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937 100-Channel Thermocouple Referencing Junction System.
The TRU 100 Temperature Reference Unit supplies a stable and accurate 0 C or elevated Reference Temperatures between 45°C and 70°C.
It is a self-contained all solid state unit using peltier technology which provides maintenance free operation.
The TRU 100 features rapid cool down from high ambient temperatures and is stable within 10 minutes
from switch on.

Thermocouple Reference Junction System

Model  Description 
937 Thermocouple Reference Junction System

Thermocouple Referencing to ISO9000 at 0°C in Ambient Temperatures up to 65 C or elevated reference temperatures between 45°C and 70°C.
References Up To 100 Thermocouples.
Pre-wired Thermocouples, Compact Design.
The TRURAC Combines Two TRU 100 in a 19" Rack-Mount Enclosure for the Referencing of Up To 200 Thermocouples.

An alarm will be activated should the reference temperatures deviate by more than the user definable span.
Thermocouple Reference Junctions are located in a reference block and connected to their marked input and
output terminals in an isothermal enclosure.
The uniform temperature throughout the enclosure ensures that no thermoelectric EMFs are generated at the terminals.
One advantage of the TRU100 is that the user need not be concerned with the supply and installation of
reference junctions since it is only necessary to connect the thermocouple compensation cables to the input
terminals and the measuring instrument to the output terminals of the TRU100.

Thermocouple Reference Junction System specification
Model  937 
Accuracy  ±0.03°C, Errors introduced by thermocouple loading can be removed by adjusting controller offset 
Stability  ±0.05°C at 20°C ±10°C 
Ambient Range  2°C to 65°C 
Stabilizing Time  10 minutes from 44°C
Thermocouple Capacity  Up to 100 Double Junction Channels
Input/Output  Screw Terminals
Monitor  4 wire Connected PT100, 1/3 Din (optional) Standard ±0.1°C Accuracy
Alarm Facilities  Non-latching relay rated 5 Amps 240V
Power  110 VAC ± 10% (50 / 60 Hz) 100 Watts typical
Dimensions  285mm x 253mm x 312mm (HxWxD)
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tel: 253-927-6186