The column heater (see the following image) provides temperature control for the analytical and guard columns.
The heater temperature can be set to between 30—60°C. The set temperature must be at least 5°C above the ambient temperature.
A thermistor mounted in the heater block monitors the temperature. If the temperature exceeds 70°C, the column heater is shut off and an error message is displayed in the Chromeleon CDS audit trail. For troubleshooting guidance, see Troubleshooting error messages.
The column heater can be installed at the factory or installed on-site by Thermo Fisher Scientific service engineers or users.