Aspirated Sensor Units
Product Overview
Designed with occupational health and safety in mind, the ASU is leading the way in enhancing personnel safety and wellbeing management
With the ASU located at 1.5m above floor level, either as a stand-alone unit or as part of a network system, a sample draw line continuously monitors from the target area.
Features & Benefits
- Engineers, architects and consultants no longer have to compromise in their preferred and most effective detector location
- Improved safety - avoids working at height and confined space regulations
- Significant reduction in engineering time required on site without disruption and downtime around operational areas
- Ease of locating and identifying detectors
Aspirated Sensor Units Designed with occupational health and safety in mind, the ASU is leading the way in enhancing personnel safety and wellbeing management. With the ASU located at 1.5m above floor level, either as a stand-alone unit or as part of a network system, a sample draw line continuously monitors from the target area. With specialist maintenance safety equipment no longer a requirement and a consistent working height for the operator, the ASU reduces the whole bill whilst significantly improving worker safety.
| PUMP/FLOW MONITOR | ASU-1 | ASU-2 |
| Input | 24v DC ±20% 70mA | 24v DC ±20% 170mA |
| Flow Rate | 0.4~1.0 litres/min | 1~5 litres/min |
| Continuous Running | Pump Motor – 6 years expected Diaphragm – 3 years in air |
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| Pump ON/OFF – Option | Timed 1 min on 4 min off – jumper selectable | |
| Flow Fail Monitor | Green LED – normal operation Red LED – pipe blockage / pump fail (FF) Sounder – not less than 85dB @ 30cm |
|
| Outputs | Relay S.P.C.O 4Amp @ 24vDC – NE/ND Selectable (FF) output 5/15v DC Factory set – open drain |
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| Sample Line | Max Length – 50m, min 1m 6mm OD 4mm ID Material – nylon, polypropylene, PTFE |
Max Length – 100m, min 1m 6mm OD 4mm ID Material – nylon, polypropylene, PTFE |
| Couplings | In/Out – push fit – barbed, enclosure base/rear | |
| TRANSMITTER | ||
| Type | Addressable (Network) / Direct | |
| Gases | Flammable Oxygen Toxic |
|
| Outputs | 4~20mA CANbus Others – Contact GDS Data logging – intervals – variable time Roll over / stop storage 2,880 readings |
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| Sensor | Electrochemical Infrared Semiconductor Pellistor – Catalytic PID |
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| ENCLOSURE | ||
| Type | 30J Safe area use only | |
| Protection | IP64 | |
| Operating Temperature | -15°c to 55°c | |
| Relative Humidity | 0-95 non condensing | |
| Dimensions | H – 145 W – 147 D – 90 mm | |
| Material | ABS Flame Retardant FR40 Lid Screws M4SS | |
| Finish | Signal White RAL 9003 | |
| Weight – Finished Product | 520gms | 710gms |
| Entries – cable | Rear 5 x 20mm knock outs, Base 2 x 20mm knock outs | |
| MOUNTING/POSITION | ||
| The pump sensor unit should be mounted at chest height with the sample line travelling to the chosen target area at either maximum height for lighter than air gases or minimum low level (100mm) for heavier than air gases. |
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For a full list of related products available please contact us via email sales@gds-technologies.co.uk
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