7
to prevent any unwanted activation of the button e.g. while
wearing gloves.
The two buttons have been named On/Off [
] and Menu [Ξ].
This indicates the main purpose of the buttons.
The On/Off button switches (through the menu selection) the
instrument on and off. The Menu button is used to operate the
menu lists of the instrument.
Other functions of these buttons are explained under appropriate
locations.
In this manual the button names or the representing symbol is
used when describing various operations.
4 Using the Buttons and Special Features
Using the buttons is a trivial task. Pressing the buttons requires
a bit more force than, for example, a regular keyboard button
since the surface of the button is above the surface of the
instrument front face. In the RDS-31, the press duration of the
buttons is crucial with regard to the desired action, so it is
necessary to pay attention to the matter.
4.1 Button Pressing Times
When operating the instrument, three different length pushes
can be used. There is a visual guide and an audible signal that is
given at the start of each time interval:
Short (p < 0.75 s)
Intermediate (0.75 < p < 1.5 s)
Long ( p > 1.5 s)
Note: The Analog Bar Graph can be disabled with the CSW-31 software.
A Short push of the button while
An intermediate push while
A long push while
is lit.
is lit.
is lit.
Note: While the different lengths of presses add versatility to the operation
of the instrument, it is possible to keep everything simple. Almost all the
features that would need this operation mode can be disabled leaving only
the bare minimum of operations.
The minimum approach is to disable all the menu functions: meter would
be constantly switched on and the On/Off button would switch the backlight
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