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DOWESTON® is a premium instrumentation and sensor brand serving customers worldwide. DOWESTON® is dedicated to bringing users a reliable, easy-to-use, efficient and advanced inspection and measurement experience.Here you will find all contact options at a glance:
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Clamp Type Intelligent Differential Pressure Transmitter
Clamp Type Intelligent Differential Pressure Transmitter
Clamp Type Intelligent Differential Pressure Transmitter
Clamp Type Intelligent Differential Pressure Transmitter

PD-750W Series

Clamp Type Intelligent Differential Pressure Transmitter
PD-750W Single Flange Differential Pressure TransmitterCombined with the new expanded monocrystalline silicon sensor components, standard HART protocol and temperature compensation technology, convert the differential pressure value change into a linear standard current signal, with extremelyhigh precision and repeatability, vibration resistance, and a wide measurement range for all kinds ofmechanical equipment, project engineering theFluid, gas media differential pressure measurement with field programming and display function、Multiple information output , to meet the needs of different working conditions.
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Performance Features

Product Performance:
PD-750W clamp block intelligent differential pressure transmitter It can convert physical differential pressure parameters such as gas and liquid sensed by the load cell sensor into standard electrical signals (such as 4~ 20mA, Hart, etc.) to supply secondary instruments such as indicating alarms, recorders, regulators, etc. for measurement, indication and process adjustment. Widely used in various industrial automation environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, electric power, ships, machine tools, pipelines and many other industries.


Field of application:

PD-750W clamp-type smart differential Pressure transmitters are widely used in water plants, oil refineries, sewage treatment plants, construction, light industry, machinery and other industrial fields to achieve multi-parameter measurement of liquids, gases, and steam.

■ Fully sealed, fully isolated single crystal silicon pressure sensor with high accuracy .

■ The 24-bit CPU achieves high precision and fast response, and the display module can 360° rotation, friendly key parameter operation function

■ Powerful personal protection, the safety guard of the transmitter, even if After lightning and thunder, it still maintains stable operation.

■ High-strength metal electrical protective housing for harsh environments .

■ No mechanical moving parts and less maintenance.

■ Fully isolated magnetic induction structure to meet explosion-proof requirements for safe operation on site specification.

■ Rugged and high quality stainless steel process flange, extra thick reinforcement It is a strong guarantee for high static pressure and high overload

Technical parameters

Product parameters:

Applicable media Dry gas, gas, liquid, slightly corrosive liquid, viscous liquid
input voltage 12-36V DC
output 4-20mA, RS485, Hart, etc.
Operating temperature  -35-125°C
Overload pressure 150%FS
bursting pressure 300%FS
error alarm Self-diagnostic program detects fault, analog output is higher than 20.8mA or lower than 3.8mA, alarm, high/low flag is adjusted by HART communication
ambient temperature


response time <1ms  (10...90%FS)
refresh time 0.25S
Damping constant Electrical damping is 0-32S, which can be adjusted at 0.1S intervals
service life >1*10^8 pressure cycles
Liquid contact material Stainless Steel 316L (PTFE, PP covered), Hastelloy C, Monel, Tantalum
shell material cast aluminum alloy, stainless steel
Protection class Electrical part IP67
Electrical connections

Terminal wiring, M20*1.5 screw hole*2

electrical protection Overload/Reverse Phase Protection
Explosion proof Explosion-proof ExdIICT6, intrinsically safe ExiaIICT4
Installation method G1/2, G1/4, NPT1/2, NPT1/4, M20*1.5 internal and external thread, national standard flange (GB/T 9119- 2010)
weight Approx. 2.4kg 
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