Essentials pH Meter

Product Information

Please note: Some of our new replacement electrodes come with just one larger cap that holds the storage solution in a little sponge against the electrode. If you have one of these newer replacement electrodes, just be sure to saturate the sponge with storage solution, loosen the threads on the cap to allow the air to escape as you press the electrode into the sponge, and then retighten the cap for storage.

pH Essentials Guide | METTLER TOLEDO pH Essentials Guide | METTLER TOLEDO

You will need to calibrate your Essentials pH Pen Meter using a Buffer 7 bottle (the meter includes a small pouch). Simply dip your meter in buffer 7, and then hold down the calibration button until the display says CAL. The Essentials pH Meter will then calibrate the device. Replaceable electrode meters like our High Accuracy pH Meter are great if you have long-term plans for testing pH. Been brewing for a while and you’re planning on keeping at it? You should get a replaceable electrode meter. But if you’re working on a one-time project or aren’t planning on using your meter for longer than a year, just go with a low-cost non-replaceable meter like our Waterproof pH meter. Either way, you need to be aware that the electrodes in your pH meter are going to wear out. pH meter electrodes are like old-fashioned candescent light bulbs: over time they just ‘burn out,’ no matter how carefully you use them. With non-replaceable electrode meters, it means you’ll need to buy a new meter in about a year’s time. But with replaceable electrode meters, it means you’re going to have to buy replacement electrodes to keep your pH meter working long term. pH Meter Electrode LifespanAnother reason to cool your sample is that electrodes degrade faster at higher temperatures, meaning shorter electrode life. And in fact, have an upper limit of functioning. You cannot use your pH meter on anything hotter than 122°F (50°C) or it will burn out. Keep a good thermometer on hand for your pH testing and wait until the sample is at room temperature (about 70°F or 21°C) for best results. Conclusion

pH Meters for Hydroponics - LED Grow Lights pH Meters for Hydroponics - LED Grow Lights

Let’s take a look at the most common mistakes we see in using pH meters and what you can do to get the most out of your meter. The Essentials pH meter is a robust, glass type pH meter. It is water and drop resistant and can even survive a dunk into a water tank and immediately retrieved without damage (Please note: it is NOT water proof and is not meant to be fully submerged on purpose). The meter is easy to use; just put the end into the solution, stir and wait for a reading. The usual time for a reading is around 20 seconds, which is time for the unit to stabilize and give an accurate result. The unit are usually good for between 1-3 years depending on the rate of sampling. In general, they should be accurate for 365 pH readings.Right about here, we really start to see how much more trouble pH meters are than thermometers: the storage and buffering solutions are essential to proper use of your pH meter, which means that any time you measure pH, it’s going to start looking like you’re playing with a chemistry set. For me, that’s a fun thing, but it certainly isn’t as convenient as a Thermapen ®. Not submerging the electrode This mistake is common and easy to fix. The pH meter reads the total electrical potential difference on the surface of the electrode, so, if half of your electrode is outside the sample solution, it’s missing half of the reading. That kind of difference is not acceptable! To make sure your electrodes are clean, use a pH electrode cleaning solution. The cleaning solution is balanced for the electrode and is a great way to make sure you get accurate and fast readings every time. Use the cleaning solution every time you use your meter for optimal electrode life. Storing in water Essentials pH meter is designed to give highly accurate readings in 20 seconds! Convenient & easy to use, it is automatically temperature compensated and has 1-3 year life span. To prevent dehydration, be sure to fill the smaller with storage solution and secure the cap tightly over the electrode after each use. If your electrode does dry out, soak it overnight in storage solution to resuscitate it. It will probably work again, but repeated dehydration is bad for the electrode and will shorten its lifespan.