Fully Automatic Loss on Ignition Tester VLOI-FA

See it explained: the mass loss curve, why the run ends on burn rate rather than a timer, and holding LOI on a control chart, on our Loss on Ignition feature page.

The Versatile VLOI-FA runs moisture, volatile matter and loss on ignition as one sequence on a single sample. It weighs, holds at each temperature in turn, and moves on when the rate of weight change settles, so the run follows the sample rather than a fixed timer. Setpoints are adjustable to suit the standard in use.

Application

Loss on ignition measures what burns away from a sand sample. In green sand it tracks the carbon carriers such as sea coal, along with the residue that builds up in a running system. In resin coated and chemically bonded sand it indicates how much binder sits on the grain. Both readings feed decisions that show up in the casting: gas defects and veining when the figure runs high, weak bonding and poor surface when it runs low. The test also applies to bentonite and pre-blends.

Supplied with: the main unit with integrated furnace and balance, three refractory crucibles and tongs. A Class F1 or E2 calibration weight set and a temperature verification kit are recommended alongside, and the unit needs adequate ventilation with an exhaust.