Isotech 937 Specifications

CALIBRATION SOLUTIONS

Thermocouple Reference Unit

0 to 70°C

ACROSS RAngE

Up to 100 Channels

Compact, Pre Wired Thermocouples

Operates in High Ambients

The TRU 937 (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 937 features rapid cool down from high ambient temperatures and is stable within 10 minutes from switch on.

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.

TRU Model 937

One advantage of the TRU 937 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 TRU 937.

There are two models, the TRU 937/50 with up to 50 junctions with a single terminal cover door, and the TRU 397/100 which has doors on the front and rear, as shown in the photograph.

Note:

Thermocouple Referencing to ISO9000 at 0°C in Ambients up to 65°C or elevated reference temperatures between 45°C and 70°C References up to 100 Thermocouples Pre-wired Thermocouples, Compact Design

Model 937

Operating Temp. 0°C (or 45° to 70°C)

Ambient Range 2°C to 65°C

Stability ±0.03°C, Errors introduced by

thermocouple loading can be removed by adjusting controller offset

Stabilising Time 10 minutes from 44°C

Capacity Up to 100 Double Junction Channels

Input/Output Klippon Terminals, type 1.5 AKZ Connections

Alarm facilities Non-latching relay rated 5 Amps 240V

Power 100 Watts typical

100-130 or 208-240 VAC 50/60Hz

Dimensions Height 265mm

Width 253mm Depth TRU 937/100 312mm Depth TRU 937/50 312mm

Weight TRU 937/100 11kg

TRU 937/50 8kg

Accessories

935-14-55 Platinum Resistance Thermometer suits Block

B2: Includes UKAS Calibration at 0.01°C

935-17-33 Fan Filter - recommended for high dust

environments

How to order

TRU Model 937 Normally uniquely specified for each order. Please discuss your exact requirements with us before ordering.