PureAire Monitoring Systems, Inc.
8
2.6 AirCheck O
2
System Default Factory settings
The
Air Check
O
2
Deficiency Monitor, when supplied with the optional Relay module, 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.
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 = Inverted*
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 = Non-latching
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 = 19.5%*
At what level do you want to
alarm?
Set Alarm Hysteresis
Alarm 1 = 0.0 %
Alarm 2 = 0.0 %
Audio = 0.0 %
For use when using the O
2
monitor
for control of valves and process.
See Section 5.5.9
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.
NOTE
:
The built in relay settings may be changed by the user in the field. Refer to
Section 5.5.2
* NOTE:
The Audio alarm feature is optional.
** NOTE:
The LED indicators on the front panel are connected directly to the alarm
relays.
