Operator's Manual
28 WS-OM-E Rev B
expected.
Protection Class I refers to a grounded equipment, in which
protection against electric shock is achieved by Basic Insulation
and by means of a connection to the protective ground
conductor in the building wiring.
CAUTION
Do not connect or disconnect probes or test
leads while they are connected to a voltage
source.
Cooling Requirements
The instrument relies on forced air cooling with
internal fans and ventilation openings. Care must
be taken to avoid restricting the airflow around the
apertures (fan holes) at the sides, front, and rear of
the DSO. To ensure adequate ventilation it is
required to leave a 10 cm (4 inch) minimum gap
around the sides, front, and rear of the instrument.
CAUTION
Do not block the ventilation holes located on
both sides and rear of the DSO.
CAUTION
Do not allow any foreign matter to enter the
DSO through the ventilation holes, etc.
AC Power Source
The instrument operates from a single-phase, 100
to 240 V
rms
(+/-10%) AC power source at 50/60 Hz
(+/-5%), or single-phase 100 to 120 V
rms
(+/-10%)
AC power source at 400 Hz (+/-5%).
No manual voltage selection is required; the
instrument automatically adapts to line voltage.
Depending on the accessories installed (front
panel probes, PC port plug-ins, external printer,
etc.), the instrument can draw up to 200 VA (4-
channel models) or 170 VA (2-channel models).
Note:
The instrument automatically adapts itself to
the AC line input within the following ranges:
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