Garnet SEELEVEL II 709-LL Manual page 14

in length, for example, a system with a tank height of 11.75
inches, cut the sender to be 10.5 inches long, this allows 5/8"
at each end when the sender is centered vertically on the
tank. The JS sender is cut to the nearest 1.0 inch in length.
IMPORTANT: Do not cut the 710ES sender shorter than 4-1/2
inches! The sender will not work if it is cut less than 4-1/2
inches. Do not cut the 710JS sender shorter than 4 inches!
The sender will not work if it is cut less than 4 inches.
8. For tanks greater than 13" tall, two stacked 710ES 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.
9. 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 710ES sender shorter
than 4-1/2 inches or the 710JS sender shorter than 4 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.
10. 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 710ES or
710JS sender for the correct tank" for details.
11. 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 710ES
sender as top or bottom" for details.
12. Once the sender is cut to length and programmed, do a test
by taping the sender to the tank wall. Make sure there are no
air gaps between the sender and the tank. Verify operation
before permanently sticking the sender to the tank wall.
Once proper operation has been confirmed, carefully peel the
Page 14 709-LL Manual