Thermo 49iQ ambient O3 analyser
Ambient O3 analyser

The Thermo Scientific™ 49iQ Ozone(O3) Analyzer utilizes UV Photometric technology to measure the amount of ozone in the air from ppb levels up to 200ppm.
Gases Measured | Ozone |
Custom Ranges | 0-0.05 to 200 ppm; 0-0.1 to 400 mg/m3 |
Description | 49iQ Ozone Analyzer |
Flow Rate | 1-3 LPM |
Height (Metric) | 221.5mm |
Depth (Metric) | 609mm |
Linearity | ±1% full scale |
CE, TUV-SUD Safety, EQOA-0880-047 | |
Response Time | 20 seconds (10 second lag time) |
Span Drift | <1% full scale (1 month) |
Temperature (Metric) Operating | 0° to 45°C (Operating) |
Weight (Metric) | 14.4kg (standard), 16.1 kg (with ozonator) |
Width (Metric) | 425.45mm |
Zero Drift | <1.0 ppb (24 hour) <2.0 ppb (7 day) |
Zero Noise | 0.25ppb RMS (60 seconds average time) |
Measurement Range | 0–200 ppm 0–400 mg/m3 |
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 Ports | Serial 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 Protocols | MODBUS, streaming |
Detection Limit | 0.50 ppb (60 second averaging time) |
Digital Inputs | 16 Digital inputs (TTL) |
Digital Outputs | 8 Solenoid driver outputs 10 Digital reed relay contact outputs |
Power Requirements | 100-240 VAC 50/60 Hz 275 Watts |
Ozonator Output | .025 - 1.000 ppm @ 3-4 LPM |
Ozonator Response | 1 minute to 98% or 5 ppb of final value, whichever is greater |
Ozonator Stability | Ozonator Stability |