TS210 Temperature String

The NexSens TS210 Temperature String provides high precision measurements for profiling in lakes, streams, and coastal waters.

Features

Titanium Thermistor

Each node features an integral titanium thermistor secured and epoxied in a protective housing for underwater deployments.

Marine-Grade Cable

Nodes are integrated using marine-grade cables with braided Kevlar core and epoxy seal. Strings are available in multiple standard increments.

High Accuracy

Each sensor is accurate to +/-0.075 C. The exposed titanium thermistor makes direct contact with water, allowing readings to stabilize within 60 seconds.

Data Output

Temperature data is transmitted on a RS-485 Modbus RTU string bus for integration with data loggers and SCADA systems.

Expandable

Strings terminate in a NexSens UW plug and receptacle connector, allowing additional sections or sensors to be added as required.

Documents

Tech Specs

Sensor: Thermistor
Range: 0 to 45 C (32 to 113 F)
Accuracy: +/-0.075 C
Resolution: 0.01 C
T90 Response Time: 60 seconds
Refresh Rate: 2 seconds
Maximum Sensors: 250
Maximum Length: 1219m (4000 ft.)
Maximum Depth: 200m (656 ft.)
Communications: RS-485 Modbus RTU
Power Requirement: 4-28 VDC
Current Draw Per Node: 1.3mA active; 0.35mA sleep; 0.05mA deep sleep
Connector: 8 pin, sensorBUS
Dimensions: 7.62cm L x 3.56cm Dia. (3.0" L x 1.4" Dia.)

Q&A

What is the difference between the T-Node FR and the TS210?

The TS210 is a more affordable and generally more robust temperature string, as the cable is epoxied to both ends of the thermistor in place of connectors. The connectors on either end of the T-Node FR sensor allows the end user to add, remove, and reconfigure the string themselves, making it a more flexible solution.

What are the maintenance requirements of the TS210 temperature string?

Temperature strings require minimal maintenance. Remove any bio-fouling with a cloth or soft bristled brush and soapy water. NexSens temperature strings hold their calibration for the life of the sensor, so they do not need to be recalibrated. In the offseason, sensor strings should be stored in a cool, dry place.

Will freezing conditions damage a TS210 sensor?

NexSens does not recommend deploying the thermistor string in any conditions that pose a risk of freezing, as it is outside of the measurement range and can be detrimental to the sensor. The TS210 accurately reads water temperatures no lower than 32° F (0° C), and the PVC housing can crack and fail from the stress of freezing and thawing.

Accessories

NexSens UW Sensor Port Plug

NexSens 3/16" Stainless Steel Mooring Lines

NexSens UW Receptacle to Flying Lead Cables

NexSens RS-485 UW Sensor USB Adapters

NexSens Thermistor String Mooring Clamp Kit

NexSens RS-485 to RS-232 Adapter

Case Studies

Monitoring An Active Thermocline, Rapid Changes

Beginning in the 1990s, researchers have collected samples manually every few weeks on trips to Lake Champlain to gather data on its dynamics. But the metrics the team has collected are spotty, considering the faster-paced changes fueled by a changing climate. To help fill in those holes, researchers from the State University of New York (SUNY)—Plattsburgh deployed a cellular data buoy in the lake near Valcour Island. The buoy is […]

Lake Nipissing Algae Events

Despite Lake Nipissing’s popularity as a destination for tourists and fishermen in Ontario, Canada, relatively little is known about nutrient availability for algae that sometimes blooms there. Luckily, several investigators at the University of Saskatchewan and Nipissing University are working to fill the gap in understanding. Key to answering their questions is learning more about the lake’s stratification, or how its water column differentiates based on changes in temperature. These […]

Managing Plant Discharge Temperatures

The Southern Illinois Power Cooperative operates a power plant near Lake of Egypt around the clock to produce energy for its customers. All the activity can stress the plant’s infrastructure, so key to continuing its operations is minimizing that stress as much as possible. One of the main issues that plant managers encounter in overseeing operations is keeping equipment from overheating. They routinely pump in water from the lake to […]