5 fuse locations – LumaSense Technologies M390S User Manual
Page 23
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M390S Manual
Maintenance 23
Refer to the Appendix for an exploded view of the cavity assembly.
5.5 Fuse Locations
The M390 has several fuses. Refer to the table below. See the appendix for photo-view of fuse
locations.
Fuse Nµmber Amps/volts
Location
Description
F1 & F4
3.15A / 250 VAC
External Rear Panel Fans
F2 & F5
1A / 250 VAC
External Rear Panel Temp. Controller
F3 & F6
2A / 250 VAC
External Rear Panel SCR Control
F7
125A / 250 VAC
In SCR on floor of
blackbody
SCR Main Fuse
Electrodes
Quartz tube with graphite
foil and felt around cavity
Slide this electrode out to
repair/replace cavity.
Electrode tension
adjustment
M668 Optics
Fr
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R
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