92
Lift the old filter material off the door screws
and discard.
Install the new, clean filter material carefully
over the screws as shown. The screws should
penetrate the filter material fully.
Install the filter frame. Install the #4-40 nuts
and tighten (hand-tight) as shown.
Gently close the instrument door.
Order new filter material from your Metrohm
authorized distributor immediately.