Dissolved oxygen sensor RS485 dissolved oxygen probe 4-20mA DO sensor for aquarium

For aquaculture, if dissolved oxygen levels are too low, fish can suffocate and die as a result. In wastewater treatment plants, bacteria break down solids. If DO levels are too low, bacteria die and decomposition stops; if dissolved oxygen levels are too high, then energy is wasted through aeration of the water. In industrial applications, including boilers, supplemental water must have low DO levels to avoid corrosion and boiler fouling. Monitoring dissolved oxygen levels is critical to ensure process efficiency, as boiler fouling inhibits heat transfer. High dissolved oxygen levels in water can improve the taste of drinking water. However, high dissolved oxygen levels can increase corrosion in water pipes and transport lines.

Advantages of optical dissolved oxygen measurement

• Easy use, no membrane, no electrolyte.
• Long lifetime, maintenance free and less calibration.
• No flow dependency and fast response.
• Immune to electrical interference, no chemical interference.

Technical Specifications

Notes:

1) Avoid exposing the inner surface of the fluorescent cap to sunlight.

2) Do not touch the fluorescent film with your hands.

3) Avoid any direct application of mechanical stress (pressure, scratches, etc.) to the fluorescent film during use.

Cable information

4 wire AWG-24 or AWG-26 shielding wire. OD=5mm

• Red line----power supply (VCC)
• White line---- 485 data -B (485-B)
• Yellow line---- 485 data -A (485-A)
• Black line----ground (GND)
• Bare line---- shielding layer