• You can select the position of the character in the edited text using the ◄ / ►
keys.
• The available ASCII characters can be changed using the ▲ or ▼ key. The
subsequent digits, underline, upper case letters and space appear on the
display in the inversely displayed position after each press of the above-
mentioned keys.
• One can insert or delete the position in the edited text using the ◄ / ► keys
pressed together with <Alt>.
Inactive parameters
If some functions or parameters are not available, positions in the menu or lists
of parameters linked with this function or parameter became inactive (their colour
becomes grey). For example, if Logger (path: <Menu> / Measurement / Logging
/ Logger Setup) is switched off, the Logger view mode is not active!
Help information
In most screens, the last line or several lines at the bottom of the screen contain help information. It informs
how to select or modify the parameter’s value, change the character in the text line etc.
SVAN 979 can be powered by one of the following sources:
• Four AA standard size internal batteries. In case of alkaline type, a new fully charged set can operate
more than 12 h (6.0 V / 1.6 Ah). Instead of the ordinary, four AA rechargeable batteries can be used (a
separate external charger is required for charging them). In this case, using the best NiMH type, the
operation time can be increased up to 16 h (4.8 V / 2.6 Ah)
• External DC power source – 6 V DC÷24 V DC (1.5 W)
• SA 17A external battery pack – operation time > 24 h (option)
• USB interface – 500 mA HUB
For each power source, there is a different view presented in the Battery screen of the Instrument list.
When the instrument is powered from its internal batteries, the “battery” icon is presented on the top line of the
display. When the voltage of the batteries is too low for reliable measurements, the icon is red or during attempt
to switch the instrument on, the Low Battery! message occurs on the display for 2 seconds and the instrument
switches itself off. A fully charged set of 4 batteries ensures more than 12 hours of continuous operation of the
instrument (with display Dim switched on). The battery condition can be checked by means of the Battery
function. It is also presented continuously on the top line of the display by means of the “battery” icon.
When the instrument is powered from the
internal batteries, the “battery” icon is
displayed on the top of the screen and the
Battery screen presents the battery status
scale and battery voltage: Voltage: x.xxV.
The colour of the battery and the scale reflects
the battery capacity: green (>75%), yellow
(>25%), red (<25%).
To have right indication of the battery status, select the battery type in the Type position: Alkaline or
Rechargeable.
Note: In case the “battery” icon is red, it is strongly recommended to use an external power adapter
or USB interface as soon as possible to ensure reliable operation. If no suitable external power
source is provided the instrument will be switched off automatically after a short time!
Extension of the internal source of the instrument’s power can be achieved by reducing the brightness of the
screen when possible. The settings of Brightness and power saver function may be done in the Screen Setup
screen (path: <Menu> / Display / Screen Setup).
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