The ClearView db delivered to the end-user is essentially customized for their specific purpose. The end-user may later modify the software portion of the calibration to adapt the analyzer for other requirements. For example, an offset or slope correction can be added to fine-tune the calibration based on data after installation at the customer site.

How Guided Wave Selects Filters?

Guided Wave has developed filter kits for many applications. For new applications, samples must be collected and scanned with a spectrometer (400-2100nm). Wavelength ranges that correlate well with the chemical changes are identified and compared against our stock of available filers for the closest match.

Each filter allows a narrow range of wavelength to be transmitted to the photometer detector. This is typically referred to as the bandwidth of the filter. Above are 4 proven photometer applications by wavelength represented by the red, gray, blue and yellow dots. By measuring these wavelengths we can monitor the specific application at a reduced cost in comparison to a full spectrum analyzer.  

If Guided Wave does not have a corresponding filter, a custom filter can be ordered from our vendor and added to our inventory to meet application demands.

The Anatomy of the ClearView db Analyzer

The photometer both transmits the source light and quantifies the light that was not absorbed by the sample. Optical grade fiber cablesare used to carry the light from the photometer to the sample and back. Using high-performance fiber cables permits the sample interface to be located up to 100 meters from the photometer.

The ClearView db can be divided into four major sections 

1) Electronics (Detector PCA):  the desired (analog inputs and outputs, Modbus interface, and Human Interface Display (touch screen)

2) Lamp Housing:  area of the light source.

3) Optical Multiplexor: (MUX): which programmatically switches between the reference and sample fiber optic cables. The reference fiber is our Dual Beam (db). It allows for automated corrections due to instrument noise and improves performance.

4) Detector Housing:  area where the filters and detectors are installed by Guided Wave at the factory (the graphic below shows 2 of the 6 possible filters).