Eon-LT by Colnatec


A Compact, Affordable PC-Based Film Thickness Monitor with Temperature Measurement


The Eon-LT is a temperature measuring film thickness monitor that surpasses conventional monitors that are blind to thermal changes of the crystal. The combination of frequency and temperature measurement allows unprecedented accuracy in real-time rate and film thickness monitoring.

Why measure temperature?

Because the frequency change of a crystal by process heating can easily be equal to the frequency change caused by coating. In normal operation there is a built-in 10% error in most rate measurements. In the worst case it can be 100%. Why measure if your measurements are always wrong? Eon-LT incorporates a temperature measurement system and software to offset these errors, providing the most accurate film thickness measurement system available.

Eon-LT Features

  • Temperature measurement for added precision
  • Shutter on/off support (relays)
  • Connectivity: RS-232, USB, and WiFi
  • Operated using the included, easy-to-use software or controlled via Colnatec’s
    documented RS232 protocol.
  • Dual channels for expanded capability


Eon-LT Options

Choose whether you would like an internal or external oscillator. Please note the following information:

  • Eon LT Monitor- Int  —Everything is included to hook up the unit, BUT the EonLT unit can’t be any farther than 6-12″ from the feedthrough
  • Eon LT Monitor – Ext (External Oscillator) $895 This is electrically modified to run a separate oscillator to allow you to place the Eon LT up to 10 feet away from the feedthrough. However, you must buy an external oscillator package to go with it.

Additional information

Weight 5 lbs
Dimensions 18 × 12 × 4 in
Included Accessories

Eon-LT Film Thickness Monitor 6" BNC Cable and Power Supply Software CD, User Manual, Quick Start Guide, and Warranty

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