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| Description | Scattered light dust measuring devices |
| Measured values | Scattered light intensity, dust concentration (after gravimetric comparison measurement) |
| Performance-tested measurands | Scattered light intensity |
| Measurement principles | Scattered light backward |
| Process temperature | –40 °C ... +600 °C |
| Process pressure | With MCU-P control unit: –50 hPa ... 2 hPa With external purge air unit: –50 hPa ... 30 hPa |
| Duct diameter | ≥ 0.5 m |
| Conformities | Approved for plants requiring approval 2001/80/EC (13. BImSchV) 2000/76/EC (17. BImSchV) 27.BImSchV TA-Luft (Prevention of Air Pollution) EN 15267 EN 14181 MCERTS 2010/75/EU |
| Enclosure rating | IP 66 |
| Interfaces and bus protocolsEthernetModbus TCP (via optional interface module)EthernetOPC (via optional interface module)EthernetSOPAS ET (via optional interface module)RS-485Modbus RTU (via optional interface module)RS-485PROFIBUS DP (via optional interface module)RS-485SOPAS ET (via optional interface module)USBSOPAS ET | |
| Test functions | Automatic self-test (linearity, contamination, drift, aging) Contamination limit values: warning at 20%, fault at 30% Manual linearity test with reference filter |