62
Reference Manual
00809-0100-4001, Rev JA
Section 3: Configuration
November 2012
3.11.2
Alarm and saturation levels for burst mode
Transmitters set to burst mode handle saturation and alarm conditions differently.
Alarm conditions:
Analog output switches to alarm value
Primary variable is burst with a status bit set
Percent of range follows primary variable
Temperature is burst with a status bit set
Saturation:
Analog output switches to saturation value
Primary variable is burst normally
Temperature is burst normally
3.11.3
Alarm and saturation values for multidrop mode
Transmitters set to multidrop mode handle saturation and alarm conditions differently.
Alarm conditions:
Primary variable is sent with a status bit set
Percent of range follows primary variable
Temperature is sent with a status bit set
Saturation:
Primary variable is sent normally
Temperature is sent normally
3.11.4
Alarm level verification
If the transmitter electronics board, sensor module, or LCD display is repaired or replaced, verify
the transmitter alarm level before returning the transmitter to service. This feature is also useful
in testing the reaction of the control system to a transmitter in an alarm state. To verify the
transmitter alarm values, perform a loop test and set the transmitter output to the alarm value
(see Tables
, and
).
3.12
Diagnostics and service
Diagnostics and service functions listed below are primarily for use after field installation. The
Loop Test feature is designed to verify proper loop wiring and transmitter output.
3.12.1
Loop test
The Loop Test command verifies the output of the transmitter, the integrity of the loop, and the
operations of any recorders or similar devices installed in the loop.
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