Datasheet | November 21, 2011

Datasheet: OPM 4000 Opacity / Dust Density Analyzer

Source: Emerson Process Management, Rosemount Analytical

Emerson's Rosemount Analytical OPM 4000 Opacity Dust Density Monitor is a high performance opacity monitoring system with double-pass transmissometer uses field-proven and time-tested optics and circuitry that is simple, yet accurate. Each monitor and all its components are of the highest quality; pre-tested at the factory to your site specifications. The simple instructions will have your monitor up and running in just a few hours


  • Digital display: instant percent opacity, average percent opacity and time to next calibration
  • Modbus Communications (RS-485)
  • Sensor location module: digital display for percent correlated opacity, T2, manual zero and span initiate and transceiver current loop test jacks
  • Thru-the-lens (TTL) alignment


  • Ease of service
  • Ease of installation

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