Why it is Important
The graph below illustrates a TDS reading of a 500 ppm water sample tested with a non-temperature compensated conductivity meter. The same water sample appears to have a higher level of TDS when heated (and lower TDS when chilled). Actually, only conductivity readings change with temperature. TDS does not change.
Many instruments ignore the importance of temperature. Others require a separate thermometer for testing sample temperature, then manual adjustment of the meter. All Myron L instruments, however, feature fast and precise Automatic Temperature Compensation. The result: a more accurate, useful instrument.
Total Dissolved Solids (TDS) conduct electricity. This conductivity allows measurement of the concentration of these salts directly in parts per million (ppm). However, the salts’ composition in waters can vary significantly by location. Since various salts pass current differently, it was necessary to determine an “average” ppm/ conductivity relationship. The Myron L Company established the “442” Standard over 40 years ago. It remains the world’s most widely accepted standard of its kind.
Myron L offers instruments that check both TDS and pH, and are widely used throughout the RO industry.
- pH sensor is built-in for maximum protection
- Automatic temperature compensation
- Full calibration capability
- Many models available