Description
LXSZ series wireless remote valve-control wet water meter is high-tech integrative product. This series meter uses advanced wireless transmission technology. Through microelectronic control circuits, it converts the pulse signals of traditional mechanical meter into electrical signals. Then the metering data is transmitted to background platform through GPRS network automatically, or it can be collected by a hand-held wireless unit from outside of the houses and after that downloaded to a computer through USB port.
Structure and Working Theory
Inside the counter of water meter (mechanical part), there is one magnet embedded under the wheel pointer for 0.01 m3 of water and two reed switches beside each side of the wheel. Each time the pointer goes a circle, one group of two pulses is generated to represent 0.01 m3 of water being calculated. The pulses are converted to digital signals and recorded as metering data based on pre-set program. Then the metering data can be transmitted to a concentrator or hand-held unit.
|
Model
|
Nominal Diameter
|
Metering Grade
|
Common Flux
|
Transitional Flux
|
Minimum Flux
|
Minimum Reading
|
Maximum Reading
|
|
mm
|
|
m3/h
|
m3
|
|
LXSZ-15（cold）
|
15
|
B
|
1.5
|
0.12
|
0.03
|
0.0001
|
99999.999
|
|
LXSZ-20（cold）
|
20
|
B
|
2.5
|
0.2
|
0.05
|
0.0001
|
99999.999
|
|
LXSZ-25（cold）
|
25
|
B
|
3.5
|
0.28
|
0.07
|
0.0001
|
99999.999
|
|
LXSZR-15（hot）
|
15
|
A
|
1.5
|
0.15
|
0.06
|
0.0001
|
99999.999
|
|
LXSZR-20（hot）
|
20
|
A
|
2.5
|
0.25
|
0.10
|
0.0001
|
99999.999
|
|
LXSZR-25（hot）
|
25
|
A
|
3.5
|
0.35
|
0.14
|
0.0001
|
99999.999
|
- Working Pressure：≤1MPａ；
- Pressure Loss：≤0.1MPａ；
- Working Temperature：cold water meter：maximum working temperature； hot water meter：30－90℃.
Electronic Parameters
- Central Frequency: 470MHz
- Battery：3.6V/3.3A/h disposable lithium battery
- Modulation: FSK
- Bandwidth：64KHz
- Power Consumption：30uA
- Transmit Power: 50mW
- Transmit Distance：>200m (open field)
- Product Life: >6 years
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● Mainly applicable to projects in new construction area or reconstruction projects in old residential area which are inconvenient for wiring deployment.
● Wireless transmission technology is applied to realize out-door meter reading and solve the problem of reading difficulties. It is easy to install without wire deployment.
● The distance of wireless transmission is over 200 meters in open field.
● The interface of management software of the host computer is user-friendly; it can generate various formats of profiles linked with charging system according to customers’ needs.
● Total volume measurement of water flowing through tap water pipe and reading of water meter data.
● Remote valve-control to prevent arrearage from happening.
● Three-grade automatic routing to lengthen transmission distance.
● Real time data reading can realize graded pricing.
● Water-proof design enables the meter to work under water.
● ERFCU design, ultralow power consumption.
● WOR remote awaking technology enables the extension of communication distance.
● Wamr Net Router Protocol can guarantee data security.
● High-speed data communication enables a single meter to read data within 1.5seconds.
● Simple and reasonable structure design and replaceable battery.
● From minimum flux inclusive up to transitional flux: ±5%
● From transitional flux up to maximum flux both inclusive: ±2% (cold water meter)
● From transitional flux up to maximum flux both inclusive: ±3% (hot water meter)
SHANGHAI FENGYILONG ELECTRONIC CO. LTD.
Year Established: 2001
Business Type:Manufacturer and Trading Company
Management Certifiation: iSO9001
Operational Address: Room 206, 2/F, Bldg. 1, No. 461, Hutai Road, Shanghai, China (Mainland)
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