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3. Device Hardware Overview
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Display
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- color graphical display
Impulse LED
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- red LED of impulse output
Alphanumeric keypad
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- keys 0-9 (a-z)
ESC key
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- termination of functions
Exp key
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- input of exponent of number
Shift key
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- switching of keys functionality
Power key
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- power/LCD backlight turning on/off
Sign key
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- input of plus/minus sign
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3.1 Front Side
Figure 3 – Front side of the device
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WS-UGFW619-EN
Working Standard
Function keys
- quick access to functions
Indicator of charging of batteries
- green LED indicating charging status
Choice keys
- arrows and OK
PgUp key
- paging upwards
PgDn key
- paging downwards
Del key
- deleting
OK key
- confirmation of choice
Point key
- decimal point
User's Guide
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