The ECBS002 photoelectric direct reading water meter with valve control is designed for centralized water metering and remote utility management applications in residential buildings, commercial facilities, and building management systems. Supporting RS485 and M-BUS communication interfaces, the meter combines remote meter reading and remote valve control functions for local deployment utility monitoring systems.
Adopts photoelectric encoded direct-reading technology for stable and accurate meter data acquisition.
Integrated valve control function supports remote water supply control through the management system.
Supports RS485 and M-BUS communication interfaces for centralized meter reading systems.
Dry dial structure maintains long-term readability and operational reliability.
Non-contact sensing technology does not affect the metering mechanism or measurement accuracy.
Power is consumed only during communication and data reading operations.
Supports CJ/T188-2004, DL/T645-1997, and Modbus communication protocols.
Can be integrated into centralized utility metering and building monitoring systems.
| Model | ECBS002 |
| Maximum Permissible Error | ±5% (Q1-Q2) ±2% (Q2-Q4) |
| Communication Interface | M-BUS / RS485 |
| Communication Protocol | CJ/T188-2004 / DL/T645-1997 / Modbus |
| Cold Water Temperature | 0°C ~ 30°C |
| Hot Water Temperature | 0°C ~ 90°C |
| Working Pressure | ≤1MPa |
| Pipe Diameter | 15mm ~ 40mm |
| Communication Baud Rate | 1200 / 2400 / 4800 / 9600bps |
| Communication Distance | ≤300m |
| Operating Current | M-BUS: 1.0–1.3mA RS485: 0.6–0.8mA |
| Operating Voltage | DC36V (M-BUS) DC12–24V (RS485) |
| Minimum Data Storage Time | Unlimited |
| Electromechanical Conversion Error | ≤ ±1 Minimum Conversion Scale Value |
| Valve Control | Integrated Valve Control |
| Installation Direction | Install horizontally with dial facing upward. Vertical meters should be installed vertically. |
| Flow Direction | Installation direction must follow the water flow arrow indication. |
| Pipeline Preparation | Flush the pipeline before installation to remove debris. |
| Installation Environment | Install in a dry environment with convenient maintenance access. |
| Recommended Installation | Installation inside a dedicated water meter box is recommended. |
| Valve Requirement | Install valves before and after the meter for maintenance convenience. |
| M-BUS Wiring | Standard two-core cable without polarity. |
| RS485 Wiring | Standard four-core cable with separate power and signal transmission cores. |
| M-BUS Cable Type | RVSP 2×1.0 mm² Shielded Twisted Pair Cable |
| RS485 Cable Type | RVSP 4×1.0 mm² Shielded Twisted Pair Cable |
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