High Opacity Readings on Rosemount OPM2000, OPM2000A, OPM2000R, OPM2001

Components affected: LCW, liquid crystal window, lamp, barrier window, alignment, bulb, & temperature.

High opacity can come from any of the following:
[1] actual stack opacity conditions
[2] misalignment
[3] failing bulb/lamp or lamp power supply
[4] failing LCWs or LCW power supply
[5] dust on barrier window and/or corner cube
[6] steam that has changed phase to vapor

Call us to help you diagnose this.

Please provide the following:
- model number
- age of LCWs
- age of bulb/lamp
- reference voltages (8)
- current ‘run’ voltages (4)
- temperature

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