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Cryogenic Temperature Controllers

Temperature controllers for cryo applications are based on closed loop PID control, often referred to as feedback control. As a result, Lake Shore's temperature controllers are capable of covering a temperature range from 100 mK to 1500 K. The control loop includes up to 100 W of output power for the heating element.

Key Features

Temperature range from 100 mK to 1500 K
Up to four 100 W PID outputs
Wide range of temperature sensors supported
Ethernet, USB and IEEE-488 interfaces

Model Overview Table Lake Shore Catalog

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Parameters

Model	Description	Number of sensor inputs (optional)	Nominal low temperature	Types of standard compatible sensors	Optional compatible sensors	Nominal high temperature	Number of outputs	Total heating cell output
Model 325	Cryogenic controller for low temperatures	2	1,2 K	Cernox TM Silicon diodes Other NTC RTDs PTD RTDs	Thermocouples	420 K (Cernox) 1500 K (thermocouple)	2	25 W + 2 W
Model 335	Advanced cryogenic controller for low temperatures	2	300 mK	Cernox TM Silicon diodes Other NTC RTDs PTD RTDs	Thermocouples	420 K (Cernox) 1500 K (thermocouple)	2	75 W + 1 W or 50 W + 25 W
Model 336	Advanced cryogenic controller for low temperatures	4	300 mK	Cernox TM Silicon diodes Other NTC RTDs PTD RTDs	Thermocouples Capacitive	420 K (Cernox) 1500 K (thermocouple)	4	100 W + 50 W
Model 350	Cryogenic controller for ultra-low temperatures	4 (8)	100 mK	Cernox TM Silicon diodes Other NTC RTDs PTD RTDs	Silicon Diodes Thermocouples Capacitive	420 K (Cernox) 1500 K (thermocouple)	4	75 W + 1 W + 1 W + 1 W
Model 372	Advanced cryogenic controller for ultra-low temperatures	2 (17)	< 20 mK	Cernox TM Silicon diodes Other NTC RTDs PTD RTDs	-	420 K (Cernox)	3	10 W + 1 W + 1 W

Model 350 Cryogenic Temperature Controller

Ideal for use with He-3 systems and other ultra-low temperature refrigeration systems
Temperature range up to 100 mK
Optimized for use with Cernox® RTDs temperature sensors
High-resolution temperature measurement
Four independent control loops and a wide range of I/O configurations
Four PID-controlled outputs: 75 W and 1 W heating, two additional 1 W ±10 V outputs

View on www.lakeshore.com

Model 336 Cryogenic Temperature Controller

Can be used up to 300 mK
Two PID control loops: 100 W and 50 W (50 or 25 Ω load)
Autotuning function provides automatic PID parameter acquisition
Sensor support: diodes, RTDs and thermocouples
Elimination of thermal EMF error of resistive sensors (reversal current sensor excitation)

View at www.lakeshore.com

Model 335 Cryogenic Temperature Controller

Can be used up to 300 mK
Two configurable PID control loops: 50 W and 25 W or 75 W and 1 W
Autotuning function provides automatic PID parameter acquisition
USB and IEEE-488 interfaces
Sensor support: diodes, RTDs and thermocouples
Elimination of temperature EMF error of resistive sensors (reversal current sensor excitation)

View at www.lakeshore.com

Model 325 Cryogenic Temperature Controller

Can be used up to 1.2 K
Two sensor outputs
Sensor support: diodes, RTDs and thermocouples
Elimination of temperature EMF error of resistive sensors (reversal current sensor excitation)
Two control loops with autotuning function: 25 W and 2 W (maximum)
Control loop 2: DC voltage source with 0 to 10 V range
IEEE-488 and RS-232C interface

View at www.lakeshore.com

Model 372 AC Resistance Bridge

Temperature control and measurement for dissolving refrigerators (DRs)
Temperature control below 100 mK
Patented noise suppression technology

View at www.lakeshore.com

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