PureAire Monitoring Systems, Inc.
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This is the gas concentration at which the instrument’s second level alarm will be activated. To change the
displayed value, push the joystick to the right to display the second level alarm setting. The display will
indicate a value between 00.0% and full scale.
Pushing the joystick up increases the value and pushing the joystick down decreases the value. Press
ENTER
to accept the value.
After entering the relay state the display will default back to the
Set Relay 2 Alarm
Threshold
Menu. The display will scroll the following:
Push the joystick down to access the next sub menu;
Set Audio Alarm Threshold,
will scroll on the digital display.
NOTE:
The audio alarm option module is not available for Carbonyl Sulfide.
4.6.8 Set Alarm Hysterisis
This function was designed for PureAire’s Oxygen deficiency monitor when used as a control system.
NOTE: The Hystersis function is permits a user to set the dead band for both Alarms 1 and 2
and is not applicable to the Carbonyl Sulfide toxic gas monitor. The Hysterisis
setting is factory set at 0.0 ppm
It is recommended to set both alarm hysteresis at 0.0ppm. Changing it will
affect when the alarm relay deactivates after tripping.
4.6.9 Sensor Adjustment
NOTE:
Refer to Section 5.4 Sensor Calibration for complete instructions on the use of
this menu.
5.0 PPM
0.0 PPM
2
0
.
9
%
..Set Relay 2 Alarm Threshold…
0.0ppm
..Sensor Adjustment…
0.0ppm
