay boards |
| Outputs | 4 to 20mA per sensor, RS232, Modbus RS485 |
| Power | 230 or 115V AC, 300W max |
| Enclosure | IP64, 600 W x 800 H x 350 D mm, 65 kg |
We supply, install, commission and service this equipment across Ireland. Call 01 289 7720 or email info@vistec.ie for advice or a quote.
© 2026 Vistec Gas Detection Ltd
Descriptions
