5-4
CAUBRATION ADJUSTMENT PROCEDURE
When the ScopeMeter LCD displays the indication CAL", you must first apply the appropriata input
(calibration) signal. When the correct signal is present at the correct terminal, you start the built-in
calibration by pressing the most right READY softkey. The text “READY" will be in reverse video, to
show that the ScopeMeter’s internal calibration is active. When the process is ready, the "READY"
text will change again, from inverted to normal. Now you can use the select/adjust
Keys to advance
to the next calibration step or return to
a
previous calibration
step.
After you have completed a calibration sequence, press either CONTRAST.
SCOPE
or METER
softkey again to return to the CALIBRATE menu. The new calibration data will stay in memory to
enable you to store it permanently with the CAL STORE key.
Press the ESCAPE softkey to leave the active calibration mode without storing the new calibration
data.
This
will
also
return you to the CALIBRATE menu.
5.5 CONTRAST
CAUBRATION ADJUSTMENT PROCEDURE
You activate the CONTRAST Calibration Adjustment Procedure from the CALIBRATE menu, by
pressing
the left most CONTRAST softkey. When this softkey Is depressed, the text ‘CONTRAST" is
shown in
reverse video,
to show that this calibration mode is
active.
Now
use
the adjusl/select
Keys
to adjust
the
contrast
of the
LCD
to
your own (personal)
setting.
When
you
have found the correct setting,
you can
make this setting ready for calibration atorage,
by
pressing
frie READY
softkey
once.
NOTE: When you press the READY softkey, this does not mean that the new value of the LCD
oc»/?frast/s actually stored in the Flash ROMs of the ScopeMeter. This only happens when
you
press
the CAL STORE softkey.
Press the CONTRAST softkey again to ieave the CONTRAST Calibration Adjustment Procedure.
The text "CONTRAST will change from reverse video Into normal again.
5.6 SCOPE CALIBRATION ADJUSTMENT PROCEDURE
You can start the SCOPE Calibration Adjustment Procedure from the CALIBRATE menu by pressing
the SCOPE softkey. When this softkey is pressed, the text 'SCOPE" is shown in reverse video, to
show that this calibration mode is active.
The SCOPE Calibration Adjustment Procedure Is divided into two parts:
-
Hardware SCOPE Caiibration Adjustments: steps H1 to H4
•
Closed Case SCOPE Calibration Adjustments steps 85 to S29
NOTE: During the following CaliPration Adjustment Procedure, you must connect the ScopeMeter
input connectors to the signal generator outputs by means of cables (BNC connectorchannel
A or B) or two standard banana test leads (COM and mV/Ohm/Dk>de banana connectors).
5.6.1 Hardware SCOPE Calibration Adjustments
The first four
steps
of the SCOPE Ceilbration Adjustment Procedure are called Hardware SCOPE
Calibration Adjustments. To perform the Hardware SCOPE Calibration Adjustments, you must
open the ScopeMeter. The dissssembly procedure for these calibration adjustments is described in
chapter
6
(section 6.1 and 6.2.3).
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