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The main purpose of the duct leakage air volume tester is to detect whether the tightness quality is qualified
.
It is suitable for testing the amount of air leakage in ventilation and air conditioning pipes, air conditioners, fire valves, regulating valves and other places in buildings, medical laboratories, large computer rooms and other public works ventilation and air conditioning systems
.
Advantages of duct leakage air volume tester: 1, high precision: flow measurement element using industrial-grade standard throttling device, and by the national department of real flow calibration, the measurement accuracy is better than 1.
0 level
.
2, wide range: the innovative use of segmented instrument design, so that the measurement range as low as 0.
3Nm ?/h, large 860Nm?/h
.
3, high integration: this product adopts the form of a trolley, in a limited space integrated flow measurement module, fan, measuring tube, PID regulation module, PLC controller, differential pressure / static pressure measurement module, temperature measurement module, touch screen and other parts
.
4, easy to operate: the whole process of verification is operated on the touch screen, the process is simple, the operation is convenient, through the touch screen and PLC cooperation, automatic voltage stabilization, automatic detection, automatic evaluation of detection results, etc
.
5, high strict grade: this product can measure the tight grade, on the basis of A, B, C, D grade, increase the E grade, to meet the domestic and upper standards
.
Duct leakage air volume tester test method Seal the duct test section to be tested
.
First of all, the fan supply hose and the duct test section of the test fan are connected, and then a small hose is connected to the inclined pressure gauge on the tester in the duct test section, and then the fan of the tester is started, so that the speed of the stepless adjustment fan is from slow to fast, and the pressure of the duct test section is also increased
.
When the pressure rises to 500Pa required for the test, it is stabilized, at which time the leakage air volume of the test section is equal to the supplementary air volume of the fan, and the reading of the negative pressure is directly displayed on the tilt manometer
.
