Product use
It is used to measure the total amount of water flowing through the direct drinking water pipeline.
Product characteristics
A. prepayment function: first pay, then use; can write the water purchase quantity to the water meter of C card through the user card. When the water purchase quantity is used up, i.e. the remaining water quantity is zero, the valve will automatically close and cut off the user's water consumption; the user can open the valve automatically to resume the water consumption after paying for the water purchase again and writing the water purchase quantity into the water meter of C card through the user card.
B. step water price, one card and more meters
C. monitoring function: when the remaining water is used up, the water meter valve will automatically close, and when the battery voltage is insufficient, the water meter valve will automatically close for alarm; in case of failure, the date of valve out of control will be recorded.
D. double display function of mechanical reading and electronic reading.
E. unique battery protection function, stable performance and wide application range.
F. ultra low power consumption and long service life.
G. data retention function: the data in the water meter can be kept for 10 years without loss of power down data.
Design standard
GB / t778-2007 measurement of water flow in closed pipeline full pipe drinking cold water meter and hot water meter
G162-2009 verification regulation of cold water meter
CJ / t241-2007 drinking water meter
Rated working conditions
Flow range: q1-q3
Ambient temperature: 5 ° c-55 ° C
Water temperature: cold water 0.1 ° c-30 ° C
Water pressure: 0.03mpa ~ maximum allowable pressure (map10)
Water quality: tap water, direct drinking water, miscellaneous water, domestic hot water
Ambient humidity: (0 ~ 100)% RH
Electromagnetic environment level: E1
Climate and mechanical environment class: B
Product technical parameters
project Project index Using medium Direct drinking water and tap water Texture of material copper Caliber DN15～25 Unit of measurement m3 Flow range Q1～Q3 Range specific flow R80 Minimum flow rate 6 litres / hour Installation mode Vertical installation（H) Medium temperature Cold water meter is 0.1 ℃ ~ 30 ℃ temperature grade T30 Pressure grade MAP10 Minimum working water pressure 0.02MPa Pressure loss level P63 Degree of protection IP65 Static working current ≤7uA Working current ＜40mA Flow field sensitivity level U10 D5 Installation environment Class B electromagnetic environment E1 Valve closing time Valve closing time Durability performance Electric valve switch＞10000次 relative humidity ≤ 90% pressure loss ≤0.063MP IC card life >10 times data protection Self data memory, power down storage time ≥ 10 years maximum error High area（Q2≤Q≤Q4)by±2% Low area（Q1≤Q ＜Q2) by5%
Flow parameters
|
Model |
caliber |
Range ratio R |
Overload discharge |
Common discharge |
Boundary flow |
Minimum flow rate |
|
M3/h |
||||||
|
LXSLC-15 |
DN15 |
80 |
3.15 |
2.5 |
0.05 |
0.031 |
| LXSLC-20 | DN20 | 80 | 5.00 | 4.0 | 0.08 | 0.050 |
| LXSLC-25 | DN25 | 80 | 7.87 | 6.3 | 0.126 | 0.078 |
note：Range ratio R=80/100/125/160，For detailed technical parameters, please call。
Indication error limitThe accuracy level of this series of water meters is level 2. In the range of water temperature from 0.3 ° C to 30 ° C, the maximum allowable error of water meters is ± 2% in the high area (Q2 ≤ Q ≤ Q4) and ± 5% in the low area (Q1 ≤ Q < Q2). When the water temperature exceeds 30 ° C, the maximum allowable error of the water meter in the high zone is ± 3%.
External size
|
Model |
Nominal diameter |
Long L |
Board B |
Height H |
Connecting thread |
weight |
|
|
mm |
d |
D |
Kg |
||||
|
LXSLC-15 |
15 |
152 |
83 |
141 |
R1/2 |
G3/4 |
≈1.7 |
|
LXSLC-20 |
20 |
168 |
83 |
145 |
R3/4 |
G1B |
≈2.6 |
|
LXSLC-25 |
25 |
176 |
83 |
160 |
R1 |
G1B |
≈2.5 |
