Maintenance 4
Monitor UV-900 User Manual 18-1120-05 Edition AF
26
4.3 Checking the instrument
4.3.1 Lamp intensity
1 Select menu
Check
, press
OK
.
2 Select menu
Check Lamp Intensity
.
If the lamp intensity is < 20%, contact GE Healthcare for lamp replacement or
change of internal optical fiber.
4.3.2 Lamp on–time
1 Select menu
Check
, press
OK
.
2 Select menu
Check Lamp Run Time
.
If the lamp ontime is > 4000 hours, contact GE Healthcare for lamp
replacement.
4.3.3 Flip time
The flip time is the time the monochromator stepper motor has been in
operation.
1 Select menu
Check
, press
OK
.
2 Select menu
Check Flip Time
.
If the flip time is > 2000 hours, contact GE Healthcare for maintenance.
4.3.4 UV flow cell
This menu shows the set path length and the serial number of the UV flow cell.
1 Select menu
Check
and press
OK
.
2 Select menu
UV Flow Cell
.
Check Lamp Intensity
210nm 85% 300nm 95%
Check Lamp Run Time
200h
Check Flip Time
50h
UV Flow Cell
(--,--mm, SN -----)