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Cryogenic Temperature Controllers
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Model 370 AC Resistance Bridge

​Model 370 Features

  • ​Resistance measurement ranges from 2 mΩ to 2 MΩ
  • 21 excitation levels from 3.16 pA to 31.6 mA
  • Displays real-time sensor excitation power
  • One sensor input (up to 8 or 16 with scanner)
  • PID temperature control
  • IEEE-488 and RS-232C interfaces, alarms, relays, and analog outputs
  • Unique noise-reduction elements:
    • Patented current source preserves common mode noise rejection
    • Optically isolated measurement electronics eliminates the potential for ground loops
More information on the Model 370 AC Resistance Bridge
Model 350 Cryogenic Temperature Controller

AVAILABLE JUNE 2012

Model 350 Features

  • ​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 at the extremes, with verifiable product specifications
  • Full 3 year standard warranty
More information on the Model 350 Cryogenic Temperature Controller
Model 336 Cryogenic Temperature Controller

Model 336 features

  • Operates down to 300 mK with appropriate NTC RTD sensors
  • Four sensor inputs and four independent control outputs
  • Two PID control loops: 100 W and 50 W into a 50 or 25 Ω load
  • Autotuning automatically collects PID parameters
  • Automatically switch sensor inputs using zones to allow continuous measurement and control from 300 mK to 1505 K
  • Custom display setup allows you to label each sensor input
  • Ethernet, USB and IEEE-488 interfaces
  • Supports diode, RTD, and thermocouple temperature sensors
  • Sensor excitation current reversal eliminates thermal EMF errors for resistance sensors
  • ±10 V analog voltage outputs, alarms, and relays
More information on the Model 336 Cryogenic Temperature Controller
Model 340 Cryogenic Temperature Controller

Model 340 features

  • Operates down to 100 mK with appropriate NTC RTD sensors
  • Two sensor inputs; expandable to ten sensor inputs
  • Supports diode, RTD, capacitance, and thermocouple sensors
  • Sensor excitation current reversal eliminates thermal EMF errors
  • Two autotuning control loops: 100 W and 1 W
  • IEEE-488 and RS-232C interfaces, analog outputs, digital I/O, and alarm relays
More information on the Model 340 Cryogenic Temperature Controller
Model 335 Cryogenic Temperature Controller

Model 335 features

  • Operates down to 300 mK with appropriate NTC RTD sensors
  • Two sensor inputs
  • Two configurable PID control loops providing 50 W and 25 W or 75 W and 1 W
  • Autotuning automatically collects PID parameters
  • Automatically switch sensor inputs using zones to allow continuous measurement and control from 300 mK to 1505 K
  • Custom display set-up allows you to label each sensor input
  • USB and IEEE-488 interfaces
  • Supports diode, RTD, and thermocouple temperature sensors
  • Sensor excitation current reversal eliminates thermal EMF errors for resistance sensors
  • ±10 V analog voltage output, alarms, and relays
More information on the Model 335 Cryogenic Temperature Controller
Model 325 Cryogenic Temperature Controller

Model 325 features

  • Operates down to 1.2 K with appropriate sensors
  • Two sensor inputs
  • Supports diode, RTD, and thermocouple sensors
  • Sensor excitation current reversal eliminates thermal EMF errors for resistance sensors
  • Two autotuning control loops: 25 W and 2 W maximum
  • Control loop 2: variable DC voltage source from 0 to 10 V maximum
  • IEEE-488 and RS-232C interfaces
More information on the Model 325 Cryogenic Temperature Controller
   Model 332
   
 

​The Model 332 is being replaced by the Model 335. Limited quantities of the Model 332 are still available on the Discounted Equipment page.

   
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