49i-PS Ozone Primary Standard
Produce ozone concentrations of up to 1000 ppb with the Thermo Scientific™ Model 49i-PS Ozone Primary Standard, a UV photometric primary standard suitable for calibration of ozone analyzers and transfer standards. The Model 49i-PS uses a dual-cell photometer, the concept adopted by NIST as the principle technology for the national ozone standard.
Key Features:
- Achievable response time of 20 seconds
- Ozonator flow rates of up to 6L/min.
- Fast internal ozonator and response time
- Temperature and pressure correction
iSeries Advantage:
- 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
- Calibration of Ozone Analyzers: The instrument is used to generate known, stable ozone concentrations (up to 1000 ppb or 5 ppm depending on configuration) to calibrate other ambient air quality analyzers, ensuring their accuracy and compliance with regulatory standards.
- Calibration of Transfer Standards: It serves to calibrate secondary or “transfer” standards, which are then used for field calibrations of monitors, ensuring traceability to national standards like those from the National Institute of Standards and Technology (NIST).
- Quality Assurance/Quality Control (QA/QC) Programs: It is an essential tool for maintaining rigorous quality control within air monitoring networks, verifying the performance of monitoring equipment.
- Environmental Research: The instrument can be used in research settings where a reliable and precise ozone source is needed for experiments related to atmospheric chemistry, material testing, or biological exposure studies
| Preset ranges | 0-0.05, 0.1, 0.2, 0.5, 1, 2, 5, and 10 ppm, 0-0.2, 0.5, 1, 2, 5, 10, 20, and 25 mg/m3 |
| Custom ranges | 0-0.05 to 5 ppm 0-0.1 to 10μg/m3 |
| Zero noise | 0.25 ppb RMS (60-second averaging time) |
| Lower detectable limit | 0.5 ppb |
| Zero drift | <1.0 ppb/24 hour |
| Span drift | less than 1% per month (including drift of transducers) |
| Response time | 20 seconds (10 second lag time) |
| Precision | 1.0 ppb |
| Linearity | +/-1% full scale |
| Sample flow rate | 1-3 liters/min. |
| Operating temperature | 32°F to 113°F (0°C – 45°C) |
| Power requirements | 100 VAC, 115 VAC, 220-240 VAC +/-10% @ 150W |
| Size and weight | 16.75″ (W) ´ 8.62″ (H) ´ 23″ (D), 48 lbs. 425 mm (W) ´ 219 mm (H) ´ 584 mm (D), 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 Output (optional) |
| Inputs | 16 digital inputs (standard), 8 0-10Vdc analog inputs (optional) |
| Ozonator Output | .025 – 1.000 ppm @ 3-4 LPM |
| Ozonator Response | 1 minute to 98% or 5 ppb of final value, whichever is greater |
| Stability | +/- 4 ppb or +/- 1% or reading, whichever is greater |
