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Ultrasonic heat meter electronic module
Ultrasonic calorimeter is an instrument used to measure and display the heat released (absorbed) by a heat (cold) liquid flowing through a cold heat e
Product details
Ultrasonic calorimeter is an instrument used to measure and display the heat released (absorbed) by a heat (cold) liquid flowing through a cold heat exchange system. It mainly consists of ultrasonic flow sensors, microprocessors, and paired temperature sensors.
The ultrasonic heat meter is a high-performance, low-power electronic heat meter developed and designed with reference to European standards EN1434 and OIML-R75 international regulations. Complies with the CJ128-2007 "Heat Meter" product standard issued by the Ministry of Construction of China. M-BUS or wireless remote communication protocol complies with CJ/T128-2004 standard.
basic function
TECHNICAL INDEX
| flow sensor | Specifications | Common traffic | Minimum flow rate | maximum flow | |
| DN15 | 1.5 m3/h | 0.03 m3/h | 3.0 m3/h | ||
| DN20 | 2.5 m3/h | 0.05 m3/h | 5.0 m3/h | ||
| DN25 | 3.5 m3/h | 0.07 m3/h | 7.0 m3/h | ||
| Minimum Display Flow | 0.01m3 (when in use); 0.00001m3 (during calibration) | ||||
| Minimum displayed heat | 1kWh (when in use); 0.001kWh (during calibration) | ||||
| temperature sensor | temperature range | 4℃~ 95℃ | |||
| Maximum temperature difference | 3℃~ 90℃ | ||||
| Minimum display temperature | 0.1℃ | ||||
| Quiescent current | < 7μA | ||||
| Battery life | >8 years | ||||
| LCD display number of digits | 8 digits | ||||
| Maximum cumulative working time | 4.2x109 hours (only the last 8 significant digits can be displayed when working time>99999999 hours) | ||||
| Maximum cumulative traffic | 4.2x109 m3 (When cumulative flow>999999.99 m3, only the last 8 significant digits can be displayed) | ||||
| accuracy class | class ii | ||||
| pressure resistance | 1.6MPa | ||||
| pressure loss | ≤ 0.025 MPa | ||||
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