NIRS™ DA1650
User Manual 6008 1286 / Rev. 8 5:1
5 Maintenance
A NIRS DA1650 requires little maintenance. The instrument enclosure is sealed to
prevent contamination of critical modules, which keeps maintenance to a minimum.
DO NOT attempt to open the instrument enclosure. There are no user-serviceable
parts inside the instrument enclosure. Damage is not covered under warranty.
5.1 Cleaning the Instrument
Wipe the instrument cabinet with a moist cloth on a regular basis. Do not use any
chemicals to clean the instrument, except a diluted soap and water solution. Brush off
excess dust from the lamp cooling flange.
Use supplied brush with fine bristles to gently sweep all dust and sample from the
sample presentation glass. Do this regularly to avoid excessive dust build-up. Make
sure to remove any fingerprint from the sample presentation glass. Fat and protein
etc from fingerprints may affect the analysis results. If necessarry, add a small
amount of alcohol to a dry cloth and wipe off the sample presentation glass.
5.2 Cleaning the Touch Screen
During normal use, it may be necessary to clean the touch screen, for example if the
screen stops responding to touch or if the screen is too greasy. This can be done
without interrupting the routine operations of the instrument.
Procedure:
1. Go to the Care menu.
2. Press CLEAN SCREEN.
3. The screen will now make a 20 second countdown during which there is no
response to touch, and during that period it can be cleaned.
4. Use a damp cloth to clean the screen.
As soon as the 20 seconds are over, the screen picture will re-appear and you can
activate the "OK" button to return to the previous Care menu.
Note: Do not use any cleaning solution that contains abrasives,
strong acid or strong base.
5.3 Cleaning the Sample Cups
Sample cups can be cleaned using warm water and normal detergents. If a thorough
cleaning is required they can also be machine-washed or even auto-claved.
After cleaning, the cups should be dried completely using a towel or paper.
Between analyses, the sample cup can also just be cleaned using paper. However, in
the case of a very sticky sample, or if going from a very fat sample to a very lean
sample, a thorough cleaning with water and detergent is recommended to avoid any
possible carry-over of sample.
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