Digital PH Meter Tester Pocket Portable Pool Water Aquarium Hydroponic Wine New
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1 Digital PH Meter Pocket Sized
Features： Brand Excellent With An In addition, you must calibrate this tester whenever the following happens:
Specification: *Measuring
*Resolution:
*Accuracy:
*Operating
*Calibration:
*Relative
*Life:
*Size:
*Trimming:
*Battery:
*Net
Package: *1 *1 *3 *1 The way of Calibrate:
Note:
1. Please First thing I did was calibrate it. I picked up
some distilled water, and measured out 250 mL into a glass jar. Luckily, I have a little kitchen scale so I could be precise. I poured in the 6.86 solution, stirred until it dissolved, and placed the tip of the meter into the solution. It measured nearly 7, and so I used the screwdriver to adjust the levels on the back end of the meter. It’s easy enough to do, but I did have to hold the tip of the meter into the water with my right hand and make adjustments with my left while I was bent over checking the reading until it hit 6.86. Then I cleaned off the tip with the electrode sensor by dipping it into the more distilled water, waited until it dried, and then went through the calibration process again with the 4.01 buffer. This time it was a lot closer, but I still had to make a minor adjustment, and then it was ready.
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