OPM 4001

The OPM4001 Opacity/Dust Density Monitor is a high performance opacity monitoring system with double-pass transmissometer that meets or exceeds Revised 40 CFR 60 B, PS-1 and ASTM D 6216
OPM 4001 Opacity Dust Density Monitor
Features

  • Digital display instant percent opacity, average percent opacity and time to next calibration
  • 3 User selectable displays (instant opacity, average opacity and optical density)
  • U.S. Environmental Protection Agency (EPA) approved approved zero/span calibration technique
  • Communications Modbus (RS-485 )
  • 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 5 years
  • Electronic modulated light source
  • Two 4-20mA signals for instantaneous opacity, and 6 minute average
  • Calibration cycle control remote, manual and timed
     

OPM 4001