HP 37717C, Calibration Manual, Page: 91 / 399

2-2
Installation
Operating Environment
Operating Environment
This instrument is designed for Indoor use only.
DO NOT operate the product in an explosive atmosphere or in the
presence of flammable gasses or fumes.
This instrument may be operated in environments within the following
limits:
Temperature: 0
o
C to +45
o
C
+5
o
C to +35
o
C with lid printer
Altitude up to 3050m (10,000ft)
Humidity up to 95% relative humidity to 40
o
C, but it should be
protected from temperature extremes which may cause
condensation.
To ensure adequate cooling do not obstruct air vents in the instrument
cabinet.
C AU T I O N This instrument is designed for use in Installation Category II and
Pollution Degree 2 per IEC 1010 and 644 respectively.
C AU T I O N
VENTILATION REQUIREMENTS: When installing the instrument in a
cabinet, the convection into and out of the instrument must not be
restricted. The ambient temperature (outside the cabinet) must be less
than the maximum operating temperature of the instrument by 4
0
C for
every 100 watts dissipated in the cabinet. If the total power dissipated in
the cabinet is greater than 800 watts, then forced convection must be
used.