TEMPERATURE PROBES
Accuracy Guide

ACCURACY GUIDE

TYPE	CONDUCTORS	TEMPERATURE RANGE	TOLERANCES TO BS4937 CLASS 1
K	Nickel Chromium/Nickel Aluminium (Ni-Cr/Ni-Al)	-200°C +1250°C -328°F +2280°F	-40°C +1000°C: ±1.5°C ±0.4% (whichever is the greater) -40°F +1830°F: ±.2.5°F ±0.4% (whichever is the greater)
T	Copper/Copper Nickel (Cu/Cu-Ni)	-200°C +400°C -328°F +752°F	-40°C +350°C: ±0.5°C ±0.4% ( whichever is the greater) -40°F +600°F: ±.1.0°F ±0.4% (val. maggiore) Thermocouple Type T material is selected for ±0.2°C over the range -20°C to +70°C.
PLATINUM RESISTANCE	-	Temperature Range	Tolerances to BS1904 Grade A
PT100 PLATINUM RESISTANCE	-200°C +800°C -328°F +1470°F	-	-200°C +600°C: ±0.15°C ±0.2% -328°F +1110°F: ±0.13°F ±0.2%

RESISTANCE TO MECHANIC STRAIN (SHEATH + HANDLE)
Compression 245N (25 kgf) / Traction 245N (25 kgf) / Torsion 1.47Nm (15 kgfcm).

RESISTANCE OF CABLE TO TRACTION AND FLEXION
Traction 245N (25 kgf) / Flexion >90° nearby the connector.

SENSOR TIME CONSTANT
The time constant is the time taken for the sensor to reach 63% of the final reading and is the industry standard means of measuring probe response time. Five times this figure is normally required to obtain a steady reading.

The results given in this brochure were obtained in an agitate water/glycol bath and may differ from those obtained under other conditions, but can be used as a general guide when selecting probes for your requirements.

Note: For probes and instruments we can supply system (instrument & sensor) calibration certificates or reports referent to SIT / UKAS standard, for measurements below -40°C/-40°F, if required. For details, please contact Digitron Italia special manufactured probes.

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TEMPERATURE PROBES Accuracy Guide

TEMPERATURE PROBES
Accuracy Guide