Lakeshore 325, Руководство пользователя, Страница: 16 / 166

Lake Shore Model 325 Temperature Controller User’s Manual
1-4 Introduction
1.1 SENSOR SELECTION
Table 1-1. Sensor Temperature Range
Model Useful Range Magnetic Field Use
Diodes
Silicon Diode DT-670-SD 1.4 K to 500 K
T

60 K & B

3 T
Silicon Diode DT-670E-BR 30 K to 500 K
T

60 K & B

3 T
Silicon Diode DT-414 1.4 K to 375 K
T  60 K & B  3 T
Silicon Diode DT-421 1.4 K to 325 K
T

60 K & B

3 T
Silicon Diode DT-470-SD 1.4 K to 500 K
T

60 K & B

3 T
Silicon Diode DT-471-SD 10 K to 500 K
T

60 K & B

3 T
GaAlAs Diode TG-120-P 1.4 K to 325 K
T  4.2 K & B  5 T
GaAlAs Diode TG-120-PL 1.4 K to 325 K
T

4.2 K & B

5 T
GaAlAs Diode TG-120-SD 1.4 K to 500 K
T

4.2 K & B

5 T
Positive Temperature
Coefficient (PTC) RTDs
100  Platinum
PT-102/3 14 K to 873 K
T > 40 K & B  2.5 T
100

Platinum
PT-111 14 K to 673 K
T > 40 K & B

2.5 T
Rhodium-Iron RF-800-4 1.4 K to 500 K
T > 77 K & B

8 T
Rhodium-Iron RF-100T/U 1.4 K to 325 K
T > 77 K & B

8 T
Negative Temperature
Coefficient (NTC) RTDs
1
Cernox™ CX-1010 2 K to 325 K
4
T > 2 & B  19 T
Cernox CX-1030-HT 3.5 K to 420 K
2,5
T > 2 & B

19 T
Cernox CX-1050-HT 4 K to 420 K
2,5
T > 2 & B

19 T
Cernox CX-1070-HT 15 K to 420 K
2
T > 2 & B

19 T
Cernox CX-1080-HT 50 K to 420 K
2
T > 2 & B

19 T
Germanium GR-200A/B-1000 2.2 K to 100 K
3
Not Recommended
Germanium GR-200A/B-1500 2.6 K to 100 K
3
Not Recommended
Germanium GR-200A/B-2500 3.1 K to 100 K
3
Not Recommended
Carbon-Glass CGR-1-500 4 K to 325 K
4
T > 2 K to

19 T
Carbon-Glass CGR-1-1000 5 K to 325 K
4
T > 2 K to

19 T
Carbon-Glass CGR-1-2000 6 K to 325 K
4
T > 2 K to

19 T
Rox™ RX-102A 1.4 K to 40 K
4
T > 2 K to

10 T
Thermocouples
Type K 9006-006 3.2 K to 1505 K Not Recommended
Type E 9006-004 3.2 K to 934 K Not Recommended
Chromel-AuFe 0.07% 9006-002 1.2 K to 610 K Not Recommended
1
Single excitation current may limit the low temperature range of NTC resistors.
2
Non-HT version maximum temperature: 325 K.
3
Low temperature limited by input resistance range.
4
Low temperature specified with self-heating error:

5 mK.
5
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.