Water sensors are an essential part of any oil filtration system. If water gets into your oil or fuel, it can corrode your machines leading to downtime and expensive repair work. The oil itself may develop water-based germs, specifically mould and algae.

These ‘fuel bugs’ can render your oil unusable, but they can also interfere with your production line. Selecting the right water sensor can help you evade this challenge. Here are some criteria you can use to make the appropriate choice.

Indicator light

Sensors function by detecting any drops of water or steam inside your fuel. This water generally sinks to the bottom of the filtration tank, because it’s denser than oil. However, if it’s not evacuated, it can still do some damage. On a good sensor, a light will go on to show the presence of water, so that a machinist can open the water valve.

Audible alarms

Water sensors may function automatically, or they may need an operator to play an active role. Because factories are sometimes noisy and full of distractions, the filter operator may not notice the blinking light. If the sensor has a loud alarm, it can help to call his attention to contaminants, so that he can press the switch and release the water sump.

Self-grounding

Electronic devices are susceptible to short-circuiting, especially if they’re immersed in liquid. Surges of current could fry the equipment, or shock the person handling them. Many devices are grounded by peeling off a portion of the paint to break the circuit. However, a suitable water sensor should have self-grounding properties. Using a stainless steel probe surrounded by brass threads offers effective self-grounding.

Product versatility

Multi-purpose machinery and devices are an excellent way to cut down production costs. If a single water sensor can be used to clean different types of oil and petroleum derivatives, it saves the cost of buying multiple units. Buy a sensor that is compatible with common manufacturing fluids, such as vegetable oil, used waste oil, sludge dewatering, polish, or biofuel. It should also be compatible with different filtration brands.

Non-corrosive parts

Your water sensor will be immersed in oil throughout, with a light current passing through the liquid. Any oxygen particle inside the liquid can fuse with the water to cause rust, which can prevent your sensor from working properly. Check what the internal components of the sensor are made of. Ideally, it should be a material that resists corrosion.

Service warranty

Moving machines require a certain level of maintenance. Parts need to be replaced, and breakages need to be repaired. Sometimes, you just need someone to check your equipment and tell you why it’s no working. These technical visits can add up to a lot, especially if your repairman bills by the hour. Getting a water sensor with a warranty absorbs most of this cost.

To explore our water sensor options, call Interfil today on 02 9533 4433.

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