Pressure Transmitter

During the field use of differential pressure transmitters, how do we judge whether their working status is normal? Since most of the faults of differential pressure transmitters are zero drift and blockage of pressure pipes, the scale is rarely calibrated point by point on site, but the zero point and change trend of the differential […]

Pressure, temperature, velocity, angle, and other similar parameters are common non-electrical physical quantities that need to be measured in industrial settings. These physical quantities must be converted into analog electrical signals to be transmitted to the control room or display devices. The equipment that converts these physical quantities into electrical signals is collectively referred to

Positive migration moves in the positive direction, negative migration moves in the negative direction, and the distance moved is the migration amount. Therefore, the essence of positive and negative migration is to change the upper and lower limits of the range by adjusting the transmitter, while the size of the range remains unchanged. It can

The intelligent pressure transmitter (see picture) consists of three parts: measurement circuit, process connection and transmitter. The sensor part includes: capacitive sensor, measurement diaphragm detection circuit, temperature sensor and temperature compensation circuit; intelligent electronic board. The board part includes: microcomputer controller and peripheral circuit, which completes the conversion of pressure signal to 4~20mAde. Used to

1. General requirements ① The appearance of the instrument is in good condition, without paint peeling or loose parts. There are no defects that affect the use and measurement performance, and the dust cover is complete (except for the pressure gauge that does not allow the measured medium to escape from the gauge). ② Instrument

With the advancement of instrument technology, differential pressure transmitters of various brands are developing in the direction of high precision and intelligence. However, the advancement of technology has brought a misunderstanding to designers: when people choose a differential pressure transmitter, they often focus on the accuracy of the differential pressure transmitter and ignore the factors

In compressed air systems, pressure sensors and temperature sensors play a vital role. They can monitor the operating status of the system in real time and provide important data for system control and maintenance. However, in daily use, these sensors may experience various failures, affecting the normal operation of the system. Therefore, an in-depth understanding

We can see its detailed information on the transmitter’s nameplate: such as its operating voltage, accuracy level, and its range, etc. The pressure transmitter can convert the pressure value of the measured medium into a current value of 4~20 mA for output. 4 mA represents the 0 bit and 20 mA represents the full scale.

Open tank (unpressurized) measurement Regarding differential pressure level measurement, there are two main types of storage tanks: open (unpressurized) and closed (pressurized). Open, non-pressurized storage tanks are connected to the atmosphere; there is a clear path from the tank to the surrounding environment, and the air pressure acting on the liquid is equal to atmospheric

1. Sewage discharge is mainly aimed at differential pressure transmitters, pressure transmitters, float level gauges and other instruments. Since the measurement medium contains dust, oil, tiny particles, etc., which are deposited in the reverse pressure pipe (or deposited in the pressure sensing pipe), it is directly or indirect effects on measurement. The sewage discharge cycle