Safety And Preparation For Use - Stanford Research Systems SR810 Manual

SAFETY AND PREPARATION FOR USE

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 SR810 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 that the LINE
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.
LINE CORD
The SR810 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.
WARNING
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.
FURNISHED ACCESSORIES
- Power Cord
- Operating Manual
ENVIRONMENTAL CONDITIONS
OPERATING
Temperature: +10° C to +40° C
(Specifications apply over +18° C to +28° C)
Relative Humidity: <90% Non-condensing
NON-OPERATING
Temperature: -25° C to 65° C
Humidity: <95% Non-condensing
WARNING REGARDING USE WITH PHOTO-
MULTIPLIERS AND OTHER DETECTORS
The front end amplifier of this instrument is easily
damaged if a photomultiplier is used improperly
with the
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 SR810 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 SR810 input before turning the PMT on.
1-3
amplifier. When left completely