Lakeshore 340 User Manual page 20

Sensor Type
Temperature Coefficient
Sensor Units
Input Range
Sensor Excitation
(Constant Current)
Display Resolution Sensor Units
Example Lake Shore Sensor
Temperature Range
Standard Sensor Curve
†
Typical Sensor Sensitivity
Measurement Resolution:
Sensor Units
Temperature Equivalence
Electronic Accuracy:
Sensor Units
Temperature Equivalence
Temperature Accuracy including
electronic accuracy, CalCurve
and calibrated sensor
Control Stability:
Sensor Units
Temperature Equivalence
Magnetic Field Use
*
No longer available from Lake Shore.
†
Typical sensor sensitivities were taken from representative calibrations for the sensor listed.
1-8
Lake Shore Model 340 Temperature Controller User's Manual
Table 1-2. Model 340 Sensor Input Performance Chart
Silicon Diode GaAlAs Diode
Negative Negative
Volts (V) Volts (V)
0 - 2.5 V 0 – 7.5 V
10 µA ±0.01% 10 µA ±0.01%
10 µV 10 µV
DT-470-CO-13 with TG-120SD with 1.4H
1.4H calibration calibration
1.4 – 475 K 1.4 - 475 K
Lake Shore Requires calibrated
Curve 10 sensor
-30 mV/K at 4.2 K -180 mV/K at 10 K
-1.9 mV/K at 77 K -1.25 mV/K at 77 K
-2.4 mV/K at 300 K -2.75 mV/K at 300 K
-2.2 mV/K at 475 K -2.75 mV/K at 475 K
10 µV 10 µV
0.4 mK at 4.2 K 0.1 mK at 10 K
5.5 mK at 77 K 8.0 mK at 77 K
4.2 mK at 300 K 3.6 mK at 300 K
4.5 mK at 475 K 3.6 mK at 475 K
±80 µV ±0.005% ±80 µV ±0.01%
of reading of reading
±5 mK at 4.2 K ±3 mK at 10 K
±70 mK at 77 K ±150 mK at 77 K
±50 mK at 300 K ±75 mK at 300 K
±40 mK at 475 K ±55 mK at 475 K
±27 mK at 4.2 K ±23 mK at 10 K
±110 mK at 77 K ±195 mK at 77 K
±85 mK at 300 K ±120 mK at 300 K
±150 mK at 475 K ±165 mK at 475 K
±20 µV ±20 µV
±0.8 mK at 4.2 K ±0.2 mK at 10 K
±11 mK at 77 K ±16 mK at 77 K
±8.4 mK at 300 K ±7.2 mK at 300 K
±9 mK at 475 K ±7.2 mK at 475 K
Recommended for Recommended for
T ≥ 60 K and B ≤ 3 T T > 4.2 K & B ≤ 5 T
100 Ω Platinum RTD 100 Ω Platinum RTD
250 Ω Full scale 500 Ω Full scale
Positive Positive
Ohms (Ω) Ohms (Ω)
0 – 250 Ω 0 – 500 Ω
1 mA 1 mA
1 mΩ 1 mΩ
PT-103 with 14J PT-103 with 14J
calibration calibration
30 – 675 K 30 – 800 K
DIN 43760 DIN 43760
0.19 Ω /K at 30 K 0.19 Ω /K at 30 K
0.42 Ω /K at 77 K 0.42 Ω /K at 77 K
0.39 Ω /K at 300 K 0.39 Ω /K at 300 K
0.34 Ω /K at 675 K 0.33 Ω /K at 800 K
1 mΩ 1 mΩ
5.3 mK at 30 K 5.3 mK at 30 K
2.4 mK at 77 K 2.4 mK at 77 K
2.6 mK at 300 K 2.6 mK at 300 K
3.0 mK at 675 K 3.0 mK at 800 K
±0.002 Ω ±0.01% ±0.002 Ω ±0.01%
of reading of reading
±16 mK at 30 K ±16 mK at 30 K
±10 mK at 77 K ±10 mK at 77 K
±31 mK at 300 K ±31 mK at 300 K
±82 mK at 675 K ±82 mK at 800 K
±26 mK at 30 K ±26 mK at 30 K
±20 mK at 77 K ±20 mK at 77 K
±51 mK at 300 K ±51 mK at 300 K
±182 mK at 800 K
±182 mK at 675 K
±2 mΩ ±2 mΩ
±11 mK at 30 K ±11 mK at 30 K
±4.8 mK at 77 K ±4.8 mK at 77 K
±5.2 mK at 300 K ±5.2 mK at 300 K
±6.0 mK at 675 K ±6.0 mK at 800 K
Recommended for Recommended for
T > 40 K & B ≤ 2.5 T T > 40 K & B ≤ 2.5 T
1000 Ω
Platinum RTD
Positive
Ohms (Ω)
0 – 2500 Ω
0.1 mA
10 mΩ
*
PT-1001 with 1.4G
calibration
30 – 675 K
Scaled from
DIN 43760
1.9 Ω /K at 30 K
4.2 Ω /K at 77 K
3.9 Ω /K at 300 K
3.4 Ω /K at 675 K
10 mΩ
5.3 mK at 30 K
2.4 mK at 77 K
2.6 mK at 300 K
3.0 mK at 675 K
±0.03 Ω ±0.02%
of reading
±26 mK at 30 K
±17 mK at 77 K
±59 mK at 300 K
±161 mK at 675 K
±36 mK at 30 K
±27 mK at 77 K
±79 mK at 300 K
±261 mK at 675 K
±20 mΩ
±11 mK at 30 K
±4.8 mK at 77 K
±5.2 mK at 300 K
±6.0 mK at 675 K
Recommended for
T > 40 K & B ≤ 2.5 T
Introduction