I sprayed the glass bulb with Isopropyl Alcohol (IPA) and soaked the end in hot tap water (as hot as your faucet has), blasted with IPA again, gently scrubbed the glass bulb with a boar's hair shaving brush and rinsed the tip and bulb in hot water. After I dried the tip off I soaked the end in distilled water and was able to calibrate the PH meter. Dried gunk gets built up on the glass bulb especially if the meter is used for measuring PH of hydroponic solutions which have dissolved salts, etc in the solution.
Same here, I’m only being offered a refund. I tried the take the battery out and it still doesn’t work. I even tried soaking it in distilled water and still no luck!
Important!!! Or not but i just got a new one today and used purified drinking water (not sure if wrong) for the packets at 250ml and I would get the error when trying to calibrate the 4.01 ph one and wouldnt go away unless i removed the battery, but then I calibrated the other two packets with acurate reading and tested the 4.01 ph and it was at 3 ph so!!!! **I think if you try to calibrate without the correct ph lvl you might get the error code.
I sprayed the glass bulb with Isopropyl Alcohol (IPA) and soaked the end in hot tap water (as hot as your faucet has), blasted with IPA again, gently scrubbed the glass bulb with a boar's hair shaving brush and rinsed the tip and bulb in hot water. After I dried the tip off I soaked the end in distilled water and was able to calibrate the PH meter. Dried gunk gets built up on the glass bulb especially if the meter is used for measuring PH of hydroponic solutions which have dissolved salts, etc in the solution.
Same pen same issues . Even with new batteries i think this pen is a peice of junk going off how many people have the same issue
Haha.. Low quality perharps..
Same here, I’m only being offered a refund. I tried the take the battery out and it still doesn’t work. I even tried soaking it in distilled water and still no luck!
I guess it's one of the defect issue. Duno why these item so fragile.
The same with mine and same pen too, Did you sort out? what should be done?
Im having issues with one that looks the same. Did you solve it? Manual says to soak the tip in the liquid for a few hours... trying that now.
Didn’t solve. End up give up already
Important!!! Or not but i just got a new one today and used purified drinking water (not sure if wrong) for the packets at 250ml and I would get the error when trying to calibrate the 4.01 ph one and wouldnt go away unless i removed the battery, but then I calibrated the other two packets with acurate reading and tested the 4.01 ph and it was at 3 ph so!!!! **I think if you try to calibrate without the correct ph lvl you might get the error code.
Mine will only calibrate to 6.86 but when try to calibrate 4.0 it will display 6.86 again can’t get It to go on to the next cal ph4.0
Same 😢
Fast press cal after holding for 5 seconds
You have to invest in a decent pen and clean it with ipa regularly
I have the same problem here! anyone found out what's the issue? thanks.
mine did same thing ...remove the battery to reset and then try it again...mine worked!
como se resetea?
The seller sent me the new unit after seen this video.
Did you ever sort out the problem? or did you chuck it?
The water temperature must be 25°c?
Here watching videos before I try this thing and this is what I'm seeing
Use warm water, should work.
Same with mine …..is not reading
Same Issue for me also...
Any solution or fix ?
exactly the same with mine and same pen too
Bisakah alat ini untuk ngukur ph urine
Hold calibration button for 5 full seconds.
Don't loose the press until the reading stopped blinking that's your wrong process
Your instruction videos was wonderful. NOTTT. WHY DID YOU WASTE YOUR TIME. Cat got your tongue?
Shit exactly same here.
My phone testers same problems
Unit faulty then. CAnt be calibrated
This is so stupid i paid 15 bucks for a fking metter that i have to do all this bs to
Then,pay $80-$100+ for,one you ALSO have to do this to!😊
@@Mizman76but it will last longer
same shitty amazon ph pen lol