Omron NT21 Setup Manual

Appendix ASpecifications
188
Performance Specifications
Display Specifications
Item Specification
Display device Monochrome STN LCD (with backlight)
Number of dots (resolution) 260 dots horizontally 140 dots vertically
Dot pitch 0.45 0.45 mm
Dot size 0.42 0.42 mm
Size of a standard character Height 7.2 mm
Displa panel
Effective display area 117 mm horizontally 63 mm vertically
Display panel
View angle
Up/Down: "30_
Left/Right: "30_
Display color White, black 2 color (blue mode)
Life expectancy
(until brightness reduced by half)
50,000 hours minimum
The contrast can be adjusted with the contrast adjustment on the
Contrast adjustment
Th
e contrast can
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e a
dj
uste
d
w
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t
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e contrast a
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ustment on t
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b k f th NT21
Contrast
adjustment
jj
back of the NT21.
Life expectancy*
1
50,000 hours minimum
Backlight
(white cold
Replacement Not user serviceable
(white cold
cathode tube
)
Brightness adjustment Not user serviceable
cathode
tube)
Automatic turn-OFF function Can be set to turn OFF in 1 to 255 minutes, or to remain ON
Indicators
RUN
Lit green: Running normally, Memory Unit automatic transmission
done
Flashing green: Memory Unit automatic transmission being
executed, Memory Unit automatic transmission error
Indicators RUN
executed,
Memory
Unit
automatic
transmission
error
Lit orange during operation: Low battery voltage (when a battery is
installed)
Lit red when NT21 is stopped: Low battery voltage (when a battery is
installed)
*1: Time taken for brightness to reduce to half at normal temperature and humidity
Panel Specifications
Item Specification
Type : Resistive type
Number of switches: 91 (13 horizontally 7 vertically)
Maximum number that can be registered on one screen: 256
Touch panel
Cell size: Approx. 9 9 mm
Touch
panel
Input: Pressure-sensitive type
Operating force: 1 N minimum
Life expectancy: One million operations minimum
External Interface Specifications
Item Specification
Serial communication Serial ports A and B
Conforms to EIA RS-232C
D-SUB 9-pin connector (female)
+5 V output at pin No. 6 (Total output 150 mA max. from ports A and B)
Expansion interface Dedicated connector
Note When using the +5 V output of pin No. 6, check that the total current required by the devices connected to
ports A and B is less than 150 mA. The NT21 supplies +5 V " 5% (150 mA max.) to pin 6 of these ports.

Omron NT21 Specifications

General

Brand	Omron
Model	NT21
Category	Touch terminals
Language	English