Process Alarm - ABB 266 HART Series Operating Instruction

8 Operation

8.13.5 Process Alarm

This menu allows the complete configuration of the analogue output in case of saturation and alarm. The output signal will range
from 4 to 20 mA in case the process variable is within the calibrated span limits. In case the process variable (PV) will be below
the LRV (lower range value) the signal will be driven to the "Low Saturation" limit (which is configurable), in case the PV will be
above the URV (upper range value) the signal will be driven to the "High Saturation" limit (which is configurable too).
In case the transmitter diagnostic detects a failure the signal will be driven upscale or downscale according to the user
preferences (the failure direction is selected via the dip switch 4 and 5 on the communication board). The exact value to which the
signal will be driven can be configured via the above menu (Alarm limits). As a convention the Low Alarm limit must be < the Low
Saturation limit and the High Alarm limit must be > than the High Saturation limit.
2600T Series Pressure transmitters | OI/266/HART-EN Rev. M 49