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Heavy Duty Hand Held Thermometer Probes
As standard, these heavy duty hand held PT100 probes are supplied with a heavy duty ribbed handle or a heavy duty T-shaped handle and one metre straight PVC lead (3-wire configuration) with a 'Binder' connector.
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Order Code |
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T/C Type |
Operating Temperature |
Probe Dimensions |
Cap Colour |
Description & Applications |
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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. |
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These fast response surface probes utilise a bell-shaped housing together with a thin, flat, stainless steel measuring disc that ensures a fast, accurate response with minimal heat loss. Ideal for measuring a wide variety of surface temperatures. Response time less than 5 seconds. |
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133-175
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This stainless steel penetration probe incorporates a heavy duty T-shaped blue polyethylene handle and a corkscrew design sensing tip. Suitable for a variety of industrial and food processing applications. Each probe is supplied with a one metre PVC detachable lead. Response time less than 9 seconds. |
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133-123
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These
robust, stainless steel, penetration probes incorporate a T-shaped
handle. Suitable for a wide variety of heavy duty applications including
food processing, asphalt, blacktop etc. Ø3.3mm response time less than 4
seconds. Ø4mm response time less than 4 seconds. Ø6.35mm response time
less than 9 seconds.
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133-120
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This
stainless steel, heavy duty, reinforced needle probe incorporates a
heavy duty T-shaped polyethylene handle and a reduced sensing tip for
faster response. Suitable for a wide variety of industrial applications
including asphalt and food processing. Ø6.35mm response time less than
10 seconds. Ø8mm response time less than 12 seconds. Ø9.5mm response
time less than 17 seconds.
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Heavy
Duty T-Shaped Hand Held Thermometer Probes
Type K, T & J Thermocouples
As
standard, this range of heavy duty T-shaped hand held probes is supplied
with a heavy duty T-shaped handle, one metre straight PVC lead and miniature
connector. Should you require a one metre coiled PVC lead, replace the first
digit (1) of the order code with the number 3.
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
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Type |
Description/Conductors |
Temperature Range |
BS EN 60584-2:1993 Class 1 Tolerances |
Thermocouple Probe Tolerances |
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K
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Nickel Chromium/Nickel Aluminium (Ni-Cr/Ni-Al) |
-210°C to +1372°C |
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T
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Copper/Constantan (Cu/Con) |
-210°C to +400°C |
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J
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Iron/Constantan (Fe/Con)
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-180°C to +1200°C |
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