BEFORE APPLYING POWER
– Verify that the correct fuse is installed.
– Ensure the mains supply voltage fluctuation do not exceed ±10% of the nominal supply voltage.
GROUND THE INSTRUMENT
This product is a Safety Class I instrument (provided with a protective earth terminal). To minimize shock hazard, the
instrument chassis and cabinet must be connected to an electrical ground. The instrument must be connected to the
AC power supply mains through a three-conductor power cable, with the third wire firmly connected to an electrical
ground (safety ground) at the power outlet. Any interruption of the protective(grounding) conductor or disconnection
of the protective earth terminal will cause a potential shock hazard that could result in personal injury. If the
instrument is to be energized via an external autotransformer for voltage reduction, be certain that the
autotransformer common terminal is connected to the neutral (earthed pole) of the AC power lines (supply mains).
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE OR WET ENVIRONMENTS
Do not operate the device around flammable gases or fumes, vapor, or wet environments.
DO NOT OPERATE DAMAGED OR DEFECTIVE INSTRUMENTS
Instruments that appear damaged or defective should be made inoperative and secured against unintended operation
until they can be repaired by qualified service personnel.
DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT
Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized
modification to the instrument. Return the instrument to a Keysight Technologies Sales and Service Office for service
and repair to ensure that safety features are maintained. To contact Keysight for sales and technical support, refer to
the support links on the following Keysight website:
www.keysight.com/find/assist
(worldwide contact
information for repair and service).
USE THE POWER CORD PROVIDED
Use the device with the power cord provided with the shipment.
USE THE DEVICE AS SPECIFIED
If the device is used in a manner not specified by manufacturer, the device protection may be impaired.
IEC MEASUREMENT CATEGORY II
The HI and LO input terminals may be connected to mains in IEC Category II installations for line voltages up to 300
VAC rms. To avoid the danger of electric shock, do not connect the inputs to mains for line voltages above 300 VAC
rms. See "IEC Measurement Category II Overvoltage Protection" on the following page for further information.
OBSERVE ALL DEVICE MARKINGS BEFORE CONNECTING TO DEVICE
Observe all markings on the device before connecting any wiring to the device.
LINE AND CURRENT PROTECTION FUSES
For continued protection against fire, replace the line fuse and the current-protection fuse only with fuses of the
specified type and rating.
ENSURE COVER IS SECURED IN PLACE
Do not operate the device with the cover removed or loosened. Only qualified, service-trained personnel should
remove the cover from the instrument.
Keysight EDU34450A User's Guide
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