2. Thermo Fisher Scientific
  3. Xenon Lamp Replacement

Thermo Fisher Scientific Xenon Lamp Replacement User guide

  • Hello! I've reviewed the Xenon Lamp Replacement Guide for the Surveyor FL Plus Detector. This document provides detailed instructions on how to safely replace the xenon lamp, including necessary safety precautions, step-by-step removal and installation guides, and proper disposal methods. I'm ready to answer your questions about the xenon lamp replacement process.
  • When should I replace the xenon lamp?
    What safety precautions should I take when replacing the xenon lamp?
    What specific gloves does the manufacturer recommend?
1
This guide describes how to replace the xenon lamp light source of the Surveyor™ FL Plus
Detector.
As the lamp reaches the end of its lifespan, the light output decreases, resulting in decreased
sensitivity. You can track the sensitivity of the detector with the Maintenance for FL Plus
application program. Replace the lamp when it reaches the end of its lifespan, approximately 500
hours of use.
Before you install or replace the xenon lamp, view the training video provided with the
fluorescence detector.
Because the xenon lamp has the potential to explode, wear a face shield and gloves, in addition to
your standard safety glasses and laboratory coat, when you replace the xenon lamp.
The face shield must meet ANSI Z87.1, CSA Z93.3, or the equivalent.
Thermo Fisher Scientific recommends N-DEX™ PLUS 8005 gloves,
manufactured by Best Manufacturing Company. To order these gloves from
Thermo Fisher Scientific, use the following part numbers:
•P/N 00301-01-00005 (size small)
•P/N 00301-01-00006 (size large)
Store this additional personal protective equipment near the FL detector (see Figure 1).
Figure 1. View of storage cabinet located near the Surveyor Plus LC system
Xenon Lamp Replacement Guide
CAUTION Because the xenon gas inside the glass bulb is under extremely high
pressure, the xenon lamp can explode.
Temp
RunComm
Power
DegasRunCommPower Temp
RunComm
Power
Storage cabinet containing
face shield and gloves
FL detector
Autosampler
LC pump
2
To remove the xenon lamp housing from the detector housing
1. Turn off the power, and unplug the detector from line power.
2. Allow the lamp to cool for a minimum of two hours.
3. Loosen the retaining screw that secures the flow cell unit to the detector, and then pull the flow
cell unit forward to remove it from the detector. Place the flow cell unit on a lint-free cloth.
4. Using a #2 Phillips screwdriver, remove the five screws that secure the stainless steel plate to the
detector chassis (see Figure 2).
Figure 2. Location of the retaining screw that secures the flow cell and the five screws that secure
the stainless steel plate
Removing the Xenon Lamp Housing from the Detector
CAUTION For safety reasons, disconnect the power cord before removing the
stainless steel plate from the front panel of the FL detector.
CAUTION The xenon lamp generates enough heat to raise the temperature of
the surrounding metal surfaces to a dangerous level. Before you remove the
xenon lamp housing from the detector, allow the xenon lamp to cool for at
least two hours.
VERTICAL
FOCUS
HORIZONTAL
2
Screws
Retaining Screw
(that secures the
flow cell unit to
the detector)
Screws
Five screws that
secure the front
panel to the detector
Retaining screw
that secures the
flow cell unit to the
detector
Stainless steel plate
Front panel
3
5. Pull the plug of the xenon lamp housing out of the receptacle in the detector, and remove the
thumbscrew from the grip of the xenon lamp housing (see Figure 3).
Figure 3. Connections between the xenon lamp housing and the detector chassis
Receptacle
Thumbscrew Grip
Plug
4
6. Lift the xenon lamp housing by its grip, and then using two hands, carefully pull the xenon
lamp housing out of the detector chassis (see Figure 4).
Figure 4. View of the xenon lamp housing
+
CONNECTION DIAGRAM
Anode terminal
Anode nut
Cathode terminal
Anode terminal cable
Cathode nut
Wire
Light bulb
(with the protrusion
facing towards
the front of the
Xe lamp housing)
FRONT
Cathode plate
Grip
5
To remove the xenon lamp from the xenon lamp housing
1. Place the xenon lamp housing on its side.
2. Holding the metal fixture at the top of the xenon lamp, unscrew the anode nut, and then slide
the anode terminal of the lamp backward out of the ceramic plate (see Figure 5).
Figure 5. Unscrewing the anode nut from the anode terminal
Removing the Xenon Lamp from the Xenon Lamp Housing
IMPORTANT Do not touch the mirror inside the xenon lamp housing. If you accidentally
touch the mirror, clean it with a lint-free cloth soaked in high-grade isopropyl alcohol.
6
3. Holding the metal fixture at the bottom of the xenon lamp, unscrew the cathode nut, and then
pull the cathode terminal out of the cathode lead plate (see Figure 6).
Figure 6. Unscrewing the cathode nut from the cathode terminal
To connect the xenon lamp to the xenon lamp housing
1. Place the xenon lamp housing on its side.
2. Remove the xenon lamp from its packaging.
3. Remove the nuts from the ends of the lamp.
4. Secure the xenon lamp to the xenon lamp housing as follows (see Figure 7):
a. Holding the metal fixture at the bottom of the lamp, insert the cathode terminal into the
hole in the cathode lead plate, and then screw one of the nuts onto the cathode terminal.
b. Holding the metal fixture at the top of the lamp, insert the anode terminal into the hole in
the ceramic plate, and then screw the other nut onto the anode terminal.
Installing the Xenon Lamp
IMPORTANT Dust and fingerprints on the glass bulb reduce the light output of the
xenon lamp. If necessary, clean the glass bulb with a lint-free cloth soaked in high-grade
isopropyl alcohol.
7
Figure 7. Connecting the xenon lamp to the xenon lamp housing
5. Ensure that the protrusion on the light bulb faces towards the front of the xenon lamp housing
and that the metal wire is next to the protrusion (see Figure 7).
To reinstall the xenon lamp housing and the flow cell unit
1. Slide the xenon lamp housing into the chassis (see Figure 3).
2. Insert the xenon lamp housing plug into the receptacle in the detector chassis.
3. Insert the thumbscrew through the hole in the grip of the xenon lamp housing, and then hand
tighten the thumbscrew to secure the lamp housing to the chassis.
4. Using the five screws you removed in step 4 on page 2, secure the stainless steel plate to the
front panel of the detector.
5. Reinstall the flow cell unit and tighten its retaining screw.
After you connect the FL detector to line power, refer to the Surveyor FL Plus Detector Hardware
Manual for instructions on aligning the xenon lamp.
CAUTION Take care to install the xenon lamp in the correct orientation. If
you reverse the polarity of the terminals, turning on the power to the
detector does not trigger the lamp and can damage the lamp cathode.
Reinstalling the Xenon Lamp Housing and the Flow Cell Unit
Cathode nut
and lead plate
Anode
terminal
Anode nut
Cathode
terminal
Anode terminal
cable
8
To dispose of the used xenon lamp
1. Wearing a face shield and gloves, completely wrap the xenon lamp in a heavy duty towel, such
that no portion of the lamp is exposed (see Figure 8).
2. To burst its glass bulb, hit the wrapped xenon lamp with a hammer or an equivalent heavy
object.
3. Dispose of the broken glass in an appropriate waste container.
Figure 8. Disposing of the xenon lamp
After you complete the xenon lamp replacement procedure, return the face shield to the
appropriate storage location and return this booklet to the pocket in the left door of the detector.
Disposing of the Xenon Lamp
1. Wrap the xenon lamp in a heavy duty towel.
2. Hit the wrapped xenon lamp with a hammer. 3. Dispose of the broken glass in an appropriate
waste container.
+
Revision B 60153-97001
Copyright© 2008 Thermo Fisher Scientific.
All rights reserved. Printed in the United States of America.
N-DEX is a registered trademark of Best Manufacturing
Company in the United States and possible other countries.
Surveyor is a registered trademark of Thermo Fisher Scientific
in the United States.
/