![\"pH-meter\"](\"https:\/\/www.pedak.nl\/wp-content\/uploads\/2022\/02\/PH-50-300x271.jpg\")
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We are specialists in measurement technology. We are here to help you with Aw value meters<\/a>, data acquisition<\/a>, displays<\/a>, hand-held meters, infrared temperature meters<\/a> or climate sensors<\/a>.<\/p>\n In this manual, we share information and tips on pH meters.<\/strong><\/p>\n If you need further information or would like individual advice about the best measuring solution for your issue, then please contact Mieke de Kunder. She\u2019d be happy to advise you. Call: +31 6 28382690 or send an email to m.dekunder@pedak.nl<\/p>\n The right meter This manual focuses on pH meters.<\/p>\n The right electrode for your pH measurement The electrode is the most vulnerable part of the pH meter. Regular maintenance of the electrode is not only essential for delivering accurate measuring results, it also extends its lifespan.<\/p>\n These tips will ensure you get the most out of your pH meter for a long time:<\/p>\n How do I calibrate my pH meter? Pay close attention to the shelf life of your calibration solutions.<\/p>\n STEP 1 <\/strong><\/p>\n Rinse the electrode thoroughly with demineralised water and place it in the pH 7 buffer solution. It is not a problem if your meter shows a measuring error. By calibrating and adjusting (step 2) the instrument you can make sure that your readings are accurate and reliable.<\/p>\n STEP 2<\/strong><\/p>\n Follow the instructions that came with the meter to calibrate and adjust it. Once you have calibrated the instrument, you can start taking readings. How often do I need to calibrate my pH meter? The longer the meter is used, the older the fluids in the electrode become and the more measurement errors will occur. You may also need to calibrate the instrument more often according to how you use it and the type of products you measure. We recommend performing a calibration at least twice a month.<\/p>\n \u00a0When do I need to calibrate more often?<\/strong><\/p>\n If your measurement is unstable or slow or if the pH value keeps fluctuating, There are errors in the measurement results<\/p>\n According to the specifications, measuring equipment may show errors. By measuring equipment, we mean the two buffer solutions, temperature readings, the pH electrode itself and the hand-held device. Buffer fluids 1: \u00b1 0.01 In practice, an accuracy of 0.03 can be expected. Do you have any questions or are you still experiencing problems? Please contact us via info@pedak.nl or call: +31(0) 475 497424.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" We are specialists in measurement technology. We are here to help you with Aw value meters, data acquisition, displays, hand-held meters, infrared temperature meters or climate sensors. In this manual, we share information and tips on pH meters. If you need further information or would like individual advice about the best measuring solution for your […]<\/p>\n","protected":false},"author":2,"featured_media":13270,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-13361","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"\n
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\n1. Choose the right meter and electrode<\/h2>\n
\n<\/strong>If you wish to measure several values, then it may be wise to choose a meter that can be connected to different electrodes. Besides electrodes that measure pH value, multimeters let you connect temperature probes, Ion-selective electrodes, Redox probes, etc.
\nFor example, if you need to measure the conductivity of salt, then our range includes a suitable meter to do just that. We\u2019d be happy to advise you.<\/p>\n
\n<\/strong>The choice of electrode depends on the product or substance whose pH value you need to measure.
\nFor example, an electrode with a pointed tip is designed to measure the pH of sausages or other solid products or substances, whereas a rounded electrode is better for liquids.<\/p>\n
\n2.General tips on maintaining the pH meter electrodes<\/h2>\n
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\n<\/span>Keep your pH electrode in storage solution and ensure it always remains moist. Do not<\/u> store the electrode in demineralised water or other liquids as these are not suitable.<\/li>\n
\n<\/span>This can damage the electrode which could cause discrepancies in your measuring results. Therefore, always wear gloves.<\/li>\n\n
\n3. Calibration of the pH meter<\/h2>\n
\n<\/strong>Calibrating a pH meter goes as follows:<\/p>\n\n
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\nThe pH meter will now give a reading. The further away the reading is from pH 7, the greater the inaccuracy of the measuring instrument.<\/p>\n
\nRinse the electrode with demineralised water and calibrate the next point.
\nCalibrate at least two points.<\/p>\n
\nPlace the electrode in storage solution after use.<\/p>\n
\n<\/strong>If you are unsure often you need to perform a calibration, place the electrode in the buffer solution with the appropriate pH value. If the meter shows the correct pH value, then calibration is not necessary. If you make a note of how many readings it takes before the values start to deviate, then you will know when you need to perform a calibration.<\/p>\n\n
\n4. Problems with calibration<\/h2>\n
\n<\/strong>then the possible causes and solutions are as follows:<\/p>\n\n
\nThe final error is the sum of the whole measuring system.
\nIn the worst case, the error may be \u00b1 0.05:<\/p>\n
\nBuffer fluids 2: \u00b1 0.01
\nTemp measurement: \u00b1 0.01 (depending on temperature and pH value)
\npH electrode: \u00b1 0.01
\npH meter: \u00b1 0.01<\/p>\n
\nThe repeatability of a measurement is approximately 0.01.<\/p>\n
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