COMPONENTS OF THE ELECTRODE SYSTEM | |
| CONTROLLER | Perform the checkout procedure as described in the instruction manual. |
| ELECTRODE | Perform an electrode slope check and inspect the electrode for physical damage. Polish, soak, or rebuild the sensing membrane. Monitor the leak rate on the reference side. |
PROPER CALIBRATION | |
| STANDARD(S) | Prepare fresh standards by serial dilution. |
| pH ADJUSTMENT | Adjust pH to operational range of the electrode. |
SAMPLE VARIABLES | |
| CONCENTRATION RANGE | Is the sample out of range? |
| PRESSURE | Is the sample pressure incorrect? |
| TEMPERATURE | Is the sample temperature incorrect? |
| pH | Is the sample pH incorrect? |
| INTERFERENCES | Are there interferences in the sample? |
| COMPLEXATION | Are there complexing agents in the sample? |
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