ABB STT04 Instruction Manual page 228

TB82 TRANSMITTER
Table N-1. Problem Codes of TB82 Transmitter
Code Description
LO.T.AD Shorted temperature sensor Verify process conditions are within transmitter range. PV must
LO.TEMP Temperature below
transmitter range
NO.F.CAL Missing factory calibration
and functional SEEPROM
OPEN Open sensor cable or
sensor out of solution
PV.CHKS Incorrect or missing PV
checksum
PROBLEM AND ERROR CODES (TB82)
N - 22
Corrective Action
be within transmitter range.
Verify process conditions are within configured output range. If
PV is outside configured range, increase output range.
Verify sensor wiring connections.
Remove any liquids, oils, scales or corrosion from transmitter ter-
minal block or extension cable junction box terminals.
Clean sensor and perform buffer and process calibration.
Conduct temperature calibration. If not using temperature sen-
sor, verify configuration for TMP.SNS is NONE.
Electronically test sensor and temperature compensator (refer to
the product instruction). Replace sensor if it does not meet
requirements.
Replace pH/ORP/pION input PCB assembly.
Verify process conditions are within transmitter range. PV must
be within transmitter range.
Verify process conditions are within configured output range. If
PV is outside configured range, increase output range.
Verify sensor wiring connections.
Remove any liquids, oils, scales or corrosion from transmitter ter-
minal block or extension cable junction box terminals.
Clean sensor and perform a buffer and process calibration.
Conduct a temperature calibration. If not using temperature sen-
sor, verify configuration for TMP.SNS is NONE.
Electronically test sensor and temperature compensator (refer to
the product instruction). Replace sensor if it does not meet
requirements.
Contact ABB for factory calibration procedure. Calibrate sensor
for short-term usage until factory calibration can be performed.
Verify sensor wiring connections.
Verify sensor does not have any exposed wire from nicks, etc. If
it does, repair (if possible) or replace.
Remove any liquids, oils, scales or corrosion from transmitter ter-
minal block or extension cable junction box terminals.
Verify sensor responds to pH buffers. Replace sensor and/or
sensor extension cable (if present) if sensor does not respond.
Electronically test sensor (refer to the product instruction).
Replace if it does not meet requirements.
Cycle transmitter power.
Remove transmitter from installed location and relocate to
noise-free environment. If problem does not appear, transmitter
needs new final location or additional shielding on transmitter
and/or wiring.
Contact ABB.
(continued)