Trace Rotation - Fluke Autoranging CombiScope PM3370B Service Manual
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Also See for Autoranging CombiScope PM3370B:
- User manual (297 pages) ,
- User manual (298 pages) ,
- Reference manual (133 pages)
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7 - 2
7.3
TRACE ROTATION
Press the ANALOG key (message ANALOG MODE appears briefly) and the oscilloscope
*
switches to analog mode.
-
Adjust the INTENS TRACE rotary for a well-visible horizontal on the screen.
-
Align the CH1 trace exactly in parallel with the horizontal graticule lines using screw-driver
operated TRACE ROT rotary.
7.4
HORIZONTAL (X) GAIN AND OFFSET (CRT)
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Press softkey SCREEN CALIBR. This activates the UTIL SCREEN CALIBR CRT menu.
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Select 'x-gain' with the softkeys.
Adjust the TRACK (gain) and ∆ (offset) rotary so that the two vertical lines coincide exactly with
-
the 3rd and 9th graticule line.
3RD
Figure 7.1
7.5
TEXT STABILITY AND X-OFFSET (CRT)
-
Select 'x-text' with the softkeys (menu header is UTIL SCREEN CALIBR CRT).
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Adjust the TRACK rotary to maximal stability of the text
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Adjust the ∆ rotary so that the vertical line is exactly in the middle of the graticule.
7.6
VERTICAL (Y) GAIN AND OFFSET (CRT)
-
Select 'y-gain' with the softkeys (menu header is UTIL SCREEN CALIBR CRT).
Adjust the TRACK (gain) and ∆ (offset) rotary so that the two horizontal lines coincide exactly with
-
the 2nd and 8th graticule line.
-
Select 'y-offs' with the softkeys.
-
Adjust the TRACK rotary so that the horizontal line is exactly in the middle of the graticule.
X
9TH
MIDDLE
2ND
MIDDLE
8TH
ST6293
Position of lines for horizontal (X) and vertical (Y) gain and offset calibration.
CALIBRATION ADJUSTMENT PROCEDURE
Y
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