Absolute and gauge pressure transmitters and switches

Differential pressure measurement technology is used to measure gauge pressure, level or flow in applications with liquids, pastes and gases. With a wide range of sensor technologies, Endress + Hauser offers instruments that are perfectly suited to any kind of application.




Pressure transmitter with ceramic measuring cell


Ceramic measuring cell principle

The ceramic sensor has no filling oil, meaning that process pressure acts directly on the ceramic frame and bends it. The change in capacitance is function of the pressure applied between the ceramic membrane electrodes. The measuring range is defined by the width of the process ceramic insulation frame.

ADVANTAGE

Excellent corrosion resistance

Dry measuring cell, no filling fluid

Great wear resistance

For void measuring even in high temperatures

High temperatures up to +150 °C /+302 °F

Measuring accuracy ± 0,5 / 0,3% in basic models, ±0,1% as standard and ±0,05 / ±0,025% high performance models



PRODUCTS


Cerabar T PMC11/PMC21

General applications
Economical pressure transmitter with ceramic sensor without filling oil.

Cerabar M PMC51

Process applications
Standard digital pressure transmitter with ceramic sensor without oil.

Cerabar S PMC71

Challenging and high-precision applications
High performance digital pressure transmitter with ceramic sensor without oil.







Pressure transmitter with polysilicon measuring cell (metallic)


Metallic cell measuring principle

Working pressure bends the isolation frame process and a filling fluid transfers pressure to a resistance bridge (semiconductor tech). The bridge’s tension change is measured and processed.

ADVANTAGE

Metallic measurement cell in different materials and process connections available

Suited for high pressure use 700 bar (up to 1050 bar)

Temperature up to +125 °C /+257 °F

Measuring accuracy ± 0,5 / 0,3% in basic models, ±0,1% as standard and ±0,05 / ±0,025% in high performance models

Designed according to norm IEC 61508 for use in safety systems SIL2/3



PRODUCTS


Cerabar T PMP11/PMP21/PMP231

General applications
Economical pressure transmitter with metallic sensor totally welded.

Cerabar M PMP51

Process applications
Digital pressure transmitter with metallic sensor totally welded.

Cerabar S PMP71

Challenging and high precision applications
High performance digital pressure transmitter with metallic sensor totally welded.







Pressure Transmitter with separating seal (chemical)


Measuring principle

In case the measurement has to be done in extreme conditions, it can have several separating seals that can be mounted either directly or using capillary extension tubes. They can be used for a product temperature of between -70 and 400 °C (-94 to 752 °F), they are insensible to aggressive products, very slimy, crystallizers or polymerizers and are ideal for diffcult access measuring points.

ADVANTAGE

Great variety of process connections and different membrane materials

New TempC membrane minimizes influence due to environment and process temperature fluctuation

Top security thanks to second line of defense with security functions SIL 2/3, IEC 61508 certified

High temperatures up to +400 °C /+752 °F

Measuring accuracy ±0,075



PRODUCTS


Cerabar M PMP55

Process applications
Pressure transmitter with metal diaphragm seal is typically used in process and hygiene applications.

Cerabar S PMP75

Demanding applications
Pressure transmitter with metal diaphragm seal is typically used in process and hygiene applications.







Pressure switches with ceramic or polysilicon cell (metallic).


Measurement principle

Ceraphant provides safe measurements and reliable monitoring of absolute and relative pressures in gases, steam and liquids. The different versions of process connection offer fast, simple and safe process integration. The standard version of the Ceraphant includes an illuminated indicator. The measured values are displayed together with the corresponding physical unit.

ADVANTAGE

Integrated switching electronics for low-cost decentralized process monitoring and control

Function check and information in the field thanks to LEDs and digital display

Threaded or sanitary connections to process

Measuring range -1 to + 400 bar (-15 to 6000 psi)

Withstands temperatures from -40 °C to +100 °C (-40 to +212 °F)

Measurement accuracy ± 0.5 / 0.3%



PRODUCTS


Ceraphant PTC31B

General applications ceramic cell
Economical switch with oil-free ceramic sensor for measurement in gases or liquids.

Ceraphant PTP31B

General applications polysilicon cell
Economical switch with fully welded metal sensor for measurement in gases, steam or liquids.

Ceraphant PTP33B

Polysilicon cell sanitary applications
Economical switch with fully welded metal sensor for hygienic applications.

ECN Automation
offers comprehensive solutions.

Contact us