SS1000 Operator’s Manual
A– 01-92-4 A .ver 97020-000944
• Marker
• Flashlight
To clean the mirrors:
1. Power down the analyzer following the procedure outlined in “To
power down the analyzer” on page 3-2.
2. Close the pressure regulator at the field-pressure reducing station
(adjustment knob turned fully counter-clockwise).
3. Close the sample probe isolation valve.
4. Close the low-pressure flare or atmospheric vent header shut-off
valve.
5. Disconnect the analyzer from the sample supply and return lines.
6. If possible, purge the system with nitrogen for 10 minutes.
7. Carefu
lly mark the orientat
ion of the mirror assembly on the cell
body.
8. Gently remove the mirror assembly from the cell by removing the 6
socket-head cap screws and set on a clean, stable and flat surface.
9. Look inside the sample cell at the top mirror using a flashlight to
ensure that there is no contamination on the top mirror.
10. Remove dust and other large particles of debris using a bulb blower
or dry compressed air/nitrogen. Pressurized gas duster products are
not recommended as the propellent may deposit liquid droplets onto
the optic
surface.
11. Put on clean acetone-impenetrable gloves.
12. Double fold a clean sheet of lens cleaning cloth and clamp near and
along the fold with the hemostats or fingers to form a “brush.”
13. Place a few drops of isopropanol onto the mirror and rotate the
mirror to spread the liquid evenly across the mirror surface.
Careful marking of the mirror orientation is critical to restoring
system performance upon reassembly after cleaning.
Due to its proximity to the optical head, SpectraSensors does not
reco
mmend cleaning the top mirror. If the top mirror is visibly
contaminated, contact your factory service representative.
UK Distibution by IMA Ltd Tel: +44 (0)1943 878877 Email: info@ima.co.uk Web: www.ima.co.uk
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