PureAire Monitoring Systems, Inc.
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This is the menu at which to adjust the 20mA output being sent from the Universal Gas
Detector. To change this value, push the joystick right to display the 20mA span
setting. The display will indicate a value between 0 and 255 counts. Pushing the
joystick up increases the value and pushing the joystick down decreases the value. The
20mA output being sent from the Universal Gas detector will change as the number on
the digital display changes. Push the joystick left once to enter the setting.
Pushing the joystick to the left also brings you back to the pervious Main menu. The
digital display will scroll the following:
Push the joystick down to access the next sub menu;
Test Loop and Alarms will
scroll.
This is the menu at which to test the entire 4 and 20mA output range being sent from
the Universal Gas Detector. To enter the menu, push the joystick right. The display
will indicate
Testing
. The display will indicate a value between 0.0 ppm and full scale
ppm reading. Pushing the joystick up slowly increases the ppm value. From a 0.0ppm
indication, pushing the joystick down will immediately display a full scale ppm reading
and quickly activate the alarm relays and internal horn. Continuing to push the joystick
down will slowly decrease the ppm value. The mA output will change as the ppm
indication on the digital display changes and the alarm relays and internal horn will
activate when alarm thresholds have been exceeded. Push the joystick left once to exit
this menu and reset the mA output back to 4mA, (0.0ppm)
NOTE: The mA output automatically resets back to 4mA, (0.0ppm) when you exit
the Testing menu.
255
0.0 ppm
...Testing…..
0.0 ppm
.…Test loop and alarms….
0.0 ppm
...Set 20mA Span….
0.0 ppm
