This manual provides the operating instructions for the UNITY Thermal Desorber.
The document serves as a comprehensive user guide for the Markes UNITY Thermal Desorber. It covers pre-installation checks, system description, and detailed operational procedures including sample tube insertion, desorption modes (2-stage or 3-stage), and calibration methods.
The manual also addresses practical considerations such as sorbent selection, method development, leak testing, and routine maintenance tasks like changing seals and filters. It includes specific guidance on integrating the UNITY system with external accessories like Flow Control Modules and autosamplers.
The manual lists specific requirements for the computer used to control the system, but does not detail them in the provided text.
The device supports various sorbents including Tenax TA, Chromosorb 106, Carbotrap C, and Molecular Sieve.
Failures can be caused by worn O-rings, interference from fibers or particles, damaged seals, or leaking split filter tube seals.