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Differential Pressure Transmitters

Differential pressure transmitters from Aplisens are manufactured for a comprehensive range of applicable and will measurement the differential pressure of gases, vapors, liquids and slurries. Our range of differential pressure transmitters are also ideal for other applications like flow, level & density. SMART software enables many complex functions like square root, quadratic and user defined. Aplisens's APR Differential pressure transmitters are also available with their sophisticated dual sensor technology that keeps the accuracy at the published accuracy for 6 years! This is a astonishing level of stability that alternative technologies will struggle to match. Coupled with Aplisens's standard 5 year warranty, you can count on Aplisens's APR differential pressure transmitters to deliver.

Also see: Differential pressure switches, Pressure transmitters, Hydrostatic level transmitters, Instrument & manifold valves

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APR-2000 Differential pressure transmitterAPR-2000ALW - Smart Differential Pressure Transmitter
Aplisens

              • Static pressure up to 413 bar
              • HART or Profibus PA
              • Accuracy: 0.075% (0.05% on request)
              • 316SS housing as option
              • SIL 2, IECEx, MID, PED and others
              • Programmable Multi line display and keypad
              • 5 Year warranty

              Data sheet IECEx Certificate

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APR-2000SS Differential pressure transmitterAPR-2000ALW/SS - Smart Differential Pressure Transmitter in 316SS housing
Aplisens

              • 316SS housing
              • HART or Profibus PA
              • Accuracy: 0.075% (0.05% on request)
              • SIL 2, IECEx, MID, PED and others
              • Programmable Multi line display and keypad
              • 5 Year warranty

              Data sheet IECEx Certificate

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PRE-28 - Differential pressure transmitter - general purposePRE-28 - General Purpose Differential Pressure Transmitter
Aplisens

              • Static pressure up to 413 bar
              • Ship building approvals
              • SS housing & wetted parts
              • 10.5 to 36 VDC Supply
              • IECEx approval

              Data sheet

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AS-dP - Low cost differential pressure transmitterAS-dP - Low Cost Differential Pressure Transmitter
Aplisens

              • Choice of range from 1 bar to 25 Bar.
              • G, NPT and Metric threads
              • Multiple outputs including: 4-20mA & 0-10 VDC
              • SS housing and wetted parts

              Data sheet

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APR2000 Flanged differentil pressure transmitter

APR-2000ALW - Smart Differential Pressure Transmitter c/w single diaphragm seal
Aplisens

              • Choice of diaphragm seal.
              • HART, Profibus PA, IECEx, SIL, DNV, PED & more
              • 316SS housing
              • Programmable Multi line display and keypad
              • Choice of diaphragm seal type and material
              • Supplied complete.

              Data sheet IECEx Certificate

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LLow pressure differential pressure transmitterAPR-2000GALW - Smart Differential Pressure Transmitter for ultra low pressure
Aplisens

              • Ranges down to 0.2 mbar
              • HART or Profibus PA
              • 316SS housing as option
              • Configurations for ambient pressure measurement
              • Programmable Multi line display and keypad
              • IECEx approval

              Data sheet

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Differential pressure transmitter - Dual diaphragm seal APR-2200ALW - Smart Differential Pressure Transmitter with dual seals
Aplisens

              • 0.1% Accuracy
              • HART or Profibus PA
              • 316SS housing as option
              • SIL 2 certificate
              • Programmable Multi line display and keypad
              • IECEx Ex'd & Ex ia

              Data sheet IECEx Certificate

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Differetinal pressure transmitterAPRE-2000 - Smart Differential Pressure Transmitter
Aplisens

              • Static pressure up to 413 bar
              • Accuracy: 0.1%
              • Ranges down to 2 mbar
              • 4-20 mA, HART compatible
              • SS housing

              Data sheet

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Differetinal pressure transmitter - low pressure

APRE-2000G - Smart Differential Pressure Transmitter for Very Low Pressures
Aplisens

              • Accuracy: 0.1%
              • Ranges down to 0.2 mbar (0.02 kPa)
              • 4-20 mA, HART compatible
              • SS housing

              Data sheet

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Differetinal pressure transmitter - low pressureAPRE-2000G.N - Smart Differential Pressure Transmitter in PVC, IP65, housing
Aplisens

              • Local display and keypad for programming
              • Measurement spans down to 0.2 mbar
              • Accuracy: 0.1%
              • 4-20 mA, HART compatible
              • IP65 Plastic housing
              • Ideal for ambient monitoring

              Data sheet

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Differential pressure transmitter - general purpose, low pressure range

PRE-50G - General Purpose Differential Pressure Transmitter for low pressures
Aplisens

              • Full scale ranges down to 0.25 kPa
              • Any range from 2,5mbar to 100 mbar
              • Multiple outputs including: 4-20mA & 0-10 VDC
              • SS housing & wetted parts

              Data sheet

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Application Examples

Monitoring of Filter Element:
The differential pressure transmitter is et up to monitor across the filter element as shown. By monitoring the pressure difference between the inlet and outlet side we can extract a condition of the element

A differential pressure increase across the element can indicate that a filter is blocked, dirty or needs to be serviced. Constantly monitoring the filter with a differential pressure transmitter enables predictive maintenance of the filter along with immediate indication of a problem.

 

 

 

 

 

 

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Level Measurement in Pressurised Vessel
When using pressure to infer level we need to ensure the process pressure doesn't effect our calculation. To do this the high side of a differential pressure transmitter can be connected to the top of the vessel so any fluctuation of pressure from the process, vapors or other can be subtracted from the measurement. Whats left is a differential pressure measurement relative to the height of fluid above the low side of the differential pressure transmitter.


 

 

 

 

 

 

 

 

 

 

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Clean Room Ambient Pressure

Clean rooms are a controlled environment consuming alot of air. The room needs to be kept at a consistent temperature, humidity and pressure to maintain the quality of the environment for workers, equipment and product.

Clean rooms are often kept above or below ambient pressure to prevent contaminants from entering or leaving the room via doors, windows or other gaps. A suitable Differential pressure transmitter will monitor the internal room pressure relative to outside so operators and control systems can respond accordingly to an undesirable reading.

A suitable differential pressure transmitter for a clean room applications needs to be accurate at very low levels of pressure, often pascals.

 

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