Getting Started
370B User Manual 1-5
This instrument operates from a single phase power source,and has a
detachable three–wire power cord with a two–pole, three–terminal grounding
type plug. The voltage to ground (earth) from either pole of the power source
must not exceed the maximum rated operating voltage (250 volts rms).
before making connection to the power source, make sure that the instrument is
set for the power source voltage, and is equipped with a suitable plug(two–pole,
three–terminal,grounding type).
This instrument is safety class 1 equipment (IEC* designation). All accessible
conductive parts are directly connected through the grounding conductor of the
power cord to the grounding contact of the power plug. Therefore, the power
plug must only be inserted in a mating receptacle with a grounding contact. Do
not defeat the grounding connection. Any interruption of the grounding
connection can create an electric shock hazard.
For electric shock protection,connect the instrument to ground before connecting
to the instrument input or output terminals.
*International Electrotechnical Commission.
The 370B can be operated where the ambient air temperature is between +10
C
and +40
C. After storage at temperatures outside the operating limits, allow the
chassis temperature to reach the safe operating limits before applying power. The
370B is cooled by air drawn in through the air filter on the rear panel and blown
out through holes in the side panels. For proper instrument cooling, provide
adequate clearance on the rear and sides of the instrument to ensure free air flow
and dissipation of heat away from the instrument.
Following use of the 370B at high power settings, the device,
fixture,or protective cover may be hot enough to cause injury. Avoid touching any
of these items until cooled.
Operating Temperature
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