271 Series Ultrasonic BTU Meter

BASIC BTU are produced to MID Approval EN1434 - a stringent Europeanthat ensures that the accuracy and quality remain constant so you can be confident that every meter is as good as the last. The ULTRAFLOW flow sensors use microprocessor technology and ultrasonic measuring techniques.

The flow is measured using bidirectional ultrasound based on the transit time method, with proven long-term stability and accuracy.

All circuits for calculating and measuring are collected on a single board, providing a compact and rational design in addition to an exceptionally high level of measuring accuracy and reliability.

The 8digit LED display makes reading the measured value simple and easy. The compact size and lack of moving parts makes the series UHM a low maintenance unit. These features make it

SPECIFICATIONS
1.Communication interface and protocol M-BUS or RS485
1.1 M-BUS interface:
Protocol: Basic Controls, EN1434, CJ188
Power supply : 1) built-in lithium battery power supply
2) M-BUS bus power supply + built in lithium battery
double power supply (optional)
1.2 RS485 interface:
Protocol: MODBUS RTU or BACnet MS/TP
Power supply: DC24V power supply + lithium battery
(optional)
2.Temperature range: (2 ~ 95ºC), temperature sensor
cable is: 1.5m (default) /3m (optional)
3.Protection grade: IP65, pressure grade: PN16
4.Accuracy:class 2
5.Flow range : 50:1 (default) or 100:1
6.Pipe section:Cast steel
7.Four independent periods of measurement, temperature
threshold can be set, the temperature threshold can be set.