differential air pressure sensor diff pressure sensor

Description

The working principle of the differential pressure transmitter transfers the differential pressure taken by the standard throttling parts (nozzles, orifice plates, venturi tubes) to the isolation diaphragm on both sides of the transmitter through the pressure pipes on both sides of the differential pressure transmitter, and then transmits the differential pressure signal to the measuring element through the sealing fluid (silicone oil, fluoro oil) in the diaphragm, and then the measuring element will convert the differential pressure signal into the corresponding electrical signal and transmit it to the converter, Finally, it is transformed into standard electrical signals (1~5V, 4~20mA) after being processed by operational amplifier and other units.

Generally, the installation site of the differential pressure transmitter is far away from the control room. In order to ensure that the signal is not distorted during transmission, the standard current signal of 4~20mA is generally used as the transmission signal, and the contact signal in the control room becomes 1~5V.

Feature

• Ranges from -25/+25Pa to -10000/+10000Pa (according to models)
• Auto zero manual calibration
• Voltage, current, digital signal output
• Standard accuracy <±1% FS
• IP65 house protection
• When ≤100Pa,accuracy＜±3%FS±2Pa

Application

• HVAC system
• Pharmaceutical clean rooms
• Electronic clean rooms
• Medical clean rooms
• Commercial buildings
• Public transport hub

Technical data

Dimension

Measuring range adjustment

Output setting(3 wire Model)

Manual Zero-point correction

Ordering guide

KDP110-Range-Output

Nanjing Qiyuan Controls & Equipment Co., Ltd. was found in 1998.

In 2005, the number of the employees increased to more than 100.

In 2006, its manufacturing base was moved to Huai An Industrial Development Zone.

Keram Controls has obtained the investment from Keram Group in 2009.

In 2014, business expands to electrical components and appliance, and changed its name to Keram (Nanjing) Electrical Equipment Co., Ltd.