Seeking pressure measuring instruments
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This post was last edited by symc on 2019-10-17 08:05. Seeking pressure measuring instruments: The basic requirements are as follows: 1. 0.1Pa.a~1Pa.a； The error is within ±5% of the measured value ； , with a resolution of less than 0.01 Pa ； 2、1Pa.a~10Pa.a ； The error is within ±5% of the measured value ； , with a resolution of less than 0.01 Pa ； 3, 10Pa.a~100Pa.a ； The error is within ±5% of the measured value ； , with a resolution of less than 0.1 Pa ； 4、100Pa.a~1000Pa.a ； The error is within ±5% of the measured value ； , resolution less than 1Pa ； 5、1kPa.a~10kPa.a ； The error is within ±1% of the measured value ； , resolution less than 1Pa ； 6, 10kPa.a~100kPa.a ； The error is within ±1% of the measured value ； , resolution less than 1Pa ； The above is just a preliminary division; it would be better if your capacity could be larger... Please get in touch with me. The above instruments are used for testing vacuum equipment in our laboratory. In addition, high-precision low-pressure pressure switches are also required on a regular basis. The pressure switches we use typically serve to control pressures within the range of 500 Pa.a to 5 kPa.a, with specific values determined according to the requirements of each order. Please contact me. The above error requirements and tolerance values can be slightly higher, but must not exceed 1 time. It would be best to also provide high-precision measurement of the minimum pressure down to 0.01 Pa.a.
Things like ceramic hammer egg-shaped devices, pressure transmitters, and digital pressure gauges – most of the pressure values referred to by these common pressure instruments denote gauge pressure, differential pressure, or negative pressure. Only a very small fraction of them relate to absolute pressure. Among the products with absolute pressure capabilities, the majority are those designed for atmospheric pressure in the range of 60–110 kPa, while products with an absolute pressure range of 10 kPa or 5 kPa have extremely low sales volumes. . . In the range below 5 kPa of absolute pressure, such instruments are no longer classified as pressure instruments; rather, they are considered absolute vacuum instruments. You’ve come to the Haichuan Chemicals Forum to ask about absolute pressures of 10 Pa, 1 Pa, 0.1 Pa, and 0.01 Pa – you’ve come to the wrong place. Go and ask about the absolute pressure of Shangyi Chuan Yi: 10 Pa, 1 Pa, 1 Pa, 0.01 Pa. You must have entered the wrong toilet. You can even get lost in a restaurant or a toilet – look how unreliable you are. So, asking you to get lost is actually helping you. :P I’ll help you; you don’t need to thank me or repay me. You are my karmic burden, and I am here to free you from it. :Lol, the instrumentation technicians at the chemical plant – they have no experience with that question regarding gauge pressure, no interest in it, and aren’t motivated to deal with it. Look, days have passed and no one has paid any attention to you. Get lost. :lol
It is used for testing in vacuum experiments, not at absolute pressure
For amounts over 100 pa, we can handle it; feel free to get in touch