Dissolved oxygen analyzer Expert-009 (optical)
Dissolved oxygen analyzer Expert-009 (optical). The dissolved oxygen analyzer is designed to measure the mass concentration of dissolved oxygen, temperature in water and aquatic environments, as well as biochemical oxygen consumption according to measurement methods. The analyzer can be used in chemical-technological, agrochemical, environmental and analytical laboratories of industrial enterprises, research institutions, control, inspection and supervision bodies for the analysis of natural and waste waters, process solutions and aqueous extracts of samples of plant and food products. The analyzer consists of a measuring transducer and a set of primary transducers: an optical sensor for oxygen dissolved in water with a built-in thermoelectric converter, allowing modified substrates to be attached to the sensitive element, for example, for express determination of BOD. The device has a built-in battery with the ability to charge from the network via an AC adapter. It is possible to transfer current readings to a PC or mobile device via RS 232, USB or Bluetooth. The measuring transducer is made on the basis of a microprocessor with autonomous power supply and presentation of measurement results on a built-in LCD display, or on an external connected device, for example, a PC. Manba: https://www.nv-lab.ru/catalog_info.php?ID=6235
- Feature: Parameter
- Overall dimensions of the measuring transducer, mm: 200×110×70
- Weight of the measuring transducer, kg: 0.95
- Battery/mains power supply: Yes
- Time to establish the operating mode (preheating) no more, sec: 30
- Limits of permissible relative error of analyzers when measuring the mass concentration of dissolved oxygen at the temperature of the analyzed medium (25±1)°С, %: ±5
- Limits of permissible relative error of analyzers when measuring the mass concentration of oxygen at a temperature of the analyzed medium of 5°С-50°С, except for temperature (25±1)°С, %: ±10
- Limits of permissible absolute error in measuring the temperature of the analyzed solution, °C: ± 0.5
- Time to establish analyzer readings when measuring oxygen concentration and temperature, min, no more than: 5
- Change in analyzer readings over 8 hours of operation at any point in the measurement range at the same oxygen content and temperature in the analyzed environment, taking into account changes in atmospheric pressure: no more than half the permissible error limit