Blue Lab Guardian Users. Please Help

A

adower

Well-Known Member
I picked up a blue lab guardian and I just noticed that the PH 4/7 lights are constantly blinking on and off at the same time. Does anyone know what this means? I tried to calibrate it and everything went okay, no errors on the screen. However, the lights are still doing their thing. Is my PH probe bad?

If you have a blue lab guardian can you please tell me if your ph 4/7 lights stay off, blink, or stay on?
 
did you calibrate with 4 and 7 solution? I just use 7 and it's been good to go every time. I own two and still don't really know the details without being at the device. just hold the ph button down and place the probe in the solution.
 
lol you calibrate it man. you have to. its a good ph meter. its comes with an instruction manual. its fairly simple. figure it out. man. tkae the effort and time.. just read an understand what it says to calibrate
 
oceangreen said:
lol you calibrate it man. you have to. its a good ph meter. its comes with an instruction manual. its fairly simple. figure it out. man. tkae the effort and time.. just read an understand what it says to calibrate
Click to expand...

I did calibrate it. Did you read my post? Its blinking right after calibration.
 
dbkick said:
did you calibrate with 4 and 7 solution? I just use 7 and it's been good to go every time. I own two and still don't really know the details without being at the device. just hold the ph button down and place the probe in the solution.
Click to expand...



Yes I used both 4&7 solution.
 
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