QA3000 Vehicle Gas Alarm System Operation Manual
Adopting high quality gas sensor and advanced electronical technology, QA3000 vehicle gas alarm system has the advantages of excellent performance, lower consumption, easy operation and maintenance. It is widely used in gas powered taxi and bus, so as to avoid fire emergency or explosion due to gas leakage.
Technical Data:
|
Model |
QA3000 |
|
Gas sensor |
Semiconductor |
|
Detecting gas |
Natural gas, LPG |
|
Working voltage |
DC12V+/-1V |
|
Working condition |
Temperature: -40oC-70 oC Humidity: <=95%RH |
|
Storage temperature |
-40 oC-70 oC |
|
Pressure limit |
86kPa-106 kPa |
|
Consumption |
Alarming status <1W Non-alarming status <1.5 W |
|
Response time |
<=30s Auto resume |
|
Gas sampling |
Natural diffusion |
|
Detection range |
0-100%LEL |
|
Preset alarm value(1) |
10%LEL |
|
Alarm method |
Audio and visual alarming |
|
Audio alarm sound |
>=70dB |
|
Sensor life |
5 years |
|
Application |
Gas powered taxi and bus |
|
Weight |
Appr. 270g |
Note: (1) can be specified by the customer before the goods leaving the factory.
LED Indication:
Power LED: After electrifying, it will keep lighting, which means the detector is working.
Fault LED: If it is lighting, it means the detector is defective and without detecting function. Please contact the seller.
Alarm LED: When the detector gives alarming, it will light or flickers quickly until the gas concentration falls below the preset value.
Mute / Text Button:
This button is used to check the function of audio and video alarm. When there is no alarming signal, if push this button, fault and power LED lights are flickering and the buzzer gives sound. When the detector is giving alarming or in low voltage status, if push this button, audio alarm will be canceled. If either LED or buzzer is defective, please repair it in time, so as to avoid missing any alarm signal.
Wire Connection and Installation:
This alarm system is designed mainly for gas powered cars and buses use in the city.
For buses, the following is the installation position drawing:
(1) Rear engine (2)Gas bottle (3)Front engine (4) Rear area of the ceiling(5) Front area of the ceiling
If the bus is twin-layer, the quantity will be more.

For taxies, the following is the installation position drawing: (1) Gas bottle (2) Engine

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