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Wall-mount type of Air Quality Detector 

Model: GTF300-AQ and GTF300-VOC

 

GASTECH is a professional manufacturer in various gas detectors, carbon monoxide detector, carbon dioxide detector, 
oxygen detector, odor detector, VOC detector, hydrogen sulfide detector and carbon monoxide detector. Welcome tour 
our website 

www.gastech.com.tw 

Installation and Wiring

 

1.

 

Please read the Security Notifications in detail firstly.

 

2.

 

The gas detector might install on wall or steel plate, please refer following drawing to make marking then drill 
the holes. Do not use the gas detector as a drilling template to avoid fault.

 

 

 

3.

 

Due to the space is very small that is impossible to use wrench. Therefore, to use female expansion bolts on the 
wall or tap female screws on the steel plate and use external screw (male bolts) that can use the screw driver to 
install the gas detector and solve spacing problems. M6 sizes of bolts have a good tolerance than W1/4. 

 
 
 
 
 
 
 
 
 
 

Содержание GTF300-AQ

Страница 1: ...ad the Security Notifications in detail firstly 2 The gas detector might install on wall or steel plate please refer following drawing to make marking then drill the holes Do not use the gas detector as a drilling template to avoid fault 3 Due to the space is very small that is impossible to use wrench Therefore to use female expansion bolts on the wall or tap female screws on the steel plate and ...

Страница 2: ...te www gastech com tw 2 4 Analog output A recommend fuse is 0 2 A in the above 5 Relay output A recommend fuse is 0 2 A the diode could be 1N4002 or 1N4004 in the above 6 In order to meet waterproof the wiring material and parts should be met the requirement also 7 The wiring size is not less 0 5 mm 2 or 20 AWG In the case of long distance wiring to apply bigger size or 30 VDC power is better 8 Th...

Страница 3: ...t sensor Semiconductor target GTF300 AQ hydrogen ethanol isobutene etc GTF300 VOC toluene xylene alcohol ammonia etc sampling method diffusion measure range 1 200 CIAQ Composite Index of Air Quality Refer GASTECH calibration curves or make them by user Resolution accuracy sampling time 1 CIAQ continuity alarm level high alarm resetable analog output 4 20 mA max load resistance 500 ohm N A relay ou...

Страница 4: ...concentration of hydrocarbon compounds and hydrogen in the air the more pollution exists the higher CIAQ will show 2 Settings The following operating procedure describes the settings In the operation press NEXT key or idle 3 minutes the display will back to the CIAQ In the display press NEXT key to enter next function In the display press ADJ key the buzzer and flash lamp will action Press ADJ key...

Страница 5: ...enter calibration function Press NEXT key to jump calibration function and enter next function Warning Except necessary do not execute calibration It is necessary to execute calibration after power on 7 days An error operating should loss accuracy In the display user has to finish calibration Press ADJ key to meet ambience CIAQ In the fresh air 1 is a recommended value But in some place user might...

Страница 6: ...uzzer high limit the detector not only has audible alarm but also provide clear alphanumeric alarm message for users It is the CIAQ high alarm display Press NEXT key the buzzer will mute and the display will back to the normal display If the CIAQ is still higher than buzzer high limit this message and audible alarm will come again that will disappear until the CIAQ is lower than the buzzer high li...

Страница 7: ...e of scent sense good but some persons might not accept the smell Although everybody has various different sense of smell that cannot define Anyway the smell depends on the concentration of hydrocarbon compounds in the air 5 2 Smoke detecting GTF300 AQ VOC is very sensitive of hydrogen which generated from smoking or incomplete combustion Therefore GTF300 AQ VOC is suitable for air conditioner man...

Страница 8: ...fusion or high concentration that out of CIAQ range dilute detection is possible put GTF300 AQ VOC in the bottle and takes the sample gases then inject bottle and read the CIAQ Neither diffusion or dilute Silicon compounds gases is not suitable to use GTF300 AQ VOC e g SiH4 5 6 The best partner of canary People knew apply canary to detect unknown gas or toxic gas since long ago Canary will die whi...

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