High sensitivity particle sensor for field test equipment

摘要

PURPOSE:To test the performance of the high-sensitivity particle sensor and to measure particulate concentration in an actual site by providing a particle concentration measurement part, a flow rate measurement part, a signal processing means, and an output means for data, and providing a signal processing function. CONSTITUTION:When the field operation of the high-sensitivity particle sensor 17 is tested, the air-suction side joint 12 of the testing device 1 is connected to an air suction pump connected to the sensor 17 and the air-outlet side piping 19 of the sensor 17 is connected to the air-outlet side joint 10 of the device 1. Then air flows in from the air intake 8 of the device 1 by opening a-b parts of selector valves 9 and 11 and is sucked by the air suction pump through an air filter 7, the valve 9, a particle concentration measurement part 2, a flow rate measurement part 3, valves 11 and 24, and the air suction joint 12. Then the valve 24 is operated to adjust a read value of a manometer 23 to a value in a normal use state, then a flow rate displayed on a display part 5 is read. When the read suction air flow rate is different from a standard value, a flow rate control valve attached to the air suction pump is adjusted to re-adjust the flow rate to the standard value.