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Conax Technologies offers a complete line of dependable, ruggedized RTDs, ranging from thin film platinum sensors to wire wound sensor configurations available in platinum, nickel and copper. We can provide the RTD configuration to suit your specific needs, from trimmable RTDs, which provide added field installation flexibility, to fast response RTDs, for applications where response time is critical.
RTD assemblies can be provided with a wide variety of termination styles and mounting fittings to meet the needs of your application. Conax Technologies also offers numerous sensor tolerances, sheath diameters and sheath materials. This section outlines the key choices needed to specify the correct Conax Technologies part description for your needs. In each case, you will be asked to select the:
*sensor element to meet your operating conditions and specifications
*sensor tolerance
*lead configuration corresponding to the number of leads your application requires
*sheath material and size
*termination style
*optional mounting configuration
*sheath length
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Evikon MCI manufactures wide range of sensor assemblies for temperature measurement in gases and air, liquids and on solid surfaces for different applications.
ET20x series push-in resistance temperature probes are intended for measuring temperatures in liquids and gases. Applications include heating and cooling installations, building and industrial automations, labs.
- PTC1000 sensor versions up to +150°C
- Pt100 or Pt1000 sensor versions up to 260°C or 500°C
- AISI 316 acid-proof steel stem
- Ø4 or Ø6 mm lenght 50 up to 1000 mm
- PVC (<105°C), FEP (<205°C) or with fiberglass insulation (<400°C) cable
- Adjustable flanges, compression fittings and thermowells
- Individual 4-20 mA transmitter option
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- Tip-sensitive (260°C) feature fast-responding copper tip in stainless sheath.
- Mineral insulated (600°C): Stable and rugged for demanding industrial environments.
- High temperature (850°C): Laboratory grade precision in an industrial probe.
- Diameters options include 0.125", 4 mm, 0.188", 0.215", 6 mm, 0.250"
- Single and dual elements
- Wide selection of adjustable fittings, thermowells, and connection heads available from stock
- Cut-to-length option lets you adjust probe length in the field
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Watlow’s platinum resistance elements are specially designed to ensure precise and repeatable temperature versus resistance measurements. The sensors are made with controlled purity platinum wire and high purity ceramic components, and constructed in a unique strain-free manner.
Features
Wide temperature range of -200°C (-328°F) to 650°C (1200°F)
Specialty RTDs available to 850°C (1560°F)
Accurate
Sensitive Standardized
Interchangeable Repeatable
Applications
Air conditioning and refrigeration servicing
Furnace servicing
Foodservice processing
Medical research
Textile production
Plastics processing
Petrochemical processing
Microelectronics
Air, gas and liquid temperature measurement
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The MVX-II Multi-Variable Transmitter is a gas measurement unit built around a patented, silicon-based DPE cell. It combines the accurate and stable measurement of differential pressure, static pressure and temperature with high speed input sampling/averaging and communications capabilities. This low powered, field-hardened gas measurement transmitter features an easy-to-use laptop interface and industry standard communication protocol which makes configuration, measurement, and reporting simple, accurate, and reliable.
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Ni1000SOT is a nickel thin film resistance temperature detector (RTD) that is suitable for use in contact temperature sensing. The devices are manufactured by PVD-deposition on a silicon substrate. The thin film structure is covered by a passivation layer for environmental protection and enhanced stability. The nickel elements are mounted on lead frames and encapsulated in SOT23 packages. This technology allows the production of miniature, low cost, high precision temperature sensors. The characteristics of the temperature sensor comply with the former DIN 43760 standard. It is qualified for the most demanding automotive applications (incl. exposure to hot oil) and is suitable for many more applications in harsh environments.
Features:
- Contact temperature sensing
- Comply with former DIN 43760 standard
- Small SMD package SOT 23
- Automotive qualified
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Tempsens offers a wide range of RTDs that are reliable, accurate and fast responding.
Features:
- Temperature range 0°C to 200°C
- Accuracy upto class A, B, 1/2,1/5, 1/10 Din
- Wire connection 2, 3, 4
- Special RTDs such as
- Slide shoe RTD,
- RTD with Thermowells,
- Vibration proof RTD for DG sets,
- Bearing & Winding Temperature RTDs are also available.
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WORM Flexible Temperature Sensor
Unlike straight temperature sensors, our WORM flexible RTD and thermocouple temperature sensors bend and slide right into a thermowell without having to remove the enclosure or assembly components.
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RTD's are stable and have a fairly wide temperature range, but are not as rugged and inexpensive as thermocouples. Since they require the use of electric current to make measurements, RTD's are subject to inaccuracies from self-heating.
An RTD capitalizes on the fact that the electrical resistance of a material changes as its temperature changes. RTD's rely on the resistance change in a metal. The resistance will rise more or less linearly with temperature.
Traditionally, RTD's use a length of conductor (platinum, nickel iron or copper) wound around an insulator. Newer styles use a thin film of the conductor deposited on a ceramic substrate.
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The temperature sensors offer also variety at application possibilities for punctual or continuous temperature measurements. It is alike only as sensor or with transducer.
Function possibilities
- Tempereture switch function normaly open
- Tempereture switch function normaly closed
- PT-100
- PT-500
- PT-1000
- Up to 250°C working temperature
- Up to 400 bar working pressure
- Durable building method
- customised design
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Fast- Response Temperature Sensor with pt1000 Resistor
The fast-response temperature sensor with pt1000 resistor is used for water temperature measurement in hot water supply, solar panels, boiler system etc.
It can be directly mounting in pipe or plate of vessel, the response time is about 1 second.
Technical Data:
1) reaction time: 2 second max
2) Temperature sensing element: pt1000
3) Cable length: 1000mm or client required
4) Mounting threads: 1/2” G connection threads or client required
5) Housing material: SUS304 or SUS316L
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Screw-in RTD thermometers ET521 and ET522 with replaceable measuring insert and terminal head are preferred for measuring temperatures in liquids and gases. Applications include HVAC and refrigeration, heating installations, ovens, furnaces and plant engineering, as well as process technology.
- For temperatures from -50..+500 °C
- As single or twin resistance thermometer
- Pt100, Pt500, Pt1000, PTC1000 or NTC sensor
- Selection of DIN B types and miniature terminal heads
- Integrated thermowell with AISI316 s/s thread-connection
- Transmitter options with outputs 4-20 mA and RS485 Modbus RTU
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These RTDs cover the full temperature scale of the international standard EN60751. Precision sensing elements and nickel alloy sheaths are capable of measurements from -200 to 850°C (-328 to 1562°F) with typical ice point drift less than ±0.05°C.
600°C models have stainless steel sheaths for reduced cost. They use the same element structure as 850°C models for excellent accuracy and stability.
- Platinum elements to EN60751, Class A or B
- English and metric diameters
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You can mount these probes directly in fluid streams for accurate, reliable sensing. Time constant is just 2 seconds, compared to 10 seconds for an ordinary stainless probe or up to 50 seconds for a thermowell. The result is more accurate monitoring of dynamic processes.
- Stainless steel probes for use to 260°C (500°F)
- Pressure rating 1500 psi (103 bar)
- Quick reaction to changing fluid and gas temperatures
- NPT (U.S.) or metric threads
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ET7xx series air temperature sensors are intended for measuring temperatures in dry and damp rooms, airducts or outdoors. Applications include building automation, meteorology and labs.
- For measuring air temperature indoors, outdoors
and in airducts within range -50...+100 ° C
- Pt100, Pt500, Pt1000 RTD, PTC1000 or NTC resistance sensor
- ABS plastic terminal head
- 4-20 mA, 0-10 V transmitter options
- RS485 Modbus RTU interface option for direct Fieldbus networking
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Designed for outdoor and harsh indoor use
Screw terminal block for 4-wire Pt100 connection
Optional built-in 4-20 mA transmitter
Optional bracket assembly for mast or pipe mounting
Rugged sensor and protection tube design
Supplied with IP68 cable gland for electrical connection
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Insert these thin, laminated RTDs in winding slots to detect high temperatures before insulation damage occurs. RTD temperature sensors continuously monitor conditions and provide the long term trend data that is necessary for making adjustments before unexpected alarms occur.
The sensing elements of stator RTDs extend through most of the body length to provide an average temperature reading. This eliminates the danger of a point-type sensor missing a localized hot spot. Six sensors are recommended for each motor, two per phase. Locate sensors near the hottest point of the windings for best performance.
Some models comply with European standards for electrical apparatus for potentially explosive atmospheres: ATEX Directive 94/9/EC EN 50 014: 1997, General requirements EN 50 019: 2000, Increased safety.
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ZigBee Wireless Thermostat
The WiStat WR is a ZigBee wireless, battery or line-voltage
powered digital thermostat, designed to work with the WiPoint
WR or WiPoint Mini to control a variety of HVAC appliances.
The WiStat WR lets you instantly retrofit your existing HVAC
infrastructure without disruptive and expensive rewiring.
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Application Notes:
Good as test probe
Used with or without thermowell
Isothermal head enclosure for accuracy
Protected terminations
DIN standard lengths available
Special Options:
Duplex
Higher accuracy sensors A, 1/3,1/5,1/10 DIN
Pt 50, Pt 500, Pt 1000 and Pt 2000, Cu or Ni element
2 or 4 wires
RT can be replaced with a thermistor
Various IP rated heads available
Transmitter available in head
Tagging
Compression fitting
RT can be replaced with a thermistor
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- Compact
- Bendible
- Vibration resistant
- Fast response
- Fixed cable, plug as also conncetion head
Applications
Chemical engineering
Petro Chemistry
Food and Beverage
Thermprocess
Boiler
Plast and Fibre
Pulp and paper
Research and Development
Main attributes
3- and 4-wirw configuration
Class A and B to DIN EN 60 751
Sheath made of 1.4541 (max. 600 °C)
Response time depending from dimensions
T50 from 1,5 s (3 mm diam) onwards
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Heraeus Sensor Technology develops, manufactures and markets products whose function is based on structured thin films of platinum (Pt). With such an orientation the company is intentionally positioning itself at the start of the added value chain, i.e. the manufacture of components.
The customers of Heraeus Sensor Technology are generally manufacturers of equipment for process measurement technology, the life science sector, the complete bandwidth of heating, ventilation and air conditioning, or subcontractors for mass markets such as household appliances and motor vehicles, just to name a few as examples.
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The sensing element which is generally small - 2 to 5mm diameter - is attached to a stainless steel mineral insulated cable that can be bent.
Tightness between sensing element and cable is achieved by laser welding or brazing. Connection to the readout instrument is made by a cable, a connecting head or a connector.
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