Lakeshore 340, Руководство пользователя, Страница: 21 / 178

Lake Shore Model 340 Temperature Controller User’s Manual
Introduction 1-9
Table 1-2. Model 340 Sensor Input Performance Chart (Continued)
Sensor Type Rox™ Thermox™ Carbon-Glass™ Cernox™ Germanium
Temperature Coefficient Negative
Negative
Negative Negative Negative
Sensor Units
Ohms (
Ω
) Ohms (
Ω
) Ohms (
Ω
) Ohms (
Ω
) Ohms (
Ω
)
Input Range 10 ranges from
10
Ω
to 300 k
Ω
(1)
10 ranges from
10
Ω
to 300 k
Ω
*
10 ranges from
10
Ω
to 300 k
Ω
*
10 ranges from
10
Ω
to 300 k
Ω
*
10 ranges from
1
Ω
to 30 k
Ω
Sensor Excitation
(Constant Current)
10 mV maximum
(10 current settings
from 30 nA to 1 mA)
10 mV maximum
(10 current settings
from 30 nA to 1 mA).
10 mV maximum
(10 current settings
from 30 nA to 1 mA)
10 mV maximum
(10 current settings
from 30 nA to 1 mA)
1 mV maximum
(10 current settings
from 30 nA to 1 mA)
Display Resolution Sensor Units Six digits Six digits Six digits Six digits Six digits
Example Lake Shore Sensor
RX-102A-AA with
0.3E calibration TX-104-GB with 70L
calibration CGR-1-500 with 1.4L
calibration CX-1050-SD with 1.4L
calibration GR-200A-100 with
0.3 A calibration
Temperature Range 0.3 – 200 K 70 – 325 K 1.4 – 325 K 0.3 – 325 K 0.3 – 40 K
Standard Sensor Curve Requires calibrated
sensor Requires calibrated
sensor Requires calibrated
sensor Requires calibrated
sensor Requires calibrated
sensor
Typical Sensor Sensitivity
†
-16 k
Ω
/ K at 0.3 K
-80
Ω
/K at 4.2 K
-4
Ω
/K at 20 K
-0.3
Ω
/K at 77 K
-9.5 k
Ω
/ K at 77 K
-780
Ω
/K at 100 K
-0.78
Ω
/K at 200 K
-0.035
Ω
/K at 300 K
-200 k
Ω
/ K at 1.4 K
-706
Ω
/K at 4.2 K
-0.15
Ω
/K at 77 K
-0.015
Ω
/K at 300 K
-300 k
Ω
/K at 1.4 K
-10 k
Ω
/K at 4.2 K
-5
Ω
/K at 77 K
-0.1
Ω
/K at 300 K
-209 k
Ω
/K at 0.3 K
-400
Ω
/K at 1.4 K
-20
Ω
/K at 4.2 K
-8.7
Ω
/K at 6.0 K
Measurement Resolution:
Sensor Units
Temperature Equivalence
6 digits above 10
Ω
0.1 mK at 0.3 K
0.3 mK at 4.2 K
5 mK at 20 K
70 mK at 77 K
6 digits above 10
Ω
0.1 mK at 77 K
0.1 mK at 100 K
3 mK at 200 K
60 mK at 300 K
6 digits above 10
Ω
0.1 mK at 1.4 K
0.2 mK at 4.2 K
20 mK at 77 K
133 mK at 300 K
6 digits above 10
Ω
0.1 mK at 1.4 K
0.1 mK at 4.2 K
0.5 mK at 77 K
20 mK at 300 K
6 digits above 1
Ω
0.1 mK at 0.3 K
0.1 mK at 1.4 K
0.3 mK at 4.2 K
0.6 mK at 6.0 K
Electronic Accuracy:
Sensor Units
Temperature Equivalence
±0.02% RNG
±0.05% RDG
10
Ω
to 80 k
Ω.
±0.02% RNG
±0.2% RDG >80k
Ω
±0.5 mK at 0.3 K
±16 mK at 4.2 K
±275 mK at 20 K
±3700 mK at 77 K
±0.02% RNG
±0.05% RDG
0
Ω
to 80 k
Ω.
±0.02% RNG
±0.2% RDG >80k
Ω
±6.6 mK at 77 K
±8 mK at 100 K
±22 mK at 200 K
±100 mK at 300 K
±0.02% RNG
±0.05% RDG
10
Ω
to 80 k
Ω.
±0.02% RNG
±0.2% RDG >80k
Ω
±2 mK at 1.4 K
±2 mK at 4.2 K
±235 mK at 77 K
±2900 mK at 300 K
±0.02% RNG
±0.05% RDG
10
Ω
to 80 k
Ω
±0.02% RNG
±0.2% RDG >80k
Ω
±1 mK at 1.4 K
±2 mK at 4.2 K
±80 mK at 77 K
±400 mK at 300 K
±0.02% RNG
±0.1% RDG
10
Ω
to 8 k
Ω.
±1 mK at 0.3 K
±20 mK at 1.4 K
±25 mK at 4.2 K
±50 mK at 6.0 K
Temperature Accuracy including
electronic accuracy, CalCurve
and calibrated sensor
±5.5 mK at 0.3 K
±28 mK at 4.2 K
±385 mK at 20 K
±4900 mK at 77 K
±34.6 mK at 77 K
±29 mK at 100 K
±52 mK at 200 K
±160 mK at 300 K
±7 mK at 1.4 K
±7 mK at 4.2 K
±285 mK at 77 K
±3150 mK at 300 K
±6 mK at 1.4 K
±7 mK at 4.2 K
±110 mK at 77 K
±450 mK at 300 K
±6 mK at 0.3 K
±25 mK at 1.4 K
±30 mK at 4.2 K
±55 mK at 6.0 K
Control Stability:
Temperature Equivalence ±0.2 mK at 0.3 K
±0.6 mK at 4.2 K
±10 mK at 20 K
±150 mK at 77 K
±0.2 mK at 77 K
±0.2 mK at 100 K
±6 mK at 200 K
±120 mK at 300 K
±0.2 mK at 1.4 K
±0.4 mK at 4.2 K
±40 mK at 77 K
±300 mK at 300 K
±0.2 mK at 1.4 K
±0.2 mK at 4.2 K
±1 mK at 77 K
±40 mK at 300 K
±0.2 mK at 0.3 K
±0.2 mK at 1.4 K
±0.6 mK at 4.2 K
±1.2 mK at 6.0 K
Magnetic Field Use
Recommended for
T > 2 K and B
≤
10 T
Not recommended Recommended for
T > 2 K and B
≤
19 T
Recommended for
T > 2 K and B
≤
19 T
Not recommended
*
Can be used below 3
Ω
with reduced resolution and accuracy.
†
Typical sensor sensitivities were taken from representative calibrations for the sensor listed.