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Thermo Fisher Scientific - Model 42i -NO-NO2-NOX Analyzer
The Thermo Scientific Model 42i utlizes chemiluminescent technology to measure levels of nitrogen oxides (NO-NO2-NOx) in the emissions from a source. The flagship product in the Thermo Scientific iSeries line, the Model 42i is the most recognized NOx analyzer in the industry. Using chemiluminescence technology, the Model 42i measures the amount of nitrogen oxides in the air from sub-ppb levels up to 100ppm. The Model 42i is a single chamber, single photomultiplier tube design that cycles between the NO and NOx modes. The Model 42i has independent outputs for NO, NO2, and NOx and each can be calibrated separately.
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- Preset Ranges : 0-0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50 and 100 ppm; 0-0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100 and 150 mg/m3
- Custom Ranges : 0-0.05 to 100 ppm and 0-0.1 to 150 mg/m3
- Zero Noise : 0.20 ppb RMS (60 second averaging time)
- Lower Detectable Limit : 0.40 ppb (60 second averaging time)
- Zero Drift (24 hour) : < 0.40 ppb
- Span Drift (24 hour) : +/-1% full scale
- Response Time : 40 seconds (10 second average time); 80 seconds (60 second average time); 300 seconds (300 second average time)
- Precision : +/-0.4 ppb (500 ppb range)
- Linearity : +/-1% full scale
- Sample Flow Rate : 0.6 liters/min.
- Operating Temperature : 15°C - 35°C
- Power Requirements : 100 vac, 115 vac, 220-240 vac +/-10% @ 300W
- Size and Weight : 16.75”(W) x 8.62”(H) x 23”(D), 55 lbs. (25 kg)
- Outputs : Selectable Voltage, RS232/RS485, TCP/IP, 10 Status Relays, and Power Fail Indication (standard). 0-20 or 4-20 mA Isolated Current Outout (optional)
- Inputs : 16 Digital Inputs (standard), 8 0-10vdc Analog Inputs (optional)
- Standard dual range and auto ranges
- Five-second response time
- Temperature and pressure correction
- User settable alarm levels for concentration
- Ethernet connectivity for efficient remote access
- Enhanced user interface with one button programming and large display screen
- Flash memory for increased data storage and user downloadable software
- Enhanced electronics design optimizes product commonality
- Improved layout for easier accessibility to components