Results 1 to 4 of 4

Thread: PM2 Calibration For Stupid

  1. #1
    New User
    Join Date
    Feb 2018
    Location
    Rockford illinois
    Posts
    3

    PM2 Calibration For Stupid

    Thank you for the Add.

    So, last night I calibrated my Conductivity probe... I followed the directions to the letter. When done, my reading was 34.9! Great... I removed it from the solution and put it into my sump. Away from any interference. It jumped to 54/55... Thought that's weird but maybe I have some stray voltage... so I routed the probe cable 2 feet from any power wire and filled a beaker with water, separate from the tank water to see if I did have stray voltage in the tank... it still read 55. As the water cooled it dropped to 50. Back in the solution 35. I have the temp probe on the PM2 also calibrated and offset at 2.2 for salinity calibration ... now what?

  2. #2
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
    Posts
    13,176
    That big of a difference usually means you need to reset the probe. Run a calibration with the probe unplugged, then do the normal calibration procedure again, but this time make sure your packet matches tank temp exactly.

    You might be an engineer if...You have no life and can prove it mathematically.

  3. #3
    New User
    Join Date
    Feb 2018
    Location
    Rockford illinois
    Posts
    3
    Worth a try. According to Neptune I have... correctly calibrated it.

    The temperature was spot on. I floated it the first time.

  4. #4
    New User
    Join Date
    Feb 2018
    Location
    Rockford illinois
    Posts
    3
    I calibrated it in my tank water, forgoing the 53000 solution ... reads at 34.9 steadily. We'll see tomorrow.

Similar Threads

  1. PM2/Conductivity Calibration Fluid for Kalkwasser
    By rtsundland in forum AquaBus Modules, Probes, and Breakout Boxes
    Replies: 0
    Last Post: 01-12-2021, 19:08
  2. Help! PM2 Calibration issue
    By Scubalens in forum AquaBus Modules, Probes, and Breakout Boxes
    Replies: 0
    Last Post: 02-15-2019, 08:15
  3. PM2 calibration and temp compensation
    By dtaranath in forum AquaBus Modules, Probes, and Breakout Boxes
    Replies: 2
    Last Post: 08-23-2015, 10:01
  4. Does the PM2 module or Salinity probe come with calibration solution?
    By animan in forum AquaBus Modules, Probes, and Breakout Boxes
    Replies: 1
    Last Post: 05-29-2015, 22:32
  5. Question: Pm2 Calibration of salinity Probe.
    By i8avet in forum Apex Classic/Apex Lite/Apex Jr
    Replies: 5
    Last Post: 03-13-2015, 14:41

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •