LXSGY photoelectric direct reading valve-controlled water meter
1. Product overview Photoelectric direct reading valve-controlled water meter is a kind of water meter which uses photoelectric direct
reading technology to read the data of the character wheel. It has no error in reading and strong anti-
interference ability. It is designed with low power consumption, and the water consumption is copied and
controlled remotely through M-BUS.
2. Product features ● By using the unique direct reading coding technology, the position state of the counter wheel is read directly at the moment of meter reading, and then it is transmitted to the system background after decoding, and the same
value as the water meter window is displayed on the meter reading interface. Free from the influence of time,
environment and backflow, and truly achieve zero error. ● Power supply is not needed at ordinary times, but only at the moment of meter reading, and the service life is long. ● There is no physical contact between the direct reading sensor and devices such as counters, which does not affect the metering accuracy. ● EMC test meets the requirements of national standards, and overcomes the problem that the accuracy and stability of direct reading water meters are affected by external electromagnetic interference. ● Each meter has its own unique address code, which is convenient for management and maintenance. ● Error protection devices are provided for bus open circuit, short circuit and idle. ● With background prepayment and valve control function, it can be selected to meet various control requirements.
3. Technical parameter
Performance Temperature class: cold water meter: T30; Hot water meter: T90
Climate and mechanical environment class: B
Pressure class: MAP10
Electromagnetic environment class: E1
Pressure loss class : Δp63
Protection class: IP68
Upstream flow field Sensitivity class: U10
Accuracy class: class 2
Downstream flow field sensitivity class: D5
Nominal caliber DN(mm)
Range ratio R (Q3 /Q1 )
Overload flow Q4 ( m³ /h)
Common flow Q3 ( m³ /h)
Boundary flow Q2 ( m³ /h)
Minimum flow Q1 ( m³ /h)
DN15
100
3.125
2.5
0.040
0.025
DN20
100
5.0
4.0
0.064
0.040
DN25
100
7.875
6.3
0.1008
0.063
DN32
100
12.5
10
0.160
0.100
DN40
100
20
16
0.256
0.160
DN50
100
31.25
25
0.400
0.250
4. Dimension
d D
D d
H
L1 L
B
Length L1 (mm)
Length L (mm)
Nominal diameter DN(mm)
Connecting thread (D)
Connecting thread (d)
Width B (mm)
Height h (mm)
15
165 195
258 294
90
104 106
G3/4B
R1/2 R3/4
G1B
90
20
25
225
345
90
112
G11/4B
R1
32
230
350
103
117
G1′1/2
R1′1/4
420
544
104
124
G2B
R1′1/2
40
Length L1 (mm)
nominal diameter DN(mm)
Width B (mm)
Height h (mm)
adapting flange
Outer diamete r d
Central diameter D1 of bolt hole
Number and specification of connecting bolts
50
420
175
335
165
125
4×M16
08 > > Accurate Measurement and Smart IOT
Powered by FlippingBook