Electronic Register - Hybrid
ERH
Product categories
Water
Water
Mechanical
Wireless
wM-Bus,
LoRaWAN
Software
Infin.io,
MEx,
NQE,
GWF Life
Smart City
Smart Building
Your benefits
- Enhanced Data:
Provides consistent, secure, high-resolution data for water consumption to help detect leaks and backflow to avoid potential revenue loss - Reliable Design:
Constructed with the highest-grade materials the register is ideally suited to challenging submetering applications - Increased Security:
Built with tamper-resistant features such as magnetic tamper indicators and bestin-class Advanced Encryption Standards to provide submetering professionals with peace of mind - NFC Tap and go:
Simple commissioning process - Several critical event flags:
Improved operational efficiency
Applications
- Wireless connectivity with Truety by means of LoRaWAN head-end systems approved by GWF
- Provides superior water supply insight - encoded billing data and critical events
- Use with all GWF multijet and singlejet water meters
Properties
- Fully electronic, solid-state register with no moving parts
- Ultra LowPower magnet field detection
- Integrated NFC configuration interface
- Data security via AES-128-bit end-to-end encryption over 2 independent
security layers - Integrated LoRaWANTM wireless communication transceiver
- Communication status display
- Display of alarms with respective alarm codes
- Typical battery lifetime up to 10 years
- 18 monthly volume key date values
- Different units and resolutions in display representable
- ADR (adaptive data rate) support gives higher transmission intervals with consistent battery life
- FCC ID approval
Product information
Electronic Register - Hybrid - Technology
- The ERH register is designed to detect the rotations of either two or four-pole magnets. Its electronic filter protects it from external magnetic disturbances, while two sensors filter and digitally convert the magnetic field.
- A highly efficient microcontroller is responsible for determining the rate and direction of flow while also having the capability to detect a range of events and alarms, such as backflow. Furthermore, the LCD display allows for maximum flexibility when viewing the measurement data.
- Lastly, the ERH register is fitted with an energysaving, access-protected NFC interface for parameterization and activation, as well as a wireless communication transceiver for LoRaWAN 915 MHz.
Technical Data
| Ambient conditions | |
|---|---|
| Operational temperature | + 41 °F to + 149 °F |
| Transport & Storage temperature | -4 °F to + 158 °F |
| Register protection class | IP67 |
| Power supply | |
|---|---|
| Lithium/Mangan battery (not replaceable) | 3 V DC |
| Typical battery lifetime (depending on environment and configuration conditions) | Up to 10 years |
| Approval | |
|---|---|
| FCC ID: 2A4F7-ERH | - |
| Display | |
|---|---|
| Volume unit | GAL or ft3 |
| LCD | 9 digits |
| Volume resolution | 0.01 GAL or 0.001 ft3 |
| Flow rate unit | GAL/min or ft3 /h |
| Test bench mode | T |
| Low battery Icon | 1) |
| Alarm Icon | 2) |
| Radio indicator (On/Off) and LoRaWAN connectivity status | 3) |
| LoRaWAN specifications | |
|---|---|
| Regional parameters (Frequency band) | US902-928 MHz ISM Band (902 - 928 MHz) |
| Transfer protocol (payload) | GWF specific |
| Radiated power | max. 20 dBm (100 mW) |
| Class | A |
| ADR (Adaptive data rate) | Yes |
| Activation type | OTAA |
| Information data package | |
|---|---|
| DevEUI | 70B3D538700000AB |
| Meter manufacturer | GWF |
| Medium | Water |
| Meter S/N | 23132356 |
| Absolute meter reading (down to 15 min values) | 359.76 GAL |
| Remaining battery life | Years |
| Alarms | Meter alarms, Low Battery, Burst pipe, Potential leak, Backflow, No Usage, Max. flow rate exceeded, Min./ Max. temperature |