Preparation for Use
POWER CORD
This instrument has a detachable, three-wire power cord with a
three-contact plug for connection to both the power source and
protective ground. The ground contact on the plug connects
through the power-cord to the external metal parts of the instru
ment. For electrical-shock protection, insert this plug only into a
power-source outlet that has a properly grounded protective-
ground contact.
Instruments are shipped with the required power cord as ordered
by the customer. Power-cord plug information is presented in
Table 1-1, and part numbers are listed in Table 6-1.
After plugging the power cord into its receptacle, secure it to the
rear panel using the plastic clamp, screw, and washer provided.
INSTRUMENT COOLING
Maintain adequate airflow to prevent instrument damage from
internally generated heat. Before turning on the power, verify that
the spaces around the air-intake holes on the sides and rear of
the cabinet are free of any obstruction to airflow.
INITIAL START-UP
Up to now, you should have made the following preparations:
1. Read the safety information.
2. Verified that the LINE VOLTAGE SELECTOR switch is set for the
source voltage to be used.
3. Verified the fuse.
4. Attached the power cord.
5. Ensured adequate ventilation around the instrument.
6. Plugged the power cord into the appropriate power-source
outlet.
Now turn on your oscilloscope by pressing in the POWER button.
Observe that the POWER-ON indicator, located below the button,
illuminates.
2225 Operators
1-5
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