Thermo 43iQ ambient SO2 analyser | EMS
Thermo 43iQ ambient SO2 analyser

Ambient SO2 analyser

The Thermo Scientific™ 43iQ Sulphur Dioxide (SO2) Analyzer utilizes pulsed fluorescence technology to measure the amount of sulphur dioxide in the air.
Gases Measured Sulphur Dioxide
Description43iQ Sulphur Dioxide Analyzer
Extended Range0-100 ppm, 0-250 mg/m^3
Flow Rate0.5 lpm (standard)
Height (Metric) 221.48mm
Depth (Metric)609mm
Linearity ±1% full scale
Precision±1% full scale
Approvals and CertificationsCE, TUV-SUD Safety, US EPA: EQSA-0486-060
Interferences(EPA Levels) Less than lower detectable limit except for the following: NO < 3 ppb, M-Xylene < 1ppb, H2O < 3% of reading
Response Time60 seconds (10 second averaging time) 110 seconds (60 second averaging time) 320 seconds (300 second averaging time)
Span Drift±0.5% full scale (24 hour)
Temperature (Metric) Operating0°-45°C
Weight (Metric)16.8kg
Width (Metric)425mm
Zero Drift<0.5 ppb (24 hour)
Zero Noise1.0 ppb RMS (10 second averaging time), 0.5 ppb RMS (60 second averaging time),0.25 ppb RMS (300 second averaging time)
Measurement Range0-10 ppm, 0-25 mg/m^3
Analog Inputs 4 isolated voltage inputs 0–10 V
Analog Output 6 isolated analog voltages outputs, with 4 selectable ranges 6 isolated analog current outputs, with 2 selectable ranges
Communication PortsSerial ports: 1 RS-232/485 port 1 RS-485 external accessory port Other ports: 3 Full speed USB ports (one in front, two in rear) 1 Gigabit ethernet port
Communication ProtocolsMODBUS, streaming
Detection Limit2 ppb (10 second averaging time) 1 ppb (60 second averaging time) 0.25 ppb (300 second averaging time)
Digital Inputs 16 digital inputs (TTL)
Digital Outputs8 solenoid driver outputs 10 digital reed relay contact outputs
Power Requirements100-240 VAC 50/60Hz, 275 Watts

20 The Boulevard

Grange Rath


Co Meath, A92 RY72



Newsletter Signup


Subscribe for all of our latest EMS news and updates.