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Split Type Residential Prepaid Water Meters Rf Communication Electronic Latched Valve

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Split Type Residential Prepaid Water Meters Rf Communication Electronic Latched Valve

Brand Name : Calin
Model Number : CAW-S
Certification : CE/SABS/IEC
Place of Origin : China
MOQ : 50pcs
Price : negotiation
Payment Terms : western Union,Paypal, T/T, L/C
Supply Ability : 10,000pcs per month
Delivery Time : 30 days
Packaging Details : Carton
Product Name : STS split type prepaid water meter
Standard : STS, 2004/22/EC(MID), OIML R49
Weight : 1300 g
Display : LCD / counter
Accuracy : Class B
Communication : Radio frequency
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Split Type Residential Prepaid Water Meters Rf Communication Electronic Latched Valve


The CAW-R series is an upgraded type on the basis of CAW-C. It operates with STS (Standard Transfer Specification) standard and Radio wireless communications. The meter works with a low power bistable latched valve driven by battery and able to open and shut for 4 million times during battery lifespan. 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 potted and sealed above on the metering chamber, away from the water, which makes the meter highly reliable.


The meter works with a customer interface unit(CIU) through RF wireless communication. The CIU is installed within customer’s home when the meter is installed in a meter cabinet away from the customer. The STS decryption takes place with the meter and the CIU provides a convenient interface to the customer. Information like token acceptance and rejection, credit status, historical usage data can be displayed with the LCD of the CIU.This split design makes the meter immune to any tamper and fraud on CIU side.


To top-up or recharge the water meter, a consumer just need to purchase 20 digits' credit token from the vendor and punch in the code with the CIU. 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

1) Qn 1.5 Class B more than sufficient for normal household daily use

2) Can be ordered with DN15, 20 and 25

3) Contact-less read / write RFID Transponder technology

4) Split type operation with a in home CIU

5) Counter register and large charactLCD display

6) Potted electronics making meter water resistant in humid and tropical environments

7) Tamper and fraud proof

8) Low credit warning

9) Over 10 years’ data retention in absence of power

10) Prepared for AMR functions with RF, MODBUS, and RS485 (optional)


Key benefits

a) Quick and easy installation, ideal for both new reticulation and retrofittings

b) Multi-rate and usage record on Time of Use (TOU) basis

c) Potted electronic part water resistant adpating to humid and tropical environments

d) Vending software allows setting for free basic water, emergency credit, low credit warning,

e) Supports drive by reading and fully automated reading for AMI smart metering applications

f) Remote reading and valve control on / off

g) Reduced 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:

Remote Water Meter

      

electronic water meter

      
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