Lakeshore 332 User Manual page 17

Table 1-2. Model 332 Typical Sensor Performance Chart (Continued)
Sensor Type
Temperature Coefficient
Input Range
Sensor Excitation
*
(Constant Current)
Display Resolution
(Sensor Units)
Example LSCI Sensor
Standard Sensor Curve
Typical Sensor Sensitivity
Measurement Resolution:
Sensor Units
Temperature Equivalence
Electronic Accuracy:
Sensor Units
Temperature Equivalents
Temperature Accuracy including
electronic accuracy, CalCurve
and calibrated sensor
Control Stability:
Sensor Units
Temperature Equivalence
Magnetic Field Use
Current reversal eliminates thermal EMF voltage errors for resistor sensors.
*
†
Typical sensor sensitivities were taken from representative calibrations for the sensor listed.
‡
Accuracy specification does not include errors from room temperature compensation.
Introduction
Lake Shore Model 332 Temperature Controller User's Manual
Thermocouple
25 mV
Positive
±25 mV
Not Applicable
0.1 µV
Chromel versus
AuFe 0.07%
By Type
12.6 µV/K at 4.2 K
†
22.4 µV/K at 300 K
0.4 µV
32 mK at 4.2 K
18 mK at 300 K
‡
±1 µV ±0.05%
of reading
±288 mK at 4.2 K
±58 mK at 300 K
Calibration not available
from Lake Shore
0.8 µV
64 mK at 4.2 K
36 mK at 300 K
Recommended for
T > 2 K & B < 19 T
Thermocouple
50 mV
Positive
±50 mV
Not Applicable
0.1 µV
Type K
By Type
0.92 µV/K at 4.2 K
40 µV/K at 300 K
36 µV/K at 1500 K
0.4 µV
435 mK at 4.2 K
10 mK at 300 K
11 mK at 1500 K
‡
±1 µV ±0.05%
of reading
±4.6 K at 4.2 K
±38 mK at 300 K
±722 mK at 1500 K
Calibration not
available from
Lake Shore
0.8 µV
870 mK at 4.2 K
20 mK at 300 K
22 mK at 1500 K
Not Recommended
1-7