YSI EXO Conductivity & Temperature Sensor
Description
The EXO conductivity & temperature sensor is a digital smart sensor featuring welded titanium construction and wet-mateable connectors.
Features
- 0 to 200 mS/cm measurement range
- T63<2 sec response time
- ±0.5% of reading or 0.001 mS/cm accuracy from 0 to 100
Details
The EXO combination conductivity and temperature sensor should be installed in a sonde in nearly all sonde applications. Not only will this sensor provide the most accurate and fastest response temperature data, but it will also provide the best data for the use in temperature compensation for the other EXO probes. The conductivity data is used to calculate salinity, non-linear function (nLF) conductivity, specific conductance, and total dissolved solids, and compensate for changes in density of water (as a function of temperature and salinity) in depth calculations if a depth sensor is installed.
Temperature Thermistor
The temperature sensor uses a highly stable and aged thermistor with extremely low-drift characteristics. The thermistor’s resistance changes with temperature. The measured resistance is then converted to temperature using an algorithm. The temperature sensor receives a multi-point NIST traceable wet calibration and the accuracy specification of 0.01˚C is valid for expected life of the probe. No calibration or maintenance of the temperature sensor is required, but accuracy checks can be conducted.
Conductivity Electrodes
The conductivity sensor uses four internal, pure-nickel electrodes to measure solution conductance. Two of the electrodes are current driven, and two are used to measure the voltage drop. The measured voltage drop is then converted into a conductance value in milliSiemens (millimhos). To convert this value to a conductivity value in milliSiemens per cm (mS/cm), the conductance is multiplied by the cell constant that has units of reciprocal cm (cm-1). The cell constant for the conductivity cell is approximately 5.5/cm ±10%. For most applications, the cell constant is automatically determined (or confirmed) with each deployment of the system when the calibration procedure is followed.
Temperature Compensation
EXO sensors have internal thermistors for quality assurance purposes. Turbidity uses the internal thermistor for temperature compensation, while all other EXO sensors reference the C/T probe for temperature compensation. To display and log temperature, a C/T probe must be installed in an EXO sonde. Thermistor readings are logged in the sonde’s raw data–viewable in KOR software–but are not included in data exported to Excel.
| Image | Part # | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
|
599870 | EXO conductivity & temperature sensor | In Stock | |||
| Image | Part # | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
|
065270 | 3161 conductivity standard, 1,000 uS, 1 quart |
$69.35
|
Usually ships in 3-5 days | ||
|
065272 | 3163 conductivity standard, 10,000 uS, 1 quart |
$69.35
|
In Stock | ||
|
065274 | 3165 conductivity standard, 100,000 uS, 1 quart |
$69.35
|
Usually ships in 3-5 days | ||
|
060907 | 3167 conductivity standard, 1,000 uS, 8 pints |
$118.75
|
In Stock | ||
|
060911 | 3168 conductivity standard, 10,000 uS, 8 pints |
$118.75
|
In Stock | ||
|
060660 | 3169 conductivity standard, 50,000 uS, 8 pints |
$118.75
|
Usually ships in 3-5 days | ||
|
599867 | EXO anti-fouling copper screen kit, pack of 2 |
$75.00
|
In Stock | ||
|
599470 | EXO conductivity/temperature sensor cleaning brush, pack of 2 |
$11.00
|
In Stock | ||
Related Products
In The News
Bacterium Breaks Down Ammonium in Sewage and Runoff Without Oxygen
Wetlands are one of nature's plans for treating water. Home to a host of different microbes, riparian wetland soils play matchmaker to nutrient-rich runoff and bacteria that feast on nutrients and other environmental toxins. Princeton University researchers have discovered one such bacterium—Acidimicrobiaceae bacterium A6—that can break down ammonium, part of both fertilizer and sewage runoff, without oxygen. This ability could mean wastewater treatment without expensive aeration machinery. Peter Jaffé , Princeton's William L. Knapp '47 Professor of Civil Engineering and a professor at Princeton's Andlinger Center for Energy and the Environment , corresponded with EM about the latest research . Dr. Jaffé and his team first published on A6 in 2015.
Read More
Monitoring and Tracking Ocean Microbes with LRAUVs
In March and April of 2018, researchers from the University of Hawai'i at Mānoa (UH Mānoa) and the Monterey Bay Aquarium Research Institute (MBARI) deployed a small fleet of long-range autonomous underwater vehicles (LRAUVs) in the waters of the Pacific near Hawaii. These LRAUVs automatically collect and archive samples of seawater, enabling scientists to study and track ocean microbes with a level of detail that is unprecedented. Chasing eddies The team who undertook the expedition on the research vessel Falkor was hoping to survey and track Mesoscale eddies within the North Pacific Subtropical Gyre (NPSG) using a suite of oceanographic instruments.
Read More
Toxic Chemicals in Plastic Pollution Littering Freshwater Habitats
When we consider the glut of plastic rapidly accumulating all over the world , it's easy to see the problem of pollution and disposal of substances that don't biodegrade. However, it's not always as apparent to us that plastic pollution also means a growing number of toxic chemicals in the environment, many of which can be harmful to ecosystems. Plastic polymers and the products made from them are wildly diverse as to chemical properties, composition, and range of potential applications, although most plastics are made from petrochemicals. Throughout the very long lifespan of any given plastic product, the material may release various hazardous substances .
Read More
Follow Us