User guide

Problem Problem Corrective Action
Code Text
String
I-E67-84-1B February,2002 14-2
PC6 HI.AO1 1) Verify process conditions are within configured
output range. If process variable is outside
configured range, increase output range.
2) Verify sensor wiring is properly connected.
3) Remove any liquids, oils, scales or corrosion from
TB84PH terminal block or extension cable junction
box terminals. Replace extension cable if
corrosion is present.
4) Clean sensor and perform a buffer and process
calibration.
5) Conduct a temperature calibration. If a
temperature sensor is not being used, verify the
analyzer is configured for TMP.SNS “NONE”.
6) Electronically test the sensor and temperature
compensator. Replace sensor if sensor does not
meet requirements.
PC7 LO.AO2 1) See PC6 corrective actions.
PC8 HI.PV 1) Verify process conditions are within analyzer
range. Process variable must be within analyzer
range.
2) Also See PC4 corrective actions.
PC9 LO.PV 1) See PC8 corrective actions.
PC10 HI.TEMP 1) Verify process conditions are within analyzer
range. Process variable must be within analyzer
range.
2) Also see PC6 corrective actions.
PC11 LO.TEMP 1) See PC10 corrective actions.
PC12 HI.T.AD 1) See PC10 corrective actions. If all items check
out, implement item 2.
2) Replace pH/ORP/pION Input PCB Assembly.
PC13 LO.T.AD 1) See PC12 corrective actions.
PC14 +HI.OFF 1) Clean Sensor and repeat buffer and/or process
calibration.
2) Inspect sensor and cabling for shorts. Remove all
potential shorts to ground, conduit or metal
surfaces.
3) If sensor is functioning properly, order a spare
sensor to replace the existing sensor. Replace
existing sensor with spare when analyzer does not
accept calibration values.
PC15 -HI.OFF 1) See PC14 corrective actions.
PC16 HI.EFF 1) Verify the proper buffer values were used for
calibration and repeat buffer calibration.
2) Clean sensor and repeat buffer calibration.