The 6000 Series Microprocessor Controlled Ultraviolet Photometer is designed to provide continuous on-line analytical data of critical process conditions and eliminate time consuming laboratory analysis. This analyzer can be configured to measure at any wavelength within the ultraviolet or visible portions of the electromagnetic energy spectrum. Since numerous gases and liquids have a useful absorbance peak in the ultraviolet region, a wide variety of applications are possible.
Principle of Operation
The analyzer’s optical path consists of a UV source, sample cell and detector. A filter wheel located in front of the detector continuously rotates a reference and measuring filter in and out of the optical path. The material of interest continuously flows through the sample cell where the optical energy is absorbed at various wavelengths in accordance with its composition. The analyzer utilizes the reference wavelength to compensate for extraneous phenomena (turbidity, dirt on optics, source drift, etc.) thereby producing a high degree of stability over long periods.
Advantages
Dependable microprocessor-controlled analysis
Auto-calibration and auto-ranging
Continuous real time analysis
Eliminates time-consuming lab analysis
Noise
< ± 1% of full scale
Diurnal
< 1% per 20°F
Drift
< 1% per day
Accuracy
± 2% of full scale
Sensitivity
0.02 to 3 absorbance units
Reproducibility
± 1% of scale or better
Flow Rates
50 to 1500 cc/min
Response Time
90 seconds
Temperature
32° to 122°F (0° to 50°C) non-condensing
Sample Cell
Stainless steel with quartz window standard
Other materials available
Cell Length
0.01 to 40 inches (application dependent)
Light Source
Tungsten lamp, mercury, deuterium arch (application dependent)
Filter Wavelength
210 to 1,000 nanometers
Sample Pressure
Quartz window – 3 PSIG
Sapphire – 40 PSIG
Readout
2-line alphanumeric vacuum fluorescent display (VDC)
Power
115 / 230 VAC, 50 / 60 Hz, approximately 200 watts
Enclosure
General purpose – sheet steel
