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Thread: PH pen

  1. #1

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    Default PH pen

    Couldn't find anywhere else to slot this. I bought a ph pen, to calibrate it you do it to 3 settings, 6.86, 4.00 and 9.something. Well the first one fucked up and couldn't get it to calibrate so got another and this time followed everything to the letter. Again it didn't calibrate it past the 6.86, soon as I tried to cal the 4.00 it just says error. Gave up,then later on checked a few sites to see the ph level of volvic and most said 7.5, bought a bottle and checked it and it flashed bang on 7.50. Do you reckon this means even though it wouldn't go through the whole calibrating process its still calibrated ok for me to check the water I'll be giving the plants?

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  3. #2

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    Default

    Quote Originally Posted by MrCannab1sir View Post
    Couldn't find anywhere else to slot this. I bought a ph pen, to calibrate it you do it to 3 settings, 6.86, 4.00 and 9.something. Well the first one fucked up and couldn't get it to calibrate so got another and this time followed everything to the letter. Again it didn't calibrate it past the 6.86, soon as I tried to cal the 4.00 it just says error. Gave up,then later on checked a few sites to see the ph level of volvic and most said 7.5, bought a bottle and checked it and it flashed bang on 7.50. Do you reckon this means even though it wouldn't go through the whole calibrating process its still calibrated ok for me to check the water I'll be giving the plants?
    Do you have the 3 calibration solutions?

    My pen you have to calibrate 2 pH levels.

    I start with 7 then rinse and then calibrate with 4 or 10.

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  5. #3

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    Default

    Not sure what make/model of pen you have but with the essentials pen you can calibrate to either 4 or 7 but dont need to do it to both

    If its reading the correct ph in something you know (the volvic water) id be happy to use it

    Are you growing in coco or hydro? Because youll get away with a 0.1 difference in coco i reckon but cant say for hydro

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    Default

    It came with 3 solutions, 1 pkt use so can't test again. Fucking hate technology, always makes me look stupid lol. Its a tropic mix, says 40% coco and 60% peat, has calcium & magnesium in too it says.

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  9. #5

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    Default

    Why not test the pen against the other solutions and satisfy yourself it is working correctly?

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  11. #6

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    Default

    Youre supposed to put all 3 in 3 seperate containers and calibrate ,rinse, dry and repeat for the next 2 ph levels so you have to use all 3 at once.

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    Quote Originally Posted by MrCannab1sir View Post
    Youre supposed to put all 3 in 3 seperate containers and calibrate ,rinse, dry and repeat for the next 2 ph levels so you have to use all 3 at once.
    Yeah, mine auto detects the different solutions.

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    If yours is a hassle free one let me know what it is mate and I'll remember for the future. Naive as fuck when I started this, thought I'd be all set up for about 160 haha, Damn fan and variac was about that, so I cheaped out on the ph tester. Already ordered material to split the room my tents in so I can open it up to 5ft x 2.5ft, spent about 100 there and then I got fucking idol hands and bought a Makita 18v combi and the jigsaw to match lol. I do miss kit day.

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    Mate it spirals so quick in the quest for providing for our girls. It starts with one and ends up a jungle!

    I would have recommend Bluelabs but two crapped on me recently. 70 quid a pop:-(

    Milwaukee is the brand to go for I believe.

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    Default

    I do 4.0 and 7ph dude

    It gives a 2 setting reference .

    Even if man. Calls for just one . Do both .and dont go cheap .
    I love my milwaukee meters . Takd care of them and theyll take care of you !!

    Sent from my SM-G950W using Tapatalk

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    Quote Originally Posted by Trex View Post
    I do 4.0 and 7ph dude

    It gives a 2 setting reference .

    Even if man. Calls for just one . Do both .and dont go cheap .
    I love my milwaukee meters . Takd care of them and theyll take care of you !!

    Sent from my SM-G950W using Tapatalk
    Sound cheers man, so what model do you use? I take it there's more than 1.

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    I've only ever calibrated to the closest range im working with which is 7 never had an issue...

    "To calibrate the Essentials pH Meter you will need a bottle of Buffer 7 (the meter comes with a small sachet). Then simply dip the meter into the buffer 7 and hold the calibrate button until it says CAL, the Essentials pH Meter will then re-calibrate the device."




    Regards BL

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    Must say I've used HM ,and blue lab ,and the latter been the biggest pile of shit tbh and fuck me way way over priced ..essentials all day long imho


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  27. #14

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    And same as you bud I only calibrate at the one point ( 7)

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  29. #15

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    Also remember 7 is bang in the middle of the ph scale..






    Regards BL

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  31. #16

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    Milwaukee Mw100

    Sent from my SM-G950W using Tapatalk

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  33. #17

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    Quote Originally Posted by Jumper114 View Post
    Do you have the 3 calibration solutions?

    My pen you have to calibrate 2 pH levels.

    I start with 7 then rinse and then calibrate with 4 or 10.
    Stick to cooking

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  35. #18

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    Quote Originally Posted by Sadface View Post
    Stick to cooking
    Curious ... why ...? Reasoanable advice - no?

    I use Bluelabs and they are two solution calibration. The OP stated a 3 pen calibration pen.????? Seemed weird.

    I prefer cooking to pH pens arguably !!!
    Last edited by Jumper114; 30-09-19 at 09:42 PM.

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  37. #19

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    Nah your full of shit mate ,remember you telling me for the cost of £20 not owning a EC pen I'm robbing myself ( you can't get a £20 blue lab for that ) ...all you do is blow smoke up your own arse kidda ...I could go on ..

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