Instruction manual

113
Faulty level switch or transmitter wiring. Correct wiring. Make sure that the level sensor
is attached to the same input as the one which
is defined for that drum in the Level Input
Page.
Incorrect setting of “Drum empty when Go to the “Level Input Page and verify that the
switch is open/closed” menu. “Drum empty when switch is” menu is set for
the proper selection. You can check the
operation of the switch by measuring between
the two wires with an ohmmeter. If there is
continuity between the wires when the float is
all the way down, the select “closed”.
Incorrect setting of the “Empty mA” menu. Go to the Level Input Page and make sure that
the Empty mA setting matches the actual mA
of the transmitter when the tank is empty.
Faulty digital input option circuit board. If the switch is functioning, and it is wired
correctly, and the settings are correct, replace
the digital input board.
Faulty 4-20 mA input option circuit board. If the level transmitter is putting out a mA
signal above the low alarm limit (as measured
by an ammeter) and is wired correctly, replace
the 4-20 mA input option board.
Pump Failure (one for each monitored)
This error message appears if contact closures from the PosiFlow flow monitor are expected but
are not detected by the digital input option circuit board.
Possible Causes Corrective Actions
Metering pump has lost prime. Re-prime metering pump.
Faulty metering pump. Repair or replace metering pump.
Faulty metering pump wiring. Correct wiring.
Faulty PosiFlow wiring. Correct wiring. Make sure that digital input
the PosiFlow is connected to is defined as the
expected pump PosiFlow input in the
PosiFlow Page.
Faulty PosiFlow sensor. Replace PosiFlow sensor.
Blown fuse. Replace fuse F3 for feed or biocides, F2 for
pH, ORP or dispersant)
Faulty output relay. Replace relay interface board.
Faulty digital input option circuit board. Verify that PosiFlow is making contact
closures using an ohmmeter. If OK, and
connected properly, replace digital input
option board.