Development and successful production of a large-capacity air leak meter with a range exceeding 2000L/min-Hunan Xiangyi Power Testing Instrument Co., Ltd.

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Development and successful production of a large-capacity air leak meter with a range exceeding 2000L/min

Publication Time:

2019-11-05

Author:

Source:

From October 2018 to October 2019, our technical personnel, through arduous efforts, successfully localized the measurement instrument for air leakage in large diesel engines exceeding 10000 kW, and simultaneously developed a calibration device for ultra-large-range air leakage measurement instruments exceeding 2000 L/min, filling a domestic gap and breaking the monopoly of similar foreign products. Eight units have already been delivered to a major domestic diesel engine company. Their performance and parameters are fully comparable to imported products, receiving positive user feedback.

　　• Range: ≥2000L/min (Range ratio 1:50)

　　• System sampling frequency ≥50HZ

　　• Measurement accuracy: ≤±0.5%F.S

　　• Repeatability: ≤±0.25%F.S

　　• Linearity: ≤±1%F.S

　　• Response time: ≤1s

　　• Measurement stability: ≤±1%F.S

　　• The instrument can automatically correct the zero point of the flow rate and has a multi-point linearization table for segmented correction of parameters.

　　• The instrument has 4-20mA or 0-10V analog output interfaces with signal ground isolation.

　　• Communication interface: RS232 or CAN, selectable baud rates of 2400, 4800, 9600, 19200 b/s

　　• The instrument has alarm protection function and can output alarms by setting parameter limit values.

　　• Applicable diesel engine power: no less than 10000kW