Opacity Measuring Chamber 4000 AVL 4000
7-10 Service Manual
7.5 Assembling the Opacity Measuring Chamber
• Insert all the units (detector, transmitter, fan…) completely into one shell half, not
forgetting the seal.
• Screw in the screws on one side first, then on the other. Tighten the screws on the first
side.
Tighten the screws gently so as not to damage the shell.
Always carry out a full function test after any maintenance
work involving dismantling of the measuring chamber.