Velleman-projects EDU09 Assembly instructions Bedienungsanleitung PDF herunterladen (Seite 12)

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Calibration & assembly

III. CALIBRATION

There is no external driver necessary, the EDU09 uses the internal Microsoft Windows HID driver,

these will loaded automatic.

• Set RV1 to the middle position.

• Connect the EDU09 oscilloscope to the USB slot of the PC. The red led should light.

• Run the installed software EDU09.EXE

• Ifitisconnectedforthersttime,calibrationprocedurewillstartautomatically.

• If it does not start automatically: In the Options menu select “Calibrate” and then click OK to

start the calibration. Wait until calibration is successful.

Advanced calibration: Finetuningoftheinputampliercircuit

(requires a 1.5V battery)

This calibration is not really necessary, you must only do this, if you want a higher precision of your

measurements

• In the ‘Options’-menu select “Expert Settings”.

• In the ‘View’-menu select “Waveform Parameters...”.

• In the ‘Waveform Parameters’-window select the check box “DC Mean”.

Bolts

(4x)

Nuts

(4x)

Distance bolts

(4x)

I V. ASSEMBLY

Your scope is now ready for use.

Caps

(4x)

25mm M3 Bolt

15mm

M4 spacer

black cap

M3 nut

25mm M3 Bolt

15mm

M4 spacer

black cap

M3 nut

Mount the cover.

1.5V

• Measure the output of the battery with a multi-

meter and remember it.

• Connect the battery to the oscilloscope’s input.

• Set Volts/Div. to “0.5V” and click the “Run”

button.

• Adjust trimmer RV1 until the displayed “DC

Mean” value in the ‘Waveform Parameters’-

window corresponds with the measured value.

• Remove battery.

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