Operation of flammable gas leak detector:
1. Turn the thumbwheel down in a clean environment (fresh air) to turn on the instrument.
2. When the device is turned on, the green power LED will light up. If the battery is low, the red LED will be solid, the twitch rate will not be adjustable at this time, and the battery needs to be replaced.
3. Use the thumbwheel to adjust to slow down the uniform twitch rate (approximately 2 twitches per second). This action will return the instrument to the default level. Start the test by placing the instrument in fresh air. The red LED indicator will flash with the twitch rate. Wait about 10 seconds for the twitch rate of the instrument to stabilize. (It takes up to 2 minutes to stabilize).
4. When exposed to gas, the instrument emits an audible twitching sound. The audible twitch rate increases when exposed to gas concentrations of 50 parts per million or higher. When gas is detected, the twitch rate will increase, at which point turning the thumbwheel back to the steady twitch rate resets the instrument to the new default level. Move the instrument to a higher concentration of gas (twitch rate will increase) until a leak is found.
5. The "top light" is used to view the area around the leak in a dark environment.
6. When using this instrument in a noisy environment, please observe the red LED, etc., its blinking rate will increase as the twitch rate increases. If there is too much background noise or the operator does not want to disturb other people, the optional earphone can be plugged into the side of the instrument with the speaker disabled.
7. If the twitch rate becomes uncontrollable, the sensor may need to be replaced.
8. The detector will respond to some leak detection schemes (soap), so the detector should be used first. If overexposed to certain gases, it may take longer for the detector to return to normal.
