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| Wide range of measurement | Q3/Q1 up to 400 in both accuracy class 2 and class 1 |
| Lower height, especially designed for shallow chambers | Detail heights for each nominal diameter, on page 7-8 |
| Battery life exceeds 6 years | Even with excitation frequency set to 1/9 Hz and uploads data 4 times a day remotely, the battery of D1 can still last more than 6 years |
| Long lasting performance | Polymer diversion pipe, requiring no lining while possessing better durability Self-adhesive coil pressed with grinding tool, offering a more stable electromagnetic field Stamping silicon steel magnetic conductive plate, constraining and enhancing the magnetic field |
| Long term stability | Sensor cavity resin injection process guarantees that better coil insulation, less loosening during transportation and installation. |
| Inner cavity humidity alarm | Monitor the humidity of the inner cavity and issue an alert at the first sign of leakage |
| Optional integrated pressure Sensor | Eliminates protruding components or external wiring, less damage during transportation and installation |
Traditionally, circuits were wound and bent manually, which led to a non- standardized electromagnetic field and had an impact on the accuracy in long-term operation. To offer a more stable electromagnetic field, RELI designed an automatic machine for circuit production.
We utilized self-adhesive coils to ensure the coils were evenly stressed during the bending process. In coordination with our injection molding diversion pipe, the circuit can be perfectly fitted onto it, thereby attaining a more stable magnetic field and offering higher accuracy and stability.
D1 uses stamping silicon steel magnetic conductive plate to constrain and enhance the magnetic field, in order to obtain a stronger while more stable magnetic field with less power consumption.
D1 can be fully powered through the integrated lithium battery. It is ideal for places lacking external power supply. We also offer additional power supply methods in addition to the battery, including DC cabling.
For the DC powered model, the integrated battery can serve as a backup power supply to guarantee seamless service during power outage periods.
We continuously optimize the structure and circuit design to attain higher precision and lower power consumption. Consequently, the battery life has been significantly extended from 4 years to over 6 years, enabling less frequent battery replacement.
The excitation frequency of D1 is set to 1/9 Hz by default, but it can be configured to 1/5 or 1/15 Hz. It has a significant impact on the battery life. The relationship between the excitation frequency and the battery life is presented below.
Normal rubber lining will react with chloride ions in water, thereby accelerating its aging. It will disintegrate into small pieces and pollute the water.
The diversion pipe of D1 is crafted from PPS. PPS is a stable polymer with extremely strong resistance to chloride ions in potable water. This material demonstrates exceptional compatibility and serves as an optimal choice for applications involving direct contact with potable water.
Our proprietary sensor cavity resin injection process enhances long-term stability and reliability. By injecting resin, it effectively eliminates trapped air within the sensor cavity, ensuring robust coil insulation that maintains consistent electrical performance. Simultaneously, the resin solidifies internal components into a unified structure, preventing mechanical loosening caused by vibrations during transportation or installation.
Maintenance protocols can also benefit from this integral protection system. In the unlikely event of water exposure, repairs focus solely on converter replacement rather than the whole meter. This design can significantly reduce downtime and labor costs compared to conventional systems requiring full meter replacement. This design fundamentally extends service life while lowering total cost of ownership through enhanced fault tolerance.
RELI delivers precision flow calibration services spanning 0.031-1000 m3/h under ISO 17025 accreditation, with laboratory operations certified under ILAC MRA for global measurement traceability and result validity.
Each sensor is accompanied by a calibration certificate, while critical operational parameters are securely embedded in the instrument's non-volatile memory. This integrated verification architecture combines hardware-based data integrity with archival systems, ensuring continuous access to accredited measurement records throughout equipment operational lifespans. The system provides audit-compliant measurement foundations supporting process control optimization across critical infrastructure applications.
The embedded fault detection system will primarily monitor the status of D1 and alert the user both locally and remotely upon detecting any fault.
We support diverse types of fault detection, such as empty pipe, reverse flow, and abnormal pressure/temperature/-flow rate, etc. Regarding flow rate, pressure and temperature, the value range for sending the alert can be customized by the user.
| Wetted Materials | Electrodes Stainless steel 316L |
| Lining Polymer diversion pipe | |
| Transmitter | Mounting Integral with sensor |
| Housing IP68 stainless steel 304 polyamide glass window | |
| Power supply | Types 3.6V integrated lithium battery only 3.6V integrated lithium battery + DC 24V |
| Battery life @ 0°C to 50°C (32°F to 122°F) Typically 6 years (Measuring every 9 seconds & remote transmission every 6 hours | |
| Communication | Communication Protocol Wired communication RS-485 (ModBus protocol) RS-485 (custom protocol) Wireless communication 4G |
| Antenna types Integrated antenna External square antenna | |
| Alert Types Low battery Empty pipe Excitation Reverse flowInstantaneous flow reaches maximum or minimum Pressure reaches maximum or minimum Temperature Humidity Operating current Operating parameters |
