Prodigious Puff
!Prodigious!
- Joined
- Jan 9, 2008
- Messages
- 90
- Reaction score
- 74
Also on that meter....when I calibrate mine I calibrate TWICE with pH 7.01 solution (Sometimes I pour a new cup full for the second measure, but I usually use the same). You can Calibrate our meters with 4.01 AND 7.01 but its not REAL necessary. What I do is this:
1. I swirl the pH meter in RO water just to try and clean off the probe.
2. Then I setup calibration. Like the manual says from pH mode hold power button on meter until "cal" shows up in lower screen. When "cal" shows up in screen release power button and then the screen should say," 7.01 USE"
3. Stand the meter up in calibration solution and let go if it !!(balance it upright...it's easy on level surface). *****A quick note here...that little cup on the top of Nyquil is a GREAT cup to calibrate with and its plastic so you don't get any of the cross over hindrance from glass. Be sure and clean it well with tap water***** Now that the meter is stood up in cal solution stand back and watch the lcd. When the lcd says "4.01 USE" press the power to return to the measurement (this whole time leave that meter in solution!)
After you hit power leave the meter in solution and step back and watch that meter .... probably 7 out of 10 times it will immediately start drifting up and up ...that's a sign of inaccurate calibration.....so DO IT AGAIN.
Take meter out of solution and start at step 2. Follow steps with same solution (the pH solution is buffered so it won't change drastically in those five minutes, sometimes I'll pour new pH 7.01 solution). In step 3 when the screen says "4.01 USE" hit power button to exit to pH measurment mode (all the while leaving meter in solution) and watch that pH stay smack dab on ~7.01 for good. Try it...it works well for me...I calibrate my meter after I clean it about every 2-3 weeks. I love that baby.
1. I swirl the pH meter in RO water just to try and clean off the probe.
2. Then I setup calibration. Like the manual says from pH mode hold power button on meter until "cal" shows up in lower screen. When "cal" shows up in screen release power button and then the screen should say," 7.01 USE"
3. Stand the meter up in calibration solution and let go if it !!(balance it upright...it's easy on level surface). *****A quick note here...that little cup on the top of Nyquil is a GREAT cup to calibrate with and its plastic so you don't get any of the cross over hindrance from glass. Be sure and clean it well with tap water***** Now that the meter is stood up in cal solution stand back and watch the lcd. When the lcd says "4.01 USE" press the power to return to the measurement (this whole time leave that meter in solution!)
After you hit power leave the meter in solution and step back and watch that meter .... probably 7 out of 10 times it will immediately start drifting up and up ...that's a sign of inaccurate calibration.....so DO IT AGAIN.
Take meter out of solution and start at step 2. Follow steps with same solution (the pH solution is buffered so it won't change drastically in those five minutes, sometimes I'll pour new pH 7.01 solution). In step 3 when the screen says "4.01 USE" hit power button to exit to pH measurment mode (all the while leaving meter in solution) and watch that pH stay smack dab on ~7.01 for good. Try it...it works well for me...I calibrate my meter after I clean it about every 2-3 weeks. I love that baby.
