HRI-Mei Sensor
- Enables reliable data from MeiStream and MeiTwin meters
- Maintains meter accuracy without mechanical influence
- Simple retrofit without breaking metrological approval
- Supports monitoring, profiling, and billing
- Reliable operation in harsh or flooded environments
Data interface for MeiStream and MeiTwin water meters
Sensus HRI-Mei Sensor is a data interface for industrial water meters, designed for high-resolution pulse output with flow direction detection. It is compatible with MeiStream and MeiTwin meters and supports pulse-based and M-Bus data transmission for monitoring and control applications.
The HRI-Mei sensor can be retrofitted to compatible meters without breaking the metrological seal and uses load-free, inductive scanning to detect meter movement without influencing performance. Its robust, hermetically sealed design enables reliable operation in harsh environments, including flooded meter pits.
Typical applications include industrial monitoring and SCADA systems, flow rate indication using frequency converters, local and remote meter reading for billing, data logging, and profiling via fixed networks, radio modems, or GSM-based communication systems.
Features
- Data interface for industrial water meters with pulse and M-Bus output
- Load-free, inductive scanning of the meter pointer
- Detection of flow direction
- Retrofit installation without breaking the metrological seal
- Self-diagnosis and tamper detection
- Hermetically sealed housing for operation in harsh environments
Specifications
- Output type: Electronic pulse output with flow direction and tamper signalling
- Pulse configuration: Programmable pulse weight and pulse length
- Data interface: M-Bus and MiniBus with automatic interface and baud rate detection (300 / 2400 Bd)
- Protocol standard: IEC 870-5 / EN 13757-3
- Power supply: Internal battery with lifetime up to 12 years; external power via M-Bus possible
- Ingress protection: IP68