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Specifications Appendix A
Performance Specifications
Display Specifications
Note Time taken for brightness to reduce to half at normal temperature and humidity
Version 2 (-V2) PTs: 25,000 hours min. at medium brightness, 10,000 hours min. at high brightness
Item Specification
NT31-ST123@-EV3 NT31C-ST143@-EV3
Display
panel
Display device NT31: Monochrome STN LCD (with backlight)
NT31C: Color STN LCD (with backlight)
Number of dots
(resolution)
320 dots horizontally × 240 dots vertically
Size of a stan-
dard character
5.76 mm
Effective dis-
play area
118.2 mm horizontally × 89.4 mm vertically (5.7 inches)
View angle Up: 20°
Down: 40°
Left/right: ±45°
Up: 65°
Down: 70°
Left/right: ±55°
Display color NT31:Black, white (2 colors)
NT31C:8 colors (and intermediate colors can be displayed with tiling patterns)
Life expectancy
(until brightness
reduced by half)
50,000 hours minimum
Contrast adjust-
ment
Adjustable in 100 levels by operation at the touch panel
Backlight
(white cold
cathode
tube)
Life expectancy
(See note.)
At high brightness: 50,000 hours minimum
Replacement Cannot be replaced by the user.
Brightness
adjustment
Adjustable in 3 levels by touch switch operation at the touch panel
Automatic turn-
off function
Can be set to turn off in 1 to 255 minutes, or to remain on.
Indicators POWER (green
LED)
Lit while power is being supplied
RUN Lit in green: Running normally, Memory Unit automatic transmission done
Flash in green: Memory Unit automatic transmission being executed, Memory Unit auto-
matic transmission error
Lit in orange: Low battery voltage (during operation)
Flash in red: Low battery voltage (when NT31/NT31C is stopped)
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