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NMD-99S Two-Wire Explosion-proof Conductivity Transmitter丨consistency transmitter丨HART7.5

  • High Precision Measurement: Accurate within ±0.02 pH for reliable water quality analysis.
  • Wide pH Range: Monitors pH levels from 0.0 to 14.0 for comprehensive environmental monitoring.
  • Robust TDS Detection: Measures TDS from 0 to 130,000 mg/L for detailed water composition evaluation.
  • Compact Design: Fits seamlessly into industrial settings with its 126*160*168mm size.

The DMD-99S transmitter is a two-wire, single-channel conductivity transmitter independently developed by Dongrun Instruments. It is available in both explosion-proof and intrinsic safety versions, and supports the Hart 7.5 communication protocol. The transmitter features a robust housing with a high protection rating, capable of withstanding harsh environments. It is compatible with Dongrun as well as commonly used contact-type two-electrode conductivity sensors in the market.

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Product Features

Better Explosion-proof Performance:

  • Optional Exdb IICT6Gb explosion-proof certification, allowing operation with a magnetic rod on the outer casing in explosive environments, ensuring safety and reliability.
  • Optional Exia IICT6 Ga intrinsic safety explosion-proof certification, compatible with safety barriers, providing a wider range of applications.

Excellent Environmental Adaptability:

  • IP66 protection rating certification, with a thickened aluminum alloy housing, making the casing more robust and weather-resistant.
  • The intrinsic safety circuit board adopts a high-insulation resin encapsulation process, offering better corrosion resistance and explosion-proof performance.
  • Temperature range: -20°C to 60°C, suitable for more application scenarios.

Two-Wire Intelligent Instrument:

  • Two-wire intelligent instrument, HART 7.5 communication protocol allows transmission of more instrument status information (official member of the HART Communication Foundation).
  • Calibration and parameter setting via two buttons, with a multi-level menu tree design, making operation simple and convenient.
  • Automatic temperature compensation, with PT100/PT1000 temperature sensors automatically recognized.
  • Compatible with Dongrun and commonly used conductivity electrodes both domestically and internationally.

High Instrument Accuracy:

  • Accuracy: ±1% of the measured value.

Application Areas

It is widely used in industrial reaction processes, phase separation, water treatment, circulating water, wastewater, boiler water, environmental protection, and other application environments.

Application Scenarios

Measurement of electrical conductivity of acids, bases and salts, measurement of electrical conductivity of media such as surface water, sewage, wastewater, etc., measurement of salinity of seawater

Applicable to various industries such as petroleum, water conservancy, and chemical engineering.

Product Feature

  • High Precision Measurement: Accurate within ±0.02 pH for reliable water quality analysis.
  • Wide pH Range: Monitors pH levels from 0.0 to 14.0 for comprehensive environmental monitoring.
  • Robust TDS Detection: Measures TDS from 0 to 130,000 mg/L for detailed water composition evaluation.
  • Compact Design: Fits seamlessly into industrial settings with its 126*160*168mm size.
  • Multiple Applications: Ideal for various industries including petrochemicals, water treatment, and pharmaceuticals.

 Industrial PH Meter Two-wire Intelligent RS485 4-20mA Digital LCD Display Wastewater Treatment Plant Drinking Water pH

To learn more about the products and the company, please click on the link.https://www.dongrun-instrument.com/

DONGRUN,Company introduction: Professional manufacturer of water quality monitoring instruments

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