24
Keysight N2818/9A Differential Probes User Guide
Using the Probe
Concerning the Oscilloscope or Voltage Measuring Instrument to Which the Probe is
Connected
WARNING
Whenever it is likely that the ground protection is impaired, you must
make the instrument inoperative and secure it against any unintended
operation.
WARNING
If you energize the instrument by an auto transformer (for voltage
reduction or mains isolation), the ground pin of the input connector
terminal must be connected to the earth terminal of the power source.
WARNING
Before turning on the instrument, you must connect the protective earth
terminal of the instrument to the protective conductor of the (mains)
power cord. The mains plug shall only be inserted in a socket outlet
provided with a protective earth contact. You must not negate the
protective action by using an extension cord (power cable) without a
protective conductor (grounding). Grounding one conductor of a
two-conductor outlet is not sufficient protection.
WARNING
Only fuses with the required rated current, voltage, and specified type
(normal blow, time delay, etc.) should be used. Do not use repaired fuses
or short-circuited fuse holders. To do so could cause a shock or fire
hazard.
WARNING
Capacitors inside the instrument may retain a charge even if the
instrument is disconnected from its source of supply.
