MSA PrimaX IR, Руководство по эксплуатации

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PrimaX® IR
30
Maintenance
GB
Although both windows are made of a highly durable material that is not easily scratched, avoid exces-
sive pressure when cleaning them. Clean, cotton tipped applicators are recommended to remove
material collected on the windows.
(3) Use a dry applicator or one moistened with distilled water to wipe the window and remove dust.
(4) Use an additional clean, dry applicator to remove any residual water.
(5) 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.
(6) Avoid using excessive amounts of water or alcohol in the cleaning procedure, and inspect the
window to ensure that the entire surface is clean.
When exiting the Cleaning Mode, the unit returns to normal operation. Note that residual cleaning fluids
may result in an elevated signal until completely dry.
(7) Inspect the environmental guard for any blockages, then replace the environmental guard on
sensor.
After cleaning the windows, it is advisable to check the sensor’s response to both zero and
calibration gas.
CAUTION!
Do not place foreign objects in the sensor's analytical region (except per the Cleaning Procedure
above); otherwise, the infrared beam can be partially blocked, causing the sensor to generate false
readings. All objects must be removed from the sensor's analytical region for it to function properly.
CAUTION!
If water or isopropyl alcohol is used to clean the sensor's windows, any residue from the cleaning
procedure must be completely dissipated before returning the unit to service. Checking the sensor's
response to zero gas is the best way to purge residual cleaning materials from the sensor. Ensure that
the sensor's reading is stable before zeroing or calibrating the sensor (see chapter 4).
5.5 Environmental Guard Cleaning
It is good maintenance practice to occasionally clean the environmental guard by removing it and
rinsing it with water, or using compressed air to clean it (see Fig. 21). Always reinstall the environ-
mental guard for normal operations to provide protection against damage to the mirror and windows,
and to help prevent dust from accumulating on the optical surfaces.
When the cleaning process is complete, be sure to remove all objects from the light path.