Endress+Hauser Pressure Transducer PMC131

Endress+Hauser Pressure Transducer  PMC131 

Endress+Hauser Pressure Transducer  PMC131 

 Application
Cerabar T is a pressure transducer for measuring absolute
pressure and gauge pressure in gases, vapors, liquids and
dusts.
Hygienic and threaded connections are available as
process connections.
Your benefits
This compact pressure transducer impresses with its
well-engineered construction:
• High reproducibility and long-term stability.
• Finely graduated measuring ranges from vacuum up to
400 bar/6000 psi.
• Ceraphire ceramic sensor: corrosion-proof, abrasionproof
and extremely overload-resistant.
• Deployed for pressure monitoring up to SIL 2 as per
IEC 61508/IEC 61511-1

Endress+Hauser Pressure Transducer  PMC131

Sensors

– Dry capacitance ceramic sensor (Ceraphire) for

Endress+Hauser Pressure Transducer  PMC131

 Measuring principle PMC131
The measuring pressure causes a slight deflection of the ceramic diaphragm of the sensor. The pressureproportional
change in capacitance is measured at the electrodes of the ceramic sensor. The ceramic sensor is
a dry sensor, i.e. no fill fluid is required for the pressure transfer. This makes the sensor completely suitable for
vacuums. Extremely high stability, comparable with the material Alloy, is achieved by using ultrapure
Ceraphire as the ceramic.
Endress+Hauser Pressure Transducer  PMC131
The process pressure acting upon the metallic separating diaphragm of the sensor is transmitted to a resistance
bridge via a fluid. The pressure-proportional change of the bridge output voltage is measured and processed
further.
Endress+Hauser Pressure Transducer  PMC131
The process pressure acting upon the metallic separating diaphragm of the sensor is transmitted to a resistance
bridge via a fluid. A differential amplifier creates a standard signal from the pressure-proportional change in
output voltage of the bridge. A comparator with an adjustable hysteresis compares this signal with the pre-set
switch point and then activates the transistor output. 

Standards and guidelines DIN EN 60770 (IEC 60770):
Transmitters for controlling in systems used in industrial process technology
Part 1: Methods for evaluating the operating behavior.
DIN EN 61003-1, Edition:1993-12
Systems used in industrial process technology; Devices with analog inputs and two-point or multi-point
behavior; Part 1: Methods for evaluating the operating behavior.
DIN 16086:
Electrical pressure measuring devices, pressure sensors, transmitters, pressure measuring devices
Terms, specifications in data sheets.
IEC 60592
Degrees of protection provided by enclosures (IP-Code).
EN 61326:
Electrical equipment for control technology and laboratory application – EMC requirements.
IEC 61010
Safety requirements for electrical equipment for measurement, control and laboratory use.
NAMUR
Association for Standards for Control and Regulation in the Chemical Industry

Contact Information
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