84. A wet scrubber connected to fuel burning equipment with a rated power equal to or greater than 3 MW must have a system that continuously measures and records the gas pressure loss through the scrubber using a differential pressure gauge accurate to within 0.5 kPa.
In addition, the wet scrubber must have a system that continuously measures and records the scrubbing liquid pressure at the delivery pipe inlet using a pressure gauge accurate to within 10% of the rated pressure in that pipe.