Specifications
Standard curve IEC 751
Recommended excitation 1 mA
Dissipation at recommended excitation
100 µW at 273 K
Thermal response time
PT-102 & PT-103: 1.75 s at 77 K, 12.5 s at 273 K; PT-111: 2.5 s at 77 K, 20 s at 273 K
Use in radiation Recommended for use in ionizing radiation environments – Click here for more information
Use in magnetic field Because of their relatively low magnetic field dependence above 30 K, platinum sensors are useful as control elements in magnetic field applications when some error can be tolerated – Click here for more information
Reproducibility4 ±5 mK at 77 K
1 Short-term reproducibility data is obtained by subjecting sensor to repeated thermal shocks
from 305 K to 77 K |
|
|
| SoftCal™ Accuracy |
|
30 K to
305 K |
305 K to
400 K |
400 K to
475 K |
475 K to
500 K |
500 K to
670 K |
| 2 S |
±0.25 K |
±0.9 K |
±1.3 K |
±1.4 K |
±2.3 K |
| 3 S |
±0.25 K |
±0.25 K |
±0.25 K |
±1.4 K |
±2.3 K |
|
2S: 77 K and 305 K
3S: 77 K, 305 K and 475 K |
|
| Calibrated Accuracy |
|
Typical sensor accuracy2 |
Long-term
stability3 |
|
Calibrations
to 800 K |
All other
calibrations |
| 30 K |
±10 mK |
±10 mK |
— |
| 77 K |
±12 mK |
±12 mK |
±10 mK |
| 305 K |
±23 mK |
±23 mK |
— |
| 400 K |
±210 mK |
±41 mK |
— |
| 500 K |
±210 mK |
±46 mK |
— |
| 800 K |
±310 mK |
— |
— |
|
2 [(Calibration uncertainty)2 + (reproducibility)2 ] 0.5 for more information see Appendices B, D, and E
3 If not heated above 475 K -long-term stability data is obtained by subjecting sensor to 200 thermal shocks from 305 K to 77 K |
|
|
| Typical Magnetic Field-Dependent Temperature Errors4 Δ T/T (%) at B (magnetic induction) |
| Temperature Response Data Table (typical) |
| |
R (Ω) |
PT-100
S (Ω/K) |
(T/R)
(dR/dT) |
| 20 K |
2.2913 |
0.085 |
0.74 |
| 50 K |
9.3865 |
0.360 |
1.90 |
| 77 K |
20.380 |
0.423 |
1.60 |
| 150 K |
50.788 |
0.409 |
1.20 |
| 300 K |
110.354 |
0.387 |
1.10 |
| 600 K |
221.535 |
0.372 |
1.00 |
| 800 K |
289.789 |
0.360 |
1.00 |
| Click here for expanded response table |
|
| Package base parallel to field B |
| T (K) |
2.5 T |
5 T |
8 T |
14 T |
19 T |
| 20 |
20 |
– |
100 |
250 |
– |
| 40 |
0.5 |
1.5 |
3 |
6 |
8.8 |
| 87 |
0.04 |
0.14 |
0.4 |
1 |
1.7 |
| 300 |
-0.01 |
0.001 |
0.02 |
0.07 |
0.13 |
| 4 Recommended for use when T = 30 K |
|
|
| Range of Use |
|
Minimum limit |
Maximum limit |
| PT-102 |
14 K |
873 K |
| PT-103 |
14 K |
873 K |
| PT-111 |
14 K |
673 K |
|
|
|
| Physical Specifications |
|
Mass |
Lead
type |
Internal
atmosphere |
Materials
used |
PT-102
|
250 mg |
2, platinum |
Solid |
Platinum winding partially supported by a high temperature alumina powder inside a ceramic tube, platinum lead wires |
| PT-103 |
120 mg |
2, platinum |
Solid |
| PT-111 |
52 mg |
2, platinum |
Solid |
One platinum band wound onto a glass tube which is protected from the enviornment by a layer of glaze, platinum coated nickel lead wires |
|