© 2015 Thorlabs
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LDC200C Series
4 Maintenance and Service
Protect the LDC200C Series from adverse weather conditions. The LDC200C Series is not
water resistant.
Attention
To avoid damage to the instrument, do not expose it to spray, liquids or solvents!
The unit does not need a regular maintenance by the user. If necessary the unit and the display
can be cleaned with a cloth dampened with water. A mild 75% Isopropyl Alcohol solution can
be used for more efficient cleaning.
LDC200C Series Controllers do not contain any modules and/or components that could be
repaired by the user himself. If a malfunction occurs, please contact
for return
instructions.
Do not remove covers!
To guarantee the specifications given in section
over a long period it is
recommended to have the unit factory calibrated every two years.
4.1 Line Voltage Setting
The laser diode controller LDC2xxC operates at fixed line voltages of
100 V +15% / -10% ( 90 V … 115 V)
115 V +15% / -10% (104 V … 132 V)
230 V +15% / -10% (207 V … 264 V)
line frequency 50 … 60 Hz.
The line voltage setting can be changed from the rear without opening the unit.
1. Turn off the controller and disconnect the mains cable.
2. The fuse holder (R10) is located below the 3-pole power
connector of the mains jack (R9). Release the fuse holder
by pressing its plastic retainers with the aid of a small
screwdriver. The retainers are located on the right and left
side of the holder and must be pressed towards the center.
3. Unplug the white line voltage switch/indicator (R8,
containing the left fuse) from the fuse holder (R10), rotate it
until the appropriate voltage marking (100V, 115V, or
230V) is on target for the cutout (R12) of the fuse holder,
and plug it back into the fuse holder. Press in the fuse
holder until locked on both sides. The appropriate line
voltage marking must be visible in the cutout (R12) of the fuse holder.
Attention
If you have changed to or from 230 V, also change the mains fuses to the correct value given in
section
.
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