On May 27, 2023, I installed the Neptune Systems Lab Grade Conductivity Probe (Part No. PRBCOND) onto my Apex EL using the PM3 module. Everything worked perfectly for 7 days until this morning when I woke up to find my salinity reading for the probe was 0. I did some research and tried the recommended fixes.
I unplugged the probe, rebooted the apex, ran the calibration with the probe not connected, rebooted, replaced probe, and recalibrated. During calibration, the dry reading was 16 and solution reading was 18. After these failed numerous times, I deleted the PM3 module, rebooted and reinstalled the PM3 module. I then did the salinity probe recalibration without it being plugged in, reboot and recalibrate, with the same results.
I reviewed my log to determine the probe was working until 07:30 when the conductivity reading dropped from 33.9 to 5.68 then to 0. The entry immediately before this was a Kalkweiser doser plug activated for 1 minute 30 seconds. I can’t imagine how this could have any correlation to the probe having stopped working.
Anyone have any suggestions? If the probe is bad, will Neptune warranty it? My local fish store where it was purchased will not.
I unplugged the probe, rebooted the apex, ran the calibration with the probe not connected, rebooted, replaced probe, and recalibrated. During calibration, the dry reading was 16 and solution reading was 18. After these failed numerous times, I deleted the PM3 module, rebooted and reinstalled the PM3 module. I then did the salinity probe recalibration without it being plugged in, reboot and recalibrate, with the same results.
I reviewed my log to determine the probe was working until 07:30 when the conductivity reading dropped from 33.9 to 5.68 then to 0. The entry immediately before this was a Kalkweiser doser plug activated for 1 minute 30 seconds. I can’t imagine how this could have any correlation to the probe having stopped working.
Anyone have any suggestions? If the probe is bad, will Neptune warranty it? My local fish store where it was purchased will not.