About the choice of differential pressure transmitter ， we should pay attention to the following questions when choosing differential pressure transmitter:

Question 1. Measuring range of differential pressure transmitter

This measurement range is one of the key factors in the purchase process, which affects the price.Then determine the maximum value of the measured pressure in the system. Generally speaking, choose a transmitter with a pressure range about 1.5 times larger than the maximum value.This is mainly because in many systems, especially in water pressure measurement and processing, there are peaks and continuous irregular ups and downs, such instantaneous peaks can damage pressure sensors.A continuously high pressure value or 50440 slightly beyond the transmitter's indicated maximum will shorten the life of the sensor, which will also reduce the accuracy.A buffer can be used to reduce pressure burrs, but this will slow down the sensor response.Therefore, the pressure range, accuracy and stability should be fully considered when selecting the transmitter.

Question 2. How accurate the differential pressure transmitter needs to be

In general, the main factors that determine the accuracy are hysteresis, nonlinearity, nonrepeatability, temperature, zero offset scale, and temperature effect.But mainly because of nonlinearity, non-repeatability, the higher the accuracy, the higher the price.The company's high precision differential pressure transmitter price guarantee low price.

Problem 3. Transmitter packaging

Transmitter packaging, often easily overlooked is its frame, but this point in later use will gradually reveal its defects.In the purchase of transmitters must think about the task of the future transmitter environment, humidity, how to install the transmitter, will not have a violent impact or vibration.

Question 4. What medium does the differential pressure transmitter measure

Viscous liquids and slurries will block the pressure interface, and solvents or corrosive substances will damage the transmitter or, more precisely, the material in direct contact with the medium.These factors will determine what material the differential pressure transmitter USES where it contacts the medium, or whether to choose a direct isolation film.

Question 5. How stable the transmitter needs to be after the timeout task

Large parts of the transmitter will "drift" after overmission, so it is necessary to understand the stability of the transmitter before purchase, and this kind of after-mission can increase the amount of trouble that will be shown in future application.

Question 6. Ambient temperature range of differential pressure transmitter

Usually, a transmitter will calibrate two temperature calibration segments, one of which is the normal task temperature, and the other is the temperature compensation field. The normal task temperature field refers to the temperature field when the transmitter is not destroyed in the task form, and it can not reach the functional target when it exceeds the temperature compensation field.

Combined with the above six elements, we will choose a suitable differential transformer.More pressure transmitter selection skills concerned about our company's website for detailed understanding!