YSI Videos | ysi.com

YSI Webinar | How Anti-Fouling Works

Mon, 09 Aug 2021 08:38:05 GMT

One of the largest barriers to the search for good water quality data is the threat of fouling, which is why having a strong anti-fouling plan in place for your EXO Sonde is critical for long-term monitoring projects. Putting anti-fouling technologies in place can extend deployment intervals for your EXO Sonde or other long-term monitoring equipment. This can result in fewer trips to the field for equipment service and improved accuracy of water quality data. If you’ve ever experienced fouling in the field, this webinar is for you.

In this educational webinar, we will discuss:

Common sources of fouling from soil and algae to barnacles and other animals
Fouling’s effects on water quality data (drifts, spikes, and damaged equipment)
The evolution of anti-fouling technology from plastic sleeves to UV light
Expert tips to mitigate fouling from the sensor tips to the sonde body and even the cable
Data longevity and how to reduce site visits required during deployments
Real-world examples that demonstrate the application and benefit of anti-fouling measures

Helpful time stamps:
00:29 – Why is Anti-fouling Important?
02:46 – Freshwater Fouling
05:55 – Marine Fouling
09:28 – Evolution and Principles of Anti-fouling Technology
18:18 – Recommended Cleaning Procedures
28:10 – Extra Deployment Steps
35:06 – Q&A

YSI Webinar | How Dissolved Oxygen Sensors Work

Tue, 29 Oct 2019 14:16:57 GMT

From sustaining aquatic life to the tight control of wastewater treatment, dissolved oxygen (DO) plays a role in nearly every water quality application.

In this educational webinar, we discuss:

Applications where DO measurement is critically important,

The evolution of sensor technologies for measuring DO in the field,

The underlying principles of how the most current optical DO sensors work, and

Real-world examples that demonstrate both the value and limitations of field-based measurements of DO.

Helpful time stamps:
00:24 – Chris starts talking
00:53 – Why Monitor for DO?
17:03 – Evolution of DO Monitoring
21:13 – Principles
26:44 – Practice
35:42 – Q&A

Resources:

Environmental Supersaturation of Dissolved Oxygen Tech Note (PDF)

The Dissolved Oxygen Handbook (register for PDF)

Dissolved Oxygen Meters Q&A | The Ultimate List (Blog Post)

About Dissolved Oxygen

Questions? Let us know.

YSI Webinar | How pH and ORP Sensors Work

Tue, 24 Sep 2019 08:23:04 GMT

The pH of a water body can affect nearly all aquatic life in a system, and the oxidative-reductive potential is a related, but underappreciated parameter particularly in environmental and wastewater applications.

Reasons to measure both pH and ORP,
The principles of operation of Ion Selective Electrodes (ISEs) as they’ve been adapted from the laboratory to the field,
Best practices for maintaining and troubleshooting measurements, and
Real-world practice to demonstrate both the value and limitations of field-deployed pH and ORP sensors.

Helpful time stamps:
1:01 – Savannah starts talking
4:00 – Ben starts talking
4:49 – pH/ORP: What and Why?
12:29 – pH Sensor: History, Types, Construction
19:44 – Calibration, Care, and Practical Use
35:33 – Real-World Applications
43:47 – Q&A

Download the pH Handbook - The Practical Guide to pH Measurements

About pH

Questions? Let us know.

YSI Webinar | How Conductivity Sensors

Mon, 26 Aug 2019 09:14:55 GMT

Conductivity is a critical parameter in virtually every water quality monitoring application as it correlates to ionic concentration and the purity of water.

In this educational webinar, we will discuss:

Why it is important to monitor conductivity,
Differences between conductivity, specific conductance, and salinity
Conductivity sensor technology and principles of operation,
Real-world practice to demonstrate both the value and limitations of field-deployed conductivity sensors.

Helpful time stamps:
1:22 – Savannah starts talking
3:55 -- Zack starts talking
4:34 – What is Conductivity and Why is it Important?
15:34 – Differences between Conductivity, Specific Conductance, & Salinity
23:21 -- How Conductivity Sensors Work: Principles
36:17 – Real World Application: Values, Limitations, and Best Practices
51:59 -- Q&A

About Conductivity

Questions? Let us know.

YSI Webinar | How Turbidity Sensors Work

Tue, 30 Jul 2019 09:02:36 GMT

This webinar describes the underlying principles and best practices to use with turbidity sensors. YSI’s Kerry Hubbard, Outdoor Water Monitoring Specialist, divided the presentation into four sections:

• Why Monitor for Turbidity?
• Evolution of Turbidity Monitoring
• How Turbidity Sensors Work: Principles
• How Turbidity Sensors Work: Best Practices

Plus, there is a Q&A session at the end where Kerry answers audience questions!

Helpful time stamps:

3:05 -- Kerry starts talking

4:25 -- Why Monitor for Turbidity?

14:10 -- Evolution of Turbidity Monitoring

21:13 -- How Turbidity Sensors Work: Principles

28:10 -- How Turbidity Sensors Work: Best Practices

41:57 -- Q&A

About Turbidity

Questions? Let us know.

YSI Webinar | How Algae Sensors Work

Wed, 03 Jul 2019 09:37:10 GMT

This webinar describes the underlying principles and best practices to use with algae sensors. YSI’s Dr. Stephanie A. Smith divided the presentation into four sections:

Why Monitor for Algae?
Evolution of Algae Monitoring
How Algae Sensors Work: Principles
How Algae Sensors Work: Best Practices

Plus, there are over 30 minutes of Q&A where Dr. Smith answered the audience’s questions!

Helpful time stamps:

4:12 -- Stephanie starts talking

5:20 – Why Monitor for Algae?

9:38 – Evolution of Algae Monitoring

15:46 – How Algae Sensors Work: Principles

33:37 – Impromptu Q&A

38:40 – How Algae Sensors Work: Best Practices

55:52 – Final Poll and Q&A

About Algae

Questions? Let us know.