Product Overview
MEGA-W7 Residential Ultrasonic Water Meter is designed for the residential area with household metering and billing system, reached the demand for precise measurement and settlement on End-User for water utilities.
- Approved according to GB/T 778-2007 and MID certification;
- The low starting flow, minimum flow rate is lower than the 1/3 of the traditional water meter;
- Bi-directional flow measurement;
- Have water temperature detection and temperature alarm;
- No moving parts, no wear, can be long-term and stable operation;
- More than 10 years battery operated life span;
- Be installed at any angle, the measurement accuracy is not affected;
- Ultrasonic signal quality detection;
- Magnetic induction button;
- The overall IP68 design, long-term immersion in the work;
- Support optical, wired & wireless M-Bus, RS485, 4-20mA, LoRa, NB-loT and pulse interfaces;
- Complies to MODBUS RTU and EN 13757 communication protocol;
- Comply to drinkable water standard requirement;
- LCD screen can be changed by touching the magnetic switch.
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Specifications
| Precision Class | class 2 | | Standards | MID (OIML R49, EN 14154, ISO4064) | | Volume Display Options | 1. Net (Forward less reverse)
2. Forward only
3. Forward & reverse alternating | | Temperature grade | T50?T30 optional? | | Pressure loss grade | ?p40 | | Power Source | 3.6V Li-battery: 10* years Or additional power supply 24VDC | | Environmental Protection | IP68 (Additional 24VDC power supply, IP65) | | Ambient operation temp | Class C (class B, class I optional) | | Maximum working pressure | 1.6MPa | | Range ratio ?qp?qi? | 250:1 | | Data Logger | Volumes: 480 Daily data; 36 Monthly data; 16 Yearly data
Alarms data: 32 | | Maximum flow reading (m3) | Forward: 99999.99999; Reverse:-9999.99999 | | Electromagnetic environment level | Class E1(class E2 optional) | | * remark | The battery must be in normal ambient temperature conditions, also depends on the data transmission frequency and correct meter battery installation (positive electrode on the top) | | Standard interface | Infra-red, M-Bus, RS485 | | Analog output | 4~20mA: The Analog Output shows the currently measured flow rate | | Wireless interface | Wireless M-Bus: T1 868MHz
LoRa:470MHz
NB-IoT | | Digital (pulse) Output | OC: Volume |
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Flow Range
Dimension
