MS-301 Multi parameter Water Quality Sensor
Web:www.boquinstrument.com
conductivity, and the output unit is ppm.
Because the chemical composition of different water bodies causes different ionic properties, the
conductivity cannot fully calculate the amount of TDS.
TDS Sensor Specification
Principle
Converted by conductivity
Range
0-1000 mg/L(K=1)
50-500000 mg/L(K=10.0)
Resolution
0.1 mg/L ~1 mg/L(Related to Range)
Accuracy
±3%
2.5 Dissolved Oxygen Sensor
Principle:
Dissolved oxygen is a measure of the amount of oxygen present in a body of water and is usually referred
to as DO. The dissolved oxygen sensor is measured by fluorescence method. The top of the sensor is
covered with a layer of fluorescent substance. When the blue light emitted by the sensor is irradiated to
the fluorescent substance, the fluorescent substance is excited to emit red light, and the oxygen molecule
can carry away energy (quenching effect). Therefore, the time and intensity of the excited red light is
inversely proportional to the concentration of oxygen molecules, and the concentration of dissolved
oxygen in the water can be obtained by calculation. The appearance of the dissolved oxygen sensor is
shown in 7.
Measurement / Interference:
1. When measuring, the air bubbles attached to the film must be avoided.
2. The presence of chlorine can distort the measurement results (overestimating the dissolved oxygen
level).
3. After the sensor is inserted into the measurement environment, wait for the sensor temperature to
stabilize before starting measurement.
Safety Cautions
Hazardous film factors are: chemicals (organic solvents, acids and peroxides); mechanical damage (impac
t, friction or tear)