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FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
PRODUCT GROUP
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
PRODUCT
7.
Troubleshooting
7.1.
Evaluation table
Condition
Bottom two LEDs rows
alternate flashing.
Signal voltage too low
(less than 0.4 V).
Top two LED rows
alternate flashing.
Signal voltage too high
(greater than 4.8V).
Middle two LED rows
alternate flashing.
Memory error.
Outer two LED rows
alternate flashing.
Invalid calibration.
Bottom four and Upper
four LEDs rows alternate
flashing.
Not receiving data.
No LEDS on.
Master Tank level unit
does not change when
actual tank level is
changing.
Remote Tank level unit
does not follow Master
display.
MANUAL P/N:118253
S U I T A B L E F O R E X T E R N A L D I S T R I B U T I O N
OPERATION MANUAL
ITL40
Intelli-Tank Level 40
Visual
Check sensor wiring. Ensure +5V at pin A, ground at pin B and at least 0.4V at
pin C (Signal).
Use password LLRR LLRR to view sensor voltage on display.
Check sensor wiring. Ensure +5V at pin A, ground at pin B and no more than 4.8V
at pin C (Signal).
Use password LLRR LLRR to view sensor voltage on display.
Perform self test RLLR LLRR. If it shows "MEM-FAIL" replace display, otherwise
recalibrate or reset as REMOTE.
Try to recalibrate. If condition remains, check if the sensor signal voltage (pin C)
changes as tank level increases. If it doesn't, replace sensor. If it does, verify
depth of tank. It may be impossible to calibrate a tank with a depth of less than 6
inches.
The display is configured as a REMOTE. Recalibrate if a MASTER is required. If
the display is supposed to be a REMOTE check communication data lines for
continuity.
Check power (Pin 1) and ground (Pin 12) connection.
Check sensor wiring. Ensure sensor signal voltage (Pin C) is varying. If it does,
check for same signal changes at Pin 6 of tank level connector (if it is not the
No picture
same - repair wiring). If signal is good at both locations try re-calibrating.
Perform self test. If self test is good, verify communication data lines for
No picture
continuity. Insure 1-wire data line is not routed near noisy power or RF sources.
P/N
118404-XX
Evaluate
24 of 27
PAGE
DATE
6/12/2019
REV
1.30
BY
AMS
P
: 6/12/19
RINTED
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