ATI Series D12 Toxic Gas Transmitter with H10 Smart Sensor
Revision N (7/15) 46
Next Auto Test
►09/14/06 09:00
>Menu>Setup>Auto-T>NextAT
►Log_Data=YES
Cause_Fault=YES
Override_mA=YES
>Menu>Setup>Auto-T>NextAT
Auto-test Setup Options
The Auto-test Setup Options page variables control the behavior of the
transmitter during Auto-test.
Log_Data
The Log_Data variable controls values logged during Auto-test. When set to YES
(default), the gas concentration (main reading) is logged as usual, including any
increase caused by the gas generator. When set to NO, a code is logged that will
display as, “TEST”, on graphic and tabular report pages, and printouts.
Cause_Fault
The Cause_Fault variable determines if Auto-test failures cause transmitter fault
alarms. When set to YES (default), a failure to pass Auto-test after the third attempt
will cause a fault alarm, and force the 4-20mA output to the Fault_mA value,
regardless of how the test was initiated (automatic or manual). When set to NO,
Auto-test failures do not cause fault alarms (not recommended).
Override_mA
The Override_mA variable controls the 4-20mA output during Auto-test. When set
to YES (default), the 4-20mA output will be forced to the Autotst_mA value to
prevent receiver alarms (see 4-20mA Setup). When set to NO, the output will
increase as the gas concentration rises, and may cause receiver alarms (not
recommended).
Next Auto-test
The date and time of the next scheduled Auto-test appears on the
NextAT page. The time appearing on this page establishes the time of
day for all future Auto-tests. After each Auto-test, the date will be
incremented by the Day_Interval variable on the Auto-test Setup page
(above). Note that if the Auto-test Status variable is set to READY, and
the next auto-test setting is deliberately (or unintentionally) scheduled in
the past, an Auto-test is immediately scheduled. This is apparent upon returning to the Auto-test
control page (above), and seeing the Status variable blinking START. At this point, you may change
the control to OFF, change the system clock, then change the control back to READY.
During startup, the transmitter examines the date and time of the next scheduled Auto-test. If the
scheduled time and date has past, or if it is scheduled to occur within the next 24 hours, the transmitter
moves the date by one day to provide a minimum of 24 hours before the first (or next) test is performed.
Set the system clock to local time before scheduling the Auto-test time of day.
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