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Measurement Technology for Polymer Applications
Busch Electronics is proud to be the Exclusive Stocking Distributor of Gneuss Measurement Technology products for the states of North Dakota, South Dakota, Minnesota, Iowa, and Wisconsin. If you're not already familiar with Gneuss, please take a few minutes to get to know the company better. We've also written a whitepaper discussing the different ways in which the accuracy of melt pressure sensors are rated. We think you will find it to be informative. If you want to know more about what sets a Gneuss melt pressure sensor apart from all of the competitors, please have a look at our page discussing the features of and benefits derived from Gneuss melt pressure sensors. If, after reading through all of the material we've put out here about the Gneuss measurement technology products, you're still not convinced that this is what you should be using, we've added a little incentive for you to try one out.
Measurement and Monitoring of Melt Pressure and Melt Temperature
Pressure Transducers • Temperature Sensors • Digital Display Units • Accessories
Measurement Technology
Gneuss Measurement Technology products for polymer processing industries meet the highest performance requirements. Top quality raw materials, constant and stringent quality control and advanced manufacturing methods mean that Gneuss products provide unsurpassed performance when it comes to accuracy, precision, durability, and value in melt pressure and melt temperature sensors.
The Gneuss Advantage...
- Longer Life Construction
- Quick Delivery
- High Quality, Robust Components
- Custom-Built Sensors
- Mercury Free Sensors Available
- Repair Program
- Worldwide Distribution
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Superior Value
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Premium Stainless Steel Diaphragm
Transducers for Pressure and Temperature
The assurance of product quality and reliability is of increasing importance in the plastics extrusion industry. Superior performance is now defined by absolute accuracy, extended life, and robust design for challenging environments.
Whatever you call them or whatever they are—melt pressure transducers, melt pressure transmitters, melt probes, pressure probes, or sensor probes—it doesn't matter: Gneuss manufactures a product of unsurpassed quality, accuracy, and precision that fits your application, fits your budget, and will give you the longest service life of any pressure measurement device available for plastic extrusion and compounding applications.
DA Series • 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 accuracy and reproducibility over time and throughout the rated temperature range are the prime contributors to their unsurpassed performance.
- Applications up to 400°C (752°F)
- Full Scale Pressure ranges from 250 p.s.i. to 30,000 p.s.i.
- Liquid filled measuring system
- Maximum reliability through new membrane technology
- Standard G-coating to counteract adhesive materials
- 100% market compatible
- NTX Mercury free version available
Product Variation Examples
Configuration Options
- 2mV/V or 3.33mV/V output signal
- Mercury filled or mercury-free NTX version
- 1/2" UNF 2A or M18 x 1.5 process connection
- Special materials and additional coatings for diaphragms
- Thermocouples and RTD's for optional temperature measurement
DAI Series • Transducer with Integrated Amplifier
In addition to maximum reliability, the DAI Series offers 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 4-20 mA configuration provide unequalled immunity to electromagnetic 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 (752°F) possible
- Standard G-coating to counteract adhesive materials
- Maximum reliability through new membrane technology
Product Variation Examples
Configuration Options
- Accuracy 0.25% or 0.5% of full scale
- 0-20 mA, 4-20 mA or 0-10V output signals
- Mercury or mercury free capillary fill media
- 1/2" UNF 2A or M18 x 1.5 process connection
- Special diaphragm materials and coatings available
- Thermocouple and RTD's available as option for temperature measurement
- Special shaft lengths and cable exits (Fixed connection IP68) possible
- Length of flexible component selectable
DAP Series • Transducer with Heated Tip
The DAP series incorporates a heated sensor tip, which eliminates 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 the "frozen" 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
- Long life design
Product Variation Examples
Configuration Options
- Accuracy 0.25% of full scale
- 2.00 mV/V or 3.33 mV/V standard output signal
- With integrated amplifier 0-20 mA, 4-20mA, or 0-10V output
- Mercury filled/ mercury free system
- Cable exit (fixed connection IP68) possible
- Thermocouple or resistance temperature detector
- Special designs per customer specifications
DAIX Series • Explosion Proof Transducer
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 (752°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
Product Variation Examples
Configuration options
- Mercury/ mercury-free version
- 1/2" UNF 2A or M18B 1/2 UNF
- Special diaphragm materials and coatings available
- Special shaft lengths and cable connections (fixed connection IP68) possible
- Length of flexible component is selectable
- HART communication, turn-down feature
- Pressure ranges from 250 p.s.i. to 30,0000 p.s.i. available
Gneuss' experience in the field of plastic melts lead them to develop these unique sensor products. The TF-MX series of metal melt temperature probes features a rheologically correct tip design in a robust sensor for measuring the temperature of the melt stream. Even highly viscous media are measured accurately. For the most accurate temperature readings avaialble, the TF-CX Series is unsurpassed. Featuring a thermally isolated, rheologically correct tip, the TF-CX is the only temperature sensor on the market that will give you true melt stream temperatures without offsets due to heat conduction from the extruder barrel.
TF-CX Temperature Sensor • Thermally Isolated Measurement Tip
The temperature sensors of the TF-CX Series are ideal for exact temperature measurements in highly sensitive medias. The ceramic isolation guarantees a direct reading of the melt temperature independent of the flange or tool location. The ceramic encases the measuring element and isolates it from the surrounding area. The design of the TF conforms to the recommended guidelines of the Plastics and Rubber trade association according to EUROMAP 31.
- Measuring tip isolation with high-performance ceramic
- Highly precise temperature measurement
- Plug connections with gold-plated contacts
- Extremely robust conical measuring element (rheologically optimized)
- Applications up to 500°C (932°F) media temperature
- 100% market compatible
- Ceramic insulated measurement tip
Product Variation Examples
Configuration Options
- Thermocouple Type J, L, K or resistance temperature detector PT 1000
- 1/2" UNF 2A or M18 process connection
- Special materials for measuring tip (abrasive or corrosive medias)
- Amplifier for Ex-areas (4-20 mA) with BUZ head
- Available as transmitter with 0-10V or 4-20mA in the TFI version
- Measuring tip length available from 0mm (0inch) (flush) to 25mm (1 inch)
TF-MX Temperature Sensor: All Metal Design
The TF-MX Series was developed in order to measure melt temperatures quickly and easily for all types of plastics. The temperature sensors are economical and versatile and impress with their robustness and reliability. The rheological characteristics of innumerable plastics were considered during the design procedure of the conical measuring tip, so that the temperatures of highly viscous medias can be ascertained without difficulty. Major advantages regarding the life-span and reliability of the sensor in comparison to sword sensors are ensured due to the correct installation procedure.
- Robust metal construction
- Special material for measuring tip
- Plug connections with gold plated contacts
- Rheologically optimized sensor tip
- Applications up to 500°C (932°F) media temperature
- 100% market compatible
- Maximum melt pressure 30,000 p.s.i
Product Variation Examples
Configuration Options
- Thermocouple Tpe J, L, K or resistance temperature detector PT 100
- 1/2" UNF 2A or M18 process connection
- Special materials for measuring tip (abrasive or corrosive medias)
- Amplifier for Ex-areas (4-20mA) with BUZ head
- Available as transmitter with 0-10V or 4-20 mA in the TFI version
- Measuring tip length available from 0mm (flush) to 25 mm (1 inch)
In addition to the industry's most unique, reliable, accurate, and precise pressure and temperature sensors, Gneuss also offers a selection of pressure and temperature indicators.
DMV 4000
The user friendly DMV 4000 series provides accurate measurement of melt pressure sensot output. With up to three configurable limit value contacts, the DMV 4000 offers the option of displaying up to three different values. Other outputs include optional analog current or voltage outputs including an RS-485 interface for serial communications. Easy programming via the five front panel push buttons simplifies operating procedures, and the password protected access control ensures tamper-proof operation of the instrument.
- 350 ohm strain gauge input
- 1/8 DIN size
- Adjustable sensitivity: 1mv/V ~ 4mV/v
- 1 to 3 freely adjustable limit value contacts
- Fail-Safe feature
- Universal supply voltage with option 24VDC operation
- Automatic measuring value calibration
- 5-digit dual color display changing from green to red when limits are exceeded
- 0-20mA, 4-20mA, or 0-10V output
- 3 year warranty
TMV 4
Gneuss' new TMV 4 multi-function display unit meets the demanding requirements of the plastics processing industries, and offers indication and re-transmission of the process values in current, voltage, potentiometer, resistance, and thermocouple signal.With up to two configurable limit value contacts, the TMV 4 offers the option of displaying up to two different values. Other outputs include optional analog current or voltage outputs including an RS-485 interface for serial communications. Easy programming via the five front panel push buttons simplifies operating procedures, and the password protected access control ensures tamper-proof operation of the instrument.
1/8 DIN size
Configurable display
2 freely adjustable limit value contacts
Fail-Safe feature
Universal supply voltage with option 24VDC operation
5-digit dual color display changing from green to red when limits are exceeded
0-20mA, 4-20mA, or 0-10V output
Field configurable input: Thermocouple-L, J, K, S, R, B, N, E, W, T, B; PT100 2 or 3 wire
UL 508 listed
EMC per EN61000-6-3/9/2
3 year warranty
