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6 F 8 A 0 5 2 1
There are two ways of dealing with such a case.
One is to automatically invalidate the function of automatic adjustment of phase angle rotations by
provisionally setting a sufficiently small value such as about 0.5 for the density multiplier C so that
Xmax is smaller than the upper density measurement range.
Another is to forcibly invalidate the function of automatic adjustment of phase angle rotations. The
latter's setting method is described below.
(1) Switching to the setting mode (see Subsection 5.2.5)
First of all, press the [ESC] key of the converter several times (normally once although this
varies with the operation status) to return to the initial menu display. Next, use the [→] key to
move the LCD indicator cursor to the menu number "2" of "2 SETTING MENU" and then
press the [SET] key to display the warning message saying "Test output will be valid." Make
sure that there is no problem and then press [→] to get into the setting mode. And return to [2:
SETTING MENU]. Then, the output will be switched to the simulated output that is set
beforehand.
(2) Selecting the "OTHERS" setting menu (see Subsection 5.2.5)
Initially, the menu list of menu numbers 5 to 8 is displayed. However, by pressing the [UP] key
once, this display can be switched to the menu list of the next menu numbers 9 to 11. Use the
[→] key to move the LCD indicator cursor to the menu number "11" of "11: OTHERS" and
then press the [SET] key to select the menu of "11: OTHERS."
(3) Verifying or changing ON/OFF of automatic adjustment of phase angle rotations
(see Subsection 5.2.16)
Press the [DN] key once (or the [UP] key five times) to display "NA: N AUTO
ADJUSTMENT". On this screen, it is possible to verify whether the automatic adjustment of
phase angle rotations is valid (ON) or invalid (OFF). Here, if it is necessary to alter the setting,
press the [SET] key to switch to the setup display of the automatic adjustment of phase angle
rotations. Each time the [UP] or [DN] key is pressed, the set value is alternated between ON
and OFF. Set the value to OFF and then press the [SET] key to confirm it. The screen will be
returned to the immediately preceding one; make sure that the value is correctly reset.
(4) Returning to the measuring mode
Press the [ESC] key twice to return to the initial menu screen and return to the measuring
mode from the setting mode to resume the normal measurement.
9.3.7
Actions after invalidating the automatic adjustment of phase angle rotations
After invalidating the automatic adjustment of phase angle rotations to make it possible to take
measurements appropria tely even at high density in excess of Xmax, implement the span
calibration in accordance with Section 6.5 and set the density multiplier to an appropriate value.
While referring to Table 9.3.2, use this reset density multiplier to calculate the maximum density
Xmax, which can be applied to the function of automatic adjustment of phase angle rotations and
judge whether this Xmax is greater than the value of the upper density measurement range that is
set.
If Xmax is greater than the upper density measurement range, the function of automatic adjustment
of phase angle rotations is applicable. Therefore, return the function of automatic adjustment of
phase angle rotations which is set to "OFF" in Subsection 9.3.6 to" ON" .
If Xmax is smaller than the upper density measurement range, the function of automatic adjustment
of phase angle rotations is invalid. Therefore, it is unnecessary to return the function of automatic
adjustment of phase angle rotations which is set to "OFF" in Subsection 9.3.6 to " ON" .
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