Device Operation - TESTO 300 XXL Instruction Manual

System description

Device operation

The analyser measurement box is controlled, read
and programmed using the control unit.
The operation of the testo 300 XXL is designed so
that the key functions are visible at all times on
the display.
The keypad
The function keys allow rapid changes of the
functions of the device and the overall control of
the measurement. The significance of the function
keys is indicated in the function bar. Not all
function keys are used in every menu. Arrows in
the function bar indicate further accessible
functions in the menu. When the right
left cursor key is pressed, these additional
functions are displayed and can be activated with
the function key.
With the up /down
can browse between the reading windows (in the
measurement menu) or select a menu item in a
list. When you have reached the last
window/menu item, the device automatically loops
back to the first window or the first menu item.
With the Browse
the measurement menu to the main menu or from
a submenu to the measurement menu.
The I/O button switches the device on and off.
With the Cancel
selected procedures or a chosen selection and exit
submenus. When you exit a submenu, you will
always move one menu window backwards until
you reach the main menu.
With the Acknowledge
the execution of the selected function is accepted.
If the key is pressed in the measurement
menu, the menu "Device selection list" appears.
The menu provides information on which device is
in use. 001=Control unit active, 002=Analyser box
active etc. If an analyser box is connected, this is
indicated automatically in the window when the
device is started.
With the Lighting key
can be switched on and off or the automatic timer
can be started.
10
cursor keys, you
key, you can branch from
key, you can terminate
key, the selection or
, the display lighting
The display
The display constantly shows all important
information.
In the Reading/Menu display area, 6 readings
per window are indicated in the measurement
menu. Only three readings are indicated in larger
lettering when the zoom function is used (by
function key).
The function bar indicates the significance of the
individual function keys
change according to the menu. The description of
the function keys changes accordingly on the
or
display.
The function bar can be assigned as desired to
all functions of the function menu. When the key
is pressed together with a function key, the
function menu opens. The entries in the function
menu change according to the connected
components of the measuring system.
The Operation display provides a graphic de-
scription of the current mode of the device, e.g.
whether the pump of the device is running and if
the device is running in mains operation.
The Location box constantly shows whether and
which location hasn't been selected and is active.
If no location has been selected, "NONAME"
appears on the display.
In the measurement menu, the Reading window
on the right indicates the measured value window
in which you are currently working, e.g. 2/5
indicates that you are working in the second of 5
possible pages.
Errors are indicated on the display as soon as they
occur. The "!" symbol in the status display often
indicates the occurrence of errors.
The touchscreen function (option) allows
direct access to the functions indicated on the
display using a special pen. A brief
touch is sufficient to activate the function.
. Their effects can