Keypad prepaid water meter with split CIU, RF communication, AMR enable

The CA568-S is our flagship prepaid water meter model, certified under STS (Standard Transfer Specifications), ISO4064, and OIML R49 standards. It incorporates a hydraulically controlled ball valve, powered by a low-energy motor. The battery life is exceptionally long, lasting up to 6 years, even with daily valve operation. If the valve is switched on/off once a day, the battery can still last for 3 years. The meter is equipped with robust anti-tamper features—any attempt to interfere with the device, such as using magnets, physical damage, or battery removal, will automatically trigger the valve to shut off. Additionally, the meter is designed with a built-in strainer to prevent debris from entering, and a non-return valve ensures water flow is directed in one direction, preventing backflow. The meter is specifically built to withstand environments with grit particles and to resist backflow.

The Customer Interface Unit (CIU) communicates with the water meter via RF-Lora technology, allowing users to easily recharge their meters by entering a 20-digit token code obtained from a vendor. Furthermore, the meters can be centrally installed in secure meter boxes, reducing the risk of theft or tampering. Users can also enter a short code to quickly check their total water usage, recharge status, and other key metrics.

Calinmeter is both the manufacturer and solution provider for smart water meters, with a complete production line and strong R&D capabilities. We offer not only high-quality, competitively priced meters, but also comprehensive support for vending software and AMI systems. Please feel free to contact us for any inquiries.

Features

a) Certified with STS (Standard Transfer Specifications).

b) Flexible usage duration.

c) Extended battery life with replaceable battery option.

d) Accuracy options of R80 and R100 available upon request.

e) Vending software integrates seamlessly with mobile payment platforms.

f) AMR/AMI system compatibility for advanced monitoring.

Key Benefits

1. Well-designed structure for simple installation.

2. Valve can be remotely switched off.

3. No maintenance required.

4. IP55-rated protection for durability.

5. Enables remote management of water meters.

Specifications:

Maximum Permission Error (MPE)

Q1≦Q≦,Q2 MPE =+ 5% Q2≦Q≦Q4, MPE= + 2% (For hot water metering, MPE=+ 3%)

Dimensions and diagram

Calin, as derived from China League of Innovation, dates  back to the year 2006  when our team developed the new generation of CPU card electronic prepaid kilo-watt hour meter for China State Grid. Now there are over 1,000,000 pcs this type of smart prepayment electric meters operating  as key revenue protection devices for utilities and service providers in and out of China. 

Each member of Calin R&D team  ever served in top rank Chinese meter companies and contributed to the rapid development of smart metering industry in China. With vast forefront field experience and expertise, Calin offer a broad metering product range, comprising of conventional electric meters, water meters, prepaid meters, wireless communication meters, vending and management systems, AMR / AMI smart metering solutions, consulting, training and support.

Calin is the forerunner of prepaid metering industry in China. Our products and solutions are all developed on the concept of revenue protection and better management, and thus enjoy very high reputation in the industry. Even now China is supplying components, complete products as in OEM, and meter electronic design to many other meter manufacturers. With this OEM and trade partners, Calin’s business has expannded to over 30 countries and regions worldwide. 

To share with our clients the benefit from our constant innovation and commit to our clients’ request is Calin’s forever unchanging principle. Running away from responsibility is always condemed. Calin will keep servicing our clients with our best innovation and commitment to create best mutual benefit.