10
Empty
a
Tank
with
a
Pump
or
Valve
The
relays
can
also
be
used
to
automatically
empty
a
tank
when
the
level
inside
gets
too
high.
To
set
the
sensor
to
automatically
empty
a
tank:
1)
Press
and
hold
SELECT
for
5
seconds
to
enter
TOP
‐
LEVEL
MENU.
2)
Select
RELAY1,
RELAY2
or
RELAY3.
3)
Select
PUMP
or
VALVE
(
SAVED
appears).
4)
Select
EMPTY
(
SAVED
appears).
5)
Select
ON.
6)
Use
the
UP
and
DOWN
buttons
to
set
the
ON
set
point
for
the
relay.
This
is
the
higher
of
the
two
set
points.
To
enter
value,
press
and
hold
SELECT
for
2
seconds
and
release.
SAVED
will
display.
7)
Select
OFF.
8)
Use
the
UP
and
DOWN
buttons
to
set
the
OFF
set
point
for
the
relay.
This
is
the
lower
of
the
two
set
points.
To
enter
value,
press
and
hold
SELECT
for
2
seconds
and
release.
SAVED
will
display.
If
you
wish
to
add
a
delay
when
the
pump
starts,
continue
to
step
9.
Otherwise,
select
EXIT
to
return
to
the
TOP
‐
LEVEL
MENU.
9)
Select
DELAY
.
10)
Using
the
UP
and
DOWN
buttons,
set
the
DELAY
time
in
seconds.
This
pump
delay
can
range
from
0
to
600
seconds.
To
enter
value,
press
and
hold
SELECT
for
2
seconds
and
release.
SAVED
will
display.
11)
Select
EXIT
to
return
to
the
TOP
‐
LEVEL
MENU.
