EZ Digital OS-3060D Instrucciones de operaciones descargar pdf (Pagina 14)

Then connect the earthing-type plug to a

socket-outlet with an earthing contact and pro-

tective earthing.

Warning!

There must be no break in the protective con-

ductor/earth connection inside the appliance, in

the power cord or in the socket-outlet because

any discontinuity in the protective conductor

would create a risk of fatal injury.

c) Actuate the power ON/OFF switch (1). After

roughly 30 s, slowly turn the INTEN knob (2) to

the right until the trace becomes visible on the

screen. Then set the desired brightness level.

NOTE:

Do not leave the brightness set to maximum for

any length of time in the absence of a signal.

Above all, note that no spot is visible on the

screen (= no horizontal sweep) immediately

after powering-up. Otherwise the electron

beam or spot will burn the CRT's internal

coating, thus damaging it.

d) Use the FOCUS knob (3) to adjust the trace

focus.

e) Then use the CH-1 POSITION knob (16) to

move the trace so that it coincides with the

horizontal centre line.

f) If the trace does not coincide exactly with the

centre line, adjust it by using a suitable

screwdriver to operate the ROTATION control

(5).

g) Use the POSITION knob (25) to align the trace

horizontally and centrally.

POWER switch (1) : OFF (not depressed)

INTEN (2) : set to left-hand stop

FOCUS (3) : set to middle position

AC/GND/DC switch (10)+(11) : set toAC

VOLTS/DIV switch (12)+(13) : set to 20 mV position

POSITION 16)+(17) : middle position, depressed

VARIABLE (14)+(15) : set to right-hand stop, depressed

vertical mode switch (18) : set to CH 1 position

TIME/DIV switch (20) : set to 0,5 ms

VARIABLE knob (24) : set to right-hand stop, depressed

Horizontal POSITION (25) : set to middle position

Trigger MODE switch (26) : set to AUTO

Trigger SOURCE switch (27) : set to CH 1

Trigger LEVEL (29) : set to middle position

HOLDOFF knob (28) : set to NORM position = left-hand stop

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EZ Digital OS-3060D Instrucciones de operaciones Pagina 14

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