| ZERO the measuring chamber. Move the Control Valve to the FILL
position. Using the Rinse Valve add water to the measuring chamber.
Add enough water that the level is above the ZERO LINE. Now using the Control
Valve, remove the excess water by pulling the Control Valve
handle towards you. Do not move the Control Valve all the way to
EMPTY. The further you pull the handle, the faster water is removed. Pulling
very slightly on the handle will remove water very slowly, allowing you
to very accurately adjust the water level to the ZERO LINE. |
