Vehicle-Mounted Gas Leakage Detector

CCLL9518-T. K2 Type-Gas Vehicle gas leakage alarm
(Applicable to large trucks and buses)
Operating voltage: 24V± 50%
Working Current: ≥ 0.8A,
Environment temperature: -40~80º C
Detector quantity: 4-8PCS
Normally we use four detectors for
General passenger buses

One is for front carriage (No. 1 position), One is for latter carriage (No. 3 position), one is for gas cylinder (No. 7 position), and one is for engine (No, 8 position). For long car, double-layer buses or multi-location gas cars, the quantity of detectors can be increased. The reserved interfaces are as following(No. 1position)(No. 4 position) for the internal detectors in carriage. (No. 6 position) gas cylinders reserved detector Interface.
Type of Gas Alarm concentration
Natural Gas 7000ppm ± 3%LEL
Liquefied petroleum gas 2000ppm ± 3%LEL
Hydrogen 500ppm ± 3%LEL
H CO According to H, CO tothe proportion

2 Operation
2.1Normal alarm: This system will automatically enter the monitoring state without any action as soon as it connect power, For normal alarm the controller will send a intermittent call, while an alarm position indicator flashes, it means that the concentration of gas exceed standard, if the alarm continue for more than a certain time after the control module to work (Figure 4 of light from green to red). To turn off the gas valve or change into Fuel conditioning automatically(depending on connection location). Please check the leak source and find the causes of leakage, Restoring normal conditions automatically after the alarm stops.
2.2 Fault Alarm; This device has a failures self-checking system, if the detector cable bad or the sensor in detector open circuit, short circuit, the controller will send intermittent sound, at the same time, Figure 4 the fault indicator light flash, to observe the location of alarm lights, the lighting position is the fault location. Please check your connection cable, if the connection is not wrong, replace the detector.

2.3Mute; Press the mute key <> the alarm sound is prohibited, until the next alarm. See Figure 3.
2.4 Reste; If the car is disturbed by an outside interference (such as the exhaust of other vehicles, gas input time) and cause the alarm. When you are sure the leakage is not from your car, press the reset key <> so that control module to stop working for 3-5 minutes. At this period of time drive the vehicle out of the scene. See Fig. 3.
Do not unplug detector when it is connecting power! It will damage the controller!