Garnet SEELEVEL II 709-4LP, Manual

Page: 14 / 24

Page 14 7094LP Manual
7. For tanks greater than 13” tall, two stacked senders are used.
The sender ends should be 1/4” to 3/4” away from the top
and bottom of the tank, to allow for the thickness of the tank
top and bottom and any bows in them (see the diagrams).
The senders are calibrated to account for this distance from
the bottom of the tank. In addition, there needs to be a gap
of 1/16” to 1/8” to between the two senders. Therefore total
length of both senders will be: tank height -1/4”-1/4”-1/8”,
then rounded down to the nearest 1.5 inches. The top and
bottom senders should be approximately the same length for
best results. For example, if the tank height is 22”, then 22”-
1/4”-1/4”-1/8”=21 3/8”, so the total length of both senders
will be 21 inches. Make both senders 10.5” long.
8. To make the senders the right length (assuming they are too
long) they will need to cut off with a pair of scissors. The end
to be cut is the bottom end, which is the opposite end from
the top where the wires come out (see the diagrams). DO
NOT cut the sides, and DO NOT cut the sender shorter than
4-1/2 inches. The cut must be in between the sensor pads,
and the cut must be made parallel to the existing bottom
end. Double check your measurements, if the sender is cut
too short, it cannot be lengthened.
9. The senders need to be programmed so they know which tank
they are on. This is done by selectively cutting off the tabs
on the top of the sender. See the chapter entitled “SENDER
PROGRAMMING” and the section “To program the sender
for the correct tank” for details.
10. For two stacked sender systems, the senders need to be
programmed so they know that they are being used as
top or bottom senders. See the chapter entitled “SENDER
PROGRAMMING” and the section “To program the sender
as top or bottom” for details.
11. Once the sender is cut to length and programmed, carefully
peel the backing paper off the adhesive. Do this slowly to
prevent the adhesive from being ripped off the sender, and
to prevent the backing paper from ripping. Be careful not to
bend the sender sharply in the process. Position the sender
over the side of the tank and carefully stick it down. MAKE
SURE THAT THE END WITH WIRES IS POINTING UP!! Position
the bottom of the sender at least 1/4” above the bottom of
the tank, and more if required to equalize the space at the top
and bottom of the tank. Make sure that the sender is square
with the tank. You only have one shot at this, if you try to peel
it off the tank once it is stuck the sender may be damaged by
the sharp bending. Carefully press the sender down to the
tank so that all of the adhesive is contacting the tank wall.