Modular concept for reliable process monitoring
Polytec PAS spectrometers provide the ideal solution to your NIR process analytics problems. Diode array detector technology combined with a transmission grating design means the devices can be used for fast and reliable data acquisition. Flexible combinations with fiber-coupled components allow for integration in various measurement scenarios to suit the user’s requirements. Thanks to standardized components, no compromises need to be made with regard to precision and user-friendliness.
PAS spectrometers are available in a 19” plug-in housing with a 110 – 240 VAC power supply for installation in industrial cabinets. Small ½ 19” controllers with an actively stabilized (10 – 30 VDC) power supply are also available. They are particularly suitable for mobile applications on harvesters, for example.
Highlights
Innovative transmission grating design
High measurement rates due to very short measuring times
Superior sensitivity and long-term stability
Uniformly high optical resolution across the entire spectral range
Extremely low scattered light levels
SMA 905 fiber-optic connector
Ethernet interface
- Various scan heads, optical fibers and software modules
NIR spectrometers for industrial process control
Different models
PAS 1720/1721 and 1751
The compact diode array spectrometers (256 or 512 pixels) are equipped with TE cooling and cover a wavelength range of 850 nm to 1650 nm. They are either available in the 19 inch housing (PAS 1720) or in the ½ 19 inch housing.
PAS 2120/2121
These diode array spectrometers (256 pixels) also have TE cooling and can be used in a wavelength range of 1100 nm to 2100 nm. The PSS 2120 is integrated in the 19 inch housing, while the PAS 2121 is integrated in the ½ 19 inch housing.
Technical data
| Model | Wavelength range | Housing in inch | Detector | Resolution |
PAS 1720 | 850 to 1650 nm | 19 | 256 Pixel | from < 6.4 nm |
PAS 1721 | 850 to 1650 nm | ½ 19 | 256 Pixel | from < 6.4 nm |
PAS 1751 | 850 to 1650 nm | ½ 19 | 512 Pixel | from < 4.0 nm |
PAS 2120 | 1100 to 2100 nm | 19 | 256 Pixel | from < 7.9 nm |
PAS 2121 | 1100 to 2100 nm | ½ 19 | 256 Pixel | from < 7.9 nm |