3-10 External Brightness Adjustment
3-61
3-10 External Brightness Adjustment
Connect a variable resistor to the external brightness adjustment connector on the NS-series PT to exter-
nally adjust the brightness of the backlight in the touch panel. This allows the brightness to be set lower than
the Low selection in the backlight brightness settings (High, Medium, and Low) under the operating settings
for NS-series PTs. Brightness can be adjusted externally only with the NS15.
Item Specification
Recommended resis-
tance range
0 kΩ to 50 kΩ
Recommended resistive
load power
0.1 W
Recommended cable AWG (10 to 26): 2 m max.
Variable Resistor for
Brightness Adjustment
Reference
Resistance of vari-
able resistor (kΩ)
Brightness (cd/m
2
)
0 400
5 380
10 330
15 290
20 200
25 110
30 60
35 20
40 15
45 15
50 15
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