When water droplets go from being present to not being present over the probe head there is a noticeable decay in the data which causes a curve to be present when graphed and shows that there should be droplets during this time even though during test runs there shouldn't be. Below are some examples of data collected to visibly show this issue with the WCM.

• Reference: /nas/und/NorthEast/2025/Lab/CH423/GroundData/20250416_165626/PostProcessing
• Reference: /nas/und/NorthEast/2025/Lab/CH423/GroundData/20250416_165626/Camera_Data

Below is a picture that shows a comparison of the graphed data to the camera data that was collected and how during the cut off of water droplets there is a gradual decay in the graph before it comes to a “zero” value. Note: the reason that the value in the graph does not display a zero value is due to issues with the WCM probe head not send a zero value during the presence of clear air. This is caused by equations with in the WCM not be programmed into the WCM to zero out the data before data collection occurs.

• Reference: /nas/und/NorthEast/2025/Lab/CH423/GroundData/20250409_181552

Click on above link (twice) to find a time series of lab data obtained with humidifier generated mist on 2025/04/09.

During the setup of the WCM, we were having issues with the power not being supplied to the WCM Power Box which prompted the WCM software to say that ser17 can't open.

The power connection of the leads from the WCM Power box to the D/C Power supply was not making a good connection with the prongs themselves on the D/C Power supply.

The leads coming from the WCM power box where squeezed together to help in making better contact with the prongs on the D/C Power supply.