OPM 4000 Opacity Dust Density Monitor - EPA Compliant

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The OPM 4000 Opacity Dust Density Monitor is a high-performance opacity monitoring system with double-pass transmissometer that meets or exceeds Revised PS-1 and ASTM D 6216-98.

FEATURES Digital display: instant percent opacity, average percent opacity and time to next calibration Alphanumeric display for system set-up and fault diagnostics display 3 bar graphs: instant opacity, average opacity and window dust U.S. Environmental Protection Agency (EPA) approved zero/span calibration technique Communications: Modbus (RS-485 ) Stack exit correlation: permanent factory setting and field-adjustable Sensor location service module: digital display for percent correlated opacity, T2, manual zero and span initiate and transceiver current loop test jacks Insensitive to ambient light Double pass optical system Thru-the-lens (TTL) alignment Light source rated for greater than 6 years Electronic modulated light source Customer selectable averager Calibration cycle control: remote, manual and timed System and fault diagnostics display Measures from 3 to 53 ft. (1-16M)

Emerson’s Rosemount Analytical OPM 4000 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. Emerson has taken the approach to design equipment with accuracy, maintenance and serviceability as the most important features. The Rosemount Analytical OPM 4000 Opacity Dust Density Monitor is designed with state-of-the-art modular packaging that keeps ease-of-service in mind. The OPM 4000 offers a built-in TTL (through-the-lens) alignment system, where the alignment target can be viewed through a window on the transceiver. Adjustments to changes in alignment are provide by a 3-point alignment system that is integral to the air plenum. This ensures optimum reliability while enabling the system to be easily serviced and maintained in the field by plant service personnel. SERVICE MODULE WITH DIGITAL DISPLAY The service module is used to pass signals to and from the transceiver and control unit, display opacity via digital meter, initiate maintenance zero and span cycles and insertion of external current meter in the transceiver to control unit 4-20 mA loop. The service module is very useful for trouble shooting or during environmental audits as the correlated opacity can be displayed on the DPM. This feature eliminates the necessity for a second person and sometimes difficult communication between the control unit and the sensor locations. SWING AWAY SENSOR The swing away sensor makes cleaning the windows a breeze. Both sensors have alignment pins to assure no change in alignment after the sensors have been opened and closed. Large, heavy-duty latches make for a airand water-tight seal. The sensors are attached to the air plenum by two drop-on pivot pins. This makes for easy installation. Should service ever be required, the sensors can be removed; just swing open and lift-off the pivot pins.