your settings and to press the reset button (R) to run the program. If you select
no to the conrmation question the E30 takes you back to the beginning of the
menu to allow you to make any changes you require.
Note that you can enter the menu at any time the program is unlocked simply by
pressing the (P) button and you can step through the menu and make any change
you require and then exit back out of the menu and back into normal running just
by pressing the (R) reset button. You do not have to step right through the menu
to make changes to your settings. Your settings and any changes you make are
automatically updated as soon as you press the (R) reset button.
LCD Screen Back Light
The LCD screen on the E30 digital pressure switch has a built in backlight. The
backlight switches on automatically whenever you are programming the controller
and when the controller is displaying certain fault conditions. In normal operation
the backlight remains off.
The LCD screen backlight can be switched on manually at any time by pressing
and holding down the down arrow button. The screen will remain illuminated
while ever you are depressing the down button. The screen will switch off as soon
as you release the button. The LCD backlight can’t be permanently switched on,
it only operates while the down button is held in.
Program Lock
The E30 includes a hidden lock. When activated the lock disables the programming
button P, thus rendering the controller’s menu inaccessible.
To lock or unlock the E30 press the up and down buttons together while the pump
is in normal operation (not while it is being programmed). Pressing the up and
down buttons together while in normal running mode shuts the pump down and
opens the controller’s lock screen.
Once the lock screen is displayed the E30 can be locked or unlocked by pressing
the up or down buttons. Pressing P then exits the lock screen and the pressure
switch resumes normal operation. When locked, pressing the (P) button has no
effect on the E30 and does not take you into the menu in the usual way. Access
to the menu can then only be obtained by rst unlocking the (P) key.
17
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