Thermo Fisher Scientific’s (Chromeleon 7.x and later) is one of the most widely used Chromatography Data Systems (CDS) in regulated and non-regulated laboratories. At the heart of its software asset management lies the Chromeleon license file — a small but critical component that governs concurrent access, instrument control, and optional modules.
Complete the Chromeleon software installation on the target computer before proceeding with license transfer.
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The process for installing the license file depends on whether you have a physical USB dongle or a newer digital license. Method A: Using a New Chromeleon 7.2/7.3 Dongle chromeleon license file
Laboratory instrument computers have finite lifespans. When migrating Chromeleon to new hardware, moving the license correctly is essential to maintain compliance and avoid service interruptions.
The second scenario involves an empty USB dongle (containing only the serial number but no license data) and a separate license file provided on CD-ROM or via electronic download. This configuration requires manual activation of the license file through the Chromeleon Administration Console.
The first component is a USB-based hardware security device commonly referred to as the dongle. This small physical key plugs into a USB port on the computer where Chromeleon runs. The dongle serves as a hardware-based copy protection mechanism, preventing unauthorized software usage across multiple machines. Thermo Fisher Scientific’s (Chromeleon 7
If your software maintenance agreement (SMA) has lapsed, newer versions of Chromeleon may not accept an older license file.
Despite careful planning, license-related issues can and do occur. The following troubleshooting guide addresses the most common problems encountered by Chromeleon users.
Yes — concatenate the contents of both .lic files (with a line break) and restart the license daemon. Do not edit any other part. “Who is this
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In a stand‑alone configuration, the USB license key is plugged directly into the computer running Chromeleon. The license file resides on that same machine. This is the simplest deployment model, ideal for single‑user laboratories or dedicated instrument control PCs.
Without a valid license file accessible to the server, Chromeleon will either fail to launch or run in a severely restricted “viewer-only” mode.
The server typically starts automatically when the computer boots. If the server is not running, use the Server Monitor Program to launch it before entering license information.