Phone: 253-927-6186
Home > Standards > Thermocouple Reference > 885 Thermocouple reference unit

885 Three Channel Thermocouple Referencing Unit.
The Trio Three-Channel Thermocouple Referencing Unit is a low-cost, accurate, portable unit designed to
compensate three thermocouples for the variations in EMF caused by the cold junction not being at the
standard reference temperature of 0°C.
Tables are available for each thermocouple combination which give the voltage versus temperature variation.
The Trio senses the ambient temperature and generates an electrical voltage to cancel out the variation,
thus providing equivalent of a 0°C cold junction reference bath.

Thermocouple Referencing Unit

Model  Description 
885  Thermocouple Referencing Unit

The Trio Three-Channel Thermocouple Referencing Unit contains three electronic networks,
incorporating a temperature-sensitive element which is thermally integrated with the thermocouple cold
junction for maximum precision.

The Trio is manufactured to the highest standards and after assembly each unit is calibrated to ensure
conformance to the relevant thermocouple table.

A wide range of thermocouple types are available. As standard, six thermocouple combinations are offered
to customer requirements.
The internal structure of the Trio allows either one, two or three thermocouple types to be compensated.

Model 885
Reference Temp 0°C (others by arrangement)
Operating Temp 0 to 55°C
Output Impedance Less than 200 ohms
Power 110 VAC ±10% (50/60Hz) 10 Watts typical
Compensation Type K, T, J, E, U, N
Stability Typically 0.02% p.a.
Dimensions 38mm x 80mm x 150mm (HxWxD)
Weight 0.8 lbs (349g)
We accept
  • American Express
  • Master Card
  • VISA
  • Purchase Orders
Hotek Technologies, Inc
tel: 253-927-6186