Maximizing the Accuracy of Your Zero Water TDS Meter

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Written By John Roe Stephen

Among plenty of decisions you can take to improve your health, having a Zero Water TDS tester is a great choice.

Taking an accurate reading from the zero water TDS meter is the next thing you should do. Here, we list a few instructions that you can follow to increase the zero water TDS meter accuracy.

Stir The Water Sample Before Taking The Reading

The water sample must have equally spread in the cup. Also, the solid particles may deposit in the bottom of the cup. That leads to a faulty reading for you.

Usually, you may take the reading after taking the sample from tap water or the filter. Therefore, you don’t have to stir the water cup. But, if arranging the Zero Water TDS Tester takes longer, you must stir the water cup.

Stay Away From Electromagnetic Interference

You must conduct the testing in an electromagnetic interference-free area. A broken kitchen microwave, wireless telephones, and similar devices must be kept from the point of testing.

Testing The Water At Room Temperature

The use of hot or cold water may result in delivering faulty values. When you test cold water, the solid particles may not spread and get a lower value as the conductivity of the water drops.

If you test hot water, that will increase the conductivity of water. Also, that will increase the accuracy. But that can damage the Zero Water TDS Tester. It will violate the user agreement, and you won’t get the warranty coverage either.

The following table will give you a proper idea.

TemperatureOptimum RangeImpact on TDS Reading
Room Temperature20°C – 25°CMost Accurate
Below 10°CLower TDS Reading
Above 30°CHigher TDS Reading

Use Clean Water Samples Which You Take For Drinking

Remember, the Zero Water TDS Tester is not for testing all water samples worldwide. It is given to test the filtered water. Although you can make slight arrangements with that, you must not test dirty or water with particles.

Since the testing process of the Zero Water TDS Tester device involves, there can be depositions on the metal parts. That will reduce the accuracy of the results.

Keep The Meter Clean

You must keep the meter clean as much as possible. After taking a reading, you must keep the bottom clip a few minutes open to dry the tester. After that, you must cover the pop clip. The dust and other atmospheric parts may deposit on the metal surfaces and deliver inaccurate values.

Dip One Inch And No More Or No Less.

You must dip the test tube in a water cup up to the marked level. If you exceed that, the electric shocks will occur in the circuit, and if you don’t come near that margin, the value will be less accurate.  You keep your eye on the marker when doing that.

What Are the Proper Maintenance Techniques for a TDS Meter to Ensure Accuracy?

To ensure accuracy, proper tds meter maintenance is crucial. Clean the electrodes regularly using distilled water and a soft cloth to remove any buildup or residue. Calibrate the meter regularly with a calibration solution to maintain its accuracy. Store the meter in a clean and dry environment, and avoid exposing it to extreme temperatures. Following these maintenance techniques will help you get accurate and reliable readings from your TDS meter.

Reset The Tester, If It Doesn’t Reset Automatically

The tester has been designed to reset the device automatically after taking a reading. If it doesn’t reset, you can easily reset the Zero Water TDS Tester.

This is how you can do that.

  • Turn the meter on
  • Remove and then reinsert the short blue battery cap at the end of the meter (You can easily remove this part using a butter knife or a flathead screw drive)
  • Then, the device will reset automatically and turn on.


We hope you must have been able to increase the accuracy of the provided instructions. If you need more clarification, please contact Zero Water TDS assistance.

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