The 485 remote reading water meter is an intelligent cold/hot water metering device with an RS485 communication interface. The 485 remote reading water meter is mainly used for remote meter reading and monitoring of water consumption in industrial control and energy consumption monitoring platforms. It adopts 485 output mode and Modbus protocol, facilitating integration with configuration software. The 645 protocol is convenient for users who utilize remote transmission for electricity meters, and the unified protocol reduces the number of collectors and concentrators required. Therefore, 485 is a physical interface, a simple hardware component, i.e., a communication interface.

Depending on the usage habits of different users, remote reading water meters with various transmission protocols are provided to facilitate user integration with collection devices and systems.

The wired remote control valve water meter is a self-developed product designed to meet the practical needs of daily water usage, enabling remote meter reading and control. It uses an M-Bus communication interface to achieve remote direct reading of water consumption, effectively avoiding the need for management departments to conduct on-site meter readings. This facilitates the management department's control over water usage, making remote meter reading and control faster and more reliable. It saves manpower, material resources, and financial costs while effectively improving productivity.

This wired remote control valve water meter complies with the requirements of "Measurement of Water Flow in Closed Conduits—Cold Potable Water and Hot Water Meters" GB/T 778-2007, "Safety Rules for Cold Potable Water Meters" CJ 266-2008, "Verification Regulation for Cold Water Meters" JJG 1162-2009, "Residential Remote Meter Reading System" JG/T 162-2009, "Technical Conditions for Data Transmission of Household Metering Instruments" CJ/T 188-2004, "Electronic Direct Reading Water Meters" CJ/T 383-2011, "Electronic Remote Transmission Water Meters" CJ/T 224-2012, or "Multifunctional Electricity Meter Communication Protocol" DL/T 645-1997. Custom communication protocols can also be developed based on customer requirements.

2. Product Features

- Equipped with anti-bubble technology, ensuring a high success rate for meter reading data.

- Resistant to external strong magnetic interference, with excellent anti-interference performance.

- Fully sealed design, providing good waterproof performance.

- No power supply required for daily operation, ensuring a long service life.

- The remote reading water meter uses encoding and M-BUS communication methods, ensuring stable signal transmission. The current required for reading is directly supplied by the M-BUS bus, eliminating the need for an external power source. This enables fast meter reading with more accurate and reliable data.

- The remote control water meter enables prepaid functionality and open/close valve operations through system software.

3. Main Product Functions

3.1 Metering Function

The water meter can measure unidirectional, non-pulse water flow.

3.2 Centralized Meter Reading Management System Function

Allows configuration of meter numbers and reading/writing of usage data via a PC using RS232 communication, with a baud rate of 2400 bps.

3.3 Anti-Tampering Self-Protection Function

When magnetic interference is detected, the water meter automatically closes the valve and records the interference information. Once the interference disappears, the valve automatically opens, and the magnetic interference information is updated.

3.4 Low Battery Voltage Alert Function

The water meter supports two levels of low-voltage alerts. At the first level, users are reminded to contact the management department to replace the battery, allowing continued use for three days. After three days, the valve locks. Data is stored in real-time within the meter, and battery replacement does not damage the stored data.

3.5 Water Consumption Display

The mechanical metering display remains unchanged, with an electronic and mechanical error rate of less than 0.01%. The electronic components do not interfere with mechanical readings or affect meter verification.

3.6 Wide Coverage Using GSM Network

Utilizes mobile networks, enabling monitoring within the coverage of wireless GSM/GPRS networks. In areas with poor GPRS signals, mobile signal amplification devices can resolve signal issues, ensuring reliable monitoring.

Easy installation, identical to standard base meter installation methods, without altering existing water meter installation habits.

3.7 Customizable Data Transmission Frequency and Timing

Remote meter reading eliminates the need for入戶 (entering homes). Data upload times can be customized, such as several times per month, with freely definable timing for each upload. Work cycles can be set, supporting scheduled reporting of meter information by interval, day, month, or staggered by ID tail number.

3.8 Water Meter Clock Requirements

The mainboard clock automatically synchronizes, maintaining alignment with the server.

3.9 Built-in Check Valve Function

Effectively prevents self-rotation of the water meter caused by unstable water pressure or air pockets.