The remote differential pressure transmitter is a device where a capillary tube connects the differential pressure transmitter with the measured equipment. It is a type of remote sensing device installed on pipelines or containers to sense the measured pressure. This pressure is transmitted to the transmitter body through the silicone oil (or other liquids) inside the capillary tube. The pressure or differential pressure is then converted into a 4–20mA DC signal (with HART digital communication overlay) or PROFIBUS-PA communication signal output by the δ chamber and amplification circuit board within the transmitter body. When paired with a hand-held communicator that conforms to the HART protocol, they can communicate with each other for setting and monitoring.

The ZDS4833 remote differential pressure transmitter (flat diaphragm type) has various types of remote sensing configurations. Its main structure is the same as that of a differential pressure transmitter and is used for measuring liquid levels. It is widely used in industries such as petroleum, chemicals, power, food, paper-making, and municipal engineering.

Technical parameters:

Measurement range: 2.5Kpa ~ 500Kpa

Span ratio: 20:1

Power supply: 10.5V ~ 45V DC (Intrinsic safety barrier power supply. ≤ 30V DC)

Output: 4mA ~ 20mA DC and HART communication; PROFIBUS-PA communication

Ambient temperature:-40 ℃ ~ 85 ℃

Medium temperature:-40 ℃ ~ 300 ℃ (filled with silicone oil)

Accuracy: ≤(0.005r +0.071)%

Temperature drift: ≤(0.1r +0.2)%(-10 ℃ ~ 60 ℃)

≤(0.1r +0.15)%/10 ℃(-40 ℃ ~-10 ℃; 60~85 ℃)

Long-term drift: ≤ 0.2 r%/5 years

Enclosure protection class: IP67

Explosion-proof grade: Ex iaIICT6 or Ex dIICT6

Anti-corrosion: according to different media to select the corresponding measurement department material

Selection table: