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the proper low resistance bonding to ground is in place.
2.2.3. Basic Connections
Power Cable
The instrument is shipped with a line cord containing a protective earth ground.
When the line cord is connected to an appropriate AC power source the cable will
connect the chassis to earth ground.
The main plug shall only be inserted in a socket outlet with
a protective ground (earth) contact. This protective ground
must not be defeated by the use of an extension cord
without a protective conductor.
Return Connection
When the instrument’s return is grounded, any internal and external stray leakage
will be monitored due to currents that flow from high voltage to earth ground (such
as from high voltage to the chassis of the instrument). These currents are inherent
and will cause errors when trying to monitor very low leakage currents in the
microamp range.
The output power supplies of this instrument are referenced directly to earth
ground. Any conductor that completes a path between the high voltage and earth
ground will form a completed circuit.
2.2.4. Environmental Conditions
This equipment is intended for indoor use only. The equipment has been
evaluated according to Installation Category II and Pollution Degree 2 as specified
in IEC 664.
This instrument may be operated in environments with the following limits:
Temperature….................. 41° - 104° F (5° - 40°C)
Relative humidity…........... 0 – 80%
Altitude…......................... 6560 feet (2,000 meters)
Keep the ventilation slits uncovered during operation.
Failure to do so could cause the instrument to overheat and
may damage internal components.
Storage and Shipping Environment
This instrument may be stored or shipped in environments with the following limits:
Temperature….................. -40° - 167° F (-40° - 75°C)
Altitude…......................... 50,000 feet (15,240 meters)
The instrument should also be protected against temperature extremes that may
cause condensation within the instrument.
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