How about the magnetic card water meter? How to change the battery of the magnetic card water meter?
How to read the magnetic card water meter
1. "M3" means unit of measure (cubic meter)
2. The scale of the "red meter" indicates the metering reading after the decimal point. Below the table are four meters of 0.10.010.0010.0001. When the party's water meter displays 6655 in the "red meter", it means that the reading of the water meter is 10.6655 tons.
3. Don't care about the red wheel, starting from x1, x10, x100, x1000, they are units, tens, hundreds, and thousands. For example, the x1 gear is 5, the x10 gear is 2, and the x100 gear is 3. Then the reading is 325. Each gear is read every small time. For example, if the needle of the x10 gear is on the side of 3 but not reaching 3, then read 2, and the other gears are the same.
Magnetic card water meter change battery, water meter
The water meter has a round cap (decorative cap) that needs to be pryed out along the edge with a blade. If you don't care about the appearance, you can open it violently. After opening it is a large Phillips screw, open it with a flat-blade screwdriver to see the battery.
Remember that there are round covers on both sides of the water meter, and the one on one side will make it easy to remove the battery and plug.
Remove the battery, unplug it, and replace with a new battery. Insert the card after changing the battery.
See if it can be read normally, if not, unplug the battery and install it again and try a few more times.