Wired IoT smart water meter
LXSY-15~40

Product Introduction

This product is used to measure the total amount of drinking water flowing through the tap water pipeline and is wired（485/M-BUS bus）Transmit to collection devices and meter reading software. The characteristics of this product areBuilt in CPU, storage chip, and 485/M-BUS communication module. Just need to supply power when collecting water meter data, read the water meter character wheel code by the photoelectric tube, generate a number through CPU judgment, and output it through the 485/M-BUS bus.

Main technical parameters

Temperature level: T30
Pressure level: MAP10
Pressure loss level: Δp63
Sensitivity level of upstream flow field: U10
Sensitivity level of downstream flow field: D5
Climate and mechanical environment level: Grade B
Electromagnetic environment level: E1 level
Accuracy: Class B
Maximum allowable error: The maximum allowable error in the low zone from including the minimum flow rate (Q1) to excluding the boundary flow rate (Q2) is ± 5%
·The maximum allowable error in the high zone, including flow rate (Q2) and overload flow rate (Q4), is (cold water meter) ± 2%

Nominal diameter mm	Accuracy level	Common traffic Q3	Minimum reading	Maximum reading
		m3/h	m3
15	Q3/Q1=80、63、50 Q2/Q1=1.6 Accuracy level: Level 2	2.5	0.001	9999
20		4	0.001	9999
25		6.3	0.001	9999
40		16	0.001	99999

Signal wiring

Line color type	red thread	Black line	White (yellow) line	Blue (green) line
485/bus	Power supply positive	Negative power supply	485+	485-
meter-bus	Regardless of polarity	Regardless of polarity

Dimensions and approximate weight

model	caliber	Long L	Width B	High H	Connecting thread	Weight kg
	mm
LXSY-15E	15	165	98	104	G/4B	1.5
LXSY-20E	20	190	98	106	G1B	1.7
LXSY-25E	25	230	103	112	G1¹/4B	2.4
LXSY-40E	40	245	124	147	G2B	4.8

Electrical parameters

Power Supply	DC 7.5-15V (RS485 bus), DC 24-36V (M-BUS bus)
electric current	Normally not powered, the bus RS485 (0.6~0.8) mA is used for data acquisition Bus M-BUS (1.0~1.3) mA
Communication method	RS485/M-BUS communication
Communication Protocol	Communication protocols: DL/T645 protocol (consistent with meter protocol), CJ/T188-2004 protocol, MODBUS-RTU protocol