Hitachi V-151F Operation Manual page 4

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NOTE
o This Instrument should be adjusted at an ambient temperature
of +20°C for best overall accuracy.
Allow at least 15 minutes warmup before proceeding.
o Polyvinyl chloride (PVC) film is attached on the enclosure
and the front panel of the oscilloscope to protect the metal
surface.
If the PVC film is damaged by scratches, remove it.
o To clean the enclosure or the front panel, use neutral deter
gent.
Refrain from using thinner, benzine, alcohol or other
chemicals.
o For safety operation, the instrument chassis and cabinet be
sure to connect the ground lead of the GND (ground) terminal
to earth ground, if a two-wire AC power system is used.
Failure to complete the ground system may allow the chassis
and cabinet of this instrument to be elevated above ground
potential and pose a shock hazard.

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