ATI Series D12 Toxic Gas Transmitter with H10 Smart Sensor
Revision N (7/15) 45
►Status=OFF
Setup NextAT
GasGen
History
>Menu >Setup >Auto-T
►Day_Interval= 1
▲Pass= 2.5PPM
Options
>Menu >Setup >Auto-T >Setup
Auto-test Controls
Auto-test is controlled by the Status variable, which appears on the Auto-test page shown below.
Figure 40. Auto-test control page
Table 7. Auto-test control variables
Status
The variable Status may be set to one of three values:
OFF – Auto-test will not begin automatically
READY – Auto-test will occur on a regularly scheduled basis
START – Auto-test will run once after returning to the Main Display
page, and does not affect the preset schedule.
If a generator is not installed, Status will be forced to OFF, and may not be
changed to READY or START until one is installed.
Setting the Status variable to START will not begin a manual Auto-test until you
return to the Main Display page. This is designed to permit changes to the
setting, or other settings, before launching the Auto-test sequence.
Auto-test Setup
The Auto-test setup page configures the Auto-test schedule pass threshold, and options for various
transmitter indications.
Figure 41. Auto-test setup page
Table 8. Auto-test setup variables
Day_Interval
The Day_Interval variable specifies the number of days between automatic tests.
The default is 1, and the limit is 1 to 14 (the exact time of day for testing may be
set on the NextAT page, see below).
▲Pass
The delta-Pass variable specifies the amount by which the gas concentration
must increase, in order to pass. Prior to starting the test, this amount is added to
the “un-blanked” gas concentration reading to compute the pass threshold value
that appears on the display (see
Auto-test Sequence). This value is limited between 5%(default value), and 10%
of the full-scale range (see Range in Table 4)
Options
Options is a link to the Auto-test Options page (below).
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