Operation manual, Troubleshooting – Class1 114356 - ITL 4LT with 1-wire and CAN COM 113739 114378 User Manual
Page 19

FORM-ENG-0018 REV A 05-27-03
PAGE
18 of 22
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
DATE
10/23/2007
PRODUCT GROUP
ITL
P/N
12V: 113739 ; 24V: 114378
REV
1.20
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
PRODUCT
4 LIGHT INTELLI-TANK DISPLAY WITH 1-wire and CAN
BY
AMS
DATASHEET
P/N:114356 -
UNCONTROLLED
IN
PRINTED
FORMAT
-
P
RINTED
:
10/24/07
7.6. System compatibility
The ITL display is compatible with other Class 1 CAN and 1-wire products.
7.6.1. 1-wire
compatibility
An ITL display configured with 1-wire communication is compatible with the 4 light remote driver module (p/n
106877), Pump input sensor module (p/n 111097), mini remote driver module (p/n 112648), mini remote dash
gauge (p/n 112649), and all older 4 and 5 light ITL displays (p/n 106299, 106296, 108858, 108859).
7.6.2. CAN
compatibility
The ITL display configured with CAN communications is compatible with the Command Master (p/n 111084,
111085, 111086), Pump input sensor module (p/n 111097), and future Class 1 ES-Key CAN products.
8. Troubleshooting
8.1. Evaluation
table
Condition
Visual
Evaluate
Bottom two LEDs
alternate flashing.
Unit fails self test, LED 1
flashing.
Check transducer wiring. Ensure +5V at pin A, ground at pin B and at least .4V at
pin C (Signal).
Top two LEDs alternate
flashing.
Unit fails self test, LED 1
on.
Check transducer wiring. Ensure +5V at pin A, ground at pin B and no more than
4.8V at pin C (Signal).
Middle two LEDs
alternate flashing.
Perform self test. If it fails with LED 3 on replace display.
Outer two LEDs
alternate flashing.
Try to recalibrate. If condition remains, check if transducer signal voltage (pin C)
changes as tank level increases. If it doesn’t, replace transducer. If it does, verify
depth of tank. It may be impossible to calibrate a tank with a depth of less than 6
inches.
Bottom two and Upper
two LEDs alternate
flashing.
The display is configured as a Remote. Recalibrate if a Master is required. If the
display is required to be a Remote check Data line(s) (Pin 4, 5) continuity and
insure line(s) is(are) not grounded.
No LEDS on.
Check power (Pin 1) and ground (Pin 2) connection.