Digital Ph Meter Review – Push Button Calibration | ph tester

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Digital Ph Meter Review – Push Button Calibration


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http:///phmeter.risantec.com Digital pH Meter Review
This digital pH meter review is going to focus on the auto calibration feature of the Risantec ph meter. You do not need a screw driver or any other tools to calibrate this digital meter.
Calibration Instructions
The Risantec pH meter is designed to be calibrated using a twopoint calibration process.
If you know that you will be testing for acidity, you will use the 6.86 solution and the 4.0 solution.
If you know that you will be testing for alkalinity you will use the 6.86 solution and the 9.18 solution
If unsure, it is recommended using the 4.0 solution as the second point of calibration.
Step 1: Mix each of the two chosen buffer powders in 250 ml (approximately one cup) of distilled or deionized water.
Step 2: Insert the tip of the pH meter into the 6.86 solution and push the ‘cal’ button in and hold in for 3 seconds before releasing. (This initiates the calibration procedure.)
The meter will begin flashing 6.86.
Gently swirl until the reading stabilizes.
Step 3: If Using the 4.0 solution:
Insert tip of meter into the 4.0 solution.
Press and hold the ‘cal’ button for 3 seconds before releasing, the meter starts to flash 6.86), and then immediately press and release again (without holding it in for 3 seconds) and the meter will begin to flash 4.0. Gently swirl until the reading stabilizes.
Alternate Step 3: If using the 9.18 solution as the second point of calibration
Insert the tip of the pH meter into the 9.18 solution and push and hold in the ‘cal’ button for 3 seconds before releasing (the meter will start to flash 6.86) and then immediately press and release twice more without holding in the button and the meter will flash 9.18.
Gently swirl until the reading stabilizes.
Note:
For each solution, the ‘cal’ button needs to be ‘activated’ by holding it in for 3 seconds. Then press and release once more for the 4.0 solution….OR…. press and release TWICE more after the initial hold in for the 9.18 solution.
Video:: https://www.youtube.com/watch?v=Yi42DcIluYo

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Digital Ph Meter Review - Push Button Calibration

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