Temperature Instruments

Temperature Instruments

Temperature

Temperature Controllers

  • Model 372 AC Resistance Bridge
  • Model 350
  • Model 336
  • Model 335
  • Model 325
Model 372 AC Resistance Bridge

The Model 372 AC resistance bridge and temperature controller builds on the solid foundation provided by the original Lake Shore AC resistance bridge. The Model 372 provides the best possible temperature measurement and control capabilities for dilution refrigerators (DRs) that are intended to be operated below 100 mK. The Model 372 makes it easy to perform multiple tasks that were once very difficult to perform reliably at ultra-low temperatures:

  • Temperature measurement
  • Automatic or manual temperature control
  • Device or sample impedance measurements

1 Control,1 Measurement

10W Heater

Max 16 Channels

Manual PID-Zone

USB-Ethernet-IEEE-488.2

1 NO,1 NC, C Contacts

Model 350

The Model 372 AC resistance bridge and temperature controller builds on the solid foundation provided by the original Lake Shore AC resistance bridge. The Model 372 provides the best possible temperature measurement and control capabilities for dilution refrigerators (DRs) that are intended to be operated below 100 mK. The Model 372 makes it easy to perform multiple tasks that were once very difficult to perform reliably at ultra-low temperatures:

  • 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 Inputs

75W +1W

100mK - 1500K

Manual PID-Zone

USB-Ethernet-IEEE-488.2

1 NO,1 NC, C,Contacts

Model 336

The first of a new generation of innovative temperature measurement and control solutions by Lake Shore, the Model 336 temperature controller comes standard equipped with many advanced features promised to deliver the functionality and reliable service you’ve come to expect from the world leader in cryogenic thermometry. The Model 336 is the only temperature controller available with four sensor inputs, four control outputs and 150 W of low noise heater power. 

  • Operates down to 300 mK with appropriate NTC RTD sensors
  • Four sensor inputs and four independent control outputs 
  • Automatically switch sensor inputs using zones to allow continuous measurement and control from 300 mK to 1505 K
  • Autotuning automatically collects PID parameters

4 Inputs

100W +50W

300mK - 1505K

Manual PID-Zone

USB-Ethernet- IEEE-488.2

1 NO,1 NC, C Contacts

Model 335

Designed with the user and ease of use in mind, the 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. 

  • Operates down to 300 mK with appropriate NTC RTD sensors
  • Automatically switch sensor inputs using zones to allow continuous measurement and control from 300 mK to 1505 K
  • Two configurable PID control loops providing 50 W and 25 W or 75 W and 1 W
  • Autotuning automatically collects PID parameters

2 Inputs

75W +1W

300mK - 1505K

Manual PID-Zone

USB-IEEE-488.2

1 NO,1 NC, C Contacts

Model 325

The Model 325 dual-channel cryogenic temperature controller is capable of supporting nearly any diode, RTD, or thermocouple temperature sensor.  

  • Operates down to 1.2 K with appropriate sensors
  • Supports diode, RTD, and thermocouple sensors
  • Sensor excitation current reversal eliminates thermal EMF errors for resistance sensors

2 Inputs

25W +2W

1.2K - 1505K

Manual PID-Zone

RS232C-IEEE-488.2

Comparison Chart Model 372 Model 350 Model 336 Model 335 Model 325
AC Resistance Bridge
+
-
-
-
-

Number Of Sensor Input

(Optional)

2
(17)

4

(8)

4
2
2
Lowest Temperature
<20mK
100mK
300mK
300mK
1.2K
Highest Temperature
420K
1500K
1500K
1500K
1500K
Number Of Heater Outputs
3
4
4
2
2
Total Heat Power
10W+1W+1W
75W+1W+1W+1W
100W+50W

75W+1W

(50W+25W)

25W+2W

Temperature Monitors

  • Model 240
  • Model 224
  • Model 218
  • Model 211
Model 240
  • Two or eight cryogenic temperature sensor inputs
  • Supports industry-leading Lake Shore Cernox®, platinum, and other RTDs, plus DT-670 diodes
  • Precision measurement circuitry with on-board conversion to calibrated temperature units
  • Monitor temperatures down to 1 K and up to 800 K
  • Current reversal to minimize thermoelectric offsets
  • Front-mounted OLED screen for temperature and status reporting
  • Fully configurable through direct USB connection
  • PROFIBUS-DP communication integrates with distributed PLC-based control architectures
  • Easy DIN rail mounting with integrated rear connections for shared power and network

2 or 8 Inputs

1.0K - 800K

USB

Model 224
The Lake Shore Model 224 temperature monitor offers precision measurement in a wide range of cryogenic and higher-temperature applications with the ability to easily monitor up to 12 sensor channels. It provides better measurement performance in applications where researchers need to ensure accuracy and precision in their low cryogenic temperature monitoring. Used with Lake Shore’s Cernox® sensors, the Model 224 enables reliable and repeatable temperature measurement over a broad range and as low as 300 mK. Cernox thin-film RTD sensors offer high sensitivity and low magnetic field-induced errors at cryogenic temperatures. The Model 224 has been optimized for use with these well-respected temperature sensors, and features many of the same advanced capabilities of Lake Shore Model 336 temperature controller, including its proven high-precision input circuitry.

12 Inputs

300 mK - 1500K

USB,Ethernet, IEEE-488

Model 218
The Model 218 is our most versatile temperature monitor. With eight sensor inputs, it can be used with nearly any diode or resistive temperature sensor. It displays all eight channels continuously in K, °C, V or Ω. The measurement input was designed for the demands of cryogenic temperature measurement, however, the monitor’s low noise, high resolution, and wide operating range make it ideal for non-cryogenic applications as well. Two high-resolution A/D converters increase the update rate of the Model 218. It can read sensor inputs more quickly than other scanning monitors because it does not have to wait for current source switching. The result is 16 new readings per second, allowing all inputs to be read twice each second.

8 Inputs

1.2K - 800K

RS232-IEEE-488

Model 218
The Lake Shore single-channel Model 211 temperature monitor provides the accuracy, resolution, and interface features of a benchtop temperature monitor in an easy to use, easily integrated, compact instrument. With appropriate sensors, the Model 211 measures temperature from 1.4 K to 800 K including temperatures in high vacuum and magnetic fields. Alarms, relays, user-configurable analog voltage or current output, and a serial interface are standard features on the Model 211. It is a good choice for liquefied gas storage and monitoring, cryopump control, cryo-cooler, and materials science applications, and for applications that require greater accuracy than thermocouples allow.

1 Inputs

1.4K - 800K

RS232

Cryogenic Accessories