Stanford Research Systems SR865A Operation Manual page 4

ii Safety and Preparation For Use
must not be regarded as a substitute for proper grounding and careful system design.
GFCI's must also be tested regularly to verify their functionality. Always consult an
electrician when in doubt.
Service
Do not attempt to service 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 Regarding Use With Photomultipliers and Other
Detectors
The front end amplifier of this instrument is easily damaged if a photomultiplier is used
improperly with the amplifier. When left 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 SR865A the stored charge may damage the front-end
amplifier. To avoid this problem, always discharge the cable and connect the PMT output
to the SR865A input before turning the PMT on.
Furnished Accessories
• Power Cord
• Operating Manual
Environmental Conditions
Operating
Temperature:
Relative Humidity:
Non-Operating
Temperature:
Humidity:
SR865A DSP Lock-in Amplifier
+10 °C to +40 °C
(Specifications apply over +18 °C to +28 °C)
<90 % Non-condensing
−25°C to 65°C
<95 % Non-condensing