Velleman EDU08, Getting Started

6

www.velleman.eu - Velleman Projects

EDU08 Getting started

„

THE MENU

MENU ITEMS:

Volt/Div:

Select the appropriate 

V/div

 setting.  

Available setting are:

AUTO Volt

(The unit automatically selects correct V/div setting)

0.1V/div

(Full screen range: 0.8V)

0.2V/div

(Full screen range: 1.6V)

0.5V/div

(Full screen range: 4V)

1V/div 

(Full screen range: 8V)

2V/div 

(Full screen range: 16V)

5V/div

(Full screen range: 40V)*

*(Note: safety requirements limits max. input voltage to 30Vp)

Time/Div: 

Select the appropriate 

Time/Div

 setting.  

Available setting are:

AUTO time 

(The unit automatically selects correct Time/div setting) 

10µs/div 5ms/div
20µs/div  

10ms/div

50µs/div 20ms/div
0.1ms/div 50ms/div
0.2ms/div 100ms/div
0.5ms/div   200ms/div
1ms/div 500ms/div

Coupling:

Select the desired 

input coupling

:

• 

AC:

 Only the 

AC-component

 of the signal is displayed

• 

DC:

 Both the 

AC

 and the 

DC component

 of the signal is 

displayed

Trigger:

Turn on or off the 

trigger

 function.

(Note: When AUTO Volt and/or AUTO time is selected, trigger-
ing is also set to AUTO Trg).

• 

ON: 

The unit will 

trigger

 when the signal reaches the set 

trigger 

level

 and when the slope corresponds with the selected 

slope

.

• 

OFF:

 The unit will not 

trigger

 on a specific level. This is also 

called ‘

free running

’. The displayed signal will not be stable.

Trg Slope (Trigger Slope): 

Select the edge of the signal on 

which the scope will 

trigger

.

• 

Rising:

 Trigger when the signal level rises when it reaches the 

trigger level

.

• 

Falling: 

Trigger when the signal level drops when it reaches the 

trigger level

.

Adjust:

Choose the function of the up/down arrow keys:

• 

t-V/div:

 up/down/left/right arrow keys set 

Volt/div

 and 

time/div

.

• 

Trg Level:

 up/down arrow keys set 

trigger level.

Measure:

 Select the desired readout, which is displayed in the 

lower righthand corner of the display. Available readouts are:

None:  

Do not display a value

Vdc:  

Display the level of the 

DC component

 of the signal

Vac:  

Display the level of the 

AC component

 of the signal

Vac+dc:  

Display the level of the complete signal

Vpk-pk:  

Display the 

peak to peak

 level of the signal

Vmax:  

Display the maximum level of the signa

l

Vmin:  

Display the minimum level of the signal

dBm:  

Display the level expressed in dB with respect to  

the reference: 0dB=0.775Vrms

Markers:

Select the markers you wish to control with the arrow 

keys: Choose between 

V1 t1,f1

 or 

V2 t2,f2

Show:

Select the vertical marker readout:

• 

Time mark: 

Display time between the 2 vertical markers

• 

Freq mark: 

Display the 

frequency

 in Hz of the part of the 

signal between the 2 vertical markers

Run Mode:

 Choose how the screen will be updated

• 

Run:

 The screen is continuously updated.

• 

Single: 

The screen is only updated once.Every time the ‘Run/

Hold’-button is pressed, the screen is updated

Contrast:

 Set the contrast of the screen

Range: 1..7  (1: low contrast, 7: high contrast)

Default: 5

Eco Mode:

• 

On: 

The LCD backlight and the input coupling relay is turned 

off when the unit is left idle for approx. 10 minutes, to reduce 

battery drain. Press any key to resume.

(Note: There is still a drain of about 40mA, even when Eco 
Mode is ON, so make sure to turn off the unit when not in 
use).

• 

Off: 

The eco mode is disabled.

UP and DOWN arrow buttons allow you to scroll trough all menu items on page 1 and 2. LEFT and RIGHT arrow buttons allow you 

to change the settings. Press MENU button again to leave menu and enable your selection.

Press the MENU button to display the menu

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page2: