Pressure transmitters, also called pressure transducers, are pressure measuring instruments that convert the pressure change into a proportional standard output signal. There are many different types of pressure transmitters but what MicroSensor offers and specializes in are the piezoresistive pressure transmitters. Pressure transmitters must give a long-term, consistent and stable performance, and high accuracy. Simultaneously, pressure transmitters need routine maintenance and calibration to guarantee optimal performance. The level of accuracy required, the pressure measuring range, the housing material, the pressure ports as well as the output signals will vary based on every customer's unique requirements.
As a pressure transducer manufacturer, MicroSensor provides a wide range of pressure transmitters and transducers for process control, marine, and industrial gases, food and beverage, HVAC and telemetry, etc. The pressure transmitter ranges from 0.1bar to 1000bar, outputs 0.5V~2.5V DC / 0.5V~4.5V DC / 4mA~20mA DC, etc. These pressure transmitters are certificated with ATEX explosion-proof, Exd as well as UL and are suitable for hazardous environment use. Custom design is available.
Digital pressure transmitters and pressure transducers output digital I2C, RS485, MODBUS, and HART signals for applications. MicroSensor offers low power consumption digital pressure transmitters with a 3.3V power supply. The pressure ranges from 0.07bar to 1000bar. Digital pressure transducers with high precision are suitable for tank monitoring, agriculture irrigation, hydropower plant applications, etc.
Differential pressure transmitter is for low range pressure measurement for air and gases. The low-pressure range can be 10 mbar, the best accuracy of the differential pressure transmitter can be ±0.075%FS. It can be widely used in the chemical, gas and oil filed. MicroSensor also offers a differential pressure transmitter for oxygen pressure measurement, specializing in gas pressure measurement in medical oxygen production equipment and oxygen storage tanks.
The pressure transmitter is also known as a pressure transducer in some areas, the main components include a pressure sensor as the sensing element for pressure measuring, a circuit part for the signal process, and housing with optional materials such as stainless steel 316L, etc., according to the different working environment. The pressure transmitter and pressure transducer can directly measure pressure levels and differences in many applications.
There are different pressure types of pressure transducers and transmitters: gauge pressure, absolute pressure, and differential pressure.
Gauge Pressure: It takes the atmospheric pressure as the reference point. Since the atmospheric pressure may vary according to different locations, a gauge pressure sensor is needed to ensure accurate pressure measurement. Generally, a gauge pressure sensor has a vented tube connecting atmosphere pressure as a reference point to measure the media pressure.
Absolute Pressure: It takes the perfect vacuum as the reference point. A formula shows the difference between gauge and absolute pressure:
Absolute pressure = gauge pressure + atmospheric pressure
Differential Pressure: The pressure difference between two points or systems is known as differential pressure. A gauge is a specific differential pressure in that one pressure is always atmospheric.
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