1、 Overview

This electromechanical synchronous sensor can be widely used in ordinary wet water meters without changing the structure of traditional wet water meters, affecting the measurement accuracy and sensitivity of traditional wet water meters. After the service life of the water meter expires, only the base meter of the water meter needs to be replaced.
Using decimal code technology, it can more accurately read the mechanical position data of the code wheel. It is a non-traditional photoelectric reading method for water meter character wheel position data, without the problem of character wheel 0 and 9 carry, critical state and fuzzy state. The reading accuracy is 100%, and wired and wireless methods can be used to achieve remote transmission function.
Electronic components are installed in independent fully sealed chambers, with superior waterproof performance and no light interference issues. The production process is extremely simple, making it more suitable for large-scale and standardized production.

2、 Functional Features

1. The decimal code disk decoding technology does not have a carry problem between 0 and 9;
2. Wordless wheel display, not affected by external light interference, more accurate readings, measuring accuracy up to 0.1m ³;
3. Fully sealed structure, not affected by external humid environment, superior waterproof performance;
4. Split design makes installation and maintenance simpler and more convenient;
5. After the service life of the water meter expires, only the base meter of the water meter needs to be replaced;
6. The program can be upgraded online.

3、 Technical indicators

1. Working voltage: DC 9-24V（RS-485）； DC24-42V（M-BUS）；
2. Working current: Meter reading current: M-BUS module ≤ 15mA; RS-485 module ≤ 10mA;
Static current: M-BUS module ≤ 1.3mA; RS-485 module ≤ 0.7mA;
3. Working environment: Temperature: -20 ℃~70 ℃; Humidity: 0-95% RH;
4. Communication method with the upper computer: a) RS-485 fieldbus;
b) M-BUS fieldbus;
5. Transmission rate: 1200bps/2400bps/4800bps/9600bps;
6. Communication protocol: internal DL/T645、CJ/T188、MODBUS、 Industry standard or user specified regulations;
7. Bus pin ESD protection exceeds 10kV (non-contact);
8. The maximum distance for communication transmission is 1200 meters.