Rototherm - General Purpose / Penetration Probes

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General Purpose / Penetration Probes

Order Code

T/C Type

Operating Temperature

Probe Dimensions

Description & Applications

123-160

127-160

122-160

123-168

127-168

122-168

Penetration Probe

Ø3.3 x 130 or 300mm

Type K

Type T

Type J

Type K

Type T

Type J

-50 to +250°C

Ø3.3 x 130mm

Ø3.3 x 300mm

These pointed, stainless steel, penetration probes are strong and versatile. Suitable for a variety of general purpose temperature measurement applications including liquids, semi-solids and granular materials. Response time less than 3 seconds.

123-159

127-159

122-159

Fast Response Needle Probes

Ø3.3 x 100mm

Type K

Type T

Type J

-50 to +250°C

Ø3.3 x 100mm

These pointed, reduced tip, fast response, stainless steel, penetration probes are ideal for liquids and semi-solids including rubber, plastics and similar materials. Response time less than 2 seconds.

123-100

127-100

122-100

Needle Penetration Probes

Ø1.8 x 130mm

Type K

Type T

Type J

-50 to +250°C

Ø1.8 x 130mm

These pointed, fast response, stainless steel, penetration probes are suitable for liquids and semi-solids including rubber, plastics, and similar materials. Response time less than 2 seconds.

133-170

137-170

132-170

Oven Penetration Probes

Ø3.3 x 130mm

Type K

Type T

Type J

-50 to +250°C

Ø3.3 x 130mm

These high temperature oven probes are available with a stainless steel handle. Supplied with a two metre PTFE high temperature lead. Response time less than 4 seconds.

133-180

137-180

132-180

Miniature Needle Probes

Ø1.4 stem reducing to Ø0.96 tip x 50mm

Type K

Type T

Type J

-50 to +250°C

Ø1.4 x 50mm

These fast response, stainless steel, miniature needle penetration probes are ideal for measuring very small samples. Supplied with a one metre PTFE lead. Response time less than 1 second.

123-204

127-204

122-204

123-212

127-212

122-212

High Temperature Probes

Ø1.5 or 3 x 130mm

Type K

Type T

Type J

Type K

Type T

Type J

-50 to +1100°C

-50 to +350°C

-50 to +750°C

-50 to +1100°C

-50 to +350°C

-50 to +750°C

Ø1.5 x 130mm

Ø3 x 130mm

These flexible, high temperature, stainless steel sheathed, MI probes are impervious to gases and liquids and can be bent to any shape without adversely affecting their performance. Ideal for a wide range of laboratory and process applications. Response time less than 2 seconds.

123-300

127-300

122-300

Air or Gas Probes

Ø4.5 x 130mm

Type K

Type T

Type J

-50 to +250°C

Ø4.5 x 130mm

These stainless steel, fast response, hand held air or gas probes are ideal for measuring air temperature in offices, storage areas, ovens etc. Response time less than 0.5 of a second.

123-000

127-000

122-000

Surface Probes

Ø6 x 130mm

Type K

Type T

Type J

50 to +600°C

-50 to +350°C

-50 to +600°C

Ø6 x 130mm

These surface probes have a spring-loaded copper disc sensing tip. The probes are ideal for a variety of surface temperature measurements. Response time less than 2 seconds.

123-044

127-044

122-044

Ribbon Surface Probes

Ø8 x 130mm

Type K

Type T

Type J

-50 to +250°C

Ø8 x 130mm

These ribbon surface probes are ideal for measuring small and large stationary metallic surfaces. A right-angled version is also available. Response time less than 0.5 of a second.

123-020

Heavy Duty Surface Probe

Ø12 x 130mm

Type K

-50 to +1000°C

Ø12 x 130mm

This heavy duty, high temperature surface probe is ideal for measuring the temperature of hotplates and other metallic surfaces. Response time less than 0.5 of a second.

123-240

127-240

122-240

Binder Probes

Ø3 x 130mm

Type K

Type T

Type J

-50 to +250°C

Ø3.3 x 130mm

These rounded tip probes are designed for inserting into 'Binder' self-sealing glands to measure the internal temperature of vessels or radiators. Response time less than 3 seconds.

133-016

137-016

132-016

Magnet Surface Probes

Ø20mm

Type K

Type T

Type J

-50 to +150°C

Ø20 x 1000mm

These magnet probes are supplied with a one metre PTFE lead. Ideal for monitoring the surface temperature of ferrous metals, e.g. radiators. Response time less than 20 seconds.

133-040

137-040

132-040

Pipe Clamp Probes

Maximum Ø30mm

Type K

Type T

Type J

-50 to +100°C

Ø30mm maximum

The pipe clamp probe is ideal for measuring the surface temperature of pipes in refrigeration and heating/ventilating systems. Suitable for pipes from Ø6 to Ø30mm. Response time less than 2 seconds.

133-475

137-475

132-475

Black Ball Radiation Probes

Ø50mm

Type K

Type T

Type J

-50 to +200°C

Ø4 x 90mm

These black ball probes are designed to measure radiation temperatures in kilns and ovens. Each probe is supplied with a two metre stainless steel braided lead. Response time less than 6 seconds.

133-080

137-080

132-080

Velcro Pipe Probes

20 x 500mm

Type K

Type T

Type J

-50 to +100°C

20 x 500mm

The velcro pipe probes are a wrap-around probe suitable for the temperature measurement of medium and large pipes in the HVAC and process industries. Response time less than 20 seconds.

123-060

127-060

122-060

Rigid Between Pack Probes

Ø4.5 x 130mm

Type K

Type T

Type J

-50 to +250°C

Ø4.5 x 130mm

These rigid, stainless steel, between pack probes are strong and versatile, designed specifically to measure between packets or boxes of produce. Response time less than 3 seconds.

133-018

137-018

132-018

Weighted Surface Probes

Ø40 x 80mm

Type K

Type T

Type J

-50 to +250°C

Ø40 x 80mm

These fast response, weighted, surface probes utilise flat ribbon thermocouple technology that ensures a fast, accurate response with minimal heat loss. Response time less than 2 seconds.

Thermocouple Probes
A thermocouple probe consists of two dissimilar metals or metal alloys that are welded together to form a 'hot junction' measuring sensor. The other end of the thermocouple probe is connected to the measuring instrument, normally via a miniature connector. Within the instrument a second junction is formed electronically, this is normally referred to as the 'cold junction'. When a temperature difference exists between the two ends (Seebeck effect), a voltage is generated which is proportional to the temperature difference. Cold junction compensation techniques are used to correct for instrument variations in ambient temperatures to give meaningful and accurate measurements. Thermocouples of a given type generally produce repeatable results and are therefore interchangeable.

Type K thermocouples are robust and durable and recognised as the most frequently used thermocouple type. Type K thermocouples are ideal for general purpose applications when monitoring over a wide temperature range.

Type T thermocouples are ideal for applications which require a higher accuracy but are only suitable to measure over a limited temperature range.

Type J thermocouples are general purpose thermocouples with a lesser accuracy.

THERMOCOUPLE ACCURACIES/TOLERANCES TABLE

Type

Description/Conductors

Temperature Range

BS EN 60584-2:1993 Class 1 Tolerances

Thermocouple Probe Tolerances

Nickel Chromium/Nickel Aluminium

(Ni-Cr/Ni-Al)

-210°C to +1372°C

±1.5°C -40 to +333°C

±0.4% +333 to +1000°C

±1.5°C -40 to 0°C

±0.5°C 0 to +100°C

±1.5°C +100 to +333°C

±0.4% +333 to +1000°C

Copper/Constantan

(Cu/Con)

-210°C to +400°C

±0.5°C -40 to +125°C

±0.4% +125 to +350°C

±0.5°C -40 to -20°C

±0.2°C -20 to +70°C

±0.5°C +70 to +125°C

±0.4% +375 to +750°C

Iron/Constantan

(Fe/Con)

-180°C to +1200°C

±1.5°C -40 to +375°C

±0.4% +375 to +750°C

±1.5°C -40 to 0°C

±1.0°C 0 to +100°C

±1.5°C +100 to +375°C

±0.4% +375 to +750°C

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