General Information
Safety and Preparation for Use
Dangerous voltages, capable of causing injury or death, are
WARNING
present in this instrument. Do not remove the product covers
or panels. Do not apply power or operate the product without
all covers and panels in place.
AC line voltage
The LDC500 Series Laser Diode Controllers operate from a 100 V,
120 V, 220 V, or 240 V nominal AC power source having a line fre-
quency of 50 Hz or 60 Hz. Before connecting the power cord to a
power source, verify that the LINE VOLTAGE SELECTOR, located
in the rear panel power-entry module, is set so that the correct AC
line voltage value is visible.
The LDC500 Series Laser Diode Controllers will be damaged if oper-
CAUTION
ated with the LINE VOLTAGE SELECTOR set for the wrong AC line
voltage, or if the wrong fuses are installed. Verify that the correct
line fuses are installed before connecting the line cord. Fuse size is
5MF “fast blow” (
5
×
20 mm). For 100 V
/
120 V, use 4 A fuses; for
220 V
/
240 V, use 2 A fuses.
Line cord
The LDC500 Series Laser Diode Controllers have a detachable, three-
wire power cord for connection to the power source and to a protec-
tive ground. The exposed metal parts of the instrument are connected
to the outlet ground to protect against electrical shock. Always use
an outlet which has a properly connected protective ground.
Service
The LDC500 Series Laser Diode Controllers do not have any user
serviceable parts inside. Refer service to a qualified technician.
Do not install substitute parts or perform any unauthorized modi-
fications to this instrument. Contact the factory for instructions on
how to return the instrument for authorized service and adjustment.
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