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.
UNI EN ISO 9001:2008
-
Organisation mit zertifizierten Managementsystem
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Kalibrier-Zertifikate Accredia