Fixed Gas Detector

GDS 306 Sequential Gas Sampling System 1-20 Way

GDS 306 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.

  • Flammable Gases
  • Refrigerant Gases
  • Toxic Gases
  • 1-20 sample points
  • No sample line purge delay
  • Wide range of sensor types
  • 4 line alpha/numeric display
  • Selectable sample line sequence
  • Display of each sample line location
  • Easily installed and maintained
  • Full indication of all operations
  • Event logging/Modbus/RS232/RS485
  • Line blockage and pump fail monitoring
  • Variable sample time for optimum cycle time
  • Monitor up to 2 gas types, 4 as special build
  • High integrity, comprehensive self check fault monitoring
  • Centralised one man calibration offers minimum running costs
  • Split system operation optional
  • Remote control panel – optional
  • Line blockage, blow back optional
  • Hazardous area operation – optional
  • Auto flood cut off – optional
  • Enclosure internal gas monitoring with automatic system shutdown – optional
  • Sample line multiplier optional

About this product

The GDS GasVac 306 is the mid-size sequential sampling system: it draws air in turn from up to 20 sample points to one central unit and measures up to 2 gas types, or 4 as a special build. It sits between the GDS 301, which watches a single line continuously, and the GDS 305, which handles up to 48 points and 8 gas types. We supply, install, commission and service all three.

Key specifications

Sample points1 to 20, sampled in sequence
Gas typesUp to 2 (4 as special build): flammable, toxic, oxygen, refrigerant
Sample lines6 mm OD / 4 mm ID, up to 100 m; nylon, PTFE, stainless steel or copper
RelaysGlobal low, global high, global fault, flow fail, cabinet gas, power fail, all SPCO; optional 32 relay board
Outputs4 to 20mA per sensor, RS232, Modbus RS485
Power230 or 115V AC, 50W max
EnclosureIP64, 450 W x 400 H x 200 D mm, 20 kg

Supplied, installed and serviced by Vistec

We supply, install, commission and service this equipment across Ireland. Call 01 289 7720 or email info@vistec.ie for advice or a quote.