Dew point meter calibration

I am the sofa! Ha ha! Sir, I may not be able to help you much. (ㄒoㄒ-_-|| | Cold mirror type, never used. Electrolytic type, trace water analyzer from Chengdu Instrument Factory. Without calibration, record the background value when turning on the machine, and subtract the background value from the measurement result. (To be honest, it’s rough. It can be used in situations where the requirements are not high, such as situations where changing trends are more important than accuracy.) Capacitive, Shente XPDM portable dew point analyzer. The instrument comes with a drying chamber. When offline (not measuring), push the sensor into the drying chamber to maintain a -80°C dew point. ； During calibration, drop in water drops (very few) from the special drip port, and the instrument automatically calculates the dew point in this state (+20°C saturated moisture) to complete automatic calibration. (Be careful when dripping. If there is too much water, the sensor will be destroyed! ) Sir, even if the measurement principles of instruments from different manufacturers are the same, the specific designs are vastly different. ； When designing an instrument, manufacturers will have reasonable considerations on whether and how to calibrate it, and provide methods (if it cannot be done, no one will use the product). Therefore, reading the instructions and information carefully and understanding the principle, structure, and performance of the instrument are the prerequisites for good use of the instrument. Hope this helps.

Usually, a water generator is used to record the coefficient value (correction factor). This is standard, and the others are considered corrections.

Dear friends, have you ever used the German dp300 dew point meter? Our company bought two but they cannot be used. Please share with us if it is useful.

Can the German dp300 dew point meter be used? Ask: Does the dp300 measure pressure dew point or normal pressure dew point?

Dew point meters basically measure normal pressure dew point. You need to use a standard humidity generator for calibration. You can usually measure high-purity nitrogen yourself. If it is less than -69 degrees Celsius, there is no big problem.

Professional sales of dew point meters, welcome everyone to call and communicate! 15913270499

There are professional calibration institutions where you can calibrate your own liquid, but buying standard gas is very troublesome.

1.5 Maintenance and repair of dew point meter 1.5.1 The dew point meter is a precision optical instrument. Correct and reasonable use and storage have a great impact on the accuracy and life of the instrument; 1.5.2 Avoid direct sunlight and disassemble the instrument without permission; 1.5.3 Each fine adjustment should be turned gently and do not use excessive force. Do not touch the lenses and optical sheets with your hands; 1.5.4 If the instrument is faulty, it should be repaired by someone who is familiar with the structure of the instrument or the repair department; 1.5.5 After each use, the instrument should be wiped clean and kept dry. 　　1.6 Precautions: 　　1.6.1 When standing up a ruler, you should stand behind the level ruler and hold the ruler with both hands to keep the ruler vertical; 1.6.2 The front and rear sight distances can be estimated by the number of steps first, so that the front and rear sight distances are approximately equal; 1.6.3 Before reading, the light should be carefully aligned to eliminate parallax; 1.6.4 Rough leveling should not be performed during the observation process. If the bubble of the circular level deviates, the instrument should be leveled and re-observed; each reading should be finely leveled; 1.6.5 After the measurement is completed, it should be checked immediately. Once the error exceeds the limit, the measurement should be re-measured immediately.