Prepaid Water Meter

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WESDOM

Henan, China

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Description of Water Meter

This is a prepaid smart water meter that can control a limited water supply. It can pay the fee first and then use the water. Please read this manual carefully before use, so as to use it to the best advantage and avoid unnecessary loss.

Composition of Water Meter

It is composed of a Valve ball, antenna, calculator, pipe fittings, etc., detailed as follows.

Notices for Installation of Water Meter

Flush pipes before installation to avoid gravel and other foreign objects;
Install a valve and filter before the water meter;
Please note that the arrow direction on the pipe shall be consistent with the water flow direction during installation;
The joint washer shall be installed correctly to avoid misaligned washer blocking water and affecting the accuracy of the water meter;
The water meter shall not be installed at a place that may be affected by strong mechanical vibrations;
Do not touch the electrical part or pull wires to avoid damage during installation;
Reserve an adequate space for maintenance during installation;
When the water motor is installed in a horizontal or inclined way, the ultrasonic flow probe on pipes shall be placed horizontally, and when installed in a vertical way, make sure the water flows from down to up.

Special Notices: 1. Be sure to install an on-off valve and filter before the water meter and another on-off valve is recommended after it for maintenance. In order to prevent backflow, a check valve should be installed in front of or behind the water meter.

Installation Figure of Water Meter

Before using this water meter, the pipe must be filled with water, otherwise, it will lead to inaccurate or even non-measurement.

When installing the water meter, a should be reserved length of DN*10 in front of the water meter. Or should be reserved the length of DN'S behind the water meter?

The water meter shall refresh the display at every 4s, and read the water meter (including the starting value and end value) 4s at least after the valve is closed when the test

the water meter, otherwise the testing results may be affected;

Please make sure the medium flow is within the flow range of the water meter during test and use, otherwise, it may result in damage to the water meter;

In case of any malfunction (e.g. metering failed, etc.) during use, please contact the related management department immediately and do not repair it by yourself;

The product is designed with a disposable anti-disassembly seal which shall be removed only by appointed personnel, or otherwise, it shall be excluded from the free after-sales service.

                                                            Size
                                                            DN15-DN25
                                                        
                                                            Measuring range
                                                            R100
                                                        
                                                            Flow range
                                                            Q1-Q3 ( Q4time work not change error)
                                                        
                                                            Ambient temperature
                                                            5C-55 C
                                                        
                                                            Pressure loss
                                                            less than or equal to 0.063MPa