Agilent Technologies 8453 Operator's Manual page 211

Figure 19
Source lens
4 Use a canister of compressed oil-free air (like those used to clean
5 To replace the Deuterium lamp, see "Exchanging the Deuterium or Tungsten
6 Reconnect line power and turn on the instrument. Check that the
1 Turn off the spectrophotometer and disconnect the power cord.
2 Remove any cuvette holder from the sample compartment.
3 To have better access you may want to take the plastic and metal front covers
4 Dampen a lint-free, surgical cotton swab with reagent grade isopropanol
Maintenance and Repair
Cleaning the Lenses
Cleaning the Source Lens from the Lamp Side
photographic lenses) to further clean the source lens. If you do not have a
compressed air canister, you can use a photographic lens cleaning brush.
Lamp" on page 96.
spectrophotometer passes its self-test, this means that the green light on the
front panel comes on and that you can do a blank measurement from your
software.
Cleaning the Spectrograph Lens
off, see "Removing and Replacing Covers" on page 109.
(isopropyl alcohol) and gently swab the surface of the spectrograph lens.
Repeat several times with clean swabs and alcohol each time.
105