Onicon FT-3500 - Page 59

FT
-
3500 ELECTROMAGNETIC FLOW METER
ONICON Incorporated 727.447.6140 Page 59 onicon.com
ALERT POTENTIAL ISSUE POSSIBLE SOLUTION
“Error Elec 2 Bad DC Oset” Persistent invalid reading - electrode 2 • Power o the unit, and check all wires are
connected per the wiring label on the lid
• Remove the terminal block on TB9 ELEC2.
• Check continuity on cable yellow and orange.
(conrm the meter sensor is on water)
• If there is no continuity. Go to the sensor and
open its enclosure, remove terminal P3 ELEC2,
and measure continuity on pins C and D.
• If there is no continuity, carefully remove the
terminal board of the sensor and check if
all cables are connected on the back of the
board.
• If any cable is corrected during the continuity
test, power on the unit and check the error, it
should disappear.
• If the cables are connected, contact ONICON.
RMA need (possible bad stem)
“Error Elec 1/2 Di OutRange” Electrode 1 and 2 readings dier too greatly Perform the steps on the previous alarm. This alarm is
present when one of the electrodes is not behaving on
average with the other electrode.
“Error Elec 1 Disconnected” Erroneous zero ow condition detected -
electrode 1 (requires ow)
• Power o the unit
• Conrm the cable coming from the sensor
is connected per the wiring diagram on the
transmitter lid.
• Conrm the wires at the sensor are connected per
the wiring diagram on the enclosure lid.
carefully remove the terminal board of the sensor
and check if all cables are connected to the back
of the board.
• If all the wires are connected as per the wiring
diagrams, carefully remove the terminal
board of the sensor and check if all cables are
connected on the back of the board.
• If any cable is corrected during the continuity
test, power on the unit and check the error, it
should disappear.
• If the cables are connected, contact ONICON.
RMA need
“Error Elec 2 Disconnected” Erroneous zero ow condition detected -
electrode 2 (requires ow)
“Error Elec 1 or 2 Wired Backwards” Flow direction dierence detected (requires
ow)
“Comm Board Fail” Meter unable to communicate with Comm Board • Conrm the meter has a communication board
and that it is seated properly. (If no communication
board is needed. set network setting to none on
the user conguration menu
• Conrm the communication board has a solid
white LED light on. if it is o, a replacement is
needed.
• If the problem persists, contact ONICON support