AIRSENSE - Model GDA-S -Stationary Gas Detector Array

In addition to selectively handling chemical warfare agents (CWAs) our reliable GDA technology also identifies a range of hazardous and less hazardous volatile compounds. The GDA technology offers the possibility of detecting a very broad range of compounds in the gaseous phase.

The non-stop monitoring capability and broad detection range of the GDA-S provide a high level of security.

• Detection and identification of all the main hazardous gases and chemical warfare agents within seconds
• Hybrid Sensor Array: Unique combination of different detectors (IMS, PID, EC, MOS)
• Dependable alarm concept
• Alarm and communication interface
• 24/7 operation / data stored
• Internal sensor protection system
• Easy to install
• Database is expandable
• Outdoor operation

Supervision on Critical Infrastructure Detector for hazardous gases and chemical agents
The Gas Detector Array Stationary version is a continuously operated chemical agent detection system. It is used to supervise sensitive public structures, buildings and workplace areas.

The benefit using GDA technology is, that not only chemical warfare agents (CWAs) are selectively supervised but also the whole range of hazardous and less hazardous volatile compounds can be supervised since GDA technology offers the possibility to detect a very broad range of compounds in the gaseous phase.

The GDA-S version has been developed on the basic idea of combining several detection principles in order to achieve:

• a broad detection range and thus giving a high level of safety
• improved specifity through combined sensor responses can be used for library comparison.

The changes of the specifications made for the stationary GDA are:

• Fail safe flow system (e. g. pumps allowing long term continuous operation, redundancy included)
• Maintenance interval designed to be 1 year
• Connectivity - personal computer connectivity offers all common kind of data interfacing
• Adaptable library system

The detector is rugged, reliable and dependable, even operating in adverse environments, but quickly and easily maintained at yearly service intervals.

Sampling

• System: continuous vapor sampling through internal pumps, internal sample dilution system
• Recovery time: less than typically 5 min
• Measurement time: seconds to less than 1 minute (depending on the compound)

Operation Principles

• Detection principles: Orthogonal technology for improved interferent rejection
• Ion Mobility Spectrometer (Ni63 ion source, positive and negative mode)
• Photo Ionization Detector (10.6 eV)
• Electrochemical Cell
• 2 Metal Oxide Sensors
• Modes of operation Agents detected: GDA mode for hazardous compounds and chemical warfare agents nerve, blister, blood & choking agents, toxic industrial chemicals, data base is expandable
• Identification: based on pattern recognition methods, individual alarm thresholds are possible

Environment Requirements

• Temperature: typical: 0ºC to +50ºC
• Humidity (relative): 5 % to 95 %, non-condensing

Power Requirements

• Main power: 30 W, powered by power supply of 100 – 240 Volt
• Battery back-up:
• Operation on Backup Battery
• Battery to be recharged by internal charging circuit (UPS)

Communication

• Computer interface: Internal IPC

Devise Control / Data Handling

• Operating system:
• Windows XP, Vista, Windows 7
• Software WinMuster GDA-S

Safety Class

• Compliant to EN50270 /1999 / type 1 & 2 device

Warranty

• 12 months

• Public Security