Ultima XIR Cleaning Procedure
The presence of particulate matter, oil films, liquid water, or the residue
from water drops on the two monitor windows can adversely affect its
performance. The environmental guard is designed to prevent foreign
solids or liquids from reaching the monitor's optical system. Additionally,
heating elements are incorporated into the unit to prevent water
condensation. Under severe conditions, however, some material may
collect on these surfaces and it may be necessary to occasionally check
and clean the windows.
1. Remove the environmental or flow cap.
2. Place an opaque object (piece of paper, end of wrench handle,
etc.) between the light source window and the mirror to completely
obscure the light path for two to three seconds.
• The Ultima XIR/Ultima XI Monitor enters the Cleaning Mode
for two minutes.
NOTE: While in the Cleaning Mode, the sensor will not
respond to the presence of gas.
• The analog current output is 3.0 mA during this time.
• The display indicates 'low signal'’.
3. While both windows are made of a highly durable material that is
not easily scratched, avoid excessive pressure when cleaning
them. Clean, cotton-tipped applicators are the most convenient tool
to remove material collected on the windows.
• Use a dry applicator or one moistened with distilled water to
wipe the window and remove dust.
• Use an additional clean, dry applicator to remove any residual
water.
• Use an applicator moistened with isopropyl alcohol to remove
heavy deposits of solids, liquids or oil films. Clean the window
again with a second applicator moistened with distilled water;
then, dry the window with a final applicator.
• Avoid using excessive amounts of water or alcohol in the
cleaning procedure, and inspect the window to ensure that the
entire surface is clean.
• The unit remains in the Cleaning Mode for a minimum of
two minutes. If active cleaning is still in progress at the end
of this period, the sensor detects the motion of this object
in its light path and automatically extends the Cleaning
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