PureAire Monitoring Systems, Inc.
7
2.6 AirCheck O
2
System Default Factory settings
The
Air Check
O
2
Deficiency Monitor is shipped with factory defaults for the alarm relay settings.
The following are the factory defaults:
Menu Function Factory Default
Menu Defined
Set 4-20mA loop
The mA output is set at
the factory using a
calibrated Fluke meter.
Use this function to adjust the
Oxygen monitors 4mA, (Zero) and
20mA, (Span) to your PLC or
distributive control system.
Sensor Adjustment
No factory default
For use when dynamically gas
calibrating the Oxygen monitor to
a known span gas.
See Section 6.2
Manage Passwords
Factory default is
557
For use when changing the
password from factory default to a
new password of your choice.
The following Formats only used for O
2
Monitors with Alarm Relays
Set Formats
LED and alarm relay
State **
Alarm 1 = Normal
Alarm 2 = Normal
Fault = Normal
Do you want the relays to
energize, (normal) or de-energize,
(fail safe) when the alarm
activates?
Set Alarm Threshold
Polarity
Alarm 1 = Inverted
Alarm 2 = Inverted
Audio = NA
Do you want to alarm at a level
higher, (normal) or lower,
(inverted) than the alarm
threshold?
Set Latching
Alarm 1 = Non-latching
Alarm 2 = Non-latching
Audio = NA
Do you want the alarm to
automatically reset? (non-latching)
or do you want to manually reset
the alarm? (latching)
Alarm Delay
Alarm = 5 seconds
How long do you want to wait
until the alarms activate?
Zero Suppression
000 = 0.00%
Refer to section 4.5.6
This function is Not Enabled on
the Oxygen monitor.
Set Alarm
Thresholds
Alarm 1 = 19.5 %
Alarm 2 = 18.0 %
Audio = NA
At what level do you want to
alarm?
Set Alarm Hysteresis
Alarm 1 = 0.0 %
Alarm 2 = 0.0 %
Audio = NA
For use when using the O
2
monitor
for control of valves and process.
See Section 5.5.9
