How to Calibrate a Pressure Transmitter

What is Calibrate a Pressure Transmitter?

Calibrate a Pressure Transmitter is an important step to help pressure transmitters make accurate measurements. Only when the input and output are debugged together can it be called a true calibration. Including the pressure of the input transmitter, A/D conversion circuit, and loop current output circuit.

Pressure transmitter calibration is what you need to do before you install the pressure transmitters.

Calibrate a Pressure Transmitter

Pressure Sensor Calibration Case Share. The customer purchased a batch of high-frequency dynamic pressure sensors from our company. According to customer requirements, the accuracy of our pressure sensor is ±0.25% FS.

After the pressure sensor was produced, it was delivered to a third-party inspection company. The accuracy of the high-frequency dynamic pressure sensor was verified. As a result of the verification, the accuracy of our high-frequency dynamic pressure sensors has reached ±0.20% FS, and a calibration certificate is attached.

About High-Frequency Dynamic Pressure Sensor

The customer purchased our SI-90 high-frequency dynamic pressure sensor.

SI-90 High-Frequency Dynamic Pressure Sensor

The use of micro-machining technology makes the effective size of integrated silicon chips small, high natural frequency, and excellent elastic properties. Comprehensive performance is better than piezoelectric dynamic pressure sensors. It is the first choice for dynamic pressure measurement.

Measuring range


Overload capacity

2 times full scale pressure (where the overpressure of 100MPa product is 1.1 times full scale pressure)

Type of pressure

Gauge pressure or absolute pressure

Measuring medium

Gas or liquid compatible with 316 stainless steel

Comprehensive accuracy

±0.1 %FS



Natural frequency




Transmitter bandwidth




Rise Time




Long-term stability

Typical: ±0.1%FS/year

Maximum: ±0.2%FS/year

Operating temperature

Generally -40℃~85℃

Special can be -10℃~250℃

Zero temperature drift

Typical: ±0.02%FS/℃

Maximum: ±0.05%FS/℃

Sensitivity temperature drift

Typical: ±0.02%FS/℃

Maximum: ±0.05%FS/℃

Power supply range

12~36VDC (generally 24VDC)

±15VDC standard switching power supply

Signal output

4~20mA / 1~5 V DC / 0~5V DC

Load Resistance


Shell protection

The cable is IP67 and the connector connection is IP65

Vibration error

≤±0.01%FS (X, Y, Z axis, 200Hz/g)

Interface and shell

Stainless steel 1Cr18Ni9Ti



Sensor diaphragm

Stainless steel 316L

Guess You’ll Like: Explosion Proof Pressure Transmitter

Pressure Transmitter Calibration Equipment

According to the description in “JJG882-2004 Pressure Transmitter Verification Regulations”. A pressure transmitter is an instrument that converts a pressure variable into a standardized output signal that can be transmitted. And there is a given value between its output signal and the pressure variable Continuous function relationship (usually linear function). Mainly used for the measurement and control of industrial engineering pressure parameters. Differential pressure transmitters are often used for flow measurement.

There are two types of pressure transmitters: electric and pneumatic. The standardized output signals of electric motors are mainly 0mA~10mA and 4mA~20mA (or 1V~5V) DC signals.


The two-wire pressure transmitter is a kind of electric type. Calibration should be carried out according to “JJG882-2004 Pressure Transmitter Verification Regulations”. The required equipment is as follows:

  1. One DC 24V power supply;
  2. One mA ammeter;
  3. One voltmeter;
  4. One standard pressure gauge;
  5. One pressure source;
  6. One piston pressure gauge (4 and 5 are optional when this option is available).

At present, the digital pressure calibrator integrates various functions such as DC24V, voltage measurement, current measurement, on-off measurement, etc. The equipment is constantly developing towards intelligence and miniaturization.

For example, you only need to configure the ConST273 intelligent digital pressure calibrator and the ConST100 series pressure pump. You can complete the HART intelligent pressure transmitter, ordinary pressure transmitter, precision pressure gauge, general pressure gauge, pressure controller, and other pressure instruments. Verification work.

Read more about: What Are 0-10V Pressure Transducers?

Pressure Sensor Calibration Certificate

Extended reading: Static pressure vs dynamic pressure vs total pressure

About the Third-Party Testing Company

The qualifications of the testing company are as follows:

More Featured Pressure sensors:

SI-303 Low-Pressure Transducer
Low pressure transducers for air and non-corrosive gases low pressure measurement. 0 ~ 2.5kPa to 0 ~ 30kPa measurable.
SI-350 Sanitary Pressure Transmitter
Sanitary Pressure Transmitter, also called tri clamp pressure transmitter,
is the pressure transducer with the flush diaphragm (flat membrane) as the pressure sensor.
SI-300 Pressure Transducer 4-20mA/Voltage
The 4-20mA/ Voltage Pressure Transducer,
also called pressure transmitter 4-20mA,
is a pressure sensor with4-20ma/Voltage output.
SI-390 Industrial Pressure Transmitter
Pressure transmitters for general industrial applicaitons. -0.1kPa ~ 0 ~ 0.01kPa ~ 100MPa ~150MPa. 0.1% FS, 0.25% FS, 0.5% FS. 4-20mA (2-wire system), 0-5 / 1-5 / 0-10V (3-wire system)
SI-520 Digital Pressure Sensor
Digital Pressure Sensor is particularly suitable for use in computer control systems. RS485 half-duplex working mode.
SI-302 OEM pressure sensor
OEM pressure sensors from Chinese manufacturer. Silicone filled. Protected by stainless steel diaphragm. Suitable for a variety of fluid media.
SI-703 Flush diaphragm pressure sensor
Flush membrane / diaphragm structure, anti-blocking design. Pressure measurement of viscous media.
SI-10 Liquid pressure sensor
Liquid pressure sensor is widely used for pressure measurement of various liquids. Like water or oils. IP68 waterproof.

How Do You Calibrate a Smart Pressure Transmitter?

Related blogs:

What does SCADA stands for?

What does SCADA stand for? SCADA is the abbreviation of Supervisory Control And Data Acquisition. Namely data acquisition…

What is a PID controller?

What is a PID controller? A PID controller is an instrument used in industrial control applications to regulate…

Steam Pressure Transmitter

Steam pressure transmitters are widely used in the measurement and control of various high-temperature steam piping systems. The…

Cryogenic Pressure Transducers

Cryogenic pressure transducer for low temperature pressure measurement.  -196℃~+125℃、-260℃/-350c(especial). Sino-Inst offers a variety of Pressure Sensors for pressure…

Sino-Inst offers over 20 Pressure sensors. A wide variety of  Pressure sensors options are available to you. Such as free samples, paid samples. Sino-Inst is a globally recognized manufacturer of Pressure sensors, located in China.

Of course, according to your requirements, we can also provide Pressure Sensor Calibration Case: Third-party Calibration Certificate.

Sino-Inst sells through a mature distribution network that reaches all 30 countries worldwide. Pressure sensors products are most popular in Europe, Southeast Asia, and Mid East. You can ensure product safety by selecting from certified suppliers. With ISO9001, ISO14001 certification.

This entry was posted in Pressure Measurement Sloutions by KimGuo11. Bookmark the permalink.

About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.