OEM-version, Thin-film technology
The compact size of the pressure transducer TTF-1 allows it to be used in applications where mounting space is very limited. Rugged sensor element
The pressure transducer TTF-1 sensor is machined from a single piece of stainless steel. The thin film Wheatstone bridge is applied to the diaphragm using a physical vapor deposition process called "sputtering". This process forms a tight molecular 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 transmission fluid. Pressure transducer TTF-1 sensors constructed of Elgiloy are available for special requirements. The sensor element is welded directly to the pressure port. This eliminates the use of soft sealing materials that may deteriorate and leak over time. It also eliminates weak points that sometimes occur when o-rings or adhesive joints seals are used.
Excellent all-around performance
The pressure transducer TTF-1 provides 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 TTF-1 offers high overpressure safety and is resistant to pressure spikes and dynamic pressure changes. In addition the pressure transducer TTF-1 is an excellent sensor for applications where high accuracy, zero point stability and low temperature error are essential requirements. Individual customer designs
Based on many years of production experience, WIKA can provide customer-specific designs for quantities above 1000 pieces. Pressure transmitters, transducers and sensors are often used interchangeably throughout our industry by colleagues and customers.