1. Figure 4 UV Curing Unit 350 User Guide
  2. Installation
  3. Install the UV Lamps

Install the UV Lamps

HOT SURFACE HAZARD: LAMPS CAN CAUSE BURN INJURY IF REMOVED WHILE STILL HOT.

CAUTION: WEAR A DUST MASK, NITRILE GLOVES AND SAFETY GLASSES WHEN CHANGING LAMPS. A BROKEN LAMP MAY RESULT IN EXPOSURE TO PHOSPHOR POWDER DUST AND TO ELEMENTAL MERCURY VAPOR. THE PHOSPHOR CONTAINS THALLIUM, WHICH CAN BE ABSORBED THROUGH THE SKIN OR INHALED.

CAUTION: Usage of lamps other than those recommended by 3D Systems, the type of lamps that came with the curing unit, will void the IEC 62417 classification of "Exempt Risk Group." 

 

UV lamps must be installed in a specific orientation in the UV Curing Unit 350. The unit uses eight 370 nm UV Lamps (model - TL-K 40W/10R) and eight 420 nm UV Lamps (model - FR20T12/03HO).

370-nm-lamp-10162019.jpg

420-nm-lamp-10162019.jpg

 

Use the following diagram to assist in your installation:

bulbs-installed-orientation.jpg

  1. The UV lamps are located in the accessories box you removed in the previous procedure. It is best to leave each one in its packaging until you are installing it.
 bulbs-in-box.jpg
  1. Ensure the machine is powered down and unplugged. Open the lid.
 lid-open.jpg
  1. Ensure that both the catch tray (1) and the shelving unit (2) are removed from the machine, as they would be in the way and could break your lamps. Please see the section Broken Fluorescent Lamps for more information.
 remove-shelves-and-catch-tray.jpgcatch-tray.jpg
  1. For each lamp: line up the bottom of the lamp inside the bottom fixture in the orientation shown. Also ensure that you are installing the lamp with the reflecting side facing the outside of the machine and the translucent side facing the inside of the machine.

translucent-side-faces-printed-parts-in-chamber.jpg

install-uv-lamp-bottom.gif
Looking at floor of machine
  1. Push down lightly on the top of the UV lamp until it can fit under the top fixture, and snap it into place.
  2. Repeat this process for each lamp in the machine, ensuring you follow the installation pattern at the beginning of this section.
 install-uv-lamp.gif
  1. Remove the Power Cable from the packaging. A local power cord is dropped into the package just before shipping; so the cord will have been loose in the crate. Follow the instructions in the section Power on UV Curing Unit 350 to plug in the machine and turn it on.
  1. Press the reset button on the Lamp-Time Indicator to ensure that it is set to 0 (it should already be set at zero by 3D Systems). Do not forget this step, as the light hours will guide you in when to perform your first lamp replacement.
 light-hours-reset.gif

Your UV Curing Unit 350 is now set up and ready to use!