Various Factors Affecting The Detection Accuracy of Oil Concentration Alarms

The marine 15PPM oil concentration alarm is a monitoring and alarm equipment specially used in the marine field. Its core function is to monitor the oil concentration in ship discharged sewage (such as bilge water, etc.) in real time. 

When the oil concentration is detected to reach or exceed 15PPM (parts per million, that is, 15 parts of oil per million parts of water). Once the limit is set, an alarm signal can be quickly sent out to remind the crew to take corresponding measures to ensure that the sewage discharged by the ship complies with the strict requirements of the International Maritime Organization (IMO) and relevant environmental protection regulations for the discharge of oily sewage, and to prevent oil pollution to the marine environment. pollute.

The detection accuracy of the oil concentration alarm will be affected by the following factors:

Differences in oil types: Different types of oil have different physical and chemical properties, such as density, refractive index, absorption spectrum, etc. These properties will affect the accuracy of the alarm's detection of oil content. For example, the different compositions and properties of diesel and lubricating oil may lead to differences in their absorption and scattering of light, which in turn affects the measurement results.

Impurity content: Impurities present in the measurement medium, such as solid particles, moisture, salt, etc., may interfere with the accurate measurement of oil concentration. Impurities can change the path of light, absorb or scatter it, causing measurement errors. For example, suspended solid particles in the water may enhance scattered light, causing the alarm to misjudge an increase in oil concentration.

Uniformity of oil distribution: If the oil is unevenly distributed in the medium and the local oil concentration is too high or too low, the sampling will be insufficiently representative and affect the measurement accuracy. For example, in bilge water, oil droplets may aggregate or stratify, causing the oil concentration at the sampling point to not accurately reflect the overall oil content.