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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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ET24x series surface temperature sensors are intended for measuring
temperatures on closed pipe systems or other round or flat surfaces.
The sensor can be conveniently fixed with a hose clamp or M3 screw.
Mounting with hose clamps avoids any mechanical preparation of the
measurement site.
- For measuring temperatures from -50 to +500 ° C
- Pt100, Pt500, Pt1000, PTC1000 or NTC resistance sensors
- Double RTD sensing element option
- Available in 2-, 3- or 4-wire circuit
- PVC-, silicone,- teflon- or fiberglass-insulated cable
- Quick and easy installation
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Install these compact sensors anywhere for accurate point sensing and fast response. All Thermal-Tab modules use a thin-film RTD element. All Thermal-Ribbon models conform to EN60751 Class B tolerance when ordered with a PD platinum element.
- Fast response surface sensing in aerospace, medical and industrial devices
- Rugged lamination construction
- Polyimide, silicone rubber or Mylar™ insulation
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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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HM 5040 Magnetic Surface Sensor
Magnetic surface Pt 100 sensor
Size 39x26x25 mm (LxBxH)
Magnetic strength 90 N
Accuracy to DIN IEC 60751 class B.
Optional accuracy class A
Silicone cable length 4 meter.
Good chemical resistance.
Can be used on feretic surfaces
Maximum temperature at tip 250°C
Spring-loaded sensitive contact tip.
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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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Surface temperature feeler
Designation - measuring range - Messunsicherheit
Oberflächenfühler1 - 0... +60 °C - <20 mK
Oberflächenfühler2 - 0... +60 °C - <50 mK
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Magnetic surface thermocouple
Magnetic surface probe
Calibration Type K.
Measures surface temperature of ferrous materials such as bearings on induction heaters.
Magnet diameter Ø 14mm.
Response time 7 sec.
Maximum temperature at tip 220°C
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