Intelligent differential pressure, gauge pressure, and absolute pressure transmitters,It mainly consists of pressure measuring components, sensors, measurement circuits, and process connectors. It can convert the received pressure signals of gases, liquids, etc. into standard current and voltage signals (4-20mADC) to supply secondary instruments such as indicator alarms, recorders, regulators for measurement, indication, and process adjustment.Composed of primary circuit, magnetic ring, Hall element secondary coil, amplifier, etc. When the magnetic flux generated by the primary current IP is concentrated in the magnetic circuit through a high-quality magnetic core, the Hall element is fixed in the air gap to detect the magnetic flux. The reverse compensation current is output through a multi turn coil wound on the magnetic core to cancel out the magnetic flux generated by the primary current IP, so that the magnetic flux in the magnetic circuit always remains zero. After special circuit processing, the output terminal of the sensor can accurately reflect the current changes of the primary current. With the continuous development of modern industrial technology, current detection is widely applied in the field of industrial control. Industrial control has high requirements for the accuracy and response speed of current detection. At the same time, it is hoped to achieve * isolation from the detected object. Hall current sensors effectively solve these problems. Hall current sensors, with their excellent performance and sophisticated structure, have become a solution for current isolation measurement in the field of industrial control, and are widely used in applications such as drivers, frequency converters, motor windings, and high-frequency high current measurement.

There are three ways to represent pressure, namely: pressure, gauge pressure, negative pressure, or vacuum degree.

(1) Pressure is the actual pressure that an object is subjected to, with its zero point being vacuum.

(2) Gauge pressure refers to the difference between pressure and atmospheric pressure.

(3) Vacuum degree refers to the negative value of the gauge pressure (i.e. negative pressure) when the pressure value is less than atmospheric pressure.

technical parameters

Accuracy of 0.075%, range ratio of 100:1;

Gauge pressure: Calibration range from 2.5inH2O to 2000psi;

Absolute pressure: calibration range from 0.167 psi to 4000 psi;

Process isolation membrane: stainless steel, Hastelloy C ®， Tantalum (* CD, CG) and gold-plated Monel;

Measurable negative pressure.