Turning the 4200A-SCS output off does not place the instrument in a safe state (an interlock
is provided for this function). Hazardous voltages may be present on all output and guard
terminals. To prevent electrical shock that could cause injury or death, never make or break
connections to the 4200A-SCS while the instrument is powered on. Turn off the equipment
from the front panel or disconnect the main power cord from the rear of the 4200A-SCS
before handling cables. Putting the equipment into an output-off state does not guarantee
that the outputs are powered off if a hardware or software fault occurs. Precautions must be
taken to prevent a shock hazard by surrounding the test device and any unprotected leads
(wiring) with double insulation rated for 250 V, Category O.
Basic system connections are illustrated in the figure below.
Figure 121: Example system connections
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