EZ Digital OS-3060D Instruções de Operação descarregar pdf (Página 12)

11

TV-V position

This position and the next position (TV-H)

are used for easier triggering by TV and

video signals. TV-V below approx. 0.1 ms

and TV-H above approx. 0.1 ms.

(27) TRIGGER SOURCE:

Used to set the trigger source

CH1 position

The trigger signal of channel 1 is used in this

switch position.

CH2 position

The trigger signal of channel 2 is used in this

switch position.

LINE position

The trigger signal derived from the mains

frequency is used in this switch position.

EXT position

If you select this switch position, the signals

that are fed into the EXT TRIG IN socket are

used as a trigger signal.

(28) HOLDOFF:

Certain complex signals can be triggered by

adjusting this knob. The HOLDOFF time is

increased by turning the knob to the right.

The NORM position (turned left as far as the

stop) is used for "simple" signals.

(29) TRIGGER LEVEL:

This pot can be used to select the triggering

point relative to the signal amplitude.

Turning it to the right moves the triggering

point towards the positive peak signal

amplitude, turning it to the left moves the

triggering point towards the negative peak

signal amplitude.

(29a) Trigger SLOPE switch:

Pulling out or pushing in the trigger level

control selects the positive-going edge of

the signal

Pulled => negative

Pushed => positive

(30) EXT TRIG IN:

BNC socket used to connect an external

trigger signal

2.1.4 (31) READOUT:

Cursor control panel for screen overlays

Fig. 4 Cursor Control Panel

(a) Select Use this button to select which

cursor line is to be moved (note

the arrows at the start of each

line)

(b)

∆V, ∆T, 1/∆T

Use this button to select the type

of display:

∆V stands for delta V

(volt = voltage), primarily for

amplitude measurements

∆T stands for delta T (time =

period)

1/∆T is the reciprocal of the

period --> frequency

Note

The frequency is only indicated in "MHz, kHz or

Hz" in storage mode: when not in storage

mode, the number of DIVs is indicated.

(c) ON/OFF If the "∆V, ∆T, 1/∆T" and

"SELECT" buttons are pressed

simultaneously, the screen over-

lays are switched on or off.

(d) >,< These buttons are used to move

the cursor lines

2.1.5 (32) Storage mode operator panel

Fig. 5

(a) storage Pressing this button "switches on"

storage mode; a LED under the but-

ton cap is lit/ﬂashes/ﬂickers to con-

ﬁrm storage mode. Pressing the

button again switches off storage

mode and the LED goes out.

STORAGE MODE

STORAGE MENU HOLD

SAVE

SINGLE SELECT PLOT

RECALL

READOUT/CURSOR

ON/OFF SELECT

V.

T.1/ T

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