Do Meters HI 9146?

The HI9146 is a rugged, portable dissolved oxygen (DO) meter designed to provide laboratory precision and accuracy under harsh environmental and industrial conditions. Developed for measuring dissolved oxygen in water, wastewater, and environmental testing, this meter can also compensate for altitude and salinity.

How do you use a dissolved oxygen sensor?

Insert the probe into the sample water. Move the probe in the water to release any air bubbles and to provide a fresh sample to the sensor cap. The continuously stir the sensor. The sensor consumes dissolved oxygen so it is important to stir (but not agitate) the sample.

What is dissolved oxygen in water?

Dissolved oxygen (DO) is the amount of oxygen that is present in water. Water bodies receive oxygen from the atmosphere and from aquatic plants. Running water, such as that of a swift moving stream, dissolves more oxygen than the still water of a pond or lake.

Do beer do meters?

A portable DO meter for breweries can be used for spot check measurements at tanks and as a temporary in-line measurement unit in filtration, blending, and filling lines. InTap is METTLER TOLEDO’s new portable DO meter for brewing.

Do electric meters need calibration?

Do meters require periodic re-calibration and if so, how often? All meters are calibrated at the factory to ensure they comply with published accuracy specifications. They do not require periodic re-calibration nor should they need to be re-calibrated over the operational life of the meter.

What is a good level of dissolved oxygen in water?

6.5-8 mg/L
Healthy water should generally have dissolved oxygen concentrations above 6.5-8 mg/L and between about 80-120 %.

Why is dissolved oxygen important?

Dissolved oxygen (DO) is one of the most important indicators of water quality. It is essential for the survival of fish and other aquatic organisms. Oxygen dissolves in surface water due to the aerating action of winds. Oxygen is also introduced into the water as a byproduct of aquatic plant photosynthesis.

How do you test for oxygen in water?

Testing dissolved oxygen (DO) in water is either measured via chemical analysis such as a titrimetric method, electroanalytical (using galvanic & polarographic probes), optical dissolved oxygen, and colorimetric methods. However, modern techniques mainly use electrochemical or optical sensor methods.