Jadak Photo Research SpectraScan PR-7 Series, Руководство пользователя

Страница: 40 / 142

Chapter 4
– Basic Setup Procedures
36
H
OW TO
A
DJUST
B
RIGHTNESS AND
C
ONTRAST
Brig
H
tness and Contrast adjusts the appearance on the display. To access and adjust Brightness and
Contrast:
FIGURE 27 - BRIGHTNESS AND CONTRAST SCREEN
1.
From the Preferences menu, touch Brightness and Contrast.
2.
To adjust the general brightness of the PR-7XX
display, touch the ▼ or ▲ icons on either side of the
Brightness field. The brightness level is adjustable from 5% to 100%.
3.
To adjust the screen contrast, touch the ▼ or ▲ icons next to the
Contrast field. The contrast is
adjustable from 0% to 100%.
4.
The PR-7XX
screen brightness during a measurement can be set by touching the ▼ or ▲ icons
adjacent to the Brightness during measure field . Settings range from 0% (off) to 100%.
Note: When measuring low light levels, set the “Brightness during measure” level to 0% so that the
display light level does not contribute to the outcome of the measurement.
5.
Touch Back when finished.
H
OW TO
E
NABLE AND
D
ISABLE
I
NSTRUMENT
S
OUNDS AND
A
LERTS
The PR-7XX can audibly alert the user to various instrument conditions including:
Button Click
–
A sound is generated each time the touch screen is actuated.
Shutter Sounds
–
A beep accompanies each measure shutter action at the transition between light and dark
measurements, and at the end of the measurement sequence.
Measurement Complete Alerts
–
A beep is sounded at the end of the measurement.
and
Low Battery Warning (optional).
– If your PR-7XX is equipped with the optional Li-ion battery, an alert is
sounded if the battery charge drops to 5% or less. Make sure to recharge the battery at this point for continued
operation.
To enable and disable these features: