The Thermo Scientific Model 43i SO2 Analyzer is the first gas analyzer to utilize pulsed fluorescence technology to measure SO2 up to 100ppm in ambient air. The Scientific 43i SO2 Analyzer is the first gas analyzer to utilize pulsed fluorescence technology to measure SO2 up to 100 ppm in ambient air. reflective bandpass filters with less photochemical degradation and increased photoselectivity improve the instrument's detection characteristics and long-term stability.
The Model 43i SO2 Analyzer is also equipped with an oxygen sensor module.

The Model 43i with Oxygen Sensor uses paramagnetic sensor technology to extend the SO2 measurement capability to read and report up to 100% oxygen concentration in the sample. In addition, a programming feature allows the user to calibrate the SO2 reading by the amount of oxygen in the sample gas.

Featured Advantages

High sensitivity and fast response time

Linear across the entire range

Less affected by flow rate and ambient temperature,

Ethernet connectivity for efficient remote access

Large-format Ethernet connectivity

Large-format Ethernet connectivity

Large display and enhanced user interface with editable shortcuts

Flash memory for more data storage and user downloadable software<

Enhanced electronic design optimizes product versatility

Enhanced electronic design optimizes product versatility

Improved Layout for Easier Maintenance of Components

Technical parameters

Ranges:0-0.05,0.1,0.2,0.5,1,2,5,10 ppm,0-0.2,0.5,1,2,5,10,20,25 mg/m3

Extended Range:0-0.5,1,2,5,10,20,50,100 ppm,0-2,5,10,20,50,100,200,250 mg/m3

Extended Range:0-0.5,1,2,5,10,20,50,100,200,250 mg/m3

Zero Noise:0.5 ppb RMS (60 sec. averaging time)

Lowest Detection Limit:<0.5 ppb RMS (60 sec. averaging time)

Lowest Detection Limit:<0.5 ppb RMS (60 sec. averaging time)

Zero drift (24 hours):<1.0ppb

Full Scale Drift (24hrs):±0.5% Full Scale