JFE Advantech oceanographic instrumentation and sensors

Oceanographic profilers, optical dissolved oxygen sensors, and multiparameter water quality stations from JFE Advantech provide precise measurements across deep-sea research and coastal environmental monitoring programs.

RINKO Profiler CTD systems and ASTD deep-sea instruments

JFE Advantech RINKO Profiler and ASTD-3XTU self-recording CTD systems integrate fast-response optical dissolved oxygen sensors with an 0.4 s response time. Built-in solid memory eliminates data cables during vertical deployments rated to 3000 m depth across harsh marine environments.

Integrated optical DO sensor achieving fast 0.4 s response in sea water profiling
Deep-sea ASTD-3XTU rating supporting hydrostatic pressures down to 3000 meters
Autonomous high-capacity flash storage for salinity, temperature, and turbidity
Supply of underwater wet-mate connectors, mooring harnesses, and zinc anodes

AAQ-RINKO multiparameter ocean water quality profilers

Multiparameter water quality profilers in the AAQ-RINKO series measure electrical conductivity, water temperature, depth, turbidity, chlorophyll, pH, and dissolved oxygen simultaneously. Rapid sensor response permits vertical profiling speeds of 0.5 m/s without stopping at depth horizons.

Simultaneous acquisition of hydrological and chemical parameters in ocean columns
Vertical profiling velocity of 0.5 m/s significantly reduces vessel station time
Fast phosphorescent optical dissolved oxygen channel with 0.4 s time constant
Selection of replacement pH and ORP electrode pairs, optical foils, and cell caps

RINKO W autonomous optical DO loggers with mechanical wiper

Autonomous dissolved oxygen loggers in the RINKO W series are engineered for long-term continuous mooring in coastal waters and estuaries. An integrated mechanical wiper periodically cleans the optical window, preserving sensing foil clarity against bio-fouling throughout moorings.

Integrated mechanical wiper mechanism eliminates bio-fouling on the optical foil
Optical phosphorescence principle consumes no oxygen and requires zero water flow
Internal battery capacity and high-density memory enable annual continuous logging
Supply of replacement wiper wiper blades, motor shaft seals, and enclosure O-rings

RINKO-FT optical DO sensors models ARO-FT and AROD-FT

Specialized oxygen sensors in the RINKO-FT family, including models ARO-FT and AROD-FT, are designed for integration onto oceanic Argo floats and CTD arrays. In 2018, an Aro-FT unit was installed at Rimouski Station by Fisheries and Oceans Canada, demonstrating robust foil stability.

Documented installation and operation of ARO-FT sensors on marine Argo platforms
Balanced compromise between high-speed dynamic response and optical foil endurance
Compact titanium housing with digital output for easy profiling system integration
Replacement optical sensing foils, calibration coefficients, and sealing packages

ARO-PR portable optical DO meters and laboratory probes

Handheld optical dissolved oxygen meters in the ARO-PR series were developed with JAMSTEC for rapid field checking and laboratory analyses. The probe achieves a 99% response within 7 seconds upon insertion into standard BOD bottles without requiring stirring or consuming dissolved oxygen.

Rapid measuring response reaching 99% of final value in less than 7 seconds
Factory calibration traceable to Japanese NMIJ national gas reference standards
Direct insertion into standard BOD bottles without mechanical magnetic stirring
Supply of replacement probe tip sleeves, communication leads, and calibration kits

DEFI2 compact oceanographic data loggers and EPSA loggers

Compact autonomous data loggers in the DEFI2 and EPSA families track electrical conductivity, temperature, pressure, and turbidity. DEFI2 units operate continuously up to 573 days on a 1-minute interval, while EPSA-Turbi loggers handle extreme turbidities up to 100000 ppm with wipers.

Autonomous recording lifespan up to 573 days at 1-minute logging intervals
Seven-electrode conductivity cell in DEFI2-CT preventing external proximity errors
Wide-range dual turbidity measurement in EPSA-Turbi reaching up to 100000 ppm
Selection of optical USB interfaces, battery caps, and replacement wiper assemblies

RINKO optical sensing principle and fast dissolved oxygen response

JFE Advantech oceanographic instrumentation utilizes proprietary RINKO optical sensing technology governed by the dynamic quenching of phosphorescence within an immobilized dye layer.

Pulsed blue LED excitation and high-speed photodiode lifetime decay detection deliver remarkable analytical temporal resolution. The optical sensor consumes no dissolved oxygen during analysis, eliminating flow-dependency errors and dispensing with auxiliary mechanical stirring assemblies.

Engineering design of RINKO Profiler and ASTD deep-sea CTD packages

Self-recording profilers in the RINKO Profiler and ASTD-3XTU series integrate electrical conductivity, water temperature, depth, turbidity, and dissolved oxygen channels inside a pressure-resistant titanium housing.

The deep-sea ASTD-3XTU configuration withstands hydrostatic pressures down to 3000 m. Rapid sensor response of 0.4 s allows vertical profiling speeds of 0.5 m/s without smearing steep thermoclines and haloclines.

Mechanical wiper bio-fouling protection on RINKO W and EPSA loggers

During long-term moored deployments across coastal waters and estuaries, bio-fouling constitutes the foremost threat to optical analytical integrity. RINKO W data loggers and EPSA systems address this with an automated mechanical wiper that sweeps the sensing foil before each measurement sequence.

This mechanical wiper action maintains optical clarity throughout extended deployments without chemical biocides.

Calibration methodologies and Japanese NMIJ traceable gas standards

Calibration of JFE Advantech optical dissolved oxygen sensors follows a rigorous two-point protocol controlling baseline zero and saturated air points.

Zero dissolved oxygen is established with fresh sodium sulfite Na2SO3 reagent or pure nitrogen gas sparging, while saturation is set in a temperature-controlled air-bubbled water vessel. Factory sensor response coefficients are traceable to Japanese NMIJ national gas standards.

Integration of ARO-FT sensors into Argo floats and autonomous gliders

The RINKO-FT family, including models ARO-FT and AROD-FT, is tailored specifically for integration aboard robotic oceanic Argo floats, gliders, and mooring rosettes. The sensor communicates through digital serial protocols with negligible standby energy draw from onboard power cells.

Operational deployment of Aro-FT at Rimouski Station documented sustained foil measurement stability through repetitive oceanic diving cycles.

Comprehensive water quality profiling with AAQ-RINKO instrumentation

Multiparameter AAQ-RINKO profiling sondes deliver rapid water quality assessment across marine ecosystems, lakes, and reservoirs. The instrument measures electrical conductivity, water temperature, depth, pH, ORP, turbidity, chlorophyll-a fluorescence, and dissolved oxygen simultaneously.

Real-time cable telemetry or standalone memory acquisition streamlines oceanographic survey operations.

JFE Advantech and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of JFE Advantech and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.