ASP sterrad NX, Service & Troubleshooting Manual

Page: 104 / 126

6
Maintenance
Hydrogen Peroxide Detector Lamp
WARNING! ULTRAVIOLET LIGHT EXPOSURE!
ULTRAVIOLET LIGHT CAN HARM UNPROTECTED EYES
AND SKIN. DO NOT LOOK DIRECTLY AT AN ENERGIZED
UV LAMP.
HOT SURFACES! THE ULTRAVIOLET LAMP AND ITS
HOUSING ARE HOT WHEN ENERGIZED. CONTACT WITH
THESE PARTS MAY CAUSE BURNS OR OTHER INJURIES.
DO NOT TOUCH THE MONITOR LAMP ASSEMBLY WHEN
IT IS ENERGIZED.
CAUTION: Safe parts handling. Do not touch the surface of the
ultraviolet lamp or the optical window with your bare hands. Oil
and contaminants from your skin will damage these parts and
cause premature failure.
4
Note: This procedure is for replacing the entire housing.
Please see the removal and replacement section
for procedures to just replace the lamp.
1. Turn off the lamp.
2. Remove the front top panel and the top panel.
3. Unplug cable P20.
4. Use soft-jaw pliers to unscrew the collar to the Ultratorr fitting.
5. Lift the lamp housing up to remove.
6. Remove the spacer and the O-ring from inside the Ultratorr fitting.
7. Insert a 1 mm hex wrench through the hole in the top of the lamp
housing to loosen the lamp retaining screw.
8. Gently pull the UV lamp and socket assembly out of the lamp
housing.
9. Unscrew the base of the lamp housing and remove the O-ring and the
optical window.
To install the new lamp, do the following:
CAUTION: Safe parts handling. Do not touch the surface of the
ultraviolet lamp or the optical window with your bare hands. Oil
and contaminants from your skin will damage these parts and
cause premature failure.
1. Install a new ultraviolet lamp in the lamp housing.
104 STERRAD
®
NX
™
Service Guide