Horizontal Deflection And Triggering - Fluke CombiScope PM3370B User Manual

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4.5 HORIZONTAL DEFLECTION AND TRIGGERING

Before starting with the horizontal deflection functions, you must set the
instrument to a predefined state to create a correct start situation.
STANDARD SETTING
- Simultaneously press the STATUS and TEXT OFF keys.
- Connect the Probe Adjust signal to channel 1.
The Probe Adjust signal, now supplied to the input, is a square wave with a lower
level of 0V and a top level of 600 mV.
- Press AUTOSET.
TIMEBASE
TIME/DIV
4 periods/cycles of the square wave are displayed on the screen.
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- Press the 's' (left) key of the MainTB TIME/DIV key pair a few times.
The more you press the left ('s') key, the slower the timebase will run. This results
in the number of displayed periods/cycles of the input signal to increase.
- Press the 'ns' (right) key of the MainTB TIME/DIV key pair a few times.
The number of displayed periods/cycles decreases as the timebase speed
increases.
Observe that the timebase speeds are adjustable in steps following a 1-2-5
sequence.
MTB 500 s
- Set the timebase to 200 s.
The signal is displayed with four periods on the screen.
HOW TO USE THE INSTRUMENT
TIME/DIV
TIME/DIV
MTB 100 s
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