- The PCME STACK 980 features comprehensive automatic self checks to ensure regulatory compliance and to provide plant operators with pre-emptive warning of potential sensor issues to allow preventative maintenance scheduling, lower process down times and confidence of data integrity:
+ Automated Zero and Span drift checks to enable a simplified process for operators to meet regulatory standards
+ Patented probe rod contamination check, measures and reports condition of probe-to-stack insulation ring for maintenance scheduling, before short circuit can occur
+ Probe rod short circuit check enables operator to know when the sensing rod may be electrically shorted to the stack and avoid associated errors
- Accurate emission measurement with rapid dynamic ranging allows plant operators to locate the position of leaking bags in multi-compartment bag filters. When integrated with PCME’s Predict PC software this provides ultimate arrestment plant fault finding capability:
+ Rapid dynamic ranging of 10,000:1 permits bag cleaning pulses to be accurately monitored while maintaining high accuracy in background emission measurement. Sufficient dynamic ranging is provided to follow “on-line” and “off-line” bag cleaning cycles for predictive filter failure and faulty bag location detection
+ Rolling (‘walking window’) digital average calculations for accurate emission measurement
- Standard sensors for probe electrification instruments will only perform under certain process conditions. For example, conductive particulate matter, high levels of humidity, explosive and corrosive atmospheres will present different challenges to probe electrification technologies, can cause errors in measurement or potentially damage the instrument. The PCME STACK 980 offers a range of rugged, durable sensor options to address challenging stack conditions:
+ Patented insulted sensing rod option, significantly increases the maintenance interval required for probe electrification type instruments used in humid flue gases or where conductive dusts are present, and provides unrivalled performance in process drier applications
+ Active/passive design – sensor is available with passive section between active sensing probe and stack connection stub, eliminating concerns over potential short circuits by bridging in the connection stub caused by condensation
+ Optional Hastelloy stack connection to provide enhanced galvanic corrosion protection, preserves the integrity of the electrical ground through stack connection