How are online water quality sensors installed?
Online water quality sensors can be installed in several ways, including immersion installation, flow-through cell installation, fixed bracket installation, buoy installation or pipe-mounted installation. The best method depends on the water body, flow condition, maintenance access and monitoring objective. For rivers and lakes, immersion installation with a fixed bracket or buoy is common. For wastewater and industrial process water, a flow-through cell may be easier to maintain. The sensor should be installed where the water sample is representative and where the probe is protected from impact or sediment accumulation.
Do the sensors need calibration before use?
Many water quality sensors need calibration before use or periodic calibration during operation. pH, ORP, dissolved oxygen, conductivity and ion-selective sensors usually require calibration according to the sensor type and project accuracy requirements. Some optical sensors may require less frequent calibration but still need cleaning and inspection. YexSensor can provide user manuals and calibration guidance. For long-term monitoring projects, it is recommended to build a maintenance schedule instead of waiting until the data becomes abnormal.
How often should water quality sensors be cleaned?
Cleaning frequency depends on the water quality and installation environment. Clean water applications may only require periodic inspection, while wastewater, algae-rich lakes and aquaculture ponds may require more frequent cleaning. Fouling, sediment, biofilm and floating matter can affect measurement accuracy, especially for optical sensors and membrane-based probes. If the project site has heavy fouling, consider anti-fouling accessories, automatic cleaning options or a maintenance plan. Regular cleaning helps keep online data stable and reduces sensor drift.
How can fouling be reduced in river, lake or wastewater applications?
Fouling can be reduced by selecting the correct installation position, avoiding sediment accumulation zones, using protective housings and cleaning the sensor regularly. In algae-rich or wastewater environments, automatic wipers or self-cleaning structures may be helpful for certain sensor types. The sensor should not be installed where trash, floating plants or strong water impact can damage the probe. YexSensor can recommend installation methods based on photos or drawings of the site.
Can the sensor cable length be customized?
Yes, cable length can often be customized according to installation depth and cabinet location. For tanks, wells, reservoirs and deep water installations, longer cable length may be required. For riverbank or cabinet installations, the cable length should allow safe routing without excessive tension. Before ordering, please confirm the distance from the sensor installation point to the controller or junction box. Proper cable length helps reduce field wiring work and improves installation reliability.
