Velleman HPS10 - Page 34

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HPS10 PersonalScope
TM
Probe setup
• At 1s/div timebase or slower, the readouts are forced
to the instant information. ‘Vs’ (Fig. 25)
• If no key is pressed during 10 seconds, the unit
returns to its previous operating mode and the
cursorkeys are set for changing the timebase and
sensitivity.
PROBE SETUP
Press the ‘Probe x1/x10’-key to set the measurements
accordingly the x1/x10-probe setting. (Fig. 25)
Notes:
• Automatically calculate the correct readouts
depending the x1 or x10 probe setting.
• An ‘x10’ symbol is displayed if this mode has been
selected.
• X10 measuring probes should be calibrated!
• IMPORTANT: Set the measuring probe in the x10
position for measuring high voltages (>100Vp+dc)
Setting up a X10 measuring probe
When used in the X10 position, a measuring probe
should always be callibrated to the measuring instrument
being used, in this case the Personal Scope. (Fig. 27)
• Open the battery cover.
• Set the probe input to X10
• Set the voltage per division to 1V
• Set the time per division to 0.1ms
• Select AC for the input.
Use the probe to perform measurements at the
preselected point under the battery cover. Adjust the
trimmer of the measuring probe in order to obtain a
square wave signal with a top that is as flat as possible.
(Fig. 28)
probe
x1/x10
x1 x10
x1 x10
Fig 26
Fig 28
probe
test
x10
Fig 27
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HPS10_man.pub
page 34
Wednesday, April 03, 2002 09:22
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