The above example shows the edition of the
file name, which may consist only uppercase
letters. Some texts can be written with the
lowercase letters and use special characters.
In such cases, the keyboard can be switched
with the use of ▲ or ▼ push-buttons pressed
together with <Shift>.
Help information
In most windows the last line or several lines at the bottom of the screen contain help information. It informs the
user how to select or modify the parameter’s value, change the character in the text line etc.
3.2. Powering of the instrument
The SVAN 974 can be powered by one of the following sources:
• Four AA standard size internal batteries. In case of alkaline type, with a new fully charged set, the
instrument can operate more than 12 h (6.0 V / 1.6 Ah). Instead of the ordinary alkaline cells, 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)
• USB interface – 500 mA HUB
For each of possible power source there is a different view presented in the Battery window 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 off by itself. 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 there is a connection to the USB interface (USB Device socket is
connected by means of the cable to a PC), the “computer” icon is presented
on the top of the display and in the Battery window there is the USB Power:
Voltage: x.xxV message.
When the instrument is powered from the
internal batteries, the “battery” icon is
displayed on the top of the screen and the
Battery window 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 the user should select the battery type in the Type position: Alkaline
or Rechargeable.
Note: In case when “Battery” icon is red it is strongly recommended to use an USB interface as soon
as possible to ensure reliable operation. If no USB source is provided the instrument will be switched
off automatically after a short time!
Prolonging 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
window (path: <Menu> / Display / Screen Setup).
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