QAL1 APPROVED PM-CEM QAL1 approved particulate CEM providing high quality emission measurement for low dust concentrations from dry industrial processes including baghouses and cartridge filters FEATURES AND BENEFITS Robust design unaffected by build-up on the sensor rod No additional services such as air purge required, for lower cost of ownership Networking of sensor channels and providing multiple inputs for external devices such as temperature, pressure and O2 normalisation Automatic recording of drift checks (zero and span) to satisfy QAL3 requirements

SPECIFICATIONS QAL 991 Application Conditions Measurement range Certification range 0–7.5 mg/m³, 0–15 mg/m³ (extended range) Long term zero drift Stack temperature range Ambient temperature range Stack/Duct diameter QAL 991 Sensor Specification Material 316 Stainless Steel / PEEK/Sialon (insulator) Enclosure Protection rating Enclosure material Die-cast aluminium (polyester powder coated) 158 x 197 x 107 mm (6.2 x 7.8 x 4.2”), incl. cover lid hinges and cable glands 1x RS-485 connection (to control unit) 1x 4-20 mA (via the control unit) Outputs Power Requirements 18–24 V DC (from the control...