Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual page 280

Chapter 14
Maintaining a Flame Photometric Detector
6. Loosen the knurled nut that fixes the
photomultiplier tube and remove it from the
detector body.
CAUTION The photomultiplier tube could
damage if exposed to ambient
light with the excitation voltage
On
supply has been switched off
before disconnecting the tube
from the detector body.
7. Remove the interferential filter from its
housing, handling it very gently. Keep it using a
clean paper towel.
CAUTION Filters are fragile. Pay attention
not to let the filter fall down and
damage.
8. Using a clean paper towel, clean the filter on
both faces.
CAUTION Avoid touching the filter with
your fingers. If you see
fingertips on the filter, clean it
using GC-grade methanol and
air dry before remounting.
280
. Make sure the GC power
Clean the Interferential Filter
Maintenance and Troubleshooting Manual