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MRU - Model SWG 300 IND -Continuous Emission Monitoring System (Indoor)
Low sample flow extraction of only 50 l/h, to enhance the operation of sample gas preparation. Use of optimized NDIR technology with improved accuracy and without zero offset. O2 measurement with a long-life electrochemical or a paramagnetic sensor. True NOx and SO2 measurements through use of heated gas sampling probe and gas sampling line. Heated and temperature regulated acid mist catch & drain system for raw flue gas measurements with high acid aerosols. Complete heavy duty sample conditioning system for extractive cold and dry system. Ready to log, display and transfer data from dust concentra- tion monitor DM 401 and flow rate monitor DF 252.
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- IP54 steel cabinet 630 x 1.012 x 612 mm (W x H x D), with grey powder coating laquer, for wall mounting
- With lockable acrylic front door and fan ventilation through the cabinet for use in clean ambient air
- M&C Peltier gas cooler with dual heat exchanger with double automatic condensate draining pumps
- Efficient sample gas filtration using PTFE sintered particulate filter
- Condensate monitoring and alarm on display and gas sampling stop in case of alarm
- Prepared for 10 % H3PO4 dosage in case of auto-cal or low SO2/NO2 measurements
- Strong sample gas pump with sample gas flow monitoring and alarm
- Filtration of acid gases to protect the internal sample gas flow sensor
- Solenoid valve for auto-zero with clean ambient air
- Solenoid valve for calibration gas, with aluminum fine pressure regulator at cal. gas inlet port
- Main control unit 19" – 4U with human machine interface, prepared for measurement modules
- Human machine interface with color TFT display, keyboard and standard RS485 interface (Modbus RTU)
- Intuitive software guided menu, with diagnosis software and real-time data transfer
- Power supply to analyser with 230 Vac / 47–63 Hz /200 W (add electric power for probe and heated sampling line)
- Clean indoor mounting place, preferably air conditioned, cabinet has fan ventilation
- Outdoor mounting in clean, +5 °C to 45 °C ambient, with mandatory sun & rain protection (user scope)
Measuring range
- NO: (infrared) 0 ... 200/4.000 ppm
- NO2: (infrared) 0 ... 150/1.000 ppm
- SO2: (infrared) 0 ... 150/4.000 ppm
- CO2: (infrared) 0 ... 50 %
- CO: (infrared) 0 ... 175/10.000 ppm
- N2O: (infrared) 0 ... 100/500ppm
- CH4: (infrared) 0 ... 500/10.000ppm
- C3H8: (infrared) 0 ... 200/5.000ppm
- O2: (electrochemical or paramagnetic) 0 ... 25 %
- H2S: (electrochemical) 0 ... 2.000/5.000ppm
- H2: (electrochemical) 0 ... 1.000/2.000ppm
Dimensions and other data
- Calculated components: NOx: NO + NO2, calculated ppm or mg/m3, user-selectable O2 reference
- Zero point deviation: Negligible due to automatic zeroing
- Data storage: Data storage and data logger on SD card
- Gas conditioning: Thermoelectrical gas cooler, with dual heat exchanger and constant +4 °C dewpoint
- Gas sampling probe: HD gas sampling probe, heated ceramic filter with backpurge, or gas sampling probe HD-GW, heated glass wool filter
- Gas sampling tube: Gas sampling tube for insertion in the stack various lengths and materials
- Gas sampling line: Heated gas sampling line for probe HD or HD - GW - length 3 m - Internal PTFE 4/6 mm hose - 230 Vac heater power supply and 100 W / meter power consumption
- PC-interface: DIN rail RS 485, to ProfiBus converter or to Ethernet converter
- Operating temperature: +5 ... +45 °C or –10 ... +45 °C with cabinet heating
- Power supply: Universal: 90 ... 240 Vac, 47 ... 63 Hz, 200 W (700 W with heating)