Maintenance
July 22, 2019 | 287960-ENG | R00 47
To replace a fluorescent tube:
1. Identify the tube(s) to be replaced.
2. Turn the power to the chamber OFF. Refer to Section 6.1 Disconnect the Power
Before Maintaining or Servicing the Chamber on page 46 for instructions to turn off
the power.
3. Unlock the tube by rotating it one quarter turn and then carefully remove it from its
receptacle.
4. Install the new tube by inserting it fully into the correctly oriented lamp holders.
5. Secure the tube in place by rotating it one quarter turn.
6. Dispose of the used tube(s) following local requirements, or contact the local
authorities for proper disposal procedures.
To replace an LED tube:
1. Identify the tube(s) to be replaced.
2. Turn the power to the chamber OFF. Refer to Section 6.1 Disconnect the Power
Before Maintaining or Servicing the Chamber on page 46 for instructions to turn off
the power.
3. Unlock the tube by rotating it one quarter turn, and then carefully remove it from its
receptacle.
4. Install the new tube. Orient the positive end of the tube as described on the label on
the canopy (Figure 6-1).
Figure 6-1 LED Tube Orientation
The LED bulbs and the fluorescent bulbs are physically similar with the same
sockets. Read the lamp identification label on the canopy and ensure the correct
replacement lamp type is being installed. Mixing of LED and fluorescent lamps in a
fixture which is designed for LED only or fluorescent only will result in reduced light
output and may result in damage to the lamps and/or lamp canopy.
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