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RTD Sensors and Thermocouples |
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RTD sensors and thermocouples are used as electronic temperature sensors. These temperature sensors are suitable for use in industrial and laboratory temperature and process measurement. RTD Sensors (Pt-100)Platinum resistance thermometers are well-known for their accurate and stable performance. A Pt-100 detector has a value of 100 Ohms at 0 °C and varies with a positive temperature coefficient. Pt-100’s are used in processes from –260 °C to +650 °C. The sensors consist of a single or duplex detector which is built into a stainless steel sheath.
The standard tolerance is according to DIN/IEC 751 Class B or A, however, 1/3, 1/5 or 1/10 DIN tolerance detectors are also available. The 2-, 3-, or 4-wire Pt-100 detectors are the most popular types, but we can also supply Pt-20, Pt-50, Pt-500, Pt-1000 or Ni-100 versions.
ThermocouplesThermocouples essentially comprise a thermo element (a junction of two specified dissimilar metals) and an appropriate two wire extension lead. A thermocouple operates on the basis of the junction located in the process producing a small voltage which increases with temperature. It does so on a reasonably stable and repeatable basis.
Thermocouple probes have a short response time and can be used (depending on the element type) over large temperature range (-40 °C to +1600 °C, or even as high as +2200 °C using Tungsten/Rhenium elements).
The material are made according to internationally accepted standards as laid down in IEC 584 1, 2 and 4 which is based on the international Practical Temperature Scale ITS 90. Operating temperature maxima are dependent on the conductor thickness of the thermo elements.
Types K (chromel/alumel), J (iron/constantan) and T (copper/constantan) are the most well-known types. Thermocouple probes consist of thermocouple pairs which have been built into a ceramic or metal sheath with a cable, connector or connection head at the cold end. |
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Different Thermocouple Types |
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Thermocouple |
Range |
Code |
DIN/IEC 584 |
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Chromel/Alumel |
-40… |
+ |
1200 °C |
type K |
NiChr/Ni |
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Iron/Constantan |
0... |
+ |
750 °C |
type J |
Fe/Cu/Ni (type L) |
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Copper/Constantan |
-185... |
+ |
350 °C |
type T |
Cu/CuNi (type U) |
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Chromel/Contantan |
-40... |
+ |
900 °C |
type E |
NiCr/CuNi |
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Nicosil/Nisil |
-40... |
+ |
1200 °C |
type N |
NiCrSi/NiSi |
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Platinum 10% Rhodium/Platinum |
0... |
+ |
1600 °C |
type S |
Pt10Rh/Pt |
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Platinum 13%
Rhodium/Platinum |
0... |
+ |
1600 °C |
type R |
Pt13Rh/Pt |
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Platinum 30% Rhodium Platinum 6% Rhodium |
100... |
+ |
1750 °C |
type B |
Pt30Rh/Pt6Rh |
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Sensor Types |
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The RTD sensors (Pt-100) and thermocouples as shown on this web-site are only an indication of our wide range of possibilities in the field of temperature sensors for surface, immersion and gas measurement.
Almost all RTD sensors and thermocouples can be custom made in any length, diameter, material ans with any connection head, cable, transmitter, etc. |
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1000 Series Thermocouples and RTD Sensors
Model |
Description |
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ME-1001 |
From B-head, R=½˝ |
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ME-1002 |
From B-head, extension, R=½˝ BSP |
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ME-1003 |
Aluminium head with screw cap, extension and thermowell |
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Me-1004 |
From B-head, no process connection |
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ME-1005 |
Stainless steel head, R=½˝ BSP |
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ME-1006 |
Spring loaded insert |
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ME-1007 |
Outdoor sensor |
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ME-1008 |
Fixed Lemo connector |
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ME-1009 |
Fixed cable connection |
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ME-1010 |
EExia/EExd sensor with thermowell |
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ME-1011 |
Form B head, weld-in thermowell |
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ME-1012 |
Form B head, female running nut |
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ME-1013 |
Form B head, male running nut |
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ME-1014 |
Form A head, ceramic protection tube |
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ME-1015 |
Room temperature sensor, a.o. LIoy's approved |
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ME-1016 |
Cargo sensor, LIoyd's approved |
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ME-1017 |
Insertion sensor, LIoyd's approved |
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ME-1018 |
Threaded sensor with fixed cable |
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ME-1019 |
Exhaust sensor |
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ME-1020 |
Duct sensor |
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ME-1021 |
Tank sensor, multipoint version |
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ME-1022 |
Sensor for plastic extruders |
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ME-1023 |
Mineral insulated sensor (flexible) |
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ME-1024 |
MA head, R=½¨ BSP |
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ME-1025 |
MA head, no processconnection |
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ME-1026 |
Room temperature sensor |
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ME-1027 |
Pipe clamp surface |
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ME-1028 |
Tri-clamp connection and fixed calble |
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ME-1029 |
Bayonet connection, spring loaded |
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ME-1030 |
Reduced tip fixed cable |
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ME-1031 |
Right angle sensor |
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ME-1032 |
Low-cost sensor with fixed cable |
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ME-1033 |
Stainless steel potseal and 100 mm leads |
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ME-1034 |
Stainless steel potseal with spring and fixed cable |
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ME-1035 |
Miniature or standard connector |
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ME-1036 |
Lemo connector |
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ME-1037 |
Welding pad |
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ME-1038 |
Spring loaded insert |
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ME-1039 |
Form B head with/without compression fitting |
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ME-1040 |
Multipoint assembly |