Remond Digital Optical Dissolved Oxygen Sensor DO Probe RS485 0-20ppm

Digital Optical Dissolved Oxygen Sensor DO Probe RS485 Fluorescence DO Sensor for Aquaculture

Product Description

The fluorescence method dissolved oxygen sensor is based on the fluorescence quenching principle. Blue light illuminates the fluorescent material to excite and emit red light. Since oxygen molecules can take away energy (quenching effect), the time and intensity of the excited red light are inversely proportional to the concentration of oxygen molecules. By measuring the phase difference between the excitation red light and the reference light and comparing it with the internal calibration value, the concentration of oxygen molecules can be calculated.

Features:

Fluorescence method principle
No need electrolyte, easy maintenance
Automatic temperature compensation
4-20mA output signal
Support RS-485, Modbus/RTU protocol
IP68 protection, waterproof
No need controller or transmitter
Can be directly connected to computer, PLC  etc
Quick response, high precision
7*24 hours continuous online monitoring

Application:

Suitable for aquaculture, environmental monitoring, fish pond, food, chemical industry, sewage treatment, water treatment plant, power plant water treatment, rivers, lakes, seas and other water environment monitoring.

Optical DO sensor specification

Measuring range0-20ppm
Power supply DC9 -30 V
Output signal RS485, 4-20mA
Principle Fluorescence method
Material PC, stainless steel
Calibration method Two point calibration
Thread G3/4, G1
ICable length 5m
Protection grade IP68