The Truth About TDS Meters: Debunking Common Myths

The Truth About TDS Meters: Debunking Common Myths

ROC-2315 ro controller instruction (220V)
Model ROC-2315
Single detection Dry Contact input Raw water no water protection
(six channels) Low-pressure protection
  High-pressure protection
  Pure water tank high level
  External control mode signal
  Running reset
Control port Dry Contact output Raw water pump SPST-NO low capacity : AC220V/3A Max ;AC110V/5A Max
(five channels) Inlet valve  
  High pressure pump  
  Flush valve  
  Conductivity over-limit drainge valve  
Measurement detection point Product water conductivity and with Automatic Temperature compensation (0~50)℃
Measurement range Conductivity : 0.1~200μS/cm/1~2000μS/cm/10~999μS/cm (with different conductivity sensor )
Product water temp. : 0~50℃
Accuracy 1.5 level
Power supply AC220V (±10%) , 50/60Hz
Working environment Temperature:(0~50)℃ ;
Relative Humidity :≤85%RH (no condensation )
Dimension 96×96×130mm( height ×width×depth)
Hole size 91×91mm(height ×width)
Installation Panel mounted ,fast installtion
Certification CE

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TDS meters have become increasingly popular in recent years, especially among those concerned about the quality of their drinking water. These devices are designed to measure the total dissolved solids (TDS) in water, providing users with an indication of its purity. However, there are several common myths surrounding TDS meters that need to be debunked in order to gain a clearer understanding of their limitations and usefulness.

Instrument model FET-8920
Measurement range Instantaneous flow (0~2000)m3/h
Accumulative flow (0~99999999)m3
Flow rate (0.5~5)m/s
Resolution 0.001m3/h
Accuracy level Less than 2.5% RS or 0.025m/s.whichever is the largest
Conductivity >20μS/cm
(4~20)mA output Number of channels Single channel
Technical features Isolated,reversible,adjustable, meter/transmission dual mode
Loop resistance 400Ω(Max), DC 24V
Transmission accuracy ±0.1mA
Control output Number of channels Single channel
Electrical contact Semiconductor photoelectric relay
Load capacity 50mA(Max), DC 30V
Control mode Instantaneous amount upper/lower limit alarm
Digital output RS485(MODBUS protocol ),Impulse output1KHz
Working power Power supply DC 9~28V
source Power Consumption ≤3.0W
  Diameter DN40~DN300(can be customized)
Working environment Temperature:(0~50) ℃; Relative humidity: ≤85%RH(none condensation)
Storage environment Temperature:(-20~60) ℃; Relative humidity: ≤85%RH(none condensation)
Protection grade IP65
Installation method Insertion pipeline installation

One of the most common misconceptions about TDS meters is that high TDS levels indicate poor water quality. While it is true that certain dissolved solids, such as heavy metals or harmful chemicals, can negatively impact water quality, not all dissolved solids are harmful. In fact, many essential minerals like calcium and magnesium are considered dissolved solids and are beneficial to human health. Therefore, it is important to assess TDS levels in conjunction with other water quality parameters to get a comprehensive understanding of water purity.

Another myth surrounding TDS meters is that they can accurately measure the presence of specific contaminants in water. TDS meters are not designed to identify the types of dissolved solids present in water, but rather provide a general estimation of their concentration. In order to determine the specific contaminants in water, additional testing using specialized equipment is required. Therefore, relying solely on TDS meters may not provide a complete picture of water quality.

Furthermore, some people believe that TDS meters can be used to determine the effectiveness of water filtration systems. While TDS meters can give an indication of the reduction in dissolved solids after filtration, they do not provide information about the removal of specific contaminants. Water filtration systems are designed to target specific contaminants, and their effectiveness should be evaluated based on independent laboratory testing rather than TDS Meter readings.

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It is also important to note that TDS meters have limitations when it comes to accurately measuring TDS levels in certain types of water. For example, TDS meters may not provide accurate readings in the presence of high levels of organic matter or colloidal particles. In such cases, alternative testing methods should be utilized to ensure accurate assessment of water quality.

In conclusion, TDS meters can be useful tools for assessing the general purity of water by measuring the concentration of dissolved solids. However, it is crucial to understand their limitations and not rely solely on TDS meter readings to determine water quality. High TDS levels do not necessarily indicate poor water quality, and additional testing is required to identify specific contaminants. Water filtration system effectiveness should be evaluated through independent laboratory testing rather than relying on TDS meter readings. By debunking these common myths, we can gain a better understanding of the role TDS meters play in assessing water quality

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