7 Maintenance and repairs
77
NIRFlex N-500
Operation Manual, Version G
7 .7
Main fuse replacement
The primary fuses are located at the rear of the instrument next to the power supply socket. They are
accessible from the outside.
To replace the primary fuses, proceed as follows:
• Unplug the power cord!
• Remove the defective fuses from the holder and replace them
with new fuses of the same rating (T 10 A, L 250 V).
• Reconnect the power supply connector and switch on the
instrument.
Replacing the primary fuses
7 .7 .1
Measuring cell fuse replacement
Each measuring cell is provided with two fuses located at the bottom. To replace them, proceed as
follows:
• Remove all add-ons, petri dishes, vials, etc.
from the measuring cell.
• Remove the measuring cell from the instru-
ment.
• Turn the cell, in a way that you see the
bottom side. The two black fuse holders are
located as indicated by the arrow on the
picture to the left.
• Replace the 2.0 AT fuses with two new ones.
Location of the fuses at the bottom of the measuring cell
