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cause internal damage and represents a safety risk to the operator.
The Hypot III must be connected to a good ground. Be certain
that the power wiring is properly polarized and that 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 60664.
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)
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