Pt/Pd
Precision Thermocouple
(0 °C to 1500 °C)

Manufacturer: Klasmeier / eXacal Model: Pt/Pd Thermocouple

Description

Platinum / Palladium thermocouples (Pt/Pd) are the most precise thermocouples manufactured in the eXacal facility.

Temperature range: 0 °C to 1500 °C

Strain-compensating design
The design of the measuring point allows for strain-free expansion of the thermowires.

Excellent inhomogeneity
The high purity of 99.99% and the thermal pretreatment of the thermowires ensure excellent inhomogeneity.

Small measurement uncertainty and low drift
The achievable measurement uncertainties are approximately a factor of 2 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 strain-compensating junction of the thermowires. This special design ensures strain-free expansion of the platinum and palladium thermowires. The different thermal expansion coefficients of the two thermowires are thus balanced without mechanical stress changing the Seebeck coefficient.

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Measurement Uncertainty

Matching Case

Each thermometer is supplied in a matching case. A high-quality aluminum carrying case can be ordered as an option.

Technical Data

Model KK-150
Connection strain-free 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
  • suitable for fixed-point calibration
Measuring point
  • made of gas-tight high-purity ceramic
  • strain-free expansion of thermowires possible
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
Measuring point protection tube 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 meters of low-EMF copper connection cable
Connection cable length 2 m
Carrying case high-quality wooden case (optional, depending on configuration)