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Electronic Pressure Measurement Datasheet TTF-1 Page 1 of 2 Datasheet TTF-1 1/2011 R Special Purpose Thin-Film OEM-Pressure T ransducer T ype TTF- 1 Possible versions of the TTF-1 Pressure T ransducer Applications n Applications with limited installation space n Embedded pressure sensors n Design-in solutions n Hydrauli c pressure monitoring Special Features n Thin-lm technology n Pressure ranges from 0 ... 10 bar to 0 ... 1000 bar (150 to 15,000 PSI) n Stainless steel wetted parts n Media temperature range: -40 °F ... +212 °F (-40 °C ... +100 °C) n Integrated temperature compensation Description Flexible installation The compact size the TTF-1 pressure transducer allows it be used in applications where mounting space is very limited. Rugged sensor element The TTF-1 sensor is machined from a single piece of stain- less steel. The thin lm Whea tstone bridge is applied to the diaphragm using a physical vapor deposition process called “sputtering”. This process forms a tight molecula r bond with the sensor diaphragm. This eliminates the risk of “sensor creep” that may occur over time with bonded foil strain gauge designs that use an adhesive to bond the sensor to the diaphragm. The high grade stainless steel design of the sensor element provides a stainless steel barrier between the sensor element and the media. This completely welded, dry measuring cell does not require the use of any internal pressure transmis- sion uid. TTF-1 sensors constru cted of Elgiloy are av ailable for special requiremen ts. The sensor element is welded directly to the pressure port. This eliminates the use of soft sealing materials that may deteriorate and leak ov er time. It also eliminates weak points that sometimes occur when o-rings or adhesive joints seals are used. Excellent all-around performance The TTF-1 provides is temperature compensated from -40 °F ... +212 °F (-40 °C ... +100 °C), so that in most applications no additional temperature compensation is required. The pressure transducer oers high overpressure safety and is resistant to pressure spikes and dynamic pressure changes. In addition the TTF -1 is an excellent sensor for applications where high accuracy, zero point stability and low temperature error are essential requiremen ts. Individual customer designs Based on many years of production experience , WIKA can provide customer-specic designs for quantities above 1000 pieces.
