Teledyne LXT-280 - Manual (Page 22)

Operation LXT-280
Teledyne Analytical Instruments 12
These keys also perform numeric adjustments to display values
while in the calibrate mode. Magnetically activating the UP
▲vertical arrow key will increase the value; magnetically
activating the DOWN ▼ vertical arrow key will decrease the
value.
2. HORIZONTAL LEFT/RIGHT (◄/►) Arrow Keys
The RIGHT and LEFT arrows are used to enter the calibrate
mode. To enter the calibrate mode, magnetically activate the
RIGHT ► horizontal arrow key. Once in the calibrate mode, the
cursor can be positioned by magnetically activating the RIGHT
or the LEFT horizontal arrow key. To exit the calibrate mode,
magnetically activate LEFT ◄ horizontal arrow key until the
cursor is all the way to the left.
These keys are also used to move the cursor horizontally.
3.2 Menus
The LXT-280 contains a series of menus from which different
functions can be accessed. You can scroll through all available menus
by activating the VERTICAL ▲ and ▼ keys.
The menus available in the LXT-280 instrument configured for
dissolved oxygen transmitters are shown in Figure 3-2.
When the instrument is first powered up, a copyright display will
appear for a few seconds. This screen displays the serial number and
software version for your instrument. After a few seconds the display
changes to the main menu . The Copyright Display provides the
software "version" number (2.20) and the software serial number (67).
Teledyne will require this information if software updates are to be
performed.
To access any of the menus listed below, magnetically activate the
desired vertical arrow key with an instrument magnet.
S/N 18 V 2.23
(C)TI/TAI 2006