What to do if the ABB Transmitter shows 'AO SATURATED'?
If the ABB Transmitter displays 'AO SATURATED', it means the process variable is outside of its range. First, check the sensor connection to the transmitter to ensure it's properly connected. Also, verify that the transmitter range is suitable for the application. If the problem persists, consider performing a D/A adjustment.
Why does my ABB Transmitter say 'CAL OFFSET WARNING'?
The 'CAL OFFSET WARNING' on your ABB Transmitter indicates a large sensor offset. Clean the sensor and perform buffer and process calibration. Inspect the sensor and cabling for shorts, removing any potential shorts to ground or metals. If the sensor is functioning properly but the transmitter still doesn't accept calibration values, consider ordering a spare sensor for replacement.
What does 'CALIBRATION FAILED HIGH/LOW' mean on my ABB Transmitter?
The error message 'CALIBRATION FAILED HIGH/LOW' on your ABB Transmitter means that the calibration signal you applied is outside the allowable factory limits. You should calibrate the transmitter again, making sure that the supplied signals are within the transmitter's specified limits.
What does it mean when my ABB STT04 Transmitter displays 'AMBIENT TEMP HIGH'?
If your ABB Transmitter displays 'AMBIENT TEMP HIGH', it means the temperature inside the electronics housing is too high (exceeds 85°C or 185°F). You need to identify and remove the source of the excessive temperature.
What to do if my ABB Transmitter shows 'CELL TEMP OVR/ UNDR ALARM'?
If the ABB Transmitter shows a 'CELL TEMP OVR/ UNDR ALARM', it means the cell temperature is outside of the user-defined alarm limits. Correct the temperature issue. Also, you can change the alarm value.
What does it mean when my ABB STT04 says 'CALIBRATION REQUIRED'?
The message 'CALIBRATION REQUIRED' on your ABB Transmitter indicates that the field device needs calibration.
What to do if my ABB STT04 displays 'CELL EEPROM FAILURE'?
If your ABB Transmitter is displaying 'CELL EEPROM FAILURE', this indicates a memory problem. Try removing power from the field device and then reapplying it. If the problem continues, replace the amplifier assembly.
What causes 'A/D HIGH REF FAIL' in ABB STT04 Transmitter and how to fix it?
The 'A/D HIGH REF FAIL' error in your ABB Transmitter is due to a reference problem on the circuit board. Replace the amplifier assembly. If the problem persists, replace the cell and characterization board.
What causes 'A/D LOW REF FAIL' in ABB STT04 and how to fix it?
The 'A/D LOW REF FAIL' error in your ABB Transmitter is due to a reference problem on the circuit board. Replace the amplifier assembly. If the problem persists, replace the cell and characterization board.
Overview of the STT04 Smart Transmitter Terminal.
Procedure for calibrating pressure sensors including full, zero, factory, and static trims.
Procedure for adjusting the four to 20 milliampere output using arrow keys or meter value entry.
Lists possible error messages displayed on the STT04 terminal with their probable causes.
Details the calibration functions for the STT04 terminal when interfacing with a Smart Positioner.
General| Type | Temperature Transmitter |
|---|---|
| Communication Protocol | HART |
| Input | RTD, Thermocouple, mV |
| Output | 4-20 mA, HART |
| Accuracy | ±0.1% of span |
| Temperature Range | Depends on sensor type |
| Ambient Temperature Range | -40 to 85°C |
| Housing Material | Aluminum |
| Protection | IP66 |
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