issues_with_ph_measurement
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issues_with_ph_measurement [07/08/2019 07:07] pieter [pH Troubleshooting] |
issues_with_ph_measurement [23/09/2019 07:08] pieter |
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| * the calibration cannot be done successfully, | * the calibration cannot be done successfully, | ||
| * the pH is correctly when measuring buffers but not when measuring some other reference solutions, | * the pH is correctly when measuring buffers but not when measuring some other reference solutions, | ||
| + | * the measurements are not repeatable, | ||
| * ... | * ... | ||
| + | Check this list of possible reasons: [[Guide to troubleshooting|Guide to troubleshooting]] | ||
| + | ===== Check electrode ===== | ||
| Many measurement problems arise from the electrode or from a wrong use, rarely from the instrument itself. Therefore it is important to: | Many measurement problems arise from the electrode or from a wrong use, rarely from the instrument itself. Therefore it is important to: | ||
| * Make sure there is no **air bubble trapped** in the pH sensitive bulb. If this should be the case, shake it like a clinical thermometer with the bulb downwards to remove it. | * Make sure there is no **air bubble trapped** in the pH sensitive bulb. If this should be the case, shake it like a clinical thermometer with the bulb downwards to remove it. | ||
| Line 23: | Line 26: | ||
| * Follow the [[http:// | * Follow the [[http:// | ||
| - | When an error arises, it is best to try to locate the cause first. | ||
| ====== Report a measurement problem ====== | ====== Report a measurement problem ====== | ||
issues_with_ph_measurement.txt · Last modified: 23/09/2019 07:12 by pieter
