Rectifying The Problem: Red Indicators - Teledyne 6650B Operating Instructions Manual

Setup & Operation
f) Dampen a cotton swab or lint free cloth with the
rinse solvent and gently rub the optical surface.
g) Air-dry the probe for a few minutes.
h) Reinsert into the process and follow the required
initialization sequence (see above)
4) If Step 1-3 are not sufficient to return the Fluorometer to
operation, contact TIA for assistance.
5.8.3

Rectifying the Problem: Red Indicators

If there has been a major change in the probe installation or process
piping. Most likely, there is a stray light leak into the system. Verify
that the monitoring location is in complete darkness. If stray light is not
present at the monitoring location, contact TIA for assistance.
Teledyne Analytical Instruments
24
Model 6650