SDT International SDT170, Руководство пользователя

Страница: 31 / 141

7. Presentation
MAN.170.EN--04--SDT170-user-manual-Eng.docx 31/141
7.4 T
HE KEYBOARD
(
ALL VERSIONS
)
The keys correspond to the following functions:
Key Function Remarks
First press: access to the
menus and sub-menus.
See chapter “The main menu”.
Second press: return to
previous or basic screens.
Increase amplification level. The
A
on screen is modified.
Scroll up through menus. Use to scroll through the menu options.
Increment figures. Increment a value (time, the date.
Reduce amplification level. The
A
on screen is modified.
Scroll down through menus and
sub-menus.
Decrement figures. Decrement a value (time, the date.
Measurement peak and hold
key (except S version). Keep the key depressed to display the value.
Only used when measuring ultrasound and
noise levels (dBµV and dBA).
Tunable frequency setting. Increase the tunable frequency.
Storage of the shown
(measured) value (except S
version). Only available when a valid measurement has
been taken, by pressing the
key. Measured
value is stored on the position selected; reading
is done through the
View data
menu.
Tunable frequency setting. Decrease the tunable frequency.
Move the cursor to the right. Used during the enter comment procedure or to
set date, etc.
Acceptance of the choice
(Enter). Used to validate and confirm a shown selection.
Activate backlighting. Press the key to switch on the backlight.
Pressing the key again switches off the
backlight. The backlighting switches off
automatically if no buttons are used within a
pre-defined period of time set by the user.
On/Off switch. First key press: switch on the unit.
Second key press: switch off the unit.
The unit switches off automatically if no buttons
are touched on the keypad within pre-defined
period of time set by the user.