Temperature Measurement & Control

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The Lake Shore Temperature and Measurement Control Catalogue features 200 pages of technical data, performance characteristics, and product descriptions.

Selection guides simplify choosing appropriate cryogenic sensor, instrument, and accessory solutions, while a comprehensive 65-page reference section includes an overview of thermometry, sensor application notes and installation instructions, common units and conversion tables, and cryogenic reference tables.

Lake Shore's Model 350 is an ultra-low cryogenic temperature controller designed for the demands of pumped He-3 refrigerators, adiabatic demagnetization refrigerators (ADRs) and a number of other dilution refrigerators. A powerful physics tool, the Model 350 provides excellent measurement performance, superior control accuracy, and convenient operation in a wide range of advanced research applications.
 
The patented noise reduction input circuitry of the Model 350 is just one reason why this controller works so well for ultra-low temperature (ULT) applications, all the way down to 100 mK. When combined with precision Cernox sensors, this performance-optimised design allows as little as 10 nA of excitation current to be used, minimising self-heating effects, and ensures best possible measurement accuracy throughout the entire temperature range.
 
The instrument offers extraordinary capability and flexibility, often eliminating the need for additional instrumentation in a refrigeration control system. Its four input channels and four independent control outputs are configurable to support a broad range of I/O requirements, including the heaters and auxiliary devices typical of ULT refrigeration systems, as well as other cryogenic sensor types like ruthenium oxide and platinum RTDs. Standard computer interfaces enable remote communications, control and coordination with other systems.

* With optional Model 3062 4-channel card.

• Ideal for use with He-3 systems and other ultra-low temperature refrigeration platforms down to 100 mK
• Optimised performance with Cernox™ RTDs
• Patented low-noise input circuitry enables super low excitation power for minimal self-heating and high resolution measurement
• 4 or 8* independent control loops and a broad range of I/O configurations can eliminate need for additional instrumentation
• 4 PID-controlled outputs: 75 W warm-up heater, 1 W sample heater, and 2 auxiliary 1 W ±10 V outputs

Lake Shore's Model 336 Temperature Controller is the only temperature controller available with 4 or 8* sensor inputs that can have custom labels, four control outputs and 150 W of low noise heater power. Two independent heater outputs providing 100 W and 50 W can be associated with any of the four sensor inputs and programmed for closed loop temperature control in proportional-integral-derivative (PID) mode. The improved autotuning feature of the Model 336 can be used to automatically collect PID parameters, so you spend less time tuning your controller and more time conducting experiments.
 
With standard Ethernet, USB, and IEEE-488 interfaces and an intuitive menu structure and logic, the Model 336 was designed with efficiency, reliable connectivity, and ease of use in mind. While you may need to leave your lab, Ethernet ensures you’ll always be connected to your experiments. In many applications, the unparalleled feature set of the Model 336 allows you to replace several instruments with one, saving time, money and valuable laboratory space.

* With optional Model 3062 4-channel card.

Lake Shore's Model 335 Temperature Controller offers many user-configurable features and advanced functions that until now have been reserved for more expensive, high-end temperature controllers. It is the first two-channel temperature controller available with user configurable heater outputs delivering a total of 75 W of low noise heater power — 50 W and 25 W, or 75 W and 1 W.
 
Control outputs are equipped with both hardware and software features allowing you, and not your temperature controller, to easily control your experiments. Output one functions as a current output while output two can be configured in either current or voltage mode. With output two in voltage mode, it functions as a ±10 V analogue output while still providing 1 W of heater power and full closed loop proportional-integral derivative (PID) control capability with autotuning. Alarms and relays are included to help automate secondary control functions. The controller’s zone tuning feature also allows you to measure and control temperatures seamlessly from 300 mK to over 1,500 K. This feature automatically switches temperature sensor inputs when your temperature range goes beyond the useable range of a given sensor.
 
USB and IEEE-488 interfaces, intuitive menu structure and logic promote efficiency and ease of use along with drop-in compatibility for the popular Model 331 and 332 temperature controllers through software emulation.

• Sensor measurement performance matches Model 336
• Field-installable thermocouple option
• Two heater outputs configurable for 50 & 25 W or 75 & 1 W
• USB and IEEE-488 interfaces
• 331/332 software emulation modes for compatibility
• New keypad logic and menu structure
• Improved auto-tuning
• Ability to custom label sensor inputs
• Auto switching sensor inputs for continuous measurement and control from 300 mK to 1505 K

Lakes Shore's Model 325 Dual-channel Cryogenic Temperature Controller is capable of supporting nearly any diode, RTD, or thermocouple temperature sensor. Two independent PID control loops with heater outputs of 25 W and 2 W are configured to drive either a 50 Ω or 25 Ω load for optimal cryocooler control flexibility. Designed with ease of use, functionality, and value in mind, the Model 325 is ideal for general-purpose laboratory and industrial temperature measurement and control applications.

Video overview of Model 325