Process Alarm
This menu allows the complete configuration of the analog 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 lower than the Low Saturation limit and the High Alarm limit must be higher than the
High Saturation limit.
2 6 6 DDS H A RT |
P R E SSU R E T R A N SM I T T ER S | O I/ 2 6 6 D DS - EN R E V. B
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Summary of Contents for 266 DDS
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Page 34: ...Display 34 266 DDS HART PRESSURE TR ANSMITTERS OI 266DDS EN REV B ...
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Page 41: ...Device Info 266 DDS HART PRESSURE TR ANSMITTERS OI 266DDS EN REV B 41 ...
Page 42: ...Communication 42 266 DDS HART PRESSURE TR ANSMITTERS OI 266DDS EN REV B ...
Page 59: ...266 DDS HART PRESSURE TR ANSMITTERS OI 266DDS EN REV B 59 Notes ...
