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PCME Stack 990 ·
The PCME Stack 990 is an approved particulate measurement system for continuously monitoring emissions from industrial sources. It is predominantly used to monitor particulate emissions in stacks after bag filters, cartridge filters, cyclones and process driers. The instrument combines regulatory approvals (MCERTS and TUV BlmSchV 17 and 13) for both dust measurement and leak monitoring, with reliable automatic quality assurance features, rugged operation and advanced diagnostics capability for managing and improving the operation of bagfilter arrestment plant. The Stack 990 Plus is a multi-sensor networked system (up to 16) for multi-stack and plant wide monitoring.
• MACT compliant Bag Leak Detector • Network system for 1-16 sensors plus additional 16 calculated channels • Advanced sensor design includes zero, span and unique contamination checks • Powerful graphical user interface with data logging for reporting
(eg Mass or normalise concentration)
PCME Stack 990 includes an advanced level of automatic functionality checks to provide high quality assurance: • A probe rod short circuit check – enables the operator to know when the sensing rod may be electrically shorted to the stack and avoid associated errors. • A patented probe rod contamination check provides the operator with a pre-warning check of possible probe short circuit enabling predictive sensor maintenance scheduling, lower down times and confidence of signal quality. • Automatic electronic zero and drift checks - improves measurement reliability and ensures that the instrument is in compliance to regulatory standards (TUV, MCERTS, US EPA MACT). These checks are done in the sensor to ensure the major part of the instrument is challenged during these tests. The system includes advanced signal processing and diagnostics to permit a plant operator to locate the position of leaking bags as well as improve the quality of emission measurement: • Rapid dynamic ranging of 10,000 :1 permitting bag cleaning pulses to be accurately monitored while maintaining high accuracy in background emission measurement. Sufficient dynamic range is provided to follow "on-line" and "off-line" bag cleaning cycles for predictive filter failure and faulty bag location detection. • Rolling digital average calculations for accurate emission measurement.
A range of ruggedized sensor options for challenging stack applications are also available: • A patented insulated sensing rod option for use in high humidity and condensing gas applications. This gives the instrument unrivalled performance in process drier applications. • An active/passive design to eliminate any concerns or effects of condensation in the stack connection stub. • Enhanced corrosion protection (wetted parts).
