DR4300 Circular Chart Recorder
88 DR4300 Circular Chart Recorder Product Manual 4/00
Lower Display
Prompt
Upper Display
Range of Setting
or Selection
Parameter
Definition
BRNOUT
NONE [factory setting]
UP
DOWN
BURNOUT PROTECTION (INPUT FAILURE) provides most input
types with upscale or downscale protection if the input fails. Note
that if the input fails, error message “INP FL” will be on the lower
display.
ATTENTION
Refer to Subsection 4.5 for information about the
interaction of the value of this parameter and the setting of switch 2
on SW6.
NO BURNOUT—Failsafe output applied for failed input.
UPSCALE BURNOUT will make the indicated PV signal go to
overrange value when input fails. Control algorithm will use
overrange value when calculating output.
DOWNSCALE BURNOUT will make the indicated PV signal go to
underrange value when input fails. Control algorithm will use
underrange value when calculating output.
NOTE: For recorders with the FM Limit Approved Option the INPUT configuration does not provide a
burnout selection. However, if a HI limit is configured and the input opens, the input reading will go
Upscale and the lower display will alternate between: INP#, Limit, and INP FL.
If a LO limit is configured and the input opens, the input reading will go down scale and the lower display
will alternate between: INP#, Limit, and INP FL.
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