Capacitance Type Differential Pressure Transmitter, 4-20mA Output

The capacitive differential pressure transmitter has a fast response capability. When powered on, the response time is less than 2 seconds, and the measurement data can be output quickly and stably. At the same time, its sensitivity is extremely high, with a lower limit value and range change of less than 0.01%, which can accurately capture small pressure fluctuations.

Features

• Capacitance type differential pressure transmitter is accurate and stable, with few parts and a stable structure. It can adapt to complex working conditions and is durable for a long time.
• The differential pressure transmitter has strong anti-interference performance and can effectively reduce the impact of external electromagnetic interference.
• The capacitive differential pressure transmitter is equipped with a high-brightness LCD display and a reliable LCD screen to ensure clear and readable data.
• The differential pressure transmitter uses a protective electrical interface to enhance sealing and reduce external environmental interference.
• It supports positive and negative migration, has data recovery function, adapts to different measurement needs, and improves maintenance convenience.

Specification

Note: Please leave the product range, power supply, signal output, and connection thread specifications to the customer service before ordering.

Dimension (mm) and details

Wiring diagram

Two-wire current output wiring diagram

Installation

Tips: Working principle of capacitive differential pressure transmitter

The capacitance type differential pressure transmitter measures differential pressure through the cooperation of the pressure-sensitive diaphragm and the capacitive sensing element. One side of the pressure-sensitive diaphragm is connected to high pressure and the other side is connected to low pressure. As the differential pressure changes, the diaphragm will deform slightly, causing the capacitance of the capacitive sensing element to change. The change in capacitance value is proportional to the differential pressure, and the circuit converts this change into a current signal for remote monitoring and control systems.

The pressure transmitter usually has a temperature compensation function to reduce the impact of temperature fluctuations on measurement accuracy, and is calibrated to ensure the accuracy of the output signal. Its advantages are fast response speed and good stability. It is suitable for precise differential pressure measurement under complex working conditions and is widely used in industries such as petrochemicals, HVAC, and energy.