Analysis Quiz- Dissolved Oxygen

Which Parameters influence the dissolved oxygen value? Multiple answer

• Pressure

• Salinity

• temperature

• pH

What is the atmospheric pressure at sea level at 20 deg c

• 500 mbar

• 1013 mbar

• 1513 mbar

• 600 mbar

What is the partial pressure of Oxygen in Air

• 780 mbar

• 212 mbar

• 500 mbar

• 1013 mbar

What are the measuring principles we offer for dissolved oxygen? Multiple Answer

• Amperometric

• Calorimetric

• Optical

• hydrostatic

Which are the optical sensor for DO measurement? Multiple answer

• COS22/22E

• COS51E

• COS61/61D

• COS81E

Which are the Amperometric sensors? Multiple Answer

• COS51E

• COS81E

• COS61/61D

• COS22/22E

Which sensor require sensor polarisation? Multiple Answer

• COS22/22E

• COS81E

• COS61/61D

• COS51E

the C-shaped and U-shaped optical cap is for...

• COS22/22E

• COS51E

• COS81E

• COS61/61D

Why customer want to measure oxygen? Multiple Answer

• Quality Control, monitoring

• Regulation of oxygen concentration

• Ensure absence of oxygen sensor

• Ensure absence of oxygen

Why we recommend to install optical sensors in an inclined position?

• ...Just for fun

• ...to avoid incorrect measuring signal due to air bubbles

• ...optical sensors doesn't fit in straight down assemblies

• ...to get 100% saturation index