Multijet meter
MTe hot NTEP
Product categories
Water
Multijet consumption meter with electronic register for hot water
Water
Mechanical
Wireless
LoRaWAN
Smart Building
Your benefits
- Utility grade and sustainable technology (robust & high grade wear resistant materials with brass body):
Excellent measuring stability and reliability over meter lifetime and awareness of using a recyclable product - NFC Tap and go
Simple commissioning process - Plug & Play:
Easy and fast on-site installation with automatic radio activation (no programming required) - Performance driven design:
Range up to 10 miles (line of sight) - Integrated monitoring of connectivity and reconnecting mechanism:
Robust operation with automatic repair options, e.g. due to gateway failures
Applications
- Multi-Family residential and Retail/Commercial applications for consumption monitoring of water and identification of critical events
Downloads
Links
NSF certificateProperties
- Multijet dry-dial meter with magnetic coupling
- Inlet strainer
- Horizontal installation
- Sealed register for tamper resistance
- Typical battery lifetime up to 15 years
- 18 monthly volume key date values
- NTEP Approval CC 21-096A1
- NSF/ANSI 61-G & 372 certified and marked
- Meets AWWA C708 accuracy standards in horizontal position
- LoRaWAN transmission in license free 915 MHz frequency band
- Data security via AES-128-bit end-to-end encryption over 2 independent security layers
- ADR (adaptive data rate) support gives higher transmission intervals with consistent battery life
Product information
Electronic Register - Hybrid - Technology
(1) LCD
(2) Sensors
(3) Communication antenna
(4) NFC interface
- 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 energy-saving, access-protected NFC interface for parameterization and activation, as well as a wireless communication transceiver for LoRaWAN 915 MHz.
Technical Data
| Nominal pipe size | 1" | 1½" | ||
|---|---|---|---|---|
| Max. operating pressure | psi | 230 | 230 | |
| Connection thread on meter (NPSM) | Inch | 1¼ | 2 | |
| Max. continuous flow rate | gpm | 44 | 70 | |
| Max. flow rate | gpm | 55 | 88 | |
| Min. flow rate (± 3 %) | gpm | 0.75 | 1.5 | |
| Max. operating temperature | °F | 194 | 194 | |
| Dimensions and weights | ||||
|---|---|---|---|---|
| Length without couplings | A | Inch | 10.24 | 11.81 |
| Height | B | Inch | 5.31 | 6.30 |
| Height from pipe centre line | C | Inch | 3.58 | 4.49 |
| Installation depth from pipe centre line | W | Inch | 2.24 | 2.68 |
| Weight without couplings | lbs | 5.62 | 11.51 | |
| Ambient conditions | |
|---|---|
| Ambient temperature | + 41 °F to + 131 °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 15 years |
| Approval | MTW3e |
|---|---|
| NTEP hot No. CC 21-096A1 | ■ |
| New York Certificate No. 10767 | ■ |
| FCC ID: 2A4F7-ERH | ■ |
| Certifications | MTW3e |
|---|---|
| NSF/ANSI 61-G & 372 D.Hot / incl. cold | ■ |
| LoRa Alliance Certification (1.0.4 spec.) | ■ |
Accuracy chart
Pressure loss chart
Dimension Diagram
Installation
| Pipeline: | horizontal |  |
| Meter head: | facing up |  |
Technical Information
| Display | |
|---|---|
| LCD | 9 digits |
| Volume unit | GAL or ft3 |
| Volume resolution | 1“: 0.01 GAL or 0.001 ft3 1.5“: 0.1 GAL or 0.01 ft3 |
| Flow rate unit | GAL/min or ft3/h |
| Test mode | T |
| Low battery Icon | see image 1) |
| Alarm Icon | see image 2) |
| Radio indicator (On/Off) and LoRaWAN connectivity status | see image 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 | Warm 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 |