Thermo Miran Sapphire XL Manual 2005 - IE Monitoring Instruments
Thermo Miran Sapphire XL Manual 2005 - IE Monitoring Instruments
Thermo Miran Sapphire XL Manual 2005 - IE Monitoring Instruments
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Chapter 1 Introduction<br />
Each SapphIRe analyzer contains a single-beam infrared spectrophotometer. A<br />
microcontroller automatically controls the analysis, processes the measurement signal,<br />
and calculates the absorbance values. Analysis results can be displayed in parts per<br />
billion (ppb), parts per million (ppm), percent (%), mg/m 3 , or absorbance units (AU).<br />
Warning: Intrinsically safe models require special actions with respect to the following<br />
section. Refer to Appendix B for descriptions of these actions.<br />
A rechargeable internal battery pack provides power for up to four hours of continuous<br />
operation. The system includes a separate charger/power supply (Figures 3-5 and 3-6)<br />
that allows the analyzer to be powered from an ac supply. It is also used to recharge the<br />
battery pack either in an offline mode or while the analyzer is running in normal<br />
operating mode.<br />
SapphIRe-DL Analyzer<br />
The SapphIRe-DL Analyzer has the ability to measure any compound having an<br />
absorbance in the wavelength region from 7.7 microns to 14.1 microns or any of the<br />
available fixed band pass filters, such as carbon monoxide, carbon dioxide,<br />
formaldehyde, nitrous oxide, hydrocarbons, water, and reference. The SapphIRe-DL<br />
Analyzer provides the ability to perform multicomponent analysis. It can take<br />
absorbance measurements of up to 10 wavelengths, and display and log compensated<br />
concentrations for up to five individual gases. In addition, its user library can be<br />
programmed to store up to 10 single gas applications and up to 10 multi-gas applications.<br />
SapphIRe-SL Analyzer<br />
The SapphIRe-SL Analyzer performs all the functions of the SapphIRe-DL Analyzer. In<br />
addition, it has 50 single gas factory calibrations in its standard library, many employing<br />
an alternate wavelength (see Appendix H). These calibrations allow the selection of a<br />
compound from its standard library of gases. The analyzer then "pulls up" the<br />
application information, configures itself to measure the compound of choice, and<br />
delivers concentration readings for this compound without performing interference<br />
compensation. This avoids interference from other gases by selecting a different<br />
measurement wavelength for a given gas instead of going through full multicomponent<br />
calibration. This feature is beneficial when two different gases have spectra that both<br />
exhibit peaks at some wavelengths but not at others. By selecting a measurement<br />
wavelength for the target gas that is not common to any other gas, the interference<br />
problem can be avoided.<br />
SapphIRe-<strong>XL</strong> Analyzer<br />
The SapphIRe-<strong>XL</strong> Analyzer performs all the functions of the SapphIRe-SL Analyzer,<br />
except it has more than 120 single gas factory calibrations in its standard library (see<br />
Appendix H).<br />
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