Garnet SEELEVEL II 709-4LP, Руководство пользователя

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Page 16 7094LP Manual
12. 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. Use Marrette or crimp connectors to
fasten the wires together. Make sure that the wires from the
sender are routed away from 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.
13. Do steps 4 to 12 for the other two holding tanks.
14. 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.
15. 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 12%
(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 5%, but it is good to have at least 12% at installation
so that there is some margin available for buildup in the tank.
Note that the system “learns” about the characteristics of the
tank with use, so the readings may be inaccurate when the
tank is empty or almost empty when the system is first tested.
Once the tank has been filled at least 1/4 full the system will
be properly “taught” and should read correctly after that.
16. Verify that the battery voltage reads correctly. If it appears
low, make sure you have good wiring for the 12 volt power
and the ground.