Pressure Sensor - Industrial - Type TPFAS | Gefran | Philippopoulos s.a.
Pressure Sensor - Industrial - Type TPFAS | Gefran | Philippopoulos s.a.

Pressure Sensor - Industrial - Type TPFAS | Gefran

Gefran TPFAS – Pressure Transmitter with Flush Diaphragm

The Gefran TPFAS is a pressure transmitter featuring a flush diaphragm constructed from 17-4PH stainless steel. It is designed for high-viscosity fluids, oils, rubber, slurries, chemical products, and applications where conventional transmitters with internal measuring chambers may clog or create dead volume.

Technical Data

  • Measuring ranges: 0…25 to 0…600 bar
  • Accuracy: ±0.5% FS
  • Overpressure: 3x FS
  • Burst pressure: 4x FS, up to 2000 bar
  • Response time: < 1 ms
  • Process temperature: -40…+120 °C
  • Temperature compensation: -10…+85 °C
  • Ingress protection: IP65 / IP66 / IP67 (depending on electrical connection)
  • Wetted parts: 17-4PH stainless steel

Signal Outputs

TPFAS provides amplified analog outputs: 4…20 mA, 0…10 Vdc, 0…5 Vdc, 1…5 Vdc, 1…6 Vdc, 1…10 Vdc, 0.1…5.1 Vdc, and 0.1…10.1 Vdc. The 4…20 mA output is preferred for field wiring to PLCs. Voltage outputs are used for short distances or controllers with compatible analog inputs.

Process Connections

Available connections: G 1/4 B front seal, G 1/4 E, and M10x1 E. Selection depends on installation point, available depth, sealing method, and the need to avoid material entrapment in front of the diaphragm.

Autozero Function

Autozero can be magnetic or external via CAL pin. Used after installation or mechanical stress, it allows zero correction without opening the device. Zero correction range is ±10% FS.

Applications

  • Dosing and mixing pumps
  • Concrete pumps
  • Lines with pastes, resins, sludges, or viscous oils
  • Machinery requiring a small flush diaphragm

Standards and Certifications

Compliance: RoHS 2011/65/EU, EMC 2014/30/EU, EN 50581:2012, EN 61326-1:2013, EN 61326-2-3:2013.

FAQ

When is TPFAS selected over TPF?
When a smaller flush diaphragm and amplified analog output to PLC are required.

Does it have an actuator?
No. It is a pressure measuring instrument; control is performed by PLC, controller, or automation system.

Datasheet and documents

Description

Technical specifications

Overview

TPFAS Series flush diaphragm pressure transmitters are based on bonded strain gauge on stainless steel technology.

Thanks to the strong flush diaphragm made with 17-4 PH stainless steel, TPFAS is particularly suitable for pressure measurement where the media is with high viscosity (thick fluids, oils, rubber, pulps, chemical products, etc.) and small size diaphragm is required while internal measuring chamber transducers cannot be used.

The high thickness of the diapragm makes the product very reliable and suitable for heavy industrial application.

Internal state of the art electronics allows a wide range of current and voltage signal outputs, as well as the innovative “Digital Autozero” function is able to perform an easy and quick automatic zero adjustment after the installation, simply with the touch of a magnetic pen or by short circuiting two pins on the electrical connector.

Description

  • Ranges: from 0…25 to 0…600 bar
  • Output signal 4…20mA 2-wires / 0.1…5.1Vdc / 0.1…10.1Vdc / 0…5Vdc / 0…10Vdc / 1…5Vdc / 1…6Vdc / 1…10Vdc
  • Protection rating: IP65/IP67
  • Wetted parts: 17-4PH Stainless Steel
  • Miniature flush fitting stainless steel measuring diaphragm
  • Magnetic or External Autozero function

Certifications

EU Conformity Declaration - TPFAS

UK Conformity Declaration - TPFAS