The Planted Tank Forum - View Single Post - Milwaukee Instrument Ph monitor/controller SMS122

fishyface · 11-23-2008, 01:52 AM

you never mentioned how old the probe is. sometimes when a probe's been around the block (so to speak) one too many times it makes it impossible to calibrate. especially if you're attempting a two point calibration.

11-23-2008, 01:52 AM	#5 (permalink)
fishyface Planted Member (View User Tanks) PTrader: (0/0%) Join Date: Oct 2004 Location: Surrey BC Posts: 229	you never mentioned how old the probe is. sometimes when a probe's been around the block (so to speak) one too many times it makes it impossible to calibrate. especially if you're attempting a two point calibration.