Pressure Transmitter For Water, Gas, Vacuum

WHAT IS A PRESSURE TRANSMITTER?

A pressure transmitter is a device that has been designed to measure pressure in liquids, fluids or gases.

And transfer the pressure date in to the electric signal to the PLC or the cotrol device. They are commonly used to measure pressure inside industrial machinery, in order to alert users before an incident occurs. They have a wide range of different uses, mostly of an industrial or automotive nature.
It’s a sub-group of pressure transducers, feature additional reset and calibration options. With some sensor types it is possible, for example, to re-set the measuring span over large ranges. They work by taking pressure and converting it into an analogue electrical signal.

The diffrerence between the pressure transducer and pressure transmitter?
A transducer is a device that converts one form of energy to another.
For example, an electrical transducer converts a sensed physical variable like temperature into an analog electrical signal.
Transmitter
A transmitter is a device that converts the electrical signal from the transducer into a much larger electrical signal that can be sent over a long distance to a PLC or a DCS.

T1030 High Precision Pressure Transmitter

Model: T1030-A4-1.0-M-0.25-H-1/4

T1050 High Accuracy Pressure Transmitter

Model: T1050-A4-1.0-M-0.25-H-1/4

T1700 Vacuum Pressure Transmitter

Model: T1700-V0-1.0-M-0.25-H-1/4

T1800 High Temperature Pressure Transmitter

Model: T1800-V0-1.0-M-0.25-H-1/4

T2000W Water Pressure Transmitter

Model: 3V100 S

Applications of Pressure Transmitters

Pressure transmitters are routinely used in a wide range of industrial sectors. Offshore drilling and oil exploration commonly utilize pressure sensors to measure differential values between the interior and exterior of pressure sensitive equipment. Distinct parameters must be maintained to ensure drilling and acquisition processes are carried out to an ethical and efficient standard. This is also true of on-shore petrochemical, gas, and chemical facilities.

Numerous industries use pressure-sensitive transportation and storage devices to maintain optimal product conditions, which must be accurately monitored to ensure safe delivery and eventual application. Laboratories also use pressure sensors to measure the relative pressure of vacuum chambers to the atmosphere, supporting a limitless range of emerging studies.

Work Principle

The process pressure and reference pressure act, respectively, on the two ends of the pressure-sensitive assembly of the integrated silicon, and the differential pressure makes the silicon wafer deform. The displacement of the deformation is extremely small (microns).

The full dynamic Wheatstone bridge on silicon wafer is driven by an external current source, and the output voltage is in the millivolt level, which is proportional to the pressure. Because of the excellent strength of silicon material, the linearity and variation index of the output signal are very high.

In operation, the transmitter converts the measured physical quantity into a voltage signal (mV). That’s sent to the differential amplifier with high magnification and can counteract the temperature drift.

Next, the amplified signal is transformed into the corresponding current signal by the voltage- and current-conversion unit. Via nonlinear correction, the standard current and voltage signal, which is linear with the input pressure, is generated.

The pressure transmitter can be divided into a general pressure transmitter (0.001 ~ 20 MPa) and micro differential pressure transmitter (0 ~ 30 kPa).

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