KM03-RF03
Dry type register, Water consumption by rich reports on PC, residential application with size from DN15 to DN20.
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.
● 8 functions:;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 |
||||||
|
LXSGZ-15E |
260mm |
165mm |
90mm |
110mm |
1.2 |
|
G3/4 |
R1/2 |
|
LXSGZ-20E |
295mm |
190mm |
90mm |
110mm |
1.4 |
|
G1 |
R3/4 |
|
LXSGZ-25E |
345mm |
225mm |
90mm |
110mm |
1.6 |
|
G1-1/4 |
|
6. Technical Data
|
Operating Voltage |
Rated operational voltage |
Electricity |
Quiescent electricity |
Ambient temperature |
Low voltage protection |
Volume of water per pulse signal |
|
2.5-3.6V |
3.6V |
<20mA |
<25uA |
0.1-55 ℃ |
2.4V |
100L |
7. Main Technical Data
|
Model number |
LXSGZ-15E |
LXSGZ-20E |
LXSGS-25E |
||||||
|
Nominal diameter (DN)[mm] |
15 |
20 |
25 |
||||||
|
Ratio Q3/Q1 |
R80 |
R100 |
R160 |
R80 |
R100 |
R160 |
R80 |
R100 |
R160 |
|
Overload flow rate (Q4) [m³/h] |
3.125 |
3.125 |
3.125 |
5 |
5 |
5 |
7.875 |
7.875 |
7.875 |
|
Permanent flow rate (Q3) [m³/h] |
2.5 |
2.5 |
2.5 |
4 |
4 |
4 |
6.3 |
6.3 |
6.3 |
|
Transitional flow rate (Q2) [m³/h] |
0.05 |
0.04 |
0.025 |
0.08 |
0.064 |
0.04 |
0.126 |
0.1 |
0.063 |
|
Minimum flow rate (Q1) [m³/h] |
0.032 |
0.025 |
0.015 |
0.05 |
0.04 |
0.025 |
0.08 |
0.063 |
0.039375 |
|
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 |
U10 D5 |
||||||||
|
Orientation limitation |
HORIZONTAL |
||||||||
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