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240 Series Input Modules

Model 240 Series features

  • 2 or 8 cryogenic temperature sensor inputs
  • Supports industry-leading Lake Shore Cernox®, platinum, and other RTDs, plus DT-670 diodes
  • Monitor temperatures from 1 K to 800 K
  • PROFIBUS-DP communication integrates with distributed PLC-based control architectures

Simplifying large-scale cryogenic temperature measurement

The 240 Series offers a convenient, modular input solution for precision monitoring of cryogenic temperature sensors in large-scale applications employing distributed PLC-based control.

Lake Shore benchtop cryogenic instruments are trusted throughout the world for precision temperature measurement—now that same measurement performance can be achieved in widely distributed high-energy applications, like particle accelerators and fusion reactors, as well as other large industrial sites.

Benefits of the 240 Series input modules

  • Native support for PROFIBUS, allowing the modules to be integrated into a wide range of PLC networks
  • Temperature values are communicated directly with the PLC master device, removing the need to use additional costly analog conversion equipment or complex PLC programming to generate temperature values
  • Measurement circuitry based on Lake Shore’s industry leading benchtop instruments, allowing for longer cable runs between sensor and module; ideal for applications where sensors must be located in hazardous environments
  • Normal mode with EMF-cancellation and signal filtering for the best measurement possible or high-speed mode for the fastest notification of a temperature change
  • A high-quality OLED display on the front provides helpful status and measurement data; this is in addition to being able to access this information via the PLC network or the local USB connection
  • Convenient pluggable connectors allow individual sensors to be disconnected for maintenance without losing readings from other sensors on the same module
  • Easy DIN rail mounting with integrated rear connections allowing power and fieldbus communications to be shared between modules

For more information, including specifications, charts, and downloadable resources, visit the 240 Series page on the Lake Shore website.

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