ATI Series D12 Toxic Gas Transmitter with H10 Smart Sensor
Revision N (7/15) 48
Figure 42. Auto-test sequence
After one hour…
After one hour…
If after 5 minutes of gas generation the reading is still below the pass value…
displayed for 10
minutes to allow time
for the reading to return
to normal.
Autotest reverts to either
READY or OFF at the
completion of the test (or when
the state is changed to STOP).
Retry every minute for
1 hour and 30 minutes.
Autotest FAIL is displayed if the
reading does not reach the pass
value after 3 attempts. Since some
gas may have been generated, this
displa
y is held for 10 minutes while
the gas dissipates.
PPM
H2S
Main Display
►Start 00:00
Reading= 0.0PPM
Auto-Test Page
PPM
H2S
Main Display
Gas Conc
Greater Than
10% Range?
►GENERATE 04:59
Reading= 0.0PPM
PassVal=0.25PPM
Auto-Test Page
►FAIL 1/3 59:59
Reading= 0.0PPM
PassVal=0.25PPM
Auto-Test Page
►FAIL 2/3 59:59
Reading= 0.0PPM
PassVal=0.25PPM
Auto-Test Page
►FAIL 3/3 59:59
Reading= 0.0PPM
PassVal=0.25PPM
Auto-Test Page
►Pass 9:59
Reading=0.5PPM
PassVal=0.3PPM
Auto-Test Page
►Fail 9:59
Reading=0.0PPM
PassVal=0.3PPM
Auto-Test Page
►READY 00:00
Reading=0.0PPM
Auto-Test Page
►OFF 00:00
Reading=0.0PPM
Auto-Test Page
PPM
H2S
Main Display
Message Page
Concentration …
Concentration too high