How to open the gas meter valve?

There are also several types of natural gas meters. One is an ordinary gas meter, which means that it is not allowed to install batteries, and only has a mechanical counter. Then there is no valve inside this meter. If you want to turn off the gas, you must use gas. Valves before or after the table.
The other is an intelligent gas meter with a liquid crystal display, and a valve must be installed. Generally, this meter is prepaid, then there is a valve inside the meter, and if there is remaining gas in your meter, The valve is always open, and the valve will automatically close if there is no remaining gas in the meter. At this time, you must recharge to open the valve. At the same time, if you really need to close the valve, you can remove the battery. At this time, the valve in the watch will also be closed.
There are two conditions for the alarm: 1. Leakage 2. False alarm.
If no leak is found after self-check, it is a false positive.
There are two general causes of false alarms:
1. Methane is mixed in the air in the place (general cooking wine will evaporate a small amount of methane), the probe sensitivity is too high.
2. Equipment problem (the service life is over or the equipment is broken). If your situation is that the gas shut-off valve does not automatically cut off the gas after the alarm, and you can continue to use it, please call the natural gas company to replace the alarm component. If the valve is automatically closed after the alarm, you can use it normally after you manually open the valve. Initially check whether there is gas leakage in the home, methods include ear listening for airflow, nose smelling, smelling bubbles after applying soapy water, avoid open flame test leak, if there is a leak, immediately close the main valve, open For window ventilation, contact the gas company for assistance.