Principle Introduction：

In response to the main issues with current wet direct reading water meters, the company has addressed them throughInnovation of Direct Reading Principle(Invention Patent: 201210089537.0),Adopting an "angular displacement sensor", which means that angle sensors corresponding to the coaxial line of the reading digital wheel axis are installed between each character wheel of the water meter counter, and are identified through the angle sensorswet-typeThe current position of each character wheel in the water meter counter; Innovating the structure of wet water meter counter（Patent: 201210051124.3），The letter wheel box of the header is equipped with mutually sealed letter wheel chambers and chambers and grooves for installing circuit boards;This scheme is completely based on the drawbacks of abnormal sampling data caused by bubbles, water seepage, scale, etc. in the wet photoelectric direct reading scheme.

characteristic:

■ zeroError:Read the number wheel360Full circumference measurement, measurement resolution depends on the actual accuracy of analog-to-digital conversion, reading accuracy100%There is no critical state or fuzzy state, no pulse cumulative error or visual error.

■ Passive direct reading:Usually no power supply is required, only power supply is needed at the moment of meter reading, with low failure rate and power consumption, and long service life.

■ Anti strong interference:Overcoming the problem of reading errors caused by reflection and refraction of light when the light path passes through bubbles in the liquid sealed medium of the water meter in the wet photoelectric direct reading scheme, completely overcoming the interference of strong light and strong magnetic fields.

■ Ultra high reliability:The significant reduction of electronic components greatly reduces the risk of product failure caused by device malfunctions.

■ Waterproof grade:The entire table can be reachedIP68It is fully suitable for operating in harsh application environments such as meter wells.

■ Does not affect the measurement accuracy of the meter:The electronic device of the meter has no mechanical contact with the motion device of the meter counter, which does not affect the measurement accuracy and sensitivity of the original meter.

■ Electromagnetic compatibility:EMCThe test meets the national standard requirements and overcomes the problem of stability of direct reading water meters affected by external electromagnetic interference.

■ Remote control:Equipped with pre paid backend and optional valve control functions to meet various control needs.

■ Easy scale manufacturing:The simple production process is more suitable for large-scale production and standardized production.