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PDF PT-100 Data sheet ( Hoja de datos )
| Número de pieza | PT-100 | |
| Descripción | Platinum RTDs | |
| Fabricantes | Lake Shore | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PT-100 (archivo pdf) en la parte inferior de esta página. Total 3 Páginas | ||
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1-28 PT-100 Platinum RTDs
PT-100 Platinum RTDs
• Follows Lake Shore
extended standard curve
from 30 K to 70 K
• High reproducibility
• Low magnetic field
dependence above 40 K
• Low susceptibility to
ionizing radiation
• Conforms to DIN 43760
and IEC 751 Standards
down to 70 K
• Lake Shore provides
individual calibrations
from 14 K to as high as
800 K
• SoftCal™ calibration
available
PT-100 platinum resistance thermometers
(PRTs) are an excellent choice for use as
cryogenic temperature sensing and control
elements in the range from 30 K to 873 K
(-243 °C to 600 °C). Over this temperature
span, PRTs offer high repeatability and
nearly constant sensitivity, dR/dT. Platinum
resistors are also of use as control
elements in magnetic field environments
where errors approaching a degree can be
tolerated. PRTs are interchangeable above
70 K. The use of controlled-purity platinum
assures uniformity from device to device.
PT-111
PT-103
PT-102
PRTs experience rapidly decreasing
sensitivity below approximately 30 K. They
should be calibrated in order to achieve
maximum accuracy for use below 100 K.
The plot below illustrates platinum sensor
conformance to the DIN 43760:1980 curve.
See the Reference Section
for a detailed description of
Self-heating
Installation
Uncalibrated sensors
SoftCal™
Calibrated sensors
CalCurve™
Sensor packages
1. If your application requires more than one
platinum resistor, up to five platinum resistors can
be matched with one another to within ± 0.1 K at
liquid nitrogen temperature with only one calibration
being purchased. If absolute accuracy is required,
one of these matched sensors can be calibrated.
For larger quantities, or for different requirements,
consult Lake Shore. At the time of order, add the
suffix -LN to the sensor.
Example: PT-102-14D-LN is a PT-102-LN sensor with a
calibration range of 14 K to 100 K that is matched with
at least one other uncalibrated PT-102 to within ±0.1 K
at liquid nitrogen temperature.
2. For metrological applications below 30 K, use a
germanium resistor (page 1-22). PT-100 sensors are
not useful below 14 K for metrology and are of
limited use below 30 K for temperature control due to
rapid decline in sensitivity.
3. For high temperature use anneal at Tmax +10 °C.
Typical Magnetic Field-Dependent
Temperature Errors ∆T/T (%)
at B (magnetic induction)
B (tesla)
T(K) 2.5 5
8 14 19
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
Recommended for use when T ≥ 30 K.
Long axis parallel to B; orientation effects exist.
B.L. Brandt, L.G. Rubin and H.H. Sample, Low-
Temperature Thermometry in High Magnetic Fields.
VI. Industrial-grade Pt resistors above 66 K; Rh-Fe
and Au-Mn resistors above 40 K, Rev. Sci. Instrum.
59, 642 (1988).
Typical Resistance and Sensitivity values for PT-100s. See page A-57 for tabular data.
1 page | ||
| Páginas | Total 3 Páginas | |
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