The anti-draft chamber is an optional accessory intended for XA 4Y and XA 5Y balances working in unfavourable conditions (air-drafts). It is mounted on a table, inside the balance is placed. The chamber features sliding side panes allowing free access to the weighing chamber of the balance.
The anti-draft chamber is to be used in a set with a granite anti-vibration table exclusively. It cannot be used with the anti-vibration table intended for laboratory balances.