Safety And Preparation For Use - Stanford Research Systems SR830 Manual

Dangerous voltages, capable of causing injury or death, are present in this instrument.
Use extreme caution whenever the instrument covers are removed. Do not remove the
covers while the unit is plugged into a live outlet.
CAUTION
This instrument may be damaged if operated
with the LINE VOLTAGE SELECTOR set
for the wrong AC line voltage or if the wrong
fuse is installed.
LINE VOLTAGE SELECTION
The SR830 operates from a 100V, 120V,
220V, or 240V nominal AC power source
having a line frequency of 50 or 60 Hz.
Before connecting the power cord to a
power source, verify
VOLTAGE SELECTOR card, located in the
rear panel fuse holder, is set so that the
correct AC input voltage value is visible.
Conversion to other AC input voltages
requires a change in the fuse holder voltage
card position and fuse value. Disconnect the
power cord, open the fuse holder cover door
and rotate the fuse-pull lever to remove the
fuse. Remove the small printed circuit board
and select the operating voltage by orienting
the printed circuit board so that the desired
voltage is visible when pushed firmly into its
slot. Rotate the fuse-pull lever back into its
normal position and insert the correct fuse
into the fuse holder.
LINE FUSE
Verify that the correct line fuse is installed
before connecting the line cord. For
100V/120V, use a 1 Amp fuse and for
220V/240V, use a 1/2 Amp fuse.

SAFETY AND PREPARATION FOR USE

that the LINE
WARNING
LINE CORD
The SR830 has a detachable, three-wire power
cord for connection to the power source and to
a protective 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
Do not attempt to service or adjust this
instrument unless another person, capable of
providing first aid or resuscitation, is present.
Do not install substitute parts or perform any
unauthorized modifications to this instrument.
Contact the factory for instructions on how to
return the instrument for authorized service and
adjustment.
WARNING REGARDIG USE WITH
PHOTOMULTIPLIERS AND OTHER
DETECTORS
The front end amplifier of this instrument is
easily damaged if a photomultiplier is used
improperly with
completely unterminated, a cable connected to
a PMT can charge to several hundred volts in a
relatively short time. If this cable is connected to
the inputs of the SR830 the stored charge may
damage the front-end op amps. To avoid this
problem, always discharge the cable and
connect the PMT output to the SR830 input
before turning the PMT on.
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the amplifier. When left