- The PCME VIEW Ex 800 / 820 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
+ Probe rod short circuit check enables operator to know when the sensing rod may be electrically shorted to the stack and avoid associated errors
- The PCME VIEW Ex 800/ 820 system is designed as fail-safe under two fault conditions, with energy limitation for intrinsic safety and galvanic isolation protection for electrical components. Sensors in the hazardous area are connected to the control unit via an intermediary isolating spur unit located in the safe area as part of the system safety design, which provides the additional benefit of easy sensor network expansion via spur unit 'daisy chaining'.
- 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