RASI 800 – Portable Emissions and Exhaust Gas Analyser, MCERTS certified

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The RASI 800 is a  portable Emissions and flue(exhaust) gas analyser which meets the MCERTS performance standards for Portable Emissions Monitoring Systems

  • MCERTS certified to Handheld Emissions Monitoring Systems (HEMS)
  • Suitable for MCPD up to 20 MW
  • Certificate Covers 02, CO, NO, NO2, SO2 and CO2% NDIR
  • Additional measurement for HC, H2S and flow
  • Built-in Electric Gas Cooler and Heated Probe
  • Wireless Control Unit and Analyser Base
  • Works with MRU4U mobile application

 

Description

The RASI 800 emissions analyser is the ideal tool for exhaust gas analysis and emissions measurement across the industry. It is MCERTS certified to Handheld Emissions Monitoring Systems (HEMS) and it is suitable for monitoring stack emissions in plants which follows under the MCDP

Analyser concept

The RASI800 portable emissions and exhaust gas analyser is made up of two separate units, the RCU which control all the function of the analyser and displasy the measurement values  and the Analsyer Base which contain all sensors and the gas gas conditioner system. The communication between the two units is via bluetooth® with a distance of up to 100 meters

RCU ( remote control unit) 

The RCU  controls  the analyser and displays the measurement values on its large 3.5″ TFT colour display. The menu can be configured with up to 4 measurement applications, for example Gas Engine, Diesel Engine, Gas Turbine and Industrial boilers. Each applications is set to display the correct parameters such as the suitable unit ( ie mg/m3 or ppm) and the correct O2 % reference which varies between applications. This greatly eliminate reporting mistake due to human errors.  The separate RCU bridges the long distance between gas sampling point and control system typical on large heating system or CHP engines.

Base Unit

The base unit is the hart of the analyser  and contains:

  • up 6 electrical cells and 1 NDIR bench to make up to 9 measurement gas.
  • Gas sample conditioner, gas sampling pump and filters
  • Peltier Gas Cooler and peristaltic pump for controlled water removal as prescribed by the environmental agencies ( EA, EPA etc)
  • Connections for heated and non heated gas sampling probes
  • CO sensor protection
  • Flow monitoring and alarms to ensure correct flow measurement rate

Measurement Capabilities

The RASI 800 offer many measurement capabilities:

O2COCO LowNO
NOLowNO2NO2LowSO2
NOxCO%  NDIRHC NDIRCO2% NDIR
PressureFlow/VelocityTemperatureDraught

 

 

Specifications

Measuring principles 
NDIR ( non dispersive infrared)CO, HC, CO2 %
EC electrochemical cellsO2, CO, NO, NO2, SO2 and H2S
Resolution± 0.1 % Vol
Gas Sample preparation
Integrated coolerHigh efficiency Peltier type gas cooler, constant 5 C dew point
Moisture removalContinuous moisture removal  using Peristaltic pump
Filtersintegrated fine particulate filter and CO filter
O2 measurement 
Range0 to 25 %
Accuracy± 0.2 % Vol
Resolution± 0.1 % Vol
CO measurement with H2 Compensation
Range0 to 20000 ppm
Accuracy± 10 ppm or ± 5 % of reading up to 4000 ppm
± 10% of reading from 1000 to 20000 ppm
Resolution1 ppm
Low CO measurement with H2 Compensation
Range0 to 300 ppm
Accuracy± 2 ppm or ± 5 % of readings
Resolution0.1 ppm
Hi CO measurement %
Range0 to 10%
Accuracy± 0.02% of rdg up to 4 %
± 10% of rdg from 4 % to 10%
Resolution0.01 %
NO measurement (option) 
Range0 to 5000 ppm
Accuracy± 5 ppm or ± 5 % of reading up to 1000 ppm
± 10% of reading from 1000 to 5000 ppm
Resolution1 ppm
Low NO measurement (option) 
Range0 to 500 ppm
Accuracy± 2 ppm or ± 5 % of reading
Resolution0.1 ppm
NO2 measurement (option) 
Range0 to 1000 ppm
Accuracy± 5 ppm or ± 5 % of reading up to 200 ppm
± 10% of reading from 200 to 1000 ppm
Resolution1 ppm
Low NO2 measurement (option) 
Range0 to 100 ppm
Accuracy± 2 ppm or ± 5 % of reading
Resolution0.1 ppm
SO2 measurement (option) 
Range0 to 5000 ppm
Accuracy± 10 ppm or ± 5 % of reading up to 2000 ppm
± 10% of reading from 2000 to 5000 ppm
Resolution1 ppm
H2S measurement (option) 
Range0 to 2500 ppm
Accuracy± 5 ppm or ± 5 % of reading up to 50 ppm
± 10% of reading above
Resolution1 ppm
CO2 NDIR measurement for emissions (option) 
Range0 to 40%
Accuracy±0.3 % of Volume  or ± 5 % of reading
Resolution0.01 %
HC NDIR measurement for emissions (option) 
Range0 to 40000 ppm
Accuracy ± 400 ppm or 5% reading
Resolution10 ppm
3 Gas NDIR bench
CO – Range10.000 ppm/10 %
Accuracy±0,03 % or ±3 % reading
Resolution10 ppm/0.01 %
CO2 – Range0-3%/30%
Accuracy±0,5 % or ±3 % reading
Resolution0.01 %
HC – Range Calibrated as CH4 or 10.000 ppm/3 %
Accuracy±0,03 % or ±3 % reading
Resolution10 ppm/0.01 %
HC – Range Calibrated as C3H82000 ppm/5000 ppm
Accuracy±30 ppm or ±3 % reading
Resolution1 ppm
CO2 % ( calculated from O2) when NDIR sensor not installed
Range0 to CO2% Max
Accuracy± 0.3 % Vol
Resolution0.1 %
Flue gas temperature measurement 
Range– 50 to 1200 °C
Accuracy± 2 °C
Resolution0.1 °C
Air Temperature measurement 
Range– 50 to 100 °C
Accuracy± 1 °C
Resolution0.1 °C
Flue Gas Draught/pressure measurement 
Range± 100 mbar (base unit) / ± 200 mbar (RCU unit)
Accuracy± 0.02 mbar
Resolution± 0.001 mbar
CO/CO2 Ratio Calculation 
Range0 to 99999
Resolution0.0001
Efficiency (Net, gross, Condensing) calculations 
Range0 to 120% ETA
Resolution0.1 %
Air Ratio Calculation 
Range1 to 9.99
Resolution0.01
Excess Air Calculation 
Range0 to 99.9 %
Resolution0.1%
Heat losses Calculation 
Range0 to 9.99 %
Resolution0.1%
Flow Gas measurement (option) 
Range3 to 100 m/sec
Accuracy± 1 m/sec or ± 3% of reading
Resolution0.1 m/sec
Conversions calculations
emissions calculationsppm/o2% reference, mg/m3, mg/m3 with O2 reference, NOx mg/m3 in term of NO2
 Fuels
Pres-set fuelsNat Gas, Heavy Oil Light Oil, LPG, Propane, Butane, Kerosene,Coal, Diesel,Petrol,Coke, Anthracite, Wood@0%, Wood@10%, Wood@20%, Wood@30%, Wood@40%, Wood@50%, Pellets
Digital & Software
Communicationsmini USB, optional Bluetooth
Data logging16000 Data log on internal memory  & 2GB on SD card- Data exported as CSV file, download via SD card
Mobile APP ( Free)MRU4U working on IOS & Android
Software (Optional)MRU4WIN emissions software
General Base unit
Displaynone
Weight6KG
Dimension470 x 314 x 235 including RCU
IP protectionIP 20
Power/mainLi-Ion  internal rechargeable batteries, 20 hours operation ( reduced to 10 hours with cooler on)- Charger 100-240 VAC, 50-60 Hz
Operating/Storage temperature5 to 45 °C/ -20 to 50 °C
RCU ( Remote Control Unit)
Display3.5 ” TFT colour display, 6 lines full graphic
Weight700 g
Dimension
IP protectionIP 20
Power/mainLi-Ion  internal rechargeable batteries, 30 hours operation- Charge inductive via base unit and/or USB
Operating/Storage temperature5 to 45 °C/ -20 to 50 °C
Other
Warranty2 years on instrument, 2 years on O2 sensor, 1 year on all other sensors
ApprovalsIndependently tested to BS EN 50379-2- MCERTS performance standard for Portable Emissions Monitoring system (o2, CO, NO, NO2, SO2 and CO2 IR)

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RASI 800 – Portable Emissions and Exhaust Gas Analyser, MCERTS certified