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Ice
Point Calibration Reference Chamber and Temperature Reference
Probes, High Precision Base Model
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| TRCIII |
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A
0°C (32°F) Thermoelectric "Refrigerator"
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Eliminates
Old Fashioned "Ice Bath" |
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For Versatile Use in the Factory, Laboratory, Instrument
Shop |
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Calibration
of All Temperature Instruments and Sensors |
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Rugged
Outer Case for Safe Portability |
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Accepts Up to 6 Probes |
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Available
in 120 or 220 Vac Models |
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NIST
Traceable Calibration Available |
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Companion
Dry Block Probe Calibrator Available (Model CL900/950) |
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The TRC ice point™ Reference Chamber relies on the equilibrium
of ice and distilled, deionized water at atmospheric pressure
to maintain six reference wells at precisely 0°C. The
wells extend into a sealed cylindrical chamber containing
the distilled, deionized water. The outer walls of the chambers
are cooled by thermo-electric cooling elements. The increase
in volume produced by the creation of ice crystals within
the cell is sensed by the expansion of a bellows, which operates
a microswitch and controls the cooling elements. The alternate
freezing and thawing of the ice accurately maintains a 0°C
environment around the reference wells. The automatic operational
features of this instrument eliminate the need for frequent
attention, required of common ice baths. On-off cycling of
a pilot light indicates proper operation of the unit at ice
point temperature.
Any combination of thermocouples may be used with this instrument
by simply inserting the reference probes in the reference
wells. Calibration of other types of temperature sensors at
0°C may also be performed. When accurate temperature measurements
are required, the TRCIII ice point Chamber delivers the precision
you need. The reference wells are maintained at 0°C to
within ±0.1°C and a stability of ±0.04°C
for constant ambient. Continuous cycling operation maintains
constant equilibrium conditions within the cell, eliminating
the slow drift often experienced in common ice baths as melting
occurs. TRP reference probes, used with the TRCIII, provide
a junction from thermocouple alloys to copper wire, at the
probe tip. When inserted into the TRCIII, TRP probes enable
the change from thermocouple alloy to copper at 0°C, for
accurate cold junction compensation.
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† All dollar amounts on this site are shown in US currency.
Note: For thermocouple types J, K, T, E, standard wire length is 12", for 24" or 36" long leads add suffix "-24" or "-36" to model number, add $4/ft. For thermocouple types R, S, B, C, G, D, standard wire length is 6", add $37 for each additional 6 inches and appropriate suffix.
(OPTIONS SHOWN IN THIS "NOTE" ABOVE ARE PRICED IN US$)
Ordering Example: (1) TRCIII Ice point™ reference 120 Vac operation = $1175
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