Keysight Technologies RP7900 Serie Guide D'utilisation Et De Maintenance page 13

Legal and Safety Information
Before Applying Power
Verify that all safety precautions are taken. All connections must be made with the unit
turned off, and must be performed by qualified personnel who are aware of the
hazards involved. Improper actions can cause fatal injury as well as equipment
damage. Note the instrument's external markings described under "Safety Symbols".
SHOCK HAZARD, LETHAL VOLTAGES Many models generate voltages greater than 60
VDC, with some models rated at 950 VDC! Ensure that all instrument connections,
load wiring, and load connections are either insulated or covered using the safety
covers provided, so that no accidental contact with lethal voltages can occur.
SHOCK HAZARD 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.
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.
Fuses
The instrument contains an internal fuse, which is not customer accessible.
Cleaning
To prevent electric shock, always disconnect the AC mains before cleaning. Use a dry
cloth or one slightly dampened with water to clean the external case parts. Do not use
detergent or chemical solvents. Do not attempt to clean internally.
13 Keysight RP7900 Series Operating and Service Guide