PureAire Monitoring Systems, Inc.
30
5.5.5 Resetting a Latching Alarm
(Only available on O
2
monitor with Relays)
To reset a latching alarm relay, you must enter the password correctly and then push the
joystick down to enter the reset command. The Oxygen monitor also has an internal
2-pin terminal block for connecting a remote reset switch. (See Alarm Relay board,
section 1.2.7)
5.5.6 Set Alarm Delay
(Only available on O
2
monitor with Relays)
Push the joystick down to access the next main menu,
Alarm Delay.
The display will
scroll the following:
This is the amount of time an alarm level concentration of oxygen must be present
before the instrument’s gas concentration alarm(s) will be activated. This menu will
permit setting a user selected time delay for activating alarm relays 1 and 2. You can
select from 0 seconds up to 255 seconds after an alarm level has been exceeded before
the alarm relays to activate.
To change this value, push the joystick right to display the time screen. The display will
indicate a value between 0 and 255 seconds. Pushing the joystick up increases the value
and pushing the joystick down decreases the value. Press
ENTER
to accept the value.
After entering the alarm delay, the display will default back to the Alarm Delay menu
and the display will scroll the following:
NOTE:
The alarm delay is only available for alarms 1 and 2. There is no delay for
the fault relay. Any system fault will immediately activate the Fault Relay.
5.5.7 Set Zero Suppression
(Only available on O
2
monitor with Relays)
This function not used on the Oxygen monitor. It is only used to decrease the
sensitivity of selected gas sensors. Although the menu permits the changing of settings,
it is totally disabled in the Oxygen monitor. The factory default is set at 000.
NOTE: This function is not available on the Air Check Oxygen monitor.
…Alarm Delay…
20.9%
005
20.9%
…Alarm Delay…
20.9%
…Zero Suppression…
000
NOTE:
The
menus
highlighted in
light gray are
only used for
O2 monitors
with the Alarm
Relay Board
They are
displayed on
the O
2
monitor
and their
function is
disabled.
