Land 4500 MKII Premier, Operation And Maintenance Manual

Page: 86 / 139

Model 4500 Premier Dust and Opacity Monitor
86
Installing a Grating
1
2
3
Span Filter
Key.
1. Span Filter Holder
2. Grating
3. M3 socket head screws
1. Undo the three M3 socket head screws (3) using a 2.5 mm socket key (Allen Key) and
remove the old grating.
2. Locate the new grating (see the Span Filter Gratings table in Appendix A).
3. Refit the new grating using the three M3 socket head screws.
4. Locate the Span Filter onto the instrument as described previously.