Manufacturer: Thermo Scientific
Brand: Thermo Scientific Orion
Model: STARA1230
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The Thermo Scientific
Orion Star A123 Dissolved Oxygen Meter is a portable dissolved oxygen (DO) and temperature meter with automatic temperature, manual salinity input, and manual barometric pressure compensation to ensure accuracy. The meter can be calibrated by the water-saturated air method or Winkler titration method. The LCD screen displays icons, messages, and information such as DO reading in mg/L or % saturation, temperature in °C or °F, meter mode, and battery life. The ready indicator shows when readings are stable. The meter takes an Orion polarographic DO probe (sold separately) and runs on four AA batteries (included) or on AC power via the universal power adapter (sold separately). The memory holds up to 50 data points. The meter housing is waterproof, with Ingress Protection 67 (IP67). Additional certifications include European Conformity (CE), Technical Inspection Association (TÜV), and Federal Communications Commission (FCC) Class A limits. DO meters are commonly used in water-quality testing applications. SpecificationsDO concentration range0 to 20mg/LDO concentration resolution0.01, 0.1DO concentration relative accuracy+ or - 0.2mg/LDO % saturation range0 to 200DO % saturation resolution0.1, 1DO % saturation relative accuracy+ or - 2%Temperature range0° to 50° CTemperature resolution0.1Temperature relative accuracy+ or - 0.1Salinity factor0 to 45ppt, manual Dissolved oxygen (DO) meters measure the amount of dissolved oxygen present in water. The amount of DO helps to determine, for example, drinking water quality, the health of lakes or streams, and aquatic organism sustainability. A probe, also called a sensor or electrode, is inserted into the sample to perform the measurement, and the results appear on the meter display. Applications include sewage and water treatment plants, pollution control, fish farms, and various types of manufacturing. Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Sc...