1、 Purpose:： Used to measure the total amount of drinking water flowing through the tap water pipeline and throughRS485/M-BUS bus transmission to secondary instruments.
2、 Characteristics：Built in CPU, storage chip, and RS485/M-BUS communication module. Just need to supply power when collecting water meter data, powered by a photoelectric tubeRead the water meter character wheel code, generate a number through CPU judgment, and output it through RS485/M-BUS busAnd it has a switch valve function.

3、 Signal type:4-digit photoelectric coding

4、 Usage conditions：cold water≤50℃，hot water≤90℃ And>0℃

Water pressure≤1Mpa

FiveMaximum allowable error：

·Including * small traffic（Q₁）Including but not including boundary flow（Q₂）The maximum allowable error in the low zone is±5%.

·Including traffic（Q₂）Including overload flow（Q₄）The maximum allowable error in the high zone is (cold water meter)±2%.

6、 Installation requirements：·Water meter installation must be horizontalInstall the water meter with the number reading facing upwards in the direction of the arrow and the direction of the water flow.

·Before installing the water meter, the pipeline must be flushed.

·The water meter must be installed in a dry environment for easy disassembly and maintenance. It is recommended to install it in a dedicated water meter box. Valves must be installed before and after the water meter.

7、 Signal wiring

8、 Main technical parameters

Temperature level:T30

Pressure level:MAP10

Pressure loss level:Δp63

Sensitivity level of upstream flow field: U10

Sensitivity level of downstream flow field: D5

Climate and mechanical environment level:Grade B

Electromagnetic environment level:E1 level

Unmeasurable reverse flow
9、 External dimensions

10、 Electrical parameters