High and low temperature low pressure test chamber requirements for inspection equipment:
Temperature measuring instrument: The temperature measuring system consisting of platinum resistance, thermocouple sensor and secondary instrument should meet the measurement requirements under low pressure conditions, and the extended uncertainty of the measurement result (k=2) is not greater than the temperature allowed. 1/3 of the deviation.
The platinum resistance sensor shall comply with Class A of IEC60751 and the thermocouple sensor shall comply with GB/T16839.1.
The 50% response time of the sensor in air should be between 10s and 40s, and the response time of the temperature measurement system should be no less than 40s.
Low-pressure measuring instrument: The barometer (meter) used, the expanded uncertainty of the measurement result (k=2) is not more than 1/3 of the allowable deviation of the measured gas pressure.
Noise measuring instrument: A sound level meter with an A-weighted network, whose measured uncertainty (k=2) is not more than 1 dB.
Portable Air Compressor For Car,Portable Air Pump For Car Tires,Best Air Pump For Car,Best Car Tyre Inflator
SHENZHEN SMARTNEWO TECHNOLOGY CO,. LTD , https://www.newopump.com