ATI Technologies d12 series - Main Display Page; Five-Minute Time-Out Rule; Esc Key Operation (Main Display Page); Fault Indication (Main Display Page)

ATI Series D12 Toxic Gas Transmitter with H10 Smart Sensor
Revision N (7/15) 31
Main Display Page
The Main Display Page shows the name and concentration of the target gas, and units of measurement
(PPM, PPB, %, etc). Indicators on the left and below show alarm and operating status.
Figure 26. Main display
Five-minute Time-out Rule
Most other pages are used for configuring the transmitter and sensor, and
have five-minute timeout. That is, after five minutes of no key activity,
the transmitter automatically returns to the Main Display page.
Exceptions to this rule include the zero and span calibration pages.
Esc Key Operation (Main Display Page)
Holding the magnet over the ESC key for 2 seconds, then removing,
toggles alarm inhibit mode on and off. If the alarm inhibit mode was off,
it is turned on for 15 minutes (default value). If alarm inhibit was on, it is
turned off immediately. Alarm inhibit mode is on when the “I” status
indicator is visible.
Fault Indication (Main Display Page)
Faults are indicated on the Main Display Page as shown in Figure 27.
Figure 27. Standard fault indication
Indicates concentration
Above 100% full scale
Indicates concentration
Below 20% full scale
Main Display
PPM
H2S
A
I
L
A
D
S
MENU
W
C
F!
0.0
High Alarm Active Flag
Arrow indicates rising or falling
alarm. Select to manually reset and
view time of alarm.
Status Indicators
I=Alarm inhibit on
L=4-20MA loop locked
A=Autotest in progress
D=Data logger on
S=Security on (password req.)
Select each to view description.
Menu
Select to access menus.
Name of Gas
Identifies the target gas species
being monitored.
Units of Measurement
PPM,PPB,%,%LEL
Caution Active Flag
Arrow indicates rising or falling
alarm. Select to manually reset and
view time of alarm.
Warning Active Flag
Arrow indicates rising or falling
alarm. Select to manually reset and
view time of alarm.
Fault Active Flag
Select to identify fault condition(s).
Main Reading
Blanked to suppress display of
negative values, and may also
be blanked slightly above zero
(see Sensor )
Used to derive 4-20mA output
PPM
H2S
L
MENU
----
F!
Main Display
Esc
2s