Liquatec PM-3000 TDS Pocket Meter

Price $100.00
Availability: Out of stock
The Liquatec PM-3000 TDS Pocket Meter measures total dissolved solids in water from 1 to 2,999 ppm (part per million). The PM-3000 Pocket TDS Meter comes with a plastic carrying case for easy transport and safe storage. With its extended range of 1-2,999 ppm, the Liquatec PM-3000 meter can work with most any well water application without the need of two different meters. Obtain reliable and accurate measurements of your water source with the PM-3000. Ideal for water treatment as well as other industrial and commercial application. This model is lightweight and simple to operate. The PM-3000 auto shut-off function shuts the meter off automatically after 15 minutes of non-use to conserve batteries. The Liquatec PM-3000 TDS Meter display is a large and easy-to-read LCD screen. The Liquatec PM-3000 TDS Meter is factory calibrated so recalibration is not necessary for initial testing. Recalibration can be done easily with a watch screwdriver. Recalibration instructions are included with the TDS Meter. The Liquatec Total Dissolved Solids Meter can be used in the following applications: 1. Water Purification 2. Reverse Osmosis 3. Distillation 4. Deionization 5. Pool & Spa Maintenance 6. Aquariums 7. Plating Industry 8. Cooling Towers & Boilers 9. Photographic Labs. The EPA Secondary Regulations recommend a maximum contamination level (MCL) of 500mg/liter (500 ppm) for Total Dissolved Solids. Many water supplies exceed this TDS level. When TDS levels exceed 1000mg/L it is usually considered unfit for human use. After reverse osmosis, distillation, deionization, and microfiltration, the TDS level should be less than 50 ppm. Test your incoming water supply and the treated water to determine how much Total Dissolved Solids are being removed from the water. At least 80% of the TDS in your water should be removed. If the TDS rejection is less than 80%, it is time to change your RO membrane. Simple to use for Reverse Osmosis membrane monitoring. Measure the incoming water and the RO water. Divide the larger number into the smaller number and subtract that decimal from 1. The resulting decimal is the percent of TDS that the membrane is removing. Anyone who wants to know about the quality of their water should have one of these TDS Meter Testers. Total dissolved solids (TDS) are the total weight of all solids (minerals, salts or metals) that are dissolved in a given volume of water expressed in milligrams per liter (mg/L), or in parts per million (ppm). The lower the TDS level in the water, the more efficiently your body's cells actually get hydrated by the water that you drink. The higher the TDS levels in the water, the greater the probability of harmful contaminants that can pose health risks or hinder the absorption of water molecules on the cellular level. 17 PPM of TDS = 1 grain of hardness.


  1. Remove the probe cap, and press the button. The LCD will display '000'. Dip the PM-3000 into the sample
  2. Stir gently to remove any air bubbles, and then wait for the reading to stabilize. Remove the meter from water to obtain TDS reading
  3. The meter has an auto reading hold function to keep reading on LCD until next measurement or power is off
  4. During stabilization the TDS movement should be minimal. For a new measurement, press button to clear reading
  5. The LCD will display '000'. After measuring, gently shake the meter 2-3 times to remove any residual water from the probe before putting the cap on
  6. The meter automatically shuts off after approximately 15 seconds from power-on
  7. Always rinse the TDS meter with distilled water and dry after each test. To turn off the meter manually, press the button for approximately 3 seconds. Replace probe cap

Reset Instructions