CCPaSEC logoCentre County Pennsylvania Senior Environmental Corps

at ClearWater Conservancy



CCPaSEC uses several YSI Model 550A Dissolved Oxygen meters in monthly water testing.  The video below describes the care and use of a Model 550A YSI DO meter.  Runtime: 34 min. 7 sec.  Video features Dan DeLotto © CCPaSEC & Loretta Jeffreys. 2011-2016

Topics to be covered*:

  1. Adjusting the Strap (at 1:47 min.)
  2. Attaching the Probe Holder (at 4:39 min.)
  3. Installing the Batteries (at 9:42 min.)
  4. Preparing the Probe (at 12:09 min.)
  5. Calibrating the Meter (at 19:51 min.)
  6. Testing the Water (at 28:08 min.)
  7. Protecting the Meter (at 30:57 min.)

Controling the video:

videostartarrow  Click center arrow of video to begin.  Buffering of video may take several minutes prior to video starting.

bleftvideocontrols Task bar below video (left):

  • *Slider Dot / Timeline -
    • Move mouse pointer over horizontal line to the right of the Slider Dot to view min:sec of video frame time.  Click on the line to begin the video at that time point.  OR
    • Click and drag dot to fast forward or rewind video to desired video frame.
  • Left-side Start/Pause control - Click to start or pause video.
  • Volume Control adjustment - Click to mute or for full volume. Click and drag slider for fine tuning.
  • Video frame time / total runtime.

brightvideocontrols Task bar below video (right):

  • Quality Settings
  • Right Viewing Size adjustment - Click to view full screen.  ESC will exit full-screen viewing.


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Flow & Data Recording Forms, Meter & Kit Manuals, Macro Guides

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