Spectrasensors SS2000 - Cleaning the Mirrors

Troubleshooting
A–2 H
2
S in Natural Gas
5. Reconnect the gas sampling line to the inlet port of the analyzer and
check for leaks.
Cleaning the Mirrors
If contamination makes its way into the cell and accumulates on the internal
optics, a Laser Power too Low fault will result. If mirror contamination is
suspected, please consult with your factory sales representative before
attempting to clean the mirrors. If advised to do so, use the following
procedure.
Tools and Supplies:
• Lens cleaning tissue containing low ash content and no chemical
additives (KODAK
®
1546027 Lens Cleaning Paper or equivalent)
• Reagent-grade acetone (ColeParmer
®
EW-89000-04 or equivalent) in
a small drop dispenser bottle (Nalgene
®
2414 FEP Drop Dispenser
Bottle or equivalent)
• Acetone-impenetrable gloves (North NOR CE412W Nitrile Chemsoft™
CE Cleanroom Gloves or equivalent)
• Hemostat (Fisherbrand™ 13-812-24 Rochester-Pean Serrated
Forceps)
• Bulb blower or dry compressed air/nitrogen
• Pencil
To clean the mirrors:
1. Carefully mark the orientation of the mirror assembly on the cell
body.
2. Gently remove the mirror assembly from the cell and set on a clean,
stable and flat surface.
The sample cell assembly contains a low-power, 10 mW MAX, CW
Class 3IIIb invisible laser with a wavelength between 800-
3000 nm. Never open the sample cell flanges or the optical
assembly unless the power is turned off.
Always handle the optical assembly by the edge of the mount.
Never touch the coated surfaces of the mirror.