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Model U-1400 Operations Manual Rev Apr 2020 Page
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displays as solid green, the Vital Input is activated (high voltage level). When the LED displays as solid red, the
Vital Input has failed its self-check.
5.7
PRIMARY VITAL OUTPUT (VITAL OUT) STATUS / FAIL INDICATIONS
Each of the four Primary Vital Outputs has a dual color (green / red) LED which illuminates in various ways to
indicate the state of the Primary Vital Output. When the LED is off, the Primary Vital Output is deactivated (low
voltage level). When the LED displays as solid green, the Primary Vital Output is activated (high voltage level).
When the LED displays as a two Hz flashing green, timing delay is activated and the Primary Vital Output is
functioning (low voltage level until delay times out). When the LED displays as a five Hz flashing green, timing
extension is activated and the Primary Vital Output is functioning (low voltage level until extension times out).
When the LED displays as solid red, the Primary Vital Output has failed its self-check.
5.8
AUXILIARY VITAL OUTPUT (VITAL AUX) STATUS / FAIL INDICATIONS
Each of the four Auxiliary Vital Outputs has a dual color (green / red) LED that illuminates in various ways to
indicate the state of the Auxiliary Vital Output. When the LED is off, the Auxiliary Vital Output is deactivated
(low voltage level). When the LED displays as solid green, the Auxiliary Vital Output is activated (high voltage
level). When the LED displays as solid red, the Auxiliary Vital Output has failed its self-check.
5.9
SYNCH FAIL INDICATIONS
5.9.1
SERIES SYNCH FAIL INDICATIONS
When the Synch feature is set to operate in Series Synch mode (Option 7 is set to 7.01), the
LCD will display
SYS
. If, after completing the sampling routine, the detector determines
there is a failure on one or more loop inputs, the LCD will display
FSY
and continue
sampling. If the Synch failure is cleared, the fail indication (
FSY
) will no longer be displayed
on the LCD.
5.9.2
PARALLEL SYNCH FAIL INDICATIONS
When the Synch feature is set to operate in Parallel Synch mode (Option 7 is set to 7.02), the
LCD will display
SYP
If, after completing the sampling routine, the detector determines there
is a failure on one or more loop inputs, the LCD will display
FSY
and continue sampling. If
the Synch failure is cleared, the fail indication (
FSY
) will no longer be displayed on the LCD.
©
Series
Synch Mode
Failure
Indication
©
Parallel
Synch Mode
Failure
Indication
