Six-In-One Meter

[Guest finallyfree09]

i recently purchased a six-in-one meter for my garden. it measures ph, ec, tds and so on. to calibrate the ec probe it says to use 2 different calibration solutions... this is where i am a little bit confused.

 

these are the exact words in the instructions...

 

1. press the mode key. choice the "EC" for operating. immerse the meter in 12880 u s/cm(12.88ec) calibration solution.

 

2. allow the reading to stabilize and with a small screwdriver turn the CAL calibration trimmer until the display shows "12.88ec". rinse the electrode with distilled water and suck it with filter-paper. unscrew the battery compartment cap on the top of the meter.

 

3. immerse the meter in 1413 u s/cm(1.41ec) calibration solution until the display shows "1413(1.41ec)

 

 

now... what the heck do i do here? i had a knowlegable friend tell me not to worry about the 12880 calibration solution as that is for calibrating the high end ec measurments. he said to use the 1413 stuff and i should be fine.

 

what do i do?

[Grow Thread]

be safe and do it exactly as the instructions say

[Guest finallyfree09]

that was my thought. now i gota buy another calibration solution. darnit

[G3LLO]

I am guessing we have the same meter and I am going through the samething =)