KM03-RF01
Multi-jet dry type water which is combined with integrated chip technology with optical sensors as well as communication module. It can realize wireless remote data reading and remote valve control. It is for industrial and domestic water.
Description
1. Application
Jingcheng RF card prepaid water meter is the new measuring instrument employing the microprocessor to realize water collection, processing, display, and reserving.
2. Features
● RF card water meter use a pre-paid way to achieve the new management mode of"Purchase, then use".
● Show the different level prices of the water, one card can be used for several meters.
● Double reading display: mechanical and electronic reading, unique battery protection.
● 9 functions:bluetooth function;Anti-theft; anti-magnetic interference;step water price function; data query;easy to change battery; balance alarm; accurate counting;close valve when arrears.
● Stable performance, wide application, low power consumption, long lifetime.
● Electronic component with good sealing performance, and high protection level.
● Meter Body Adopt environmental protection material, High strength, High toughness.
3. Head Loss Curve 
4. Accuracy Error Curve
5. Installation Dimension

|
Item No |
L1 Over Length |
L Length |
W Width |
H Heigh |
Weight /pcs(kg) |
Measurement(cm) |
Connection Thread |
|
|
G.W. /N.W |
D |
d |
||||||
|
LXSGW-15W |
260mm |
180mm |
113mm |
130mm |
1.6 |
|
G3/4 |
R1/2 |
|
LXSGW-20W |
295mm |
190mm |
113mm |
130mm |
1.8 |
|
G1B |
R3/4 |
6. Technical Data
|
Quiescent electricity |
Operating voltage |
Ambient humidity |
Working frequency range |
Ambient temperature |
Transmitted power |
Receiving sensitivity |
|
Hall:12+-1uA Reed swtich<5uA |
2.7-3.6V |
10%-90% |
B1,B2,B5,B8,B20,B21 |
-20-75 ℃ |
<25dBm <200dBm |
-131+-1dBm -136+-1dBm |
7. Main Technical Data
|
Model number |
LXSGW-15W |
LXSGW-20W |
||||
|
Nominal diameter (DN)[mm] |
15 |
20 |
||||
|
Ratio Q3/Q1 |
R80 |
R100 |
R160 |
R80 |
R100 |
R160 |
|
Overload flow rate (Q4) [m³/h] |
3.125 |
3.125 |
3.125 |
5 |
5 |
5 |
|
Permanent flow rate (Q3) [m³/h] |
2.5 |
2.5 |
2.5 |
4 |
4 |
4 |
|
Transitional flow rate (Q2) [m³/h] |
0.05 |
0.04 |
0.025 |
0.08 |
0.064 |
0.04 |
|
Minimum flow rate (Q1) [m³/h] |
0.032 |
0.025 |
0.015 |
0.05 |
0.04 |
0.025 |
|
Accuracy class |
2 |
|||||
|
Maximum permissible error for the lower flow rate zone (MPEι) |
±5% |
|||||
|
Maximum permissible error for the upper flow rate zone (MPEμ) |
±2% for water having a temperature ≤30℃ |
|||||
|
Temperature class |
T30,T50 |
|||||
|
Water pressure classes |
MAP 16 |
|||||
|
Pressure-loss classes |
△P63 |
|||||
|
Indicating range[m³] |
99 999 |
|||||
|
Resolution of the indicating device[m³] |
0.00005 |
|||||
|
Flow profile sensitivity classes |
U10D5 |
|||||
|
Orientation limitation |
HORIZONTAL |
|||||
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