Measurement Synchronization Modes; 2� Measurement Synchronization Modes - Konica Minolta CA-410 Instruction Manual

Measurement Functions of Probes
2� Measurement Synchronization Modes
Measurement synchronization modes are designed to select an integration time according to the vertical scanning
frequency of a display. The time required for one measurement depends on the measurement speed setting, and is an
integer multiple of the integration time plus the time required for communication, calculation, etc. Select a mode suitable
for the type of the display to be measured.
Measurement
synchronization Description of mode
mode
NTSC Mode for measuring NTSC displays
Mode for measuring PAL and SECAM
PAL
displays
Mode for measuring while synchronizing
with the display's vertical
EXT synchronization signal input (refer to
page 17 for how to input vertical
synchronization signals)
Mode that allows measurement with an
integration time of 100 ms
Available when the display's vertical
scanning frequency is unknown or when
UNIV input of the vertical synchronization
signal is not possible.
(When the light source fluctuates sharply
due to PWM control, etc., fluctuations in
the measured values may increase.)
When the display's vertical
synchronization signal is known, set that
INT
information so that it can be used for
measurement.
Mode that allows you to specify the
MANUAL
integration time
• O n a flickering LCD, the screen is fluctuating at half the frequency of the vertical scanning frequency. When you
Memo
measure a display in this state, the luminance and the chromaticity vary if you set the same integration time as
the vertical scanning frequency.
When measuring with the measurement synchronization mode set to MANUAL, set the integration time double
(or another even multiple of) the vertical scanning frequency to ensure stable LCD measurement.
• T he integration time can also be set to Single-Frame (half the integration time with Double-Frame) when the
measurement mode is NTSC, PAL, EXT, or INT.
Note: Integration time is fixed to Double-Frame when using a data processor.
Integration time
(Double-Frame)
33.3 ms
40.0 ms
(1 vertical scanning
period)
×2
100 ms
(Set vertical scanning
period)
×2
Settable range
4.0 to 4000.0 ms
(For FMA:
7.7 to 4000.0 ms)
20
Display's vertical
Vertical scanning
synchronization
frequency
signal input
59.94 Hz Not required
50 Hz Not required
0.50 to
240.00 Hz
Required
(For FMA:
0.50 to 130.00 Hz)
— Not required
Settable range
0.50 to
240.00 Hz Not required
(For FMA:
0.50 to 130.00 Hz)
— Not required