Melt Pressure Transducers

The DA Series melt pressure transducers are characterized by their high quality of workmanship and outstanding performance and are used in the plastic manufacturing and processing industries throughout the world.

Their absolute reproducibility and stable measuring values contribute to our measurement accuracies.

• Application areas up to 400°C (750°F)
• Pressure ranges from 0-50 and 0-2.000bar (0-725 and 29,000 psi)
• Liquid filled measuring system
• Maximum reliability through new membrane technology
• Standard G-coating to counteract adhesive materials
• 100% market compatible
• Mercury free version available at no additional surcharge

The DAI Series offers - in addition to maximum reliability - improved user friendliness in the form of an Auto-Zero Function for local or remote configuration.

These models offer mA and mV output signals for further processing. The popular and most commonly used 2-wire and 4-20mA configuration provide unequalled interference in critical environments.

• Interference resistant signals over long distances
• Stable output signals
• No damage due to incorrect wiring configurations
• 3- and 4-wire technology available at no additional charge
• Applications with process medias of up to 400°C (750°F) possible
• Standard G-coating to counteract adhesive materials
• Maximum reliability through new membrane technology

The DAIH "Heavy Duty" sensor incorporates all the features of the DAI Melt Pressure Transmitter range but features an extremely heavy duty sensor tip for highly abrasive media. This sensor is characterised by particularly good resistance where polymers with for example a high level of abrasive filler and high viscosities are processed.

• Interference resistant signals over long distances
• Stable output signals
• No damage due to incorrect wiring configurations
• 3- and 4-wire technology available at no additional charge
• Applications with process medias of up to 400°C (750°F) possible
• Standard G-coating to counteract adhesive materials
• Maximum reliability through new membrane technology
• Gneuss special diaphragm surface treatment (standard) against sticky media
• Diaphragm recessed by 0.5 mm
• Reinforced diaphragm
• Measurement diaphragm specified for 200 % of measurement range

The DAIL fulfils the requirements of EN 1114-1 for overpressure protection of extrusion lines and offers maximum comfort of operation.

The auto-zero function enables calibration directly on the device or from the observation point/controller. On the output side, the melt pressure transmitter provides a switch output in addition to the analog signal which enables switching off the machine in case of overpressure according to EN 13849-1, PL=c.

• Switch output for overpressure protection
• Switch-off pressure freely selectable
• Analog output mA or V
• Performance Level c according to EN13849
• TÜV certified
• G-coating to counteract adhesive materials
• Compatible with common OEM sensors
• Longlife design

The DAIP Series incorporates a heated sensor tip, which limits the potential for sensor damage relating to the membrane, resulting from installation or removal of the pressure transmitter. Additionally it offers the comfort of the DAI series in combination with temperature measurement, allowing for heater control.

The Gneuss patented heated sensor tip allows the sensor to be easily removed from a undquot;frozenundquot; melt without any problems. The diaphragm is not damaged when the polymer contracts. The DAIP has revolutionized the handling of critical medias, for example PC, PMMA or ABS.

• Heater with 24V
• Patented technology
• Maximum reliabilty through new membrane technology
• G-coating to counteract adhesive materials
• Robust design with G-Armor flexible components
• Applications with process medias of up 400°C (750°F) possible
• Pressure ranges from 0-50 and 0-2.000 bar (0-725 and 29,000 psi)
• Interference resistand signals over long distances
• 3- and 4-wire technology available
• With integrated amplifier 0-20 mA, 4-20 mA, or 0-10 V output

With the DAIX Series, Gneuss now has an explosion proof pressure transducer available. This melt pressure transducer is intrinsically safe.

The uncompromising development of the DAIX provides an excellent choice for Ex-areas, complimenting years of tried and tested Gneuss products.

• 0,25% accuracy of full scale
• Ex II 1G Ex ia IIC T4
• 2 wire technology with 4-20 mA output
• Interference resistant signals over long distances
• Applications with process medias of up to 400°C (750°F) possible
• Developed in accordance with requirements of the Plastics and chemical industry
• Pressure range selection via turn-down feature (multi-range)
• Auto-Zero Function (local / remote) accessible

The DAP Series incorporate a heated sensor tip, which limits the potential for sensor damage relating to the membrane, resulting from installation or removal of the pressure transmitter.

The Gneuss patented heated sensor tip allows the sensor to be easily removed from a undquot;frozenundquot; melt without any problems. The diaphragm is not damaged when the polymer contracts. The DAP has revolutionized the handling of critical medias, for example PC, PMMA or ABS.

• Heater with 24V
• Combined pressure- and temperature measurement
• Highly tough design with flexible components
• G-coating to counteract adhesive materials
• Patented technology
• Removal possible even when extrusion line is down or at ambient temperature
• Longlife design

The DTA defines the industry standard in combination with temperature measurement. One process connection suffices to measure both values.

The unit excels in its high quality workmanship and cost efficiency. Its absolute reproducibility and stable measuring values contribute to our measurement accuracies.

• Liquid filled measuring system
• Maximum reliability through new membrane technology
• Standard G-coating to counteract adhesive materials
• Combined pressure and temperature measurement
• Robust design with G-Armor flexible components
• Applications with process medias of up to 400°C (750°F) possible
• Pressure ranges from 0-50 and 0-2.000 bar (0-725 to 29,000 psi) available
• Stable output signals
• Longlife Design

The DTAI first of all offers the user the comfort of operating a DAI in combination with temperature measurement. One process connection suffices in order to measure both values.

These model offers mA and V output signals for further processing. The popular and most commonly used 2-wire and 4-20 mA configuration provide unequalled interference in critical environments.

• Liquid filled measuring system
• Maximum reliability through new membrane technology
• Standard G-coating to counteract adhesive materials
• Combined pressure and temperature measurement
• Robust design with G-Armor flexible components
• Applications with process medias of up to 400°C (750°F) possible
• Pressure ranges from 0-50 and 0-2.000 bar (0-725 to 29,000 psi) available
• Interference resistant signals over long distances
• Stable output signals

The DTAIL defines the industry standard in combination with temperature measurement. One process connection suffices to measure both values.

The unit excels in its high quality workmanship and cost efficiency. Its absolute reproducibility and stable measuring values contribute to our measurement accuracies.

• Liquid filled measuring system
• Maximum reliability through new membrane technology
• Standard G-coating to counteract adhesive materials
• Combined pressure and temperature measurement
• Robust design with G-Armor flexible components
• Applications with process medias of up to 400°C (750°F) possible
• Pressure ranges from 0-50 and 0-2.000 bar (0-725 to 29,000 psi) available
• Stable output signals
• Longlife Design
• Integrated temperature measurement