Dissolved Oxygen
In aquatic environments, oxygen saturation is a relative measure of the amount of oxygen (O2) dissolved in the water. Dissolved oxygen (DO) is measured in standard solution units such as millimoles O2 per liter (mmol/L), milligrams O2 per liter (mg/L), milliliter O2 per liter (ml/L), or parts per thousand (ppt). However, as in the medical sense, oxygen saturation is calculated as the percent of DO relative to a theoretical maximum concentration given the temperature, pressure, and salinity of the water. Well-aerated water (in free interchange with the air) will usually be 100% saturated. In general, the colder the water the more O2 it can dissolve, the more saline the water the less O2 it can dissolve, and the lower the atmospheric pressure (e.g., the higher the elevation), the less oxygen it can dissolve. These generalities come from the gas laws of physics.
The following products are available to test for Dissolved Oxygen (DO):
Micro 900 Dissolved Oxygen Meter
The Micro 900 Dissolved Oxygen Meter is a state-of-the-art waterproof instrument for dissolved oxygen (DO) measurement.
oxi::lyser
The oxi::lyser provides long-term real-time monitoring of dissolved oxygen levels. This optical sensor is long-term stable and maintenance free under normal operating conditions. Ideal for surface water, ground water, drinking water and waste water.
Ozone Meter
The Palintest Ozone Meter provides a simple means of measuring ozone residuals up to a level of 3.0 mg/l. Used in conjunction with the Palintest DPD method, it provides a level of simplicity and accuracy unrivalled in a portable, hand-held instrument.
Photometer 7100
The Photometer 7100 is fully integrated with the Palintest system of water analysis. It offers a great value instrumental analysis for an extensive range of water tests.
Photometer 7500
The Palintest Photometer 7500 takes portable water testing to new heights. The smooth good looks cover a solidly engineered instrument with a high specification and high performance.
Photometer 8000
The Palintest Photometer 8000 sets a new standard for water quality testing and ease of operation. It is designed to provide accurate and fast analysis for even the busiest test labs.
RDO Pro
The RDO Pro provides high-quality DO (Dissolved Oxygen) measurements using the latest optical technology. Includes integral 4-20 mA, Modbus/ RS485, and SDI-12 signal outputs.
TROLL 9500 to provide long-term online monitoring of DO levels. No membranes to replace!">RDO Sensor - Rugged Dissolved Oxygen
The RDO (Rugged Dissolved Oxygen) sensor is used in combination with the TROLL 9500 to provide long-term online monitoring of DO levels. No membranes to replace!
TROLL 9500
The TROLL® 9500 water quality instrument simplifies multiparameter monitoring. The TROLL 9500 is a powerful, portable unit that houses up to 9 water quality sensors, internal power, and optional data logging capabilities.
