Garnet SEELEVEL II 709-LL Manual page 17

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.
13. Do steps 4 to 12 for the other two holding tanks.
14. Connect all the blue wires from the senders together, and to
the blue wire from the display. Connect the black wire from
each sender to ground at the display. It is very important
that the display and the senders have the same ground. Use
crimp on butt connectors to fasten the wires together. Make
sure that the wires from the sender are routed to the RIGHT
side of the sender, away from the sender. NEVER route the
wires to the left of the sender. If they drape over the sender
they could affect the reading. Secure the wires with tie wraps
or something similar so that the wires do not rattle or press
against the sender, this may result in sender damage or wires
breaking over time. Refer to the enclosed wiring diagrams.
15. All that remains now is calibration and testing. The tank
senders will self calibrate to whatever length they are cut, so
they will always read from 0 to 100%. The display needs to
be set to a one or two sender system for each tank. See the
chapter entitled "DISPLAY CALIBRATION" and the section
"To calibrate the number of senders for each tank" for
details. Make sure you do it for each tank.
16. For the initial test, have the tank at least 1/4 full of water or
sewage, and verify that the percent level reading looks correct
(see the chapter entitled "OPERATING INSTRUCTIONS"
and the section "To read a water or sewer tank level" for
details). Check to see that the signal power is at least 20%
(see the chapter entitled "TROUBLESHOOTING GUIDE"
and the section "To review the sender diagnostics" for
details). If the signal power is too low, make sure that the
sender(s) is well stuck to the side of the tank and that the
tank is reasonably clean inside, as a large buildup will reduce
signal strength. The gauge will work with maximum signal
strengths as low as 20%, but it is good to have at least 50-
60% at installation so that there is some margin available for
709-LL Manual
Page 17