Overview
The Inventory Master advanced water meter with TMR technology is a water meter that integrates electronic modules on traditional single jet water meter with advanced TMR technology. It was launched by Joy and combines years’ experience in metering research and development. It has been proven that VOHA is reliable and absolutely matured achievement in accurate measurement and data transmission.
Features
- Precise sampling up to 0.008L
- Optional communication ports
- Automatic events recording and reporting
- Static consumption less than 15µA
- High LCD resolution up to 1L
- Real-time anomaly monitoring
- Stable measurement anti-vibration
- Anti-magnetic protection and records
Technical Specifications
| Size | DN15 to DN20 |
| Temperature | T30or T90 |
| Communication | MBus/RS485/lorawan |
| Protection Class | IP65 or IP68 |
| Diameter, Mm | DN15 or DN20 |
| R (Q3-Q1) | 2.5 or 4 |
| Q3, M³/h | 3.125 or 5 |
| Q4, M³/h | 4 or 5 |
| Q1, M³/h | 0.025 or 0.04 |
| Connection | G¾ or G1¼ |
| Length, Mm | 110 or 130 |
| Width, Mm | 73 |
| Height, Mm | 91 |
| Flow Sensor Type | Single-jet, dry |
| Flow Sensor Material | Brass |
| Temp. Class | T30 |
| Pressure Loss | ΔPΔ3 |
| Sensitivity to Irregularity | U4003 |
| Max. Working Pressure, MPa | 1.6 |
| Accuracy | ±2.5% |
| Environmental Classification | B3 |
| Electromagnetic Environment | H2 |
| Start Flow Rate | 15 L/h |
| Installation Direction | Horizontal |
| Installation Environment | Indoor |
| LCD Display | 2 Digit |
| LCD Resolution | 0.01 m³ |
| Communication Interface | M-Bus, lorawan |
| Event Storage | 32 Records |
| Data Storage | Memory, flash |
| Power Supply | DC 3.6V or battery |
| Meter Life | 10 Years (reads hourly) |
| Static Consumption | < 15 µA |
| Protection | IP65 (DB), IP68 (lorawan) |
| Standard | ISO4064, EN14114, OIML R49 |
| Compliance | EN13757, C11/98 |
| Ambient Temp | 23°F to 131°F (-5°C to 55°C) |
| Storage Temp | -4°F to 158°F (-20°C to 70°C) |
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