Shanghai Yetuo Dissolved Oxygen Analyzer

Shanghai Yetuo Dissolved Oxygen Analyzer：

Application: It is a brand new microgram level dissolved oxygen analyzer. Applicable to the requirements of GB/T12157-2022 and HJ506-2009 standards, the latest polarographic analysis technology is adopted to ensure stability and accuracy in (ultra) low concentration measurements, greatly improving measurement performance and usage environment.

Principle: The continuous measurement method for DO is the diaphragm electrode method. The diaphragm is composed of polytetrafluoroethylene fibers, polyethylene, etc., with platinum as the positive electrode and aluminum and lead as the negative electrodes. The two metal electrodes are immersed in an electrolyte solution, and the electrodes and electrolyte solution are housed in a small chamber of an aerobic semi permeable membrane. Connect the current measurement circuit, and molecular oxygen in the water diffuses through the membrane to the electrode surface, causing an electrode reaction. When the electrode parameters are constant, at a certain temperature, the stable diffusion current is proportional to the oxygen concentration in the water sample

Features

Adopting * SMT technology and integrated design, high integration circuit design is stable and durable

● * microcontroller technology, high performance, low power consumption

● Storage function: 3000 cyclic storage entries

Standard output signal types are optional, and alarm relays can be set arbitrarily

Imported film head, 24 bit A/D signal acquisition, high measurement accuracy, accurate and reliable

Chinese menu style operation, easy to understand, quick and convenient to operate

Standard output model types are optional, and alarm relays can be set arbitrarily

● Data loop storage function, automatically clearing overflow data, simple operation, easy query, power-off data storage for more than 10 years

Shanghai Yetuo Dissolved Oxygen AnalyzerTechnical Indicators:

Display: 128 × 64 Chinese LCD display, Chinese operation

Measurement range: (0.00~100) μ g/L, (100~1000) μ g/L, (1.00~20.00) mg/L (automatic switching)

Resolution: 0.01 μ g/L (0.00-100) μ g/L; 1.0μ g/L (100 ～1000)μ g/L；

0.01mg/L (1.00～20.00)mg/L；

Accuracy: ≤ 1.5% F · S

Response time: T90<5 minutes (25 ℃)

Temperature compensation range: (0-60.0) ℃

Water sample temperature: (5-45) ℃

Environmental temperature: (0-60) ℃

Environmental humidity: ≤ 85% RH (no condensation)

Protection level: IP65

Analog signal: current output (0-10) mA, (0-20) mA, (4-20) mA, optional load<300 Ω

Digital signal: RS485

Alarm relay: 220V/3A

Power supply: AC (85-265) V

Frequency: (45-65) Hz

Power: ≤ 15W

Dimensions: 145mm × 120mm × 150mm

Hole size: 138mm × 138mm

Weight: 0.64kg