Photoelectric Direct-reading Wired Remote Water Meter (Small Diameter)

Photoelectric Direct-reading Wired Remote Water Meter uses electronic remote transmission technology to directly read character wheel data.

Features

Double protection of structural sealing and potting glue sealing, with IP68
Mechanical and electrical separation structure design for convenient later maintenance

Applications

Agricultural, Residential, Industrial

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Features

LoRa Smart Water Meter with Split Electronic Design

Adopting LoRa communication technology, the water meter transmits key data such as flow rate, battery voltage, and signal strength to the meter reading system via a concentrator, enabling efficient data collection, remote control, and fault alarm functions. Its split structure features an independently sealed electronic unit, ensuring stable operation while maintaining the structure and measurement accuracy of traditional wet-type water meters.

LoRa wireless communication technology, point-to-point networking mode, supports multi-level relay mode for meter end and repeater networking
Fault alarm: supports low battery alarm/magnetic interference alarm/valve abnormality alarm
The system can perform real-time meter reading and valve control without operation lag issues
Open straight-line communication distance of 1km, which can be extended to about 5km through relay equipment

Tech Specs

Base Meter Type	Rotary Type				Turbine Type
Nominal diameter (DN), mm	15	20	25	32	40	50	80	100	150	200
Permanent Flow Rate (Q3), m³/h	2.5	4.0	6.3	10	16	40	63	100	250	400
Measurement Range (Q3/Q1)	R 100				R 100 / R 160 / R 200
Max. Pressure	MAP16
Pressure Loss	ΔP63 (≤0.063MPa)
Working Temperature	Cold Water Meter (T30): 0.1℃~30℃ Hot Water Meter (T90): 0.1℃~90℃
Flow Profile Sensitivity	U10/D5
Communication Method	Wired: M-BUS/RS485
Communication Protocol	CJ/T188, DL/T645, Modbus (Optional)
Installation	H
Environmental Class	Class B
Electromagnetic Compatibility	Class E1
Waterproof Rating	IP 68
Working Voltage	RS485 interface: 7V-12V M-BUS interface: 24V~36V
Case Material	Ductile Iron/Copper

Parameter Interface	M-BUS Bus	M-BUS Bus	485 Bus	485 Bus
Baud Rate	1200	2400	4800	9600
Protocol	645	F188	T188	MODBUS-RTU
Address Code	645	F188	T188	MODBUS-RTU
Dial Indication	Last 8 Digits	Last 12 Digits	Last 12 Digits	Last 2 Digits
Voltage	Direct Current	12V	24V	36V

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Installation Dimensions

(DN)	L (mm)	H (mm)	W (mm)	Connecting Thread d	Connecting Thread D
DN 15	165	130	85	R 1/2	G 3/4B
DN 20	195	130	85	R 3/4	G1B
DN 25	225	137	95	R1	G1 1/4B
DN 32	230	150	104	G1 1/4	G1 1/2B
DN 40	245	267	124	G1 1/2	G2B

DN (mm)	L (mm)	H (mm)	Flange Outer Diameter D (mm)	Bolt Hole Center Circle Diameter (mm)	Connecting Bolt and Quantity
WPH40	200	200	150	110	4-M16
WPH50	200	200	165	125	4-M16
WPH65	200	220	185	145	4-M16
WPH80	225	280	200	160	4-M16/8-M16
WPH100	250	290	220	180	8-M16
WPH150	300	320	285	240	8-M20
WPH200	350	364	340	295	8-M20/12-M20
WS40	245	220	G1 1/2 (Thread Connection d)	G1 1/2 (Thread Connection d)	G2B (Thread Connection D)
WS50	280	228	165	125	4-M16
WS65	300	238	185	145	4-M16
WS80	370	290	200	160	4-M16/8-M16
WS100	370	306	220	180	8-M16
WS150	500	445	285	240	8-M20
WS200	500	564	340	295	8-M20/12-M20