Lake Shore Model 330 Autotuning Temperature Controller User’s Manual
Introduction 1-3
Table 1-1. Electronic Information for Various Sensors and Temperature Ranges
Suffix 1 2 3 4 *
Sensor Type Silicon Diode 100Ω Platinum RTD GaAlAs Diode Thermocouple
Sensor Temperature
Coefficient Negative Positive Negative Positive
Sensor Units Volts (V) Ohms (Ω) Volts (V) Millivolts (mV)
Input Range 0 – 2.5 V 0 – 300 Ω 0 – 6 V ±15 mV
Sensor Excitation 10 µA ±0.1% 1 mA ±0.01% 10 µA ±0.1% N/A
constant current constant current constant current
The following specifications reflect operational characteristics with the specified Lake Shore Sensor.
Example Lake DT-470-C0 PT-103 TG-120P Ch-AuFe 0.07%
Shore Sensor with 1.4HS calibration with 1.4L calibration with 14J calibration
Sensor Temp. Range 1.4 – 475 K 30 – 800 K 1.4 – 325 K 1.4 – 325 K
Standard Sensor LSCI Curve 10 DIN 43760 Needs Calibration NBS/NIST generated
Curve and 8001
Precision Option
Typical Sensor –30 mV/K at 4.2 K 0.19 Ω /K at 30 K –180 mV/K at 4.2 K 16 µV/K at 4.2 K
Sensitivity –1.9 mV/K at 77 K 0.42 Ω /K at 77 K –1.25 mV/K at 77 K 20 µV/K at 300 K
–2.4 mV/K at 300 K 0.39 Ω /K at 300 K –2.75 mV/K at 300 K
–2.2 mV/K at 475 K 0.33 Ω /K at 800 K
Measurement Resolution:
Sensor Units 0.04 mV 5 m Ω 0.09 mV 0.45 µV
Temperature 1.3 mK at 4.2 K 26 mK at 30 K 0.5 mK at 4.2 K 30 mK at 4.2 K
Equivalence 21 mK at 77 K 12 mK at 77 K 72 mK at 77 K 22 mK at 300 K
16 mK at 300 K 13 mK at 300 K 32 mK at 300 K
18 mK at 475 K 15 mK at 800 K
Sensor Units
Display Resolution 0.1 mV to 1 mV 0.01 Ω to 0.1 Ω 0.1 mV to 1 mV 1 µV
Measurement
Accuracy
±125 µV ±0.015% RDG ±12 m Ω ±0.04% RDG ±200 µV ±0.035% ±1.5 µV + 0.1% RDG
Temperature ±50 mK at 4.2 K ±45 mK at 30K ±40 mK at 4.2 K ±406 mK at 4.2K
†
Accuracy with ±120 mK at 77 K ±62 mK at 77K ±350 mK at 77 K ±110 mK at 300K
Calibrated Sensor and ±80 mK at 300 K ±105 mK at 300K ±150 mK at 300 K
8001 Precision Option ±75 mK at 475 K ±235 mK at 800K
Measurement Temperature Coefficient
Sensor Units ±0.002% ±0.004% ±0.006% ±0.01%
(%RDG/°C Ambient)
Control Stability: ±2.5 mK at 4.2 K ±15 mK at 30 K ±5 mK at 4.2 K ±40 mK at 4.2 K
±25 mK at 77 K ±15 mK at 77 K ±50 mK at 77 K ±40 mK at 300 K
±25 mK at 300 K ±15 mK at 300 K ±50 mK at 300 K
±25 mK at 800 K
* Thermocouple data is for uncompensated inputs.
†
Sensor calibration and 8001 Precision Option are not available for thermocouples. The error listed is for the instrument only.
Table 1-1 identifies the input configurations possible with this instrument. System performance with any of the inputs depends greatly on
sensor characteristics. Much of the typical data presented here is based on the Lake Shore sensor listed in each column. Other sensors
of the same type can be used with the instrument. Similar performance can be expected if the sensor sensitivities match.
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