Product Components; Theory Of Operation; Installation - Hach NX7500 Manual Del Usuario

Product components

Make sure that all components have been received. Refer to
damaged, contact the manufacturer or a sales representative immediately.
Figure 2 Product components
1 Probe

Theory of operation

The probe has a light source, a lens system, optical path through the medium and a spectrometer.
The probe uses a xenon flash lamp as a broadband light source. The light goes through the optical
path in the medium, and the medium absorbs some light. The spectrometer records the remaining,
spectrally resolved light and determines the intensity at multiple wavelengths in a wavelength range.
A measurement in ultrapure water calibrates the probe to zero (by the manufacturer).
The analysis software calculates the absorption value with concentrations or concentration
equivalents.

Installation

Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Installation guidelines
Note: Make sure that the enclosure of the probe is titanium before use in sea water.
• Do not use stainless steel probes in sea water or other corrosion-causing media (e.g., acids,
alkalis, chlorine-based compounds). Clean the probe immediately.
• Do not use titanium probes in bromine, hydrofluoric acid and hot acids. Clean the probe
immediately if the probe touches hydrofluoric acid or hot acids.
• The seals of the probe are made of NBR (nitrile butadiene rubber). Make sure that the measuring
medium does not cause damage to the probe components.
8 English
Figure
2 Compressed air connector
C A U T I O N
2. If any items are missing or