CerexMS
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| Brand | CerexMS |
|---|---|
| Origin | USA |
| Model Variants | Mini Hound-FR (8.5 m optical path), Hound-FR (17 m optical path), Micro Hound-FR (2 m optical path) |
| Portability | Portable |
| Response Time | < 1 s |
| Detection Principle | Ultraviolet Differential Optical Absorption Spectroscopy (UV-DOAS) |
| Detection Capability | Simultaneous real-time quantification of up to 15 gas species |
| Detection Limit | Sub-ppb level for key analytes (e.g., SO₂, NO₂, O₃, benzene, toluene, formaldehyde) |
| Integrated Components | Rechargeable battery pack, high-resolution UV spectrometer (200–400 nm), 15 CFM sampling pump, sub-micron particulate filter |
| Regulatory Alignment | Designed to support EPA Method TO-15 / TO-14A compliance workflows, compatible with ISO 12039 and ASTM D6348 validation frameworks |
| Brand | CerexMS |
|---|---|
| Origin | USA |
| Model | Shepherd |
| Instrument Principle | Infrared Absorption Spectroscopy (FTIR) |
| Type | Portable |
| Response Time | <1 s |
| Repeatability | High for all IR-active species |
| Detection Range | Sub-ppb to % v/v |
| Gas Library | 385+ compounds (including >100 HAPs) |
| Optical Path Length | 20 m (fixed, multipass) |
| Detector | Liquid-nitrogen-free cryogenically cooled MCT |
| Data Output | Raw interferograms, calibrated spectra, concentration time-series, CSV export |
| Compliance | Designed for EPA Method 320 / ASTM D6348 / ISO 12039 alignment |
| Software | CMS Continuous Monitoring Software (Windows Embedded, touchscreen UI) |
| Connectivity | Wi-Fi, Ethernet, USB |
| Alarm Options | Visual, audible, email, remote notification |
| Calibration | Built-in reference cell + user-definable multi-point calibration |
| Maintenance | Two consumables only — IR source and thermoelectric cooler compressor |