New Ph Pen 3 point calibration, self calibration. Make/Model Omega 8685 Pen. Now there is fluid in the top and not sure what it is? there is white crystals so i no it is not tap water, So is it Storage buffer solution? Or PH 7.0??????????Any thoughts advice would be great Thank you.
Is it already calibrated??? I have also bought buffer 4 + 7PH for re calibration as-well as storage solution and also need some advice on maintenance as plan on making this 1 last lol. Thanks
What do you mean, "the top"? It could be storage buffer.
Always, always, always calibrate a new pen. Fully read your directions to fully understand the readings the meter gives. For the first several uses, test once, rinse in tap water, test again. For pH the readings should be within 0.1 of each other. For EC the two readings should be within 0.01 of each other.
I always store mine in pH 7 buffer in the cap, but yours may not have the space to do this. It is just best not to ever let your probe dry out...ever. So if it is an open-tipped probe, get a 2 fl oz shot glass, pour pH 7 buffer to fill 1/2 full and place pen into the solution and both of those in a zipper storage bag, leaving the electronic part to the open air, to keep the solution from evaporating.