Model 350 Ultra-Low Cryogenic Temperature Controller
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www.lakeshore.com MODEL 350 U LT R A - LO W C R YO G E N I C T E M P E R AT U R E CONTROLLER Ideal for use with He-3 systems and other ultra-low temperature refrigeration platforms down to 100 mK O P T I M I Z E D C E R N O X ™ PERFORMANCE

Model 350 Ultra-Low Cryogenic Temperature Controller Ideal for use with He-3 systems and other ultra-low temperature refrigeration platforms down to 100 mK Optimized performance with Cernox™ RTDs Patented low-noise input circuitry enables super low excitation power for minimal self-heating and high resolution measurement 4 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 Proven, intuitive interface Performance assurance even...

sensor type is selected, and automatically scales current to minimize self-heating effects at low temperatures. The patented input circuitry eliminates any errors associated with grounding inconsistencies, making it easier to achieve reliable measurements at ultra-low temperatures. With the ability to label each sensor input channel with a customized name, it’s also easy to identify the measured values being displayed. 3 option cards for more inputs and a wider range of applications Field installable input option cards can expand your sensor selection to include silicon diodes (like...

Configurable Display crystal display with an LED backlight that simultaneously displays up to eight readings. You can show all four loops, or if you need to monitor one input, you can displayjust that one in greater detail. Or you can custom configure each display location to suit your experiment. Data from any input can be assigned to any of the locations, and your choice of temperature or sensor units can be displayed. For added convenience, you can also custom label each sensor input, eliminating the guesswork in remembering ordeterminingthe location to which a sensor H: SamPle Space E:...

Typical Sensor Performance Example Lake Shore Sensor Temperature (K) Nominal Resistance/ Voltage Typical Sensor Sensitivity2 Measurement Resolution: Temperature Equivalents Electronic Accuracy: Temperature Equivalents Cernox™ (1 mV) CX-1010-SD with 0.1L calibration Cernox™ (10 mV) CX-1050-SD-HT4 with 1.4M calibration Germanium (1 mV) GR-50-AA with 0.05A calibration Germanium (10 mV) GR-300-AA with 0.3D calibration Germanium (10 mV) GR-1400-AA with 1.4D calibration Rox™ (1 mV) RX-102B-CB with 0.02C calibration 0.1 0.3 0.5 4.2 300 1.4 4.2 77 420 0.1 0.3 0.5 1.4 4.2 0.3 1.4 4.2 100 1.4 4.2 77...

Model 350 Specifications Input Specifications Standard inputs Input range Excitation current Display resolution Measurement resolution6 Electronic accuracy (at 25 °C) Measurement temperature coefficient Electronic control stability7 0 ) to 10 ) 0 ) to 30 ) 0 ) to 100 ) 0 ) to 300 ) 0 ) to 1 k) 0 ) to 3 k) 0 ) to 10 k) 0 ) to 30 k) 0 ) to 100 k) 0 ) to 300 k) 0 ) to 10 ) 0 ) to 30 ) 0 ) to 100 ) 0 ) to 300 ) 0 ) to 1 k) 0 ) to 3 k) 0 ) to 10 k) 0 ) to 30 k) 0 ) to 100 k) 1 mA9 300 µA9 100 µA9 30 µA9 10 µA9 3 µA9 1 µA9 300 nA9 100 nA9 30 nA9 100 µA9 30 µA9 10 µA9 3 µA9 1 µA9 300 nA9 100 nA9...

Input configuration Input accuracy Measurement resolution Maximum update rate User curves 4 (8 with optional scannercard) Inputs can be configured from the front panel to accept any of the supported input types. Thermocouple, capacitance and diode inputs require an optional input card thatcan be installed in the field. Once installed, the optional inputs can be selected from the front panel like anyotherinputtype. Sensor inputs optically isolated from other circuits but noteach Sensor dependent, referto Input Specifications table Sensor dependent, referto Input Specifications table...

Interface Lake Shore Cryotronics, Inc. 575 McCorkle Boulevard Westerville, OH 43082-8888 USA Tel 614-891-2244 Fax 614-818-1600 e-mail info@lakeshore.com www.lakeshore.com IEEE-488.2 Capabilities SH1, AH1, T5, L4, SR1, RL1, PP0, DC1, DT0, C0, E1 Reading rate To 10 rdg/s on each input Software support LabVIEW™ driver (contact Lake Shore for availability) USB Function Emulates a standard RS-232 serial port Baud rate 57,600 Connector B-type USB connector Reading rate To 10 rdg/s on each input Software support LabVIEW™ driver (contact Lake Shore for availability) Ethernet Function TCP/IP, web...