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Free-Space Plasma Light Source
Maintenance
Chapter 6
6.1.
Fuse Replacement
The fuse is located in the fuse drawer below the power inlet. To replace the fuse, press the two clips on the
drawer and pull it out, as shown in Figure 11.
Take out the used fuse and put in the new one. Please use 5 A, 250 VAC, Type "T", slow blow fuse only.
6.2.
Bulb Module Replacement
The surface temperature of the bulb module may reach over 75 °C during operation. Always wait at
least 10 minutes after turning off the light source for cool down before performing a bulb module
replacement. When performing a bulb module replacement, wearing protective gloves is highly
The bulb module used in HPLS300 series light sources has a typical lifetime of 6000 hours. After reaching its
lifetime the bulb module will need to be replaced.
NOTE: 6000 hours is the typical time period for the maximum output light intensity of the bulb module to decrease
to 50% of the initial value. It is not an absolute measurement of bulb lifetime. The actual lifetime of each bulb
module may vary from unit to unit. Thorlabs provides a one year warranty on the bulb modules.
Rev C, June 12, 2019
Fuse Location of a HPSL300 Series Light Source
Always power off the unit before opening the housing.
recommended.
WARNING
WARNING
Chapter 6: Maintenance
Page 13
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