FloTech FT208 Mode D'emploi page 20

FloTech Programmable CheckMate Retain / Overfill Monitor
6. Open all the sensor caps and check each wiring connection.
Look for pinched wires that may short the sensor signal to
ground. Also, look for defective crimp connections.
7. Measure voltage across the failed sensor wires (Black to
Red). Voltage should measure 8-10 VDC.
8. If steps 6 and 7 check OK, replace the sensor with a
FloTech FT150.
NOTE: A quick test of the sensor can be accomplished by
connecting the sensor directly to the onboard monitor. Example:
Remove sensors wires from monitor ground (WHT) and the TOP
sensor 1 (BRN) and connect the sensor to be tested. If the sensor
is good the RED TOP #1 LED with NOT light. If the sensor is
defective the Diagnostic LED WILL light.
System will not load, has no green AUX LED and
no green PERMIT LED, power LED is lit and no
red sensor LEDs are lit.
1. Check the TB2 AUX input. This input must have a closed
switch or jumper connected to allow the monitor to load.
The AUX input has its own green LED. This LED must be
lit to send a permissive signal to the load rack.
2. Check to see if a jumper is connected to TB2 AUX. If TB2
AUX has no connections, add a jumper.
3. If TB2 AUX has a wire connection, follow the cable to the
switch. This switch is typically connected to a vapor
recovery interlock or to a brake air lines interlock. Activate
the switch and see if the AUX green LED is lit. If not
repair the air switch. If the air switch appears OK then
check the monitor by installing a jumper wire to force the
AUX LED on. If the Aux LED can‟t be forced on then
replace the monitor.
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