35
INVERT
20.9%
NORMAL
20.9%
..Set Alarm 2, O2, Polarity..
O2 20.9%
...Set Latching…
O2 20.9%
..Set Latching Relay 1, CO2…
O2 20.9%
To change this value, push the joystick right to display the relay state. The display will
indicate
INVERT.
Pushing the joystick down will change the relay state from INVERT to
NORMAL.
NOTE: When the O2 relay state is changed to NORMAL, the internal horn and red
alarm LED will illuminate.
After entering the polarity push the joystick left to enter the setting. The display will scroll
the following:
5.5.4 Set Latching
This is the menu at which to adjust the relay alarm state for both O
2
and CO
2
alarm relays and
the individual instrument fault relay. The selection permits setting the relays to a latching or
non-latching state. In a latching state, the relay will remain activated until the user manually
selects the Enter Key. In a non-latching state, the alarm relay will automatically reset once
the gas concentration has returned to 20.9% for oxygen.
From this main menu, pushing the joystick to the right will select the sub menu and the
digital display will scroll the following:
..Set Alarm 2, O2, Polarity..
O2 20.9%