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Does the sensor type of a pressure transmitter determine its service life?

2009-04-20View Original

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Does the type of sensor in a pressure transmitter determine its service life? For example, capacitive and polysilicon sensors – I personally think that polysilicon sensors are not resistant to vibrations
Reply #22009-04-20
There are many types of pressure sensors, including capacitive, ceramic, diffused silicon, single-crystal silicon, and polycrystalline silicon ones. Generally speaking, all of the above sensors can be used for pressure measurement; however, their service life depends greatly on factors such as the medium used and the operating environment, so it’s hard to say which one is better or worse.
Reply #32009-04-22
What is a pressure gauge? What is its purpose?
Reply #42009-05-21
The temperature is 250 degrees, and the vacuum pressure is 1.6 kPa. The resin is drawn from a tank into the evaporation tank; after mixing, the liquid flows along the walls of the tank and into the tubes below. Vacuum is used to remove a component from the resin. The double-flange transmitter is installed in the pipe below. The flange of the negative pressure chamber has been subjected to continuous impact from liquid for a long time, resulting in one half becoming soft and the other half remaining hard. Ask if it can still be used. The height between the two flanges is 5300 MM, and an ABB transmitter is used with a range of -160 KPA to 160 KPA. It stopped working after a little over a year, and I was asked if there was an issue with the product selection. Are there any requirements for header installation? Also, the liquid level is maintained stable by using two frequency converters to control the pumps – one for feeding and one for discharging. Ask whether this control method is reasonable
Reply #52009-05-21
There must be a connection; in my opinion, diffused silicon is less shock-resistant than capacitors, and I wouldn’t want to offer opinions on other methods without proper knowledge

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