40 years MRU

SWG 200 CEM Stationary gas analysis system for continuous process gas and emission monitoring

O2 NO NO2 SO2 CO2 CO CH4 H2S H2

Outstanding benefits:

  • Use of optimized NDIR technology with improved accuracy without zero point drifts
  • O₂ measurement with an electrochemical or a paramagnetic sensor
  • Automatic zero point in clean ambient air through separate calibration gas inlet
  • Automatic calibration for up to four gas cylinders
  • Double stage Peltier gas cooler with two automatic condensate pumps
  • Cold/dry gas extraction at a low flow volume of 1 l/min
Basic-Equipment
  • Stainless steel cabinet with monitored fan ventilation
  • Included dual heat exchanger Peltier gas cooler with two automatic condensate draining pumps
  • Efficient sample gas filtration using PTFE sintered particulate filter
  • Regulated 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 aluminium fine pressure regulator at cal. gas inlet port
  • Human machine interface with colour TFT display, keyboard and standard RS485 interface (Modbus RTU)
  • All password protected, intuitive software guided menu, with diagnosis software and logbook
  • Power supply analyser only 230Vac / 47-63Hz / 120W (110Vac power supply on request)
  • Total length of all heated sampling lines more than 60m, requires 3-phase power supply (L1 ; L2 ; L3 ; N ; PE)
  • Clean indoor mounting place, preferably air conditioned
  • Outdoor mounting place in clean, +5°C to 45°C ambient, with mandatory sun & rain protection (user scope)
Technical Data
Measuring range
O2 (electrochemical) 0 ... 25 %
O2 (paramagnetic) 0 ... 25 %
NO (NDIR) 0 ... 200/4.000 ppm
NO2 (NDIR) 0 ... 150/1.000 ppm
SO2 (NDIR) 0 ... 150/4.000 ppm
CO2 (NDIR) 0 ... 40 %
CO (NDIR) 0 ... 200/10.000 ppm
N2O (NDIR) 0 ... 100/500 ppm
CH4 (NDIR) 0 ... 500/10.000 ppm
C3H8 (NDIR) 0 ... 200/5.000 ppm
H2S (electrochemical) 0 ... 2.000, overload < 5.000 ppm
H2 (electrochemical) 0 ... 1.000 ppm, overload < 2.000 ppm
Dimensions and other data
Zero point deviation negligible due to automatic zeroing
Deviation less than 0.2% of the measuring range per month
Calculated components NOx: NO + NO₂, calculated ppm or mg / m3, user-selectable O₂ reference
combustion calculations (efficiency, heat loss) on special request
Display Illuminated 3.5 "TFT color display
Interfaces Illuminated keyboard, password-protected operation
4 analog outputs 4 ... 20 mA, galvanically isolated, max. load: 500 R
2 alarm relays, potential-free contacts: 24 Vdc, 5 A
Data storage and data logger on SD card
RS 485 digital interface (Modbus RTU
DIN rail RS 485, to ProfiBus converter or to Ethernet converter
Gas sampling probe HD gas sampling probe, heated ceramic filter with backpurge,
or gas sampling probe HD-GW, heated glass wool filter,
or LD gas sampling probe, unheated with in-situ sintered metal filter,
heated or unheated gas sampling line, PTFE DN 4/6 mm
Gas conditioning Thermoelectric gas cooler (Peltier) with constant +4 ° C dew point
Teflon particle filter, internal Viton tubing
Monitored and regulated gas sampling pump
Constant gas flow of 50 l/h
Gas inlet pressure: -200 ... +20 mbar (hPa)
Sample gas outlet: atmospheric pressure
Housing Stainless steel housing, continuously monitored housing ventilation with alarm, antifreeze heater 200 W (option)
Operating temperature (+5 ... +45 °C) or (-10 ... +45 °C) with housing heating
Power supply Universal: 90 ... 240 Vac, 47 ... 63 Hz, 120 W (420 W with heating)
Protection IP 54
Dimensions (B x H x T) 700 x 600 x 210 mm, suitable for wall mounting
Weight approx. 50 kg