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15mm to 40mm Inline Ultrasonic Btu Meter

15mm to 40mm Inline Ultrasonic Btu Meter

MOQ : 10 Piece

Business Type Manufacturer, Exporter, Supplier
Model UBM250I-T
Measuring Principle Transit time difference
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Preferred Buyer From

Location Worldwide

Product Details

wall mounting, panel, local
Transducer type
clamp-on, spool piece, or insertion
LCD with backlight, 2 x 20 characters 1-line, non-backlit 7 digit LCD (ILD version) Displays energy

The threaded ultrasonic BTU meter UBM250I-T is designed for measuring thermal energy of small area where pipe size is not bigger than 40mm , e.g. apartment, villa, shop, etc. The BTU meter comprises of ultrasonic flow sensor and two temperature sensors, base on flow rate and differential temperature of supply / return water to calculate the thermal energy consumption. The product adopts a design of straight-through pipe, features with high measurement accuracy, low pressure drop, anti-blocking, stable operation and long service life. The product can be widely used in central heating/cooling and district heating/cooling systems for thermal energy measurement of residential, commercial and office building.


  • High-quality fully enclosed ultrasonic element ensure accuracy and stability of flow measurement
  • Using high-quality PT1000 temperature sensors, calibrated and matched to an accuracy better than +/- 0.1 ° C.
  • Casing protection class IP68.
  • Can be installed horizontally or vertically, and the head is detachable.
  • With M-bus / Modbus protocol interface, compatible with BMS for remote reading function. RS485 is optional.
  • Detachable battery case for quick replacement.
  • Can be mounted on supply or return pipe (specify when ordering);
  • Can be used for both heating and chilled water.

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Technical Specifications

Model UBM250I-T
Size (mm) 15 20 25 32 40
Dimensions L(mm) 110 130 160 180 200
  W(mm) 85 85 85 85 85
  H(mm) 105 105 115 125 130
Maximum flow rate (m3/h) 3 5 7 12 20
Optimal flow rate (m3/h) 1.5 2.5 3.5 6 10
Minimum flow rate (m3/h) 0.03 0.05 0.07 0.12 0.2
Battery Power 3.6V DC
Battery life > 6 years (Lithium battery)
Accuracy grade 2.0 (+/- 2%)
Communication protocols Infrared port, M-BUS / Modbus / Bacnet / GPRS / Wifi
Working pressure 16 Bar (231 PSI)
Protection class IP 68
Fluid temperature range 4~95 deg C
Differential temperature range 3~70 deg C
Temperature sensor cable length 1.5m
Data storage Storing historical data for 18 months

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