Scientific Analytical Calorimeter Solutions

Compensation | CAL3K Features

The CAL3K calorimeter range has two main compensations:

  • Firing Wire and Cotton Compensation
  • Sulphur Compensation

Minor compensations are :

  • Fibre Compensation (for food analysis)
  • Moisture Compensation
  • Gelatin Capsule Compensation

A brief explanation :

Cotton and Firing Wire Compensation: Compensates for the firing energy and the cotton thread. Entry in degrees Celsius. Default: 0.04°C.

Sulphur Compensation: Compensates for the formation of sulphuric acid. Entry in KJ/g. Default: 0KJ/g. It is disabled during calibration.

Fibre Compensation: Used during food/feed analysis. Entry in percentage (of mass). Default: 0%.

Moisture Compensation: Must be used when reporting in DRY form. Entry in percentage (of mass). Default: 0%.

Gelatin Capsules: Used with powdery substances. Used in the spiking procedure. Entry in degrees Celsius. It is enabled with keyboard command.


The calibration of the CAL3K is a process in which a substance (Benzoic Acid, BA) of known calorific value is burned so that future burning of unknown substances can be compared to it. In other words the calibration records all the system variables such as temperature rise and heat loss in memory. All this data is called a calibration field. The calibrations are stored in the vessel.

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To perform a standard calibration using Benzoic Acid Tablets you will need : A working oxygen bomb calorimeter system connected to a power source, A CAL3K Manual Oxygen Filing Station connected to an oxygen supply (not needed when using the CAL3K-AP Calorimeter)...

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The CAL3K system uses two calibrations: Keyboard calibration, in real time, one sample, average with last ‘n’ calibrations, PC calibration, in retrospect, multiple samples. The PC calibration is called ‘IntelCal’ because of its complexity and system effectiveness.

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