4210 Flow Meter
Section 2 Programming
2-24
KEYPRESS TIMEOUT will cause the backlight to be turned on
whenever you press a key on the keypad. An internal timer is
started that will keep the backlight on for approximately two
minutes after you press a key. Each time you press a key, the
timer is restarted, so the backlight will never go off as long as
you continue to program the flow meter, with keystrokes less
than two minutes apart. At the end of programming, the back-
light will go out, and will stay off until you start to program
again. This feature is designed to conserve battery power by
de-energizing the backlight when it is not needed. The backlight
is still available if it is necessary to program in a dark envi-
ronment, such as in a manhole. We recommend using this
selection if the flow meter is battery-powered, but installed in an
environment where the lighting is poor.
CONTINUOUS will light the backlight continuously. Where the
flow meter is powered by an AC power supply, battery life consid-
erations do not intervene. If the backlight makes the display
easier to read, use it. Do not use CONTINUOUS in any instal-
lation that is battery-powered, as it will cause rapid discharge of
the battery.
OFF will keep the backlight feature turned off under all circum-
stances. Select this option for maximum battery life in installa-
tions where there is sufficient ambient light to read the display
without the backlight feature. The SETUP menu will return.
Language – This time, move the flashing cursor from LCD
BACKLIGHT to LANGUAGE.
When LANGUAGE appears on your display, you may select an
alternate language to program the flow meter. The other lan-
guage depends on how the flow meter was ordered. The following
display will appear:
Select the language appropriate for your application. The menus
and the printed reports will appear in the selected language. The
SETUP menu will reappear.
Program Lock – This time, select PROGRAM LOCK from the
menu.
PROGRAM LOCK prevents the program from being changed.
Select OFF while you are programming, and then go back and
select ON if you need to lock the program. We suggest using the
lock only if there are compelling security reasons. Further
changes will require entry of the password, which is the model
number for whatever flow meter you are using, for example,
enter 4-2-1-0 for the 4210. If you select ON, there is a time-out
before the lock engages. If you continue to work through the rest
of the program, the lock will not engage until you are done. But if
you stop programming longer than two minutes, the lock will
engage, and you will not be able to make any further program
changes.
LANGUAGE
• ENGLISH • • (second language, as ordered) •
PROGRAM LOCK
• ON • • OFF •
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