Description

Platinum / palladium thermocouples (Pt/Pd) are the most precise thermocouples manufactured by eXacal.

Temperature range: 0 °C to 1500 °C

Stress-compensating design
The design of the measuring point enables stress-free expansion of the thermocouple wires.

Outstanding inhomogeneity
The high purity of 99.99 % and the thermal pre-treatment of the thermocouple wires ensure outstanding inhomogeneity.

Low measurement uncertainty and low drift
The achievable measurement uncertainties are approx. 2 times better than with type R/S thermocouples.

Pt/Pd thermocouples can be used in the temperature range from 0 °C to 1500 °C with very small measurement uncertainties. A special feature of this thermocouple is the use of a stress-compensating junction of the thermocouple wires. This special design ensures stress-free expansion of the platinum and palladium thermocouple wires. The different thermal expansion coefficients of the two thermocouple wires are thus equalised without mechanical stresses changing the Seebeck coefficient.

Measurement uncertainty

Technical Data

Model	KK-150
Connection	non-strained copper wire
Type	Platinum / Palladium (Pt/Pd)
Temperature Range	0 °C to 1500 °C
Thermowire	Platinum / Palladium (Pt/Pd) 99.99% purity thermally pretreated and aged suited for fixed-point calibration
Measuring Junction	made from gas-tight high-purity ceramic allows stress-free expansion of thermowires
Handle	maximum continuous temperature 100 °C
Characteristic Curve	IEC 62460
Measurement Uncertainties (with DAkkS Calibration)
Fixed-Point Calibration
0.01 °C 419.527 °C 660.323 °C 961.78 °C	0.2 K 0.2 K 0.2 K 0.2 K
*Comparison Calibration*
0 °C to 962 °C >962 °C to 1200 °C	0.4 K 1.5 K
Dimensions
Protective Sheath (Measuring Junction)	Ø 7 mm x 500 mm
Handle	Ø 20 mm x 95 mm
Thermowire Length	2 m
Reference Junction	Ø 6 mm x 280 mm (stainless steel) with two-meter connection lead made of low-EMF copper
Connection Lead Length	2 m
Carrying Case	premium wooden case (optional, depending on configuration)