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T-Node FR

NexSens T-Node FR Thermistor String

NexSens T-Node FR Thermistor String

Description

The NexSens T-Node FR thermistor string provides high precision temperature measurement in an addressable and connectorized assembly.

Features

  • Build multi-point temperature strings by connecting T-Nodes to underwater cables
  • +/- 0.075 C accuracy for precision temperature measurements
  • Includes sensorBUS for connecting other smart sensors
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$249.00
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Details

The NexSens T-Node FR Thermistor String provides high precision measurements in a connectorized and addressable architecture for water quality profiling. Each node features an integral titanium thermistor secured and epoxied in a protective housing for underwater deployments. The nodes are connected in-series using marine-grade UW Cables with braided Kevlar core and double O-ring seals.

Each T-Node FR sensor is accurate to +/-0.075 C for high-precision measurements. The exposed titanium thermistor makes direct contact with water, allowing readings to stabilize within 60 seconds. Temperature data is transmitted on a RS-485 Modbus RTU string bus for integration with data loggers and SCADA systems. The string is powered by 4-28 VDC for operation on a 12 or 24 VDC power supply.

Mating UW Cables are available in lengths from 0.5m to 50m with a maximum 1,219 meters (4,000 feet) or 250 nodes. Strings terminate in a NexSens UW plug and receptacle connector, allowing additional sections or sensors to be added as required. Optional accessories include water quality sensors, pressure sensors, signal splitters, cable clamps, stainless steel mooring line, and communication adapters.

Notable Specifications:
  • 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.)
  • Communications: RS-485 Modbus RTU
  • Power Requirement: 4-28 VDC
  • Current Draw Per Node: 1.3mA active; 0.35mA sleep; 0.05mA deep sleep
  • Connection Seal: Double o-ring, gland and face seal
  • Connector: 8 pin, sensorBUS
  • Dimensions: 13.46cm L x 3.56cm Dia. (5.3" L x 1.4" Dia.)
Image Part # Product Description Price Stock Order
NexSens T-Node FR Thermistor String T-Node FR T-Node FR thermistor string sensor, UW connector
$249.00
Usually ships in 3-5 days
Image Part # Product Description Price Stock Order
NexSens Underwater Cable Assemblies UW-0.5 Underwater cable assembly, 0.5m
$145.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-1 Underwater cable assembly, 1m
$150.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-1.5 Underwater cable assembly, 1.5m
$155.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-2 Underwater cable assembly, 2m
$160.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-3 Underwater cable assembly, 3m
$170.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-4 Underwater cable assembly, 4m
$179.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-5 Underwater cable assembly, 5m
$189.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-6 Underwater cable assembly, 6m
$199.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-8 Underwater cable assembly, 8m
$219.00
Usually ships in 3-5 days
NexSens Underwater Cable Assemblies UW-10 Underwater cable assembly, 10m
$238.00
Usually ships in 3-5 days
NexSens UW-PLUG Sensor Port Plug UW-PLUG UW sensor port plug
$29.00
Usually ships in 3-5 days
NexSens Thermistor String Mooring Clamp Kit TS-Clamp Mooring clamp kit for communication cable & 3/16" vinyl coated SS wire rope, pack of 2
$59.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-10 Custom built 3/16" vinyl coated SS mooring line, 10'
$60.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-15 Custom built 3/16" vinyl coated SS mooring line, 15'
$65.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-25 Custom built 3/16" vinyl coated SS mooring line, 25'
$75.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-50 Custom built 3/16" vinyl coated SS mooring line, 50'
$100.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-75 Custom built 3/16" vinyl coated SS mooring line, 75'
$125.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-100 Custom built 3/16" vinyl coated SS mooring line, 100'
$150.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-125 Custom built 3/16" vinyl coated SS mooring line, 125'
$175.00
Usually ships in 3-5 days
NexSens 3/16" Stainless Steel Mooring Lines SS187-150 Custom built 3/16" vinyl coated SS mooring line, 150'
$200.00
Usually ships in 3-5 days
NexSens UW Receptacle to Flying Lead Cables UW-FL3R UW receptacle to flying lead cable, 3m
$120.00
Usually ships in 3-5 days
NexSens UW Receptacle to Flying Lead Cables UW-FL1R UW receptacle to flying lead cable, 1m
$100.00
Usually ships in 3-5 days
NexSens UW Receptacle to Flying Lead Cables UW-FL10R UW receptacle to flying lead cable, 10m
$188.00
Usually ships in 3-5 days
NexSens UW Receptacle to Flying Lead Cables UW-FL20R UW receptacle to flying lead cable, 20m
$287.00
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NexSens UW Receptacle to Flying Lead Cables UW-FL30R UW receptacle to flying lead cable, 30m
$385.00
Usually ships in 3-5 days
NexSens RS-485 to RS-232 Adapter RS485-RS232 RS-485 to RS-232 adapter
$129.00
Usually ships in 3-5 days

Questions & Answers

| Ask a Question
What is the response time of the thermistors?
The T90 response time is approximately 60 seconds.
What is depth rating of the sensor and connector?
The depth rating of the T-Node FR sensor and connector is 200 ft.
What is the maximum length I can have?
4000 ft or 250 nodes (sensors) is the maximum length of a T-Node FR thermistor chain. Please note that the maximum depth of the sensors is 200 ft.
How often should I calibrate my T-Node FR?
Although T-Node FR sensors are capable of holding the initial factory calibration indefinitely, NexSens recommends that temperature strings be sent in for a factory recalibration every three years to ensure maximum sensor performance.

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