LXSGY photoelectric direct reading water meter
1. Product overview Photoelectric direct reading water meter is a kind of water meter that uses photoelectric direct reading
technology to read the data of the word wheel. It has no error in reading and strong anti-interference ability. It is
designed with low power consumption and uses M-BUS to copy the water consumption.
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 daily life, but only at the moment of meter reading, and the service lifetime 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. ● Unique address code: each meter has a unique address code belonging to this table, which is convenient for management and maintenance. ● Error protection: there are error protection devices for bus open circuit, short circuit and idle.
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
Length L1 (mm)
Length L (mm)
Nominal diameter DN(mm)
Width B (mm)
Height h (mm)
Connecting thread (D)
Connecting thread (d)
15
165
258
98
104
G3/4B
R1/2
20
195
294
98
106
G1B
R3/4
25
225
345
112
G11/4B
R1
103
32
230
350
104
117
G1′1/2B
R1′1/4
40
245
369
124
147
G2B
R1′1/2
Length L1 (mm)
Nominal diameter DN(mm)
Width B (mm)
Height h (mm)
Adapting flange
Outer diameter D
Central diameter D1 of bolt hole
Number and specification of connecting bolts
50
285
160
195
160
125
4×M16
Accurate measurement and intelligent IOT > > 07
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