Sensor Selection; Sensor Temperature Range - Lakeshore 331S User Manual

1.1

SENSOR SELECTION

Diodes
Positive
Temperature
Coefficient RTDs
Negative
Temperature
Coefficient
RTDs
2
Thermocouples
2
Single excitation current may limit the low temperature range of NTC resistors.
3
Non-HT version maximum temperature: 325 K.
4
Low temperature limited by input resistance range.
5
Low temperature specified with self-heating error: ≤5 mK.
6
Low temperature specified with self-heating error: ≤12 mK.
Silicon diodes are the best choice for general cryogenic use from 1.4 K to above room temperature.
Diodes are economical to use because they follow a standard curve and are interchangeable in many
applications. They are not suitable for use in ionizing radiation or magnetic fields.
Cernox™ thin-film RTDs offer high sensitivity and low magnetic field-induced errors over the 2 K to
420 K temperature range. Cernox sensors require calibration.
Platinum RTDs offer high uniform sensitivity from 30 K to over 800 K. With excellent reproducibility,
they are useful as thermometry standards. They follow a standard curve above 70 K and are
interchangeable in many applications.
1-4
Lake Shore Model 331 Temperature Controller User's Manual
Table 1-1. Sensor Temperature Range
Silicon Diode
Silicon Diode
Silicon Diode
Silicon Diode
Silicon Diode
Silicon Diode
GaAlAs Diode
GaAlAs Diode
GaAlAs Diode
100 Ω Platinum
100 Ω Platinum
Rhodium-Iron
Rhodium-Iron
Cernox™
Cernox™
Cernox™
Cernox™
Cernox™
Germanium GR-200A/B-1000
Germanium GR-200A/B-1500
Germanium GR-200A/B-2500
Carbon-Glass
Carbon-Glass
Carbon-Glass
Rox™
Type K
Type E
Chromel-AuFe 0.07%
Model Useful Range
DT-670-SD 1.4 K to 500 K
DT-670E-BR 30 K to 500 K
DT-414 1.4 K to 375 K
DT-421 1.4 K to 325 K
DT-470-SD 1.4 K to 500 K
DT-471-SD 10 K to 500 K
TG-120-P 1.4 K to 325 K
TG-120-PL 1.4 K to 325 K
TG-120-SD 1.4 K to 500 K
PT-102/3 14 K to 873 K
PT-111 14 K to 673 K
RF-800-4 1.4 K to 500 K
RF-100T/U 1.4 K to 325 K
CX-1010 2 K to 325 K
CX-1030-HT 3.5 K to 420 K
CX-1050-HT 4 K to 420 K
CX-1070-HT 15 K to 420 K
CX-1080-HT 50 K to 420 K
2.2 K to 100 K
2.6 K to 100 K
3.1 K to 100 K
CGR-1-500 4 K to 325 K
CGR-1-1000 5 K to 325 K
CGR-1-2000 6 K to 325 K
RX-102A 1.4 K to 40 K
9006-006 3.2 K to 1505 K
9006-004 3.2 K to 934 K
9006-002 1.2 K to 610 K
Magnetic Field Use
T ≥ 60 K & B ≤ 3 T
T ≥ 60 K & B ≤ 3 T
T ≥ 60 K & B ≤ 3 T
T ≥ 60 K & B ≤ 3 T
T ≥ 60 K & B ≤ 3 T
T ≥ 60 K & B ≤ 3 T
T > 4.2 K & B ≤ 5 T
T > 4.2 K & B ≤ 5 T
T > 4.2 K & B ≤ 5 T
T > 40 K & B ≤ 2.5 T
T > 40 K & B ≤ 2.5 T
T > 77 K & B ≤ 8 T
T > 77 K & B ≤ 8 T
5 T > 2 & B ≤ 19 T
3,6 T > 2 & B ≤ 19 T
3,6 T > 2 & B ≤ 19 T
3 T > 2 & B ≤ 19 T
3
T > 2 & B ≤ 19 T
4 Not Recommended
Not Recommended
4
4 Not Recommended
5
T > 2 K to ≤ 19 T
5
T > 2 K to ≤ 19 T
5 T > 2 K to ≤ 19 T
5 T > 2 K to ≤ 10 T
Not Recommended
Not Recommended
Not Recommended
Introduction