Photoelectric Direct Reading Water Meter
The photoelectric direct reading water meter is a smart water meter developed for the measurement and management of daily water consumption, which is convenient for remote meter reading and management. It adopts RS485/M-BUS bus system communication to realize remote direct reading of data. Effectively avoid the management department to read the meter. It makes remote meter reading simple, convenient, and reliable, which effectively improves productivity while saving manpower, material, and financial resources.
The photoelectric direct reading water meter is a photoelectric direct reading module installed based on the dry water meter. The photoelectric direct reading module is mainly composed of photoelectric sensor, single chip system and RS485/M-BUS communication circuit. Its working principle is to use infrared transmitting tube and infrared receiving tube, and the word wheel opens light-transmitting slot holes according to coding rules. When the character wheel is in a certain position, a group of codes is obtained according to the light transmission and opacity of the character wheel, and each number corresponds to a group of codes. The single-chip microcomputer quantifies the signal received by the light-sensitive and completes the coding task. The total amount for this time is displayed on the dial. The water quantity can also be read by M-BUS/RS485 communication circuit.
Features:
1. Due to the direct reading of the word wheel data, compared with the traditional pulse remote water meter, there is no need to set the base of the meter. There is no accumulated reading error, and the mechanical reading and the meter reading are completely consistent. There is no inconsistency between the two readings due to accumulated errors or reversed water meters.
2. With a low-power design, power is only required for reading.
3. Adopt advanced data coding and verification method, high communication reliability.
4. Combined with the host computer system, a remote automatic meter reading management system is established to truly realize meter reading and management automation.
5. The electronic reading device does not affect the metering accuracy of the meter.
6. Each meter has a unique address code, bus system connection, simple wiring.
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