The EXO Wiped Conductivity & Temperature Sensor Helps Eliminate Biofouling

This is the first of many expansions to come for EXO Sondes, and more importantly the first step in fulfilling our promise to customers to build an-ever evolving monitoring platform.

For most sonde customers, field servicing of water quality sensors is a significant part of their monitoring budgets.

The Alliance for Coastal Technologies (ACT) estimates that maintenance costs on water quality instruments due to biofouling consume 50% of operational budgets. Tweet this. Using various available anti-fouling technologies will extend deployment intervals, resulting in fewer trips into the field for instrument service and also improved accuracy of the data collected.

While there are a variety of factors that play into how long a sonde can be deployed collecting continuous water quality data, more often than not the major limitation is how long the conductivity sensor can remain free of fouling. EXO Wiped CT in Field

The design of most conductivity sensors presents a problem for anti-fouling systems. The collection of high quality conductivity data requires a clear flow of water through the conductivity cell and past the electrodes inside the sensor. Any obstruction to the conductivity channel will result in measurement error, and until now our most powerful anti-fouling tool – EXO’s Central Wiper – could not reach the entire conductivity cell.

So What’s the Solution?

We’ve been busy over the past few years at YSI developing a conductivity sensor purpose-built for long-term continuous monitoring. The new Wiped Conductivity & Temperature Sensor for the EXO platform is the culmination of years of field testing and experimentation.

The innovation behind the new sensor centers on the conductivity cell itself. While most conductivity cells cannot be fully cleaned by a mechanical wiper, our new design allows the EXO Central Wiper to thoroughly groom areas previously vulnerable to fouling.

Most importantly, upgrading to the new EXO Wiped Conductivity/Temperature Sensor is as easy as plugging it into the sonde. Like all other EXO sensors, the new design is plug-and-play, leveraging the sonde’s universal sensor ports. There’s no need to send equipment into the factory for weeks to change the bulkhead or other hardware components like with other instruments.

YSI designed the EXO platform to be flexible and modular, so with any enhancement we make or any new sensor we offer, it’s simple to upgrade.

EXO-Wiped-CT-Sensor-Studio.jpg

 

Additional Blog Posts of Interest

Water Quality Monitoring Challenges | 1 of 5

5 Tips to Prevent Costly Mistakes with Your Sondes | Tip 1 of 5

5 Easy Steps: Replacing the Optical DO Sensor Cap on YSI EXO Sondes

Trouble Collecting Data with Your Water Quality Sonde? Try This!

1 Responses to this article

UV C LED's and ultrasonic source also can be used in conjunction with wiping, to reduce and even eliminate biofouling

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