STS Compliant Digital Prepaid Water Meters Card Type Brass Body IP67
The CAW-15/20/25-C series is an STS (Standard Transfer Specification) compliant, electronic valve controlled, water meter. With CAW-C series you are assured of continuously good metrology and revenue protection at the same time.The electronic part of the meter is sealed away from the water, which makes the meter high reliable.
The meter uses a Smart RFID token Card to handle credit and monitor water use. Customers purchase credit at vending points, providing an opportunity to download new tariff data. Simultaneously, data from the meter, stored on the Smart Card, is uploaded and sent to the utility headquarters. Credit is top-up to the meter by a simple tap on the counter lid.
With our broad range of prepaid vending solutions, a utility or service provider can manage CAW series water meter along with STS prepaid electricity meters in one vending system.
Features
a) Qn 1.5 Class B
b) DN15, 20 and 25
c) Integrated low power bistable latched valve 4 million on/off in battery life
d) Potted electronics making meter water resistant in humid and tropical environments
e) Tamper and fraud proof
f) Low credit warning
g) Over 10 years’ data retention in absence of power
h) Prepared for AMR functions with RF, MODBUS, and RS485 (optional)
i) Available with EMC, ESD, EMI approval
Key benefits
1) Quick and easy to install for both new reticulation and retrofittings
2) Multi-rate and usage record on Time of Use (TOU) basis
3) Vending software allows setting for free basic water, emergency credit, low credit warning,
4) Can be upgraded with communication facilities for AMR AMI smart metering applications
5) Reduce operational and inventory cost
Specifications:
|
Nominal size
|
Dn
|
mm
|
in-line
|
|
15
|
20
|
25
|
|
Maximum flow rate
|
Q4
|
m3/h
|
3.125
|
5.0
|
7.875
|
|
Ratio “R”
|
Q3/Q1
|
|
80
|
80
|
80
|
|
Permanent l flow rate
|
Q33
|
m3/h
|
2.5
|
4.0
|
6.3
|
|
Transitional flow rate
|
Q22
|
0.05
|
0.08
|
0.126
|
|
Minimum flow rate
|
Q11
|
0.031
|
0.05
|
0.0787
|
|
Minimum reading
|
m3
|
0.0005
|
|
Maximum reading
|
99999
|
Maximum Permission Error (MPE)
Q1≦Q≦,Q2 MPE =+ 5% Q2≦Q≦Q4, MPE= + 2% (For hot water metering, MPE=+ 3%)
Dimensions and diagram
|
Nominal size
|
Length
|
Width
|
Height
|
Thread
|
|
mm
|
D
|
|
15
|
165
|
101
|
124
|
G3/4B
|
|
20
|
195
|
101
|
124
|
G1B
|
|
25
|
225
|
101
|
124
|
G5/4B
|
Product Tags:
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STS Compliant Digital Prepaid Water Meters Card Type Brass Body IP67 Images
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