Model 702i and 711i
Technical Manual
Section 2
Ludlum Measurements, Inc.
2-4
December 2018
In other contexts, red is used to signal bad conditions (dead battery, calibration failure,
dangerous dose rate); yellow and orange indicate concern (battery nearing end of life,
calibration incomplete); and green indicates everything is normal (battery good, calibration
done, OK to ID).
Soft keys are always displayed at the very bottom of the screen in shades of black and white.
In most cases, where possible, small arrows are shown on the currently selected item to
indicate possible choices. For example, on a selected menu tab, you can go L
EFT
or R
IGHT
or D
OWN
into the menu. For some menu items, you may be able to use L
EFT
and R
IGHT
to
change the value. Two examples are shown here.
Different colors are used to group the items in each of the main menus. All sub-menus (the
menus that come up within an operation selected from the menu system) are displayed in
shades of gray and white. The shading serves to remind you that if you exit from this menu
with the B
ACK
key, it will only take you back to the higher level menu.
Self-Test and Data Screen
When the Model 702i or 711i unit is first powered on, you will see a screen that shows the results of
an initial power-on self test, or “POST.” A properly functioning unit will have a display similar to
that shown in Figure 3. The internal case temperature may vary, and your estimated battery life will
change as batteries are charged and discharged. Press E
NTER
to continue to the log-in screen.
Figure 3 - Successful POST Screen
