ST-L808A Online Intelligent Dissolved Oxygen Detector is an online intelligent dissolved oxygen detector produced by our company with imported foreign accessories. It uses fluorescence method to measure dissolved oxygen, and emits blue light on the fluorescent layer. The fluorescent substance is excited to emit red light, and the oxygen concentration is inversely proportional to the time it takes for the fluorescent substance to return to the ground state.

ST-L808A Online Intelligent Dissolved Oxygen Detector is an online intelligent dissolved oxygen detector produced by our company with imported foreign accessories. It uses fluorescence method to measure dissolved oxygen, and emits blue light on the fluorescent layer. The fluorescent substance is excited to emit red light, and the oxygen concentration is inversely proportional to the time it takes for the fluorescent substance to return to the ground state. Utilize the analytical techniques of * to ensure the long-term stability, reliability, and accuracy of the instrument. It has functions such as Chinese menu style operation and notepad storage of measurement data. It can be widely used for continuous monitoring of dissolved oxygen values in solutions such as chemical fertilizers, metallurgy, environmental water treatment engineering, pharmaceuticals, biochemistry, food, aquaculture, and tap water.

Main Features

Adopting imported components and fluorescence measurement technology, it can work stably, reliably, and accurately for a long time.

The product has high precision, high stability, strong anti-interference and anti pollution capabilities, and is durable.

There is no oxygen consumption during measurement, and there are no excessive requirements for flow rate.

◇ New waterproof, dustproof, and moisture-proof high-quality shell (IP65) technology, surface painting technology, elegant instrument appearance, and draft end.

Simultaneous display of multiple parameters: dissolved oxygen value, temperature, output current, alarm point, etc. are displayed simultaneously, which is intuitive and easy to read, and there is a range overrun prompt.

◇ The screen displays the alarm status and can be accompanied by ON/OFF signal output at the same time.

◇ Automatic temperature compensation function: automatic 0-60 ℃.

The DO value corresponding to the 4-20 mA current output can be set arbitrarily.

◇ Set the hysteresis value arbitrarily to avoid frequent actions of the switch relay.

Watchdog function: Ensure that the instrument panel does not crash.

The core components are all from foreign brands.

◇ Factory settings can be restored.

◇ Power failure protection>10 years

◇ ABS plastic shell, protection level IP65, waterproof, dustproof and moisture-proof design.

Technical specifications of ST-L808A online intelligent dissolved oxygen detector

Measurement range: 0-20.00 mg/L; 0~60℃

◇ Resolution: 0.01mg/L, 0.1 ℃

Accuracy: ± 3% FS, ± 0.3 ℃

◇ Automatic temperature compensation: 0~60 ℃

Control interface: Two sets of ON/OFF relay contacts, divided into high point and low point alarm signal photoelectric isolation outputs.

◇ Signal isolation output: Optocoupler isolation protection 4-20mA signal output

◇ Relay: Relay hysteresis can be set arbitrarily, relay load 3A 220VAC

◇ Working conditions: The ambient temperature is between 0-60 ℃, and the relative humidity is ≤ 90%

◇ Output load: Load ＜ 750 Ω (4-20mA)

◇ Working voltage: 220VAC 10%, 50/60Hz or ordered DC24V and DC12V power supply

◇ Size: Instrument: 100 × 106 × 168mm; Probe diameter 55mm * Length 342mm

◇ Hole size: 92 × 92mm

Weight: Instrument: 0.9Kg, fluorescence probe: 1.85kg

Protection level: IP65, waterproof, dustproof, moisture-proof

For more product information, please consult our toll free hotline at +0086 400 880 6367