The PCME Wet Stack 181 is suitable for measuring particulate emissions from wet scrubbers and other processes where the flue gas falls below the dew point (cold stack conditions) or has water droplet presence. The extractive instrument takes a representative continuous sample from the stack, heats this well above dew point and evaporates any water droplets to enable measurement of the particulate concentration under dry conditions. This extractive approach with heating overcomes the problem of interference from condensation and water droplets when using an in-situ particulate monitor after wet collectors.

 Key advantages of the instrument are as follows:

•   Highly sensitive (<0.1 mg/m³) and rugged instrument for measuring particulate
    concentrations in wet flues

•   Isokinetic condition automatic adjustment [requires input from external flow meter (option)

•   Automatic control and function test of all critical systems (vaporising chamber,
    light scatter unit and sampling pump)

•  Low maintenance requirements and no laborious service requirements

•  Modular design to facilitate lifting to stack location and ease of assembly

•  QAL1 approved light scatter probe, suitable for monitoring according to
    EN 14181 and PS-11

•  Automatic zero and span drift check and manual audit functionality

•  Powerful user interface and in built data logging and recording Isokinetic Sampling (option)