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Reference Manual
00809-0100-4530, Rev BA
July 2009
Rosemount 5300 Series
5-10
Alarm Mode
The Alarm mode specifies the analog output state when there is a failure or a
measurement error:
High: the output current is set to the High Alarm Limit.
Low: the output current is set to the Low Alarm Limit.
Freeze Current: the output current is set to the last valid value at the time
when the error occurs.
Default settings for alarm mode:
• Measurement errors: Output current=High.
• Measured value out of range: transmitter enters saturation mode (if
Limit Alarm is disabled).
Table 5-2. Analog Output:
Standard Alarm Values vs.
Saturation Values
Table 5-3. Analog Output:
NAMUR-Compliant Alarm
Values vs. Saturation Values
Level 4–20 mA Saturation Values 4–20 mA Alarm Value
Low 3.9 mA 3.75 mA
High 20.8 mA 21.75 mA
Level 4–20 mA Saturation Values 4–20 mA Alarm Value
Low 3.8 mA 3.6 mA
High 20.5 mA 22.5 mA