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Products >> Portable flue gas analyzer Sensonic 4500
Flue gas analyzer

Flue gas analyzer Sensonic 4500 with integrated sample conditioner

Sensonic 4500

The flue gas analyzer Sensonic 4500 is designed especially for service technicians who are permanently employed in measuring emissions and carrying out adjustments as well as making long-term measurements and inspections on various burner and heating equipment. For this purpose the flue gas analyzer is fitted with a high-powered dryer and heated hose. The analyzer can be equipped with 9 sensors (7 electrochemical and 2 NDIR sensors).

All parts of the flue gas analyzer are designed for a long and trouble-free operation. 6 additional analog inputs for voltage/current signals and temperature together with 2 optional analog outputs give the instrument an unheard of flexibility. The analyser can also be fitted with two IR sensors for direct measurement of CO2 and CH4. Constructed to be compliant with EN50379.

Standard and optional configuration

Measurement of gas concentrations
  • Gas concentrations measured with NDIR sensors: CO2, CH4
  • Gas concentrations measured with electrochemical sensors: O2
  • Toxic gas concentrations measured with electrochemical sensors: CO, NO, NO2, SO2, H2S, H2., Please ask for quote for other gases.

Measurement of other parameters
  • Measurement of gas and ambient temperatures
  • Pressure, draft and differential pressure measurements with 1 Pa resolution
  • Soot test according to Bacharach with a pump flow of 1.63 l/min
  • 6 analog inputs (2 current/voltage, 2 thermocouple, 2 thermistor)

Calculation
  • CO2 concentration
  • Calculation of absolute and relative mass concentrations & relative emissions
  • Calculation of all relevant combustion parameters

Processing and presentation of measuring data
  • All results shown on display
  • Averaging of all measured values. Averaging time: 10 sec - 60 min
  • Graphical presentation of all measured values as diagram
  • Memory capacity for 1024 sets of data, organised into 10 data banks
  • Up to 9 separate items in a data set
  • User definition of the 9 items
  • Memory capacity for 30 reports
  • Data logger function for the analog inputs
  • All measured values, stored values or displays can be printed on the internal printer.
  • Powerful PC program for flue gas analyzer settings and data communication

Software capabilities
  • International compatibility (language, date format etc.)
  • Password protection for settings
  • Automatic zeroing when the analyser is switched on
  • Calibration of O2/CO2 during use
  • All parameters programmable
  • List of 22 common fuels
  • 10 further freely programmable fuels
  • Permanent automatic check of the instrument with acoustic warning and full information in the "control list"
  • Compensation of cross sensitivity and temperature drift of gas sensors

Hardware capabilities
  • Peltier Gas dryer
  • Electronic regulation of the pump flow rate
  • Integrated clock/calendar
  • Internal 57 mm dot-matrix printer
  • Power from rechargeable battery or mains
  • Big (75 x 64 mm) LCD display with backlighting (Graphics or 11 x 21 characters)
  • Gas probe with thermocouple
  • RS-232C interface and multifunctional PC program

Optional accessories
  • External ambient temperature sensor
  • Flow velocity

Technical data:
Size of case W x H x D: 485 x 205 x 295 mm
Weight w/o probe 10 kg
Display size Graphical - LCD, with backlighting and variable contrast, 128 x 112 pixels, 75 x 64 mm
Printer high-speed dot matrix printer with graphics capability for 57 mm normal paper
Data memory Memory for 30 reports and 10 banks containg a total of 1024 sets of data
CO - measurement channel Separate from the other gas channels. If the freely programmable maximum is exceeded then the sensor is purged with air, without interrupting the other measurements
Interface RS232C
Power supply 110/230 VAC 50 ÷ 60 Hz
Charging time Lead-acid battery 12 V / 2.2 Ah, charging time 10 h, working time approx. 6 h (w/o dryer)
Gas pump Membrane pump, electronically regulated at 90l/h
Probe length 300 mm (other options available)
Gas dryer Peltier dryer
Length of heated line 3 m
Gas filter heated in line filter 20 µm
Operating temperature 10 °C ÷ 50°C
Storage temperature -20 °C ÷ +55 °C
Humidity 5 - 90 %, non-condensing

Measurements
Parameter Method range Display resolution Accuracy Detection limit Response time (t90)
Gases measured in standard configuration
O2 - oxygen, volumetric concentration electrochemical gas sensor 0…25 % 0.01% ±0.2 % or
2 % rel.		 0.2 % 45 s
CO2 - carbon dioxide, volumetric concentration calculated from volumetric concentration of O2 0..25 % 0.01% ±0.2 % or
2 % rel.		 0.2 % 45 s
CO - carbon monoxide, volumetric concentration electrochemical gas sensor 0….20,000 ppm 1ppm ±5 ppm or 5 % rel. 5 ppm 45 s
COmg - carbon monoxide, mass concentration calculated from volumetric concentration of CO 0... 1 mg/Nm3 ±10 mg/Nm3 or 5 % rel. 10 mg/Nm3 45 s
COrel - carbon monoxide, mass concentration relative to O2 calculated from volumetric concentration of CO and O2 0... 1 mg/Nm3 ±10 mg/Nm3 or 5 % rel. 10 mg/Nm3 45 s
Gases measured with optional IR sensors
CO2 - carbon dioxides volumetric concentration
IR sensor
 0...25 % 0...100 % 0.01 % 0.1 % 0.5 % from range or +/-3 % rel. 0.2 % 45 s
CH4 - Methane, volumetric concentration IR sensor 0...5 % 0...100 % 0.01 % 0.1 % 0.5 % from Range or +/-3 % rel. 0.2 % 45 s
Gases measured with optional electrochemical sensors
NO / NOx - volumetric concentration of nitrogen oxides.
electrochemical gas sensor
 0...5000 ppm 1 ppm ± 5 ppm or 5 % rel. 1 ppm 45 s
NOmg/NOxmg - mass concentration of nitrogen oxides calculated from volumetric concentration of NO 0... 1 mg/Nm3 ±10 mg/Nm3 or 5 % rel. 1 mg/Nm3 45 s
NOrel / NOxrel - mass concentration of nitrogen oxides relative to O2 calculated from volumetric concentration of NO and O2 0... 1 mg/Nm3 ±10 mg/Nm3 or 5 % rel. 1 mg/Nm3 45 s
NO2 - volumetric concentration of nitrogen dioxide. electrochemical gas sensor 0...1000 ppm 1 ppm ±5 ppm or 5 % rel. 1 ppm 45 s
NO2mg - mass concentration of nitrogen dioxide calculated from volumetric concentration of NO2 0... 1mg/Nm3 ±15 mg/Nm3 or 5 % rel. 2 mg/Nm3 45 s
NO2rel - mass concentration of nitrogen dioxide relative to O2 calculated from volumetric concentration of NO2 and O2 0... 1mg/Nm3 ±15 mg/Nm3 or 5 % rel. 2 mg/Nm3 45 s
SO2 - volumetric concentration of sulfur dioxide. electrochemical gas sensor 0...5000 ppm 1 ppm ±5 ppm or 5 % rel. 1ppm 45 s
SO2mg - mass concentration of sulfur dioxide. calculated from volumetric concentration of SO2 0... 1 mg/Nm3 ±5 mg/Nm3 or 5 % rel. 3 mg/Nm3 45 s
SO2rel - mass concentration of sulfur dioxide. relative to O2 calculated from volumetric concentration of SO2 and O2 0... 1 mg/Nm3 ±15 mg/Nm3 or 5 % rel. 3 mg/Nm3 45 s
Other measured values
Tgas - flue gas temperature
Thermocouple
 -10...1000°C 1°C ± 2 °C or 1. 5 % rel. 1 °C 30 s
Tamb - ambient temperature Thermistor -10...100°C 1°C ± 1 °C 1 °C 30 s
U1,U2 - 2 external inputs
ADC
-20...+20 V
0.01 V
±0.02 V
0.01 V
10 s
I1,I2 - 2 external inputs
ADC
-20...+20 mA
0.01 mA
±0.02 mA
0.01 mA
10 s
T1,T3 - 2 external inputs
Thermocouple
0...1600°C
1°C
±2 °C or 1.5 % rel.
1 °C
10 s
T2,T4 - 2 external inputs
Thermistor
-20...100°C
1°C
±2 °C or 1.5 % rel.
1 °C
10 s
Pressure/diff. pressure DMS bridge -25 hPa ... +25 hPa 1 Pa ±2 Pa or 5 % rel. 1 Pa 10 s
flow velocity (Option) Pitot tube 1...50 m/s 0.1 m/s 0.3 m/s or 5 % rel. 0.1 m/s 10 s
Soot/smoke test (option) Bacharach method 0...9 0.5 0.5 0.5
TI (CO/CO2-Toxic Index) calculated 0...0.01 0.0001 5 % rel. 0 10 s
Lambda - excess air number calculated 1...10 0.01 2 % rel. 0 10 s
qA - combustion losses calculated 0...100% 0.1% 2 % rel. 0 % 10 s
Eta - efficiency
calculated
0..120 %
0.1 %
2 % rel.
0 %
10 s
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