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Find out more about the SH5112 STS prepaid water meter that utilizes mechanical multi-jet metering technology, combined with a wireless CIU and token-based control systems for its water utility projects.
Product Overview
The STS Prepaid Water Meter SH5112 combines a mechanical multi-jet metering system with electronic prepaid management. The mechanical register measures the volume of water consumed, while the STS system manages water credit through token-based recharge.
A separate wireless CIU allows users to enter recharge tokens and check available credit without direct access to the water meter. The integrated motorized valve controls the prepaid water supply according to the meter's settings.
Available in DN15, DN20, and DN25, with brass or nylon plastic body options, this meter provides a practical solution for residential water supply and prepaid water metering projects.
Product Features
Key Product Features
Look at the main characteristics of the STS Prepaid Water Meter SH5112. It involves mechanical multi-jet metering, a wireless CIU, STS token recharge, automatic valve control, and flexible communication options.
Mechanical Multi-Jet Metering
The STS Prepaid Water Meter SH5112 utilizes a multi-jet mechanical structure for measurement purposes. Several water inlets are made use of to give an even flow to the impeller, making the mechanical register note the water consumption. Providing two options of metering ratios, namely R100 and R160, the device accommodates various needs for residential water metering.
Split-Type Design with Wireless CIU
This meter is equipped with a remote Customer Interface Unit (CIU). The CIU allows users to inputSTS recharge tokens and monitor their water balance without reaching the meter directly. The structure is especially beneficial when the meter is fitted outside or nestled in a closed meter box.
STS Token-Based Prepaid Control
The meter supports STS-compliant 20-digit token recharge. After users purchase water credit, they enter the token through the CIU. The meter validates the token and updates the available credit, while water consumption is deducted according to the measured volume. This helps water utilities manage prepaid accounts and reduce unpaid water consumption.
Integrated Motorized Valve
An integrated motorized ball valve controls the water supply according to the meter's prepaid settings. The valve supports automatic supply control based on available water credit and configured operating conditions, helping utilities manage prepaid water services.
Multiple Communication Options
For remote reading and centralized management, the meter can be configured with different communication technologies according to project requirements. Available options includeLoRaWAN, LoRa, NB-IoT, 4G, 2G, and Wireless M-Bus. The communication configuration is selected based on network coverage, project scale, and platform requirements.
IP68 Protection and Flexible Configuration
The meter aims to satisfy the requirements present in harsh water metering applications. The meter has an IP68 rating and may consist of either a brass or a nylon body. Moreover, it is possible to choose from water meter sizes such as DN15, DN20, and DN25.
Technical Specifications
| Parameter | Specification | DN15 | DN20 | DN25 |
| Metrological Ratio | R | R100 / R160 | ||
| Overload Flow Rate (Q4) | m³/h | 3.125 | 5.0 | 7.875 |
| Permanent Flow Rate (Q3) | m³/h | 2.5 | 4 | 6.3 |
| Transitional Flow Rate (Q2) | L/h | 25 | 40 | 63 |
| Minimum Flow Rate (Q1) | L/h | 15.6 | 25 | 39.375 |
| Accuracy Class | Class 2 | |||
| Body Material | Brass / Nylon Plastic | |||
| Temperature Class | T30 / T50 | |||
| Maximum Allowable Pressure | PN16 | |||
| Pressure Loss Class | ΔP63 | |||
| Protection Rating | IP68 | |||
| Battery Life | >6 Years | |||
| Power Supply Mode | Meter: 3.6V Lithium battery | |||
| CIU: AAA Dry battery, 2 pcs only | ||||
| Pulse Output | 0.01m³/pulse | |||
| Communication | LoRaWAN, LoRa, NB-IoT, 4G, 2G, and wM-Bus | |||
| Electromagnetic Environment Class | E1 | |||
| Environmental Class | O | |||
| Flow Profile Sensitivity Class | U5 / D3 | |||
Product Dimensions
Installation Requirements
Proper installation is essential for the effective operation of a water meter. The selection of the appropriate meter size should be based on compatibility with the pipeline connection and available installation space. During installation, the specified water flow direction must be observed. Additionally, the pipeline should be checked for cleanliness before the meter is put into operation, helping ensure reliable water metering performance.
Metering Performance
Metering Accuracy & Performance
R100 and R160 metering ratios are available for this meter in order to suit various water measuring needs. The metrological ratio (R) indicates the relationship between permanent flow rate (Q3) and minimal flow rate (Q1). For the same Q3, a bigger R value means a lower Q1, which allows for measuring lower flow rates.
With Class 2 accuracy and nominee size options, this meter enables various metering configurations used for water supply projects in households.
Battery & Power Supply
The power supply of the meter consists of a 3.6 V lithium battery, while the CIU operates with the help of 2 AAA batteries. The separate power supply design allows the operational independence of both the meter and the CIU, hence enabling flexible installation and prepaid water management.
The meter battery has the potential to last for over six years under the established operating conditions, thereby minimizing the number of battery replacements and maintenance activities.
Certifications & Quality Assurance
Certifications & Compliance
The STS Prepaid Water Meter meets applicable water metering standards, technical specifications, and accuracy classification. The technical specifications make it possible to evaluate compliance for various water supply projects. Relevant certificates and test reports are also available for the product as per its specifications and certification scope.
Quality Assurance
SH Meters ensures that quality control is applied at every stage of manufacturing with different operations, including the incoming material inspection, component assembly, metering performance testing, and finished product inspection. These processes allow the company to guarantee that product quality is maintained, metering performance is trustworthy, and the product operates properly before delivery.
Customization & Project Support
Customization & Project Support
OEM & Customized Solutions
SH Meters provides OEM services and customized solutions to meet different project requirements. Customization options can cover product appearance, logo, labeling, communication configuration, and software functions, depending on project specifications. The team works with customers to define suitable product and system configurations for their water metering projects.
Installation & Long-Term Project Support
SH Meters provides on-site installation, system commissioning, technical training, and long-term operation and maintenance support for water metering projects. From initial deployment to ongoing system operation, the team assists customers with equipment installation, system integration, troubleshooting, and maintenance to support reliable project operation.
About SH Meters
SH Meters is a manufacturer of water meters, which specializes in the production of mechanical water meters, smart water meters, and prepaid metering solutions. The company has been successfully cooperating with customers all over the world since 2013, providing high-quality water meter products and full lifecycle project support to various global water utility companies, distributors, and project contractors.
Professional Team
Our team provides technical consultation, product selection, and customized solutions, helping customers meet their project requirements from planning to implementation.
Global Project Support
SH Meters provides software customization, on-site installation, technical training, and long-term O&M services to support international water metering projects.
13+
Years of Experience
60+
Export Countries
1M+
Annual Production Capacity
8%
R&D Investment
Frequently Asked Questions
Frequently Asked Questions
What type of metering technology does this STS prepaid water meter use?
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The meter uses a mechanical multi-jet measuring structure with a dry dial register. Water flow drives the impeller, which transfers movement to the mechanical register to record water consumption.
What is the difference between R100 and R160?
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R100 and R160 represent different metering ratios. At the same permanent flow rate (Q3), R160 has a lower minimum flow rate (Q1) than R100, allowing it to measure lower flow rates.
How does the STS prepaid water meter recharge system work?
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Users purchase water credit and receive a 20-digit STS token. They enter the token through the wireless CIU, and the meter validates it and updates the available water credit.
Does the meter support remote reading and communication with management platforms?
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Yes. Depending on project requirements, the meter can be configured with communication options such as LoRaWAN, LoRa, NB-IoT, 4G, 2G, and Wireless M-Bus for remote reading and centralized management.
How long does the meter battery last?
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The meter is powered by a 3.6V lithium battery with a designed service life of more than six years under specified operating conditions. The separate CIU uses two AAA batteries.
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