PRESSURE TRANSDUCERS AND TRANSMITTERS

More than fifty years of experience, and being an organisation with a strong focus on the customer’s needs and constant technological innovation have made Gefran a benchmark in the design and production of sensors, systems and components for industrial process automation and control. Expertise, flexibility and process quality are the factors that distinguish Gefran in the production of integrated tools and systems for specific applications in various fields of industry, with consolidated know-how in the plastics, mobile hydraulics, heating and lift sectors. Technology, innovation and versatility...

PRESSURE TRANSDUCERS A pressure transducer is an electronic device that transforms a physical variable (pressure) into an electrical signal (current or voltage), acquired by various control, measurement and regulation devices such as controllers or PLCs. Gefran sensors are capable of measuring fluid and gas pressure in all applications required by the industry. The Gefran Group relies on a unit dedicated exclusively to the design and production of a full range of sensors capable of measuring pressure, displacement, force, humidity and temperature. Based on know-how gained over years of activity...

PRESSURE TRANSDUCERS AND TRANSMITTERS APPLICATION SECTORS PLASTIC AND RUBBER BLOW MOULDING INJECTION PRESSES MACHINES HYDRAULICS AND HYDRAULIC POWER PACKS FARMING AND EARTHMOVING MACHINERY AUTOMOTIVE TEST BENCHES ENGINE TEST ROOMS STEAM TREATMENT PLANTS EQUIPMENT TEST BENCHES MATERIALS TESTING MACHINES HEAT EXCHANGE SYSTEMS ATEX: INTRINSIC SAFETY METHANE GAS DISTRIBUTION SYSTEMS METHANE GAS COMPRESSORS

BEYOND TECHNOLOGY Gefran offers an extensive range of transducers for pressure measurement in all industrial applications. Models are available for special and high-precision applications, also for use in particularly heavy duty and demanding environments, such as mobile vehicles. The TPF/TPFADA series adopts a state-of-the-art technical solution with a very sturdy flush steel measuring diaphragm. This makes the product unique and particularly suitable for pressure measurement in very dense and aggressive fluids and pastes. In addition, the new TPFAS series introduces new membranes miniaturised...

PRESSURE TRANSDUCERS AND TRANSMITTERS GEFRAN manufactures both transmitters and transducers with the following electrical outputs: • CANopen CiA DP 3.01 rel.4.0 and DS406 with the following special features - Selectable baud rate from 10KBaud to 1MBaud - IO-Link digital output version 1.1 - COM3 high-speed communication (230.4 kBaud) Gefran sensors are capable of measuring fluid and gas pressure in all applications required by the industry. Gefran offers a complete range for measurement from 0...50 mbar to 0...5000bar, for relative and absolute pressures.

TECHNOLOGY Gefran uses one of the most widespread and proven existing measurement principles, the so-called “Wheatstone Bridge”. There are a number of different technologies for making the sensitive element on the basis of this principle. THICK FILM ON STEEL TECHNOLOGY Using the “screen printing process” technique, the insulating layers (dielectric), the conductive layer (cermet) and the resistive layer are deposited on the steel membrane to create the “Wheatstone bridge”. The thickness of the membrane determines the measurement range, and the step-by-step transition from 200°C to 900°C makes...

PRESSURE TRANSDUCERS AND TRANSMITTERS The new KS/KH/KM/KMC series represents the best solution for all applications, both hydraulic and pneumatic, requiring a pressure transducer and offering not only competitive price but also high performance and reliability. The KS series is supplied with SIL2 certification according to IEC/EN 62061 in accordance with Machinery Directive 2006/42/EC. The KS/KH/KM series for applications on mobile vehicles and the KX series for potentially explosive areas are also available with the same SIL2 certification. The concepts Safety Integrity Level (SIL) and Performance...

PRESSURE TRANSDUCERS MAIN TECHNICAL CHARACTERISTICS MEASUREMENT RANGES BURST STRENGTH SAMPLING TIME MEASURING PRINCIPLE PROPERTIES Thick film of sensitive element deposited on steel membrane OPERATING TEMPERATURE (PROCESS) RANGE COMPENSATED TEMPERATURE RANGE ZERO DRIFT IN COMPENSATED FIELD Thick film of sensitive element deposited on steel membrane Thick film of sensitive element deposited on steel membrane ± 0,01% FS/°C typical (± 0,02% FS/°C max.) ± 0.01% FS/°C typical (± 0.02% FS/°C max.) TRANSDUCER BODY CONSTRUCTION MATERIAL Stainless steel Stainless steel Stainless steel Stainless steel...

MEASUREMENT RANGES SAMPLING TIME < 1 msec MEASURING PRINCIPLE PROPERTIES Thick film of sensitive element deposited on steel membrane Thick film of sensitive element deposited on steel membrane Thick film of sensitive element deposited on steel membrane OPERATING TEMPERATURE (PROCESS) RANGE -40...+125°C COMPENSATED TEMPERATURE RANGE -20...+85°C ZERO DRIFT IN COMPENSATED FIELD ± 0,01% FS/°C typical (± 0,02% FS/°C max.) TRANSDUCER BODV CONSTRUCTION MATERIAL Stainless steel Stainless steel PARTS IN CONTACT WITH THE PROCESS Fluids compatible with AISI 430F and 17-4 PH stainless steel Fluids compatible...

BEYOND TECHNOLOGY MODEL TPS TPSA MEASUREMENT RANGES ACCURACY ± 0.15% FS (typical) (±0.5% FS for absolute ranges) OVERPRESSUREBURST STRENGTHRESPONSE TIME < 4 msec MEASURING PRINCIPLE PROPERTIES Silicon piezoresistive Thick film of sensitive element deposited on steel membrane OPERATING TEMPERATURE (PROCESS) RANGE -20...+85°C (-4...+185°F) COMPENSATED TEMPERATURE RANGE ZERO DRIFT IN COMPENSATED FIELD (± 0.02% FS/°C max) ranges >1 bar ± 0.04%FS/°C (typical) ranges < 1 bar ± 0.01% FS/°C (typical) (± 0.02% FS/°C max.) ± 0.008% FS/°C (typical) (± 0.015% FS/°C max.) TRANSDUCER BODY CONSTRUCTIONMATERIAL...