Apera Instruments

The frequency that you should calibrate your pH meter depends on many factors such as the type of your test samples, performance of electrodes, and the requ...

Er1 will usually appear on the screen when users dip the probe into the wrong calibration solutions. For example, for pH calibration, the 1st point calibrat...

All of our instruments are pre-calibrated before they are shipped. An easy determination is to look at the bottom of your LCD screen (follow manual instruc...

The "white salts" are the Potassium Chloride (KCL). They can come from the storage solution in the cap or the inner reference solution in the pro...

The fill line on the probe cup is the minimum volume for test sample solution in the probe cap, not for the storage solution. We wouldn't recommend sto...

Electrical Conductivity (EC) is the ability of a solution to conduct electric current. Therefore conductivity is used to measure the concentration of dissol...

Make sure your standard buffer solutions are in good condition (fresh and uncontaminated) Make sure your standard buffer solutions are at room temperat...

Answer: There are 2 ways to power on your tester, and one of those ways will lead you to the Settings Menu for your meter. This happens when you hold the p...

If you see that question, please Exit out of that setting right away, as you will not need to use that prompt.   First, simply turn on your Bluetooth feat...