fisher_acumet
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fisher_acumet [2023/01/05 22:59] – [About] haley | fisher_acumet [2023/01/05 23:05] – [Safety Concerns] haley | ||
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conditioned and used in accordance with manufacturer’s | conditioned and used in accordance with manufacturer’s | ||
instructions." | instructions." | ||
+ | |||
+ | " | ||
+ | calibrate your pH meter and electrode to compensate for electrode | ||
+ | variation. The more frequently you standardize or calibrate, the more | ||
+ | accurate your measurements. Standardize at least daily, or more | ||
+ | often, for accurate results." | ||
---- | ---- | ||
===== Operating Procedures ===== | ===== Operating Procedures ===== | ||
+ | |||
+ | __Setup__ | ||
- Connect electrode arm to the base | - Connect electrode arm to the base | ||
- Connect power cable to outlet | - Connect power cable to outlet | ||
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- Rinse and blot-dry (don’t wipe) electrodes between each measurement using DI water. | - Rinse and blot-dry (don’t wipe) electrodes between each measurement using DI water. | ||
- Between measurements, | - Between measurements, | ||
+ | |||
+ | __Standardization__ | ||
+ | |||
+ | - Press and release the mode key until your digital display indicates pH mode. This key toggles between the pH, mV and Rel mV modes. | ||
+ | - Press the setup key twice and then press the enter key to clear an existing standardization. | ||
+ | - Rinse the electrode with distilled water using a squeeze bottle and immerse the rinsed electrode into pH 4 (pink) buffer solution. | ||
+ | - Press std again to access the Standardization mode. The selected buffer group is displayed briefly. Wait for the reading to stabilize. | ||
+ | - Press std again to initiate standardization. The meter will automatically recognize the buffer (4.00 not 7.00) and then return to the Measure screen. | ||
+ | - Repeat steps 3-6 with the pH 10 (blue) buffer solution. When the meter accepts the second , pH 10, buffer solution, it will briefly display the percent slope associated with the electrode’s performance prior to returning to the Measure mode. If the electrode is within the range of 90 – 102%, the GOOD ELECTRODE message will appear. | ||
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fisher_acumet.txt · Last modified: 2023/01/05 23:09 by haley