22 Chapter 2 System Operation
CAUTION
Do not exceed 250 VAC on the line input.
Do not operate with a line voltage that is not within ±10%
of the line setting. Too low of an input voltage may cause
excessive ripple on the DC supplies. Too high of an input
voltage will cause excessive heating.
2.5.4 GND Post
Provides access to chassis ground, which is also an earth ground as long as a standard
3-wire line cord is used. This is a protective conductor terminal to be used to achieve
chassis grounding requirements when the main connectors don’t provide an earth
ground terminal. Use a minimum of 18 gauge wire to connect to this terminal.
2.6 Warm Up and Environmental Consideration
Operate the 6000 at an ambient temperature in the range of 0 to +40°C. Storage
temperatures should be in the range of -20 to +60°C. To achieve rated accuracy, let
the 6000 warm up for 1 hour. For greatest accuracy, recalibrate when ambient
temperature changes more than a few degrees.
CAUTION
Operating above +40°C can cause excessive heating and
possible component failures.
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