MAINTENANCE FOR AREARAE
6-8
6.4 Taking Care of the Lamp
During the course of regular operation, the UV lamp will
become contaminated. Therefore, the lamp requires periodic
cleaning. The “Lamp” error is an indication of a problem with
the lamp current. A dirty or contaminated sensor often causes
high readings of the VOC sensor. A weak or inoperative lamp
often causes low readings or no response to test gas. If the UV
lamp is on while the error message persists, then it is
necessary to adjust the lamp threshold. Please refer to Chapter
8 for details of adjusting the threshold level for the UV lamp.
CAUTION!
Never touch the window surface with fingers or anything which
may leave a film. Water degrades window surfaces, especially
the 11.7 eV lamp window.
“LAMP”
Bump Test (Raw Count)
Check Threshold
Refer to Chapter 8
Cold Lamp Check
Refer to Appendix A
failed
PASS & “LAMP”
still on LCD