LI-COR LI-6400, Руководство пользователя

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Maintenance & Service
Leaf Chambers
Using the LI-6400 19-21
becomes torn or punctured, or excessively dirty. Replacement film (LI-COR
part #250-01885) and double-sided tape (part #212-04341) can be found in
the spare parts kit.
■ ■ ■ ■
To replace the Propafilm:
1 Detach the affected chamber part
Use the 3/32Ó hex key provided in the spare parts kit to remove the two long
screws.
2 Remove the old Propafilm and tape
The tape has a fairly strong adhesive; if it does not peel off readily, use a mild
solvent (e.g. acetone) to help dissolve the adhesive. Do not use a blade or oth-
er sharp instrument to remove the tape, as you could damage the surface of
the chamber, thereby making it difficult to achieve a tight air seal with the
new Propafilm.
3 Prepare the new tape
Cut a strip of the double-sided tape that is slightly longer than the leaf cham-
ber. Lay on a flat cutting surface, adhesive side up. The tape may be curled
slightly; hold the corners down with cellophane tape, if necessary.
4 Attach the tape and trim
Lower the top surface of the chamber onto the tape and press firmly. Trim the
tape around the outer and inner edges of the chamber (Figure 19-17). To get
a clean cut, use a fresh blade (an Exacto knife works well) and make your first
cut as close to the edge as possible.
Figure 19-17. Trim tape at leaf chamber edges
PAR sensor
connector
Trim here
After trimming, tape
remains in shaded area
Top View