WMA-5 Operation Manual V. 1.01 16 support@ppsystems.com
Routine System Checks
The WMA-5 is designed to monitor CO
2
24/7 and should require minimal maintenance. The routine
system checks are as follows:
Flashing Heart (♥) – Make sure that the heart symbol is flashing in the upper left hand corner.
Water Trap – Periodically inspect for water build-up and empty as required.
Status Box – Inspect periodically for error messages/warnings.
Absorber Column
• Make sure absorber column is seated properly in its manifold.
• Soda lime is fresh to ensure that the unit receives a good Zero to maintain calibration and
stability. If you have any doubt about the freshness of the soda lime you should replace it.
• All “O” rings are lubricated with silicone grease to ensure good seal and to avoid problems
associated with breaking or cracking.
• Inspect gray foam filters and replace if worn or reduced in size.
Touch Display Overview
The flowchart below describes an overview of the touch display for the WMA-5. When the instrument is
first powered up, there is a brief period where the Splash screen is shown. After this time, the instrument
goes into the warm-up period which is approximately 10-15 minutes and the Measure screen is displayed.
During and after the warm-up period, the user has the ability to navigate through the menus as shown in
the flowchart below. The following sections describe each screen and its functionality.
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