TDS Sensor and Meter

TDS meter is a water quality analysis device used to indicate the total dissolved solids in a solution (usually water). Since dissolved ionized solids (such as salts and minerals) increase the conductivity of a solution, a TDS meter can also measure the conductivity of a solution and estimate the TDS from that reading. TDS meters typically quantify this conductivity in microsiemens or ppm. There is tds meter with data logging function and tds sensor for ro system.

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Pokcenser Automation Technology Co., Ltd

Mobile: +86 181 7515 5326

Email: info@pokcenser.com

Tel: +86-731-8229 9492

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PT6500 Online TDS Meter Controller

Features

  • Full-color screen, multi-line display
  • Data logging/trend chart display
  • Three sets of relay control switches
  • High limit, low limit, hysteresis control
PT6500 Online TDS Meter Controller
PT6500 Online TDS Meter Controller
PT6500 Online TDS Meter Controller

Applications

  • General application
  • Drinking water
  • Environmental sewage
  • River and lake water quality
  • Food, tap water
  • Electroplating
  • Aquaculture
  • Modern agricultural planting
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Advantages

  • 4-20mA/RS485 multiple connection methods
  • Password protection to prevent non-staff from misoperation
  • Multiple automatic calibration functions

The online tds sensor 4-20ma output and RS485 communication is typical specifications of our tds meter with multiple ranges. TDS meter with automatic temperature compensation is ideal for reliable and accurate measurement of Total Dissolved Solids.

Resources

Datasheet

File NameTimeTypeDownload
PT6500 Online TDS Meter ControllerSep 28, 2025PDF

Technical Parameters

ModelPT6500
Temperature-10～150 ℃(According to electrode)
Temperature Resolution0.1℃
Temperature Error±0.3℃
Temperature Compensation Range0～150℃
Temperature CompensationAutomatically or manually
Current Output2 channels of 4～20mA, 20～4mA, 0～20mA
Communication OutputRS485 Modbus RTU
Other FunctionData logging/Trend charting
Relay Control ContactThree groups: 5A 240VAC; 5A 28VDC or 120VAC
Optional Power Supply85～265VAC; 9～36VDC. Power: ≤3W
Working EnvironmentNo strong magnetic field interference around except the earth's magnetic field
Ambient Temperature-10～60℃
Relative Humidity≤90%
Protection LevelIP65
Instrument Weight1.5kg
Instrument Dimensions235 × 185 × 120mm
Instrument Installation MethodWall mounted

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