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Ei4200 Dew Point Monitor

Online Detection and Measurement

Available for Download

The Ei4200 Dew Point Monitor (DPM) detects and measures acid dew point and other condensables in challenging industrial conditions. The direct measurement of the process gas dew point provides plant and process operations with information that would otherwise be a multi-variable equilibrium problem that is neither elementary, nor precise. Ei4200 DPM technology removes the guess work and provides real-time feedback.

Product Details

Ei4200 Dew Point Monitor Features

  • Probe
    • 316 stainless steel standard, Hastelloy optional*
    • Houses sensor, heater, cooling line, & particulate blower
  • Sensor Assembly
    • Durable Hastelloy housing*
    • Field replaceable*
  • Pneumatic, Electrical, and Communications Bundle with custom lengths
  • Control Cabinet that houses pneumatic controls, electronics, & HMI
  • Communications
    • Modbus or 4-20 mA signal
    • Integrated remote access capabilities*
  • Sensor Temperature Control System
    • Tightly controlled with proportional valve
    • Feedback sensor for cooling air flow*
  • Integrated Sensor Heater: internal to sensor, not exposed to process gas*
  • Integrated HMI with InteliSense™ Software*
  • Standby Mode* to protect sensor during downtime or system upsets
  • Data Processing
    • Automatic data processing and interpretation*
    • Customizable alarm settings*
  • Automatic leak check*: pressure sensor detects system leaks
  • Automatic zero correction* to reduce baseline drift

*New Feature


Optional Components & Features
  • Automatic sensor cleaning
    • For high particulate applications
    • Pre-heated air blows off sensor surface
  • Flange Assembly to minimize process gas leaks during probe insertion/removal
  • Hastelloy probe* for highly corrosive applications

*New feature


Wall Mount

Ei4200 Dew Point Monitor Technical Specifications

Technical specifications

Typical Applications for Ei4200 Dew Point Monitor

The Ei4200 DPM is ideally suited to detect and measure the acid dew point in all industrial applications within the operating temperature range of the instrument.

Applications include:

  • Sulfuric Acid Production
  • Copper Smelters
  • Coal-Fired Utilities
  • Refining and Petrochemical
  • Pulp & Paper
  • RTO’s and Biomass
  • Gas Turbines Combined Cycle

Available Measurements for Ei4200 Dew Point Monitor

The instrument reports a multitude of information variables to the plant control room via Modbus or 4-20 mA signal. Examples of reported data include:

  • Dew Point
  • Estimated SO3 Concentration
  • Process Temperature

Related Products

Ohio Lumex logo in white


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