SHOCK HAZARD Lethal Voltages
Some power modules generate voltages up to 160 Vdc
Ensure that instrument connections, load wiring and connections are either insulated or
covered so that no accidental contact with lethal output voltages can occur..
SHOCK HAZARD After Turn-off
Never touch cables or connections immediately after turning off the unit. Depending on
the model, lethal voltages can remain at the output terminals for several seconds after
turn-off. Verify that there is no dangerous voltage on the output or sense terminals
before touching them.
SHOCK HAZARD from external energy sources.
Because the instrument can be used as a load to sink current, hazardous voltages from
an external energy source such as a battery may be present on the output terminals even
with the unit turned off. Provision must be made to disconnect the external energy
source before touching the output or sense terminals.
SHOCK HAZARD from module installation or removal.
Never apply power to the instrument without all six module slots occupied with modules
and/or filler panels. Never attempt to remove or insert a module or filler panel when
power is applied to the instrument. The power switch must be turned off, and ac power
must be disconnected from the instrument before removing or installing modules or filler
panels.
Do Not Operate in an Explosive Atmosphere
Do not operate the instrument in the presence of flammable gases or fumes.
Do Not Remove the Instrument Cover
Only qualified, service-trained personnel who are aware of the hazards involved should
remove instrument covers. Always disconnect the power cable and any external circuits
before removing the instrument cover.
Do Not Modify the Instrument
Do not install substitute parts or perform any unauthorized modification to the product.
Return the product to a Keysight Sales and Service Office for service and repair to ensure
that safety features are maintained.
Readings and State Reported by the Browser Web Control Page.
Should network communication issues occur, the reported readings and instrument
state shown in the Browser Web Control page may not represent the actual readings or
instrument state. Do not rely on the reported readings from the Web Control Browser to
determine if a circuit that may have hazardous voltages present is safely de-energized.
Never modify any connections to the instrument while power is applied.
Legal and Safety Information
11 Keysight MP4300 Series Operating and Service Guide
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