Instruction manual

115
“Other 4-20 mA Input” High Alarm (one for each, use name defined)
This error message is caused by the 4-20 mA signal from a device other than a level transmitter,
water meter, or corrosion monitor exceeding the user-programmed value for the high alarm limit.
Possible Causes Corrective Actions
The process value being measured by the Determine the reason for the out of spec
transmitter is out of specifications condition.
.
The high alarm limit for the process being Increase the high limit in the Other 4-20 mA
measured is set too low. Input Page.
There is a problem with the transmitter that
needs to be addressed by the manufacturer of
the transmitter.
“Other 4-20 mA Input” Low Alarm (one for each, use name defined)
This error message is caused by the 4-20 mA signal from a device other than a level transmitter,
water meter, or corrosion monitor being lower than the user-programmed value for the low alarm
limit.
Possible Causes Corrective Actions
The process value being measured by the Determine the reason for the out of spec
transmitter is out of specifications. condition.
The low alarm limit for the process being Decrease the low limit in the Other 4-20 mA
measured is set too high. Input Page.
There is a problem with the transmitter that
needs to be addressed by the manufacturer of
the transmitter.
Conductivity Sensor Error (System or Makeup)
This error message is caused by the signal from the conductivity sensor being outside of the
normal range (input voltage outside –1.45 VDC to +1.45 VDC or a conductivity reading above
32,000 microS/cm). The bleed relay will be forced off. .
Possible Causes Corrective Actions
The conductivity is extremely high Go to the Conductivity Input Page and check
(over 32,000 µS/cm). the uncalibrated conductivity reading. Compare
this to a calibrated hand held instrument.
Faulty sensor interface or sensor option Go to the Conductivity Input Page and
(if makeup conductivity) circuit board. perform
a self test. If this passes, then the problem is
with the sensor or its wiring. If it fails, then
disconnect the sensor from the circuit board
and try the self test again. If it still fails, replace
the circuit board.