Photoelectric Direct-reading Remote Reading Water Meter

The photoelectric direct-reading water meter adopts the coding direct reading technology. The working principle is that a special shape transparent groove is injected on the character wheel of the counter of the water meter, and the photoelectric sensor and the related circuit are fixed on the both sides of the character wheel；

When the meter is working, it is powered by concentrator or meter reader. The principle of photoelectric encode is adopted. Each character wheel is used as a code wheel, the electric level changes caused by the infrared light emitted from the transparent groove on the wheel by the five infrared receiving tubes constitute a group of five digits, after decoding, it is transmitted to the concentrator or meter reader.

Main working parameters：

v  Working power supply：DC24V-36V；

v  Port：M-bus or RS485（optional）；

v  Comm. protocol：CJ/T 188（default）or DT645、modbus or cutomization

v  Comm parameter：Baud rate 2400/4800   8，e，1（optional）；

v  Static current：<2mA；

v  Meter reading current：<20mA；

v  Flow resolution for remote reading:  1 Ton；

v  Protection Class is IP68 for the electronic devices in the meter；

v  DN15-DN32 4 digitals for direct-reading, above DN40 is 5 digitals for direct-reading；

v  Data cable length is 0.7-2m (optional)；

v  Max permissible working pressure：1.0MPa；

v  Electromagnetic environment class：E1；

v  Accurate class: Class B

  Flow parameters：