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Operating Environment/Cooling
ACCESSORIES AVAILABLE
Figure 6 lists the accessories available for the HP 3326A. These accessories may be
obtained through your HP Sales and Service Office.
Accessory
Ground Isolator
Power Splitter
50 n Feed
Thru Termination
Transit Case
Service Accessory Kit
HP Part Number
15507A
11652-60009
110480
9211-2656
03376-84401
Figure 6. Accessories Avaiiabie
OPERATIIMG EIMVIROIMMENT
Figure 7 summarizes the HP 3326A operating environment ranges. In order for the
HP 3326A to meet specifications, the operating environment must be within these limits.
WARNING
The HP 3326A is not designed for outdoor use. To
prevent potential fire or shock hazard, do not ex
pose the HP 3326A to rain or other excessive
moisture.
Temperature
The HP 3326A may be operated in temperatures from 0° 0 to 55° 0.
Humidity
The HP 3326A may be operated in environments with humidity up to 95% (0° 0 to -i-40° 0).
However, the HP 3326A should be protected from temperatures or temperature changes which
cause condensation within the instrument.
Aititude
The HP 3326A may be operated at altitudes up to 4572 meters (15,000 feet).
Figure 7. Operating Environment
IIMSTRUMENT COOLING
The HP 3326A is equipped with a cooling fan mounted on the rear panel. The HP 3326A
should be mounted so that air can freely circulate through it. When operating the
HP 3326A, choose a location that provides at least 75 mm (3 inches) of clearance at
the rear, and at least 25 mm (1 inch) of clearance at each side. Failure to provide ade
quate air clearance will result in excessive internal temperature, reducing instrument
reliabil ity. The filter for the cooling fan can be removed for cleaning. The filter is re
moved by disconnecting the power cord and removing the four knurled nuts (HP part
number 0535-0013). The filter (HP part number 3150-0218) should be removed and
cleaned by flushing with soapy water every thirty days.
INSTALLATION - 5
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