I am beyond frustrated and spent way too much time trying to get a $700 piece of equipment working. Unit is brand new. Been hooked up to my tank for ~1 month although was purchased in July. My issues are outlined below. Would really appreciate someone helping my out or guiding me to the best way to get this thing working or replaced if it is defective.
PH Probe: This thing is wayyyyy off. I cannot get the automatic calibration to even work. Have tried to do the "manual calibration reset" where you just click through it. Has never given me consistent readings w/ huge swings in PH over the course of a day or readings of < 7 or > 10 after going through calibration process. Only way I can even get through calibration process now is to do manual. When doing manual I am waiting for consistent # readings (these are always in the 700s regardless of solution used not sure if this matters). Yes I am floating the calibration fluid for 24+ hours prior to trying.
Salinity: I have a Milwaukee, refractometer and hydrometer. Milwaukee calibrates in seconds and I get consistent 35ppt. Refractometer same thing. Hydro varies a bit more but within range. Closest I can get with this salinity probe is 33.5 ppt? I have tried calibrating 5+ times.
Temp: Out of all the probes I thought this would be the one that just worked. Well I am not so sure it does. I bought a Hanna digital temp to check - accurate within .1 and is certified for use in food processing (HACCP). Reads within .1 of 77.5 degrees. Apex shows 78.2. Got a regular mercury thermometer and reads within .1 of the Hanna. So the Apex appears to be off by .5 on temp.
ORP: No idea on how to verify this but it reads low 200s. Seems well off the ranges of high 300s to low 400s.
What should my approach be on all this? Any help is greatly appreciated! This thing should just straight work for the price you pay and I feel like it does not. Very well could be user error but I have done a lot of reading on all of these. Thanks everyone!
Bookmarks