Products
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CONTROS HydroFIA® TA
TA – ANALYSER FOR TOTAL ALKALINITY IN SEAWATER
Total alkalinity is an important sum parameter for many scientific fields of application including ocean acidification and carbonate chemistry research, monitoring of biogeochemical processes, aqua culture / fish farming as well as pore water analysis.
OPERATING PRINCIPLE
A defined amount of seawater is acidified by injection of a fixed amount of hydrochloric acid (HCl).
After acidification the generated CO₂ in the sample is removed by means of a membrane based degassing unit resulting in a so-called open-cell titration. The subsequent pH determination is carried out by means of an indicator dye (Bromocresol green) and VIS absorption spectrometry.
Together with salinity and temperature, the resulting pH is directly used for the calculation of total alkalinity.FEATURES
- Measurement cycles of less than 10 min
- Robust pH determination using absorption spectrometry
- Single-point titration
- Low sample consumption (<50 ml)
- Low reagent consumption (100 μL)
- User-friendly “Plug and Play” reagent cartridges
- Minimized biofouling effects due to acidification of the sample
- Autonomous long-term installations
OPTIONS
- Integration into automated measuring systems on VOS
- Cross-flow filters for high turbidity / sediment loaded waters
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CONTROS HydroFIA pH
pH – ANALYZER FOR THE PH VALUE IN WATER
OPERATING PRINCIPLE
Basis for the determination is the change of the colour of the indicator m-Cresol purple in dependence of the sample pH value. For each measurement, a small volume of indicator dye is injected into the sample stream of which the pH value is then determined by means of VIS absorption spectrometry.
BENEFITS
Measuring the pH value using m-Cresol purple is an absolute measurement method. Combined with the technical implementation, this analyser is calibration-free and therefore suitable for long-term applications. Furthermore, the analyser can be used for monitoring of e.g. short-term biogeochemical processes.
The low reagent consumption makes long deployment times possible with only minimal maintenance requirements. Once the analyser runs out of reagents, the cartridges can be easily exchanged due to their user-friendly design. In addition, the low sample consumption enables the pH determination from small sample volumes.FEATURES
- High accuracy
- Drift free
- Measurement cycles of approx. 2 min
- Low sample consumption
- Low reagent consumption
- User-friendly reagent cartridges
- One device for single measurements to autonomous long-term installations
- Second inlet for regular standard measurements
- Integrated acid flush for regular cleaning during operation
OPTIONS
- Integration into automated measuring systems on VOS
- Cross-flow filters for high turbidity / sediment loaded waters
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Mesocosm
Design and construction of complex mesocosm systems
Mesocosms are partially closed experimental outdoor systems to be used for simulation of biological, chemical and physical processes. Mesocosms provide the opportunity to fill the methodological gap between laboratory experiments and field observations.
They are an important part in climate research since they can help to simulate different future climate scenarios experimentally. With the here developed system it is possible to generate different water levels, currents and tides, to vary the temperatures and to control the pH value by adding CO2.Sensors continuously monitor parameters like temperature, salinity, pCO2, pH, dissolved oxygen, turbidity and chlorophyll a.
The pools are filled with natural sea water and may accommodate various kinds of flora and fauna (algae, shells, macro plankton, …). The influence of changing environmental conditions on these species may provide information concerning the impact of climate change.Advantages
⦁ reproduceable natural environmental conditions
⦁ full control and supervision of mesocosm experiments
⦁ free adjustable conditions in terms of temperature, pH, currents, and tides
⦁ real-time continuous information about experiment’s condition parameters
⦁ data transmission via satellite, GPRS, UMTS or WiFi/LANOptions and accessories
⦁ options and settings are individually discussed to fit user’s demands
DOWNLOAD 4H-JENA MESOCOSM DATA SHEET
Frankstar Team will provide 7 x 24 hours service for 4h-JENA all line equipment, including but not limited Ferry box, Mesocosm, CNTROS Series sensors and so on. Welcome to contact us for further discussion.
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CONTROS HydroC CH₄ FT
The CONTROS HydroC CH₄ FT is a unique surface methane partial pressure sensor designed for flow through applications like pumped stationary systems (e.g. monitoring stations) or ship based underway systems (e.g. FerryBox). Fields of application include: Climate studies, methane hydrate studies, limnology, fresh water control, aquaculture / fish farming.
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CONTROS HydroC® CH₄
CH₄ – METHANE SENSOR FOR UNDERWATER APPLICATIONS
The CONTROS HydroC® CH₄ sensor is a unique subsea / underwater methane sensor for in-situ and online measurements of CH₄ partial pressure (p CH₄). The versatile CONTROS HydroC® CH₄ provides the perfect solution for the monitoring of background CH₄ concentrations and for longterm deployments.
OPERATING PRINCIPLE
Dissolved CH₄ molecules diffuse through a custom made thin film membrane into the internal gas circuit leading to a detector chamber, where the CH₄ concentration is determined by means of Tunable Diode Laser Absorption Spectroscopy (TDLAS). Concentration dependent laser light intensities are converted into the output signal from calibration coefficients stored in firmware and data from additional sensors within the gas circuit.
HIGH ACCURACY AND STABILITY
Due to their narrow line-width, the Tunable Diode Laser Detectors have a high accuracy and an ideal selectivity for methane molecules. In addition, they feature a large dynamic range covering background partial pressures up to 40 matm. All detectors are subject to an individual calibration and an in depth quality check in our QA lab before they are integrated into our sensors. The quality of the calibration is then verified individually in calibration tanks. The sensor is stable over a long time as the detector tunes the laser to CH₄ absorbing and non-absorbing wavelengths for each measurement thus compensating for potential drift influences.
ACCESSORIES
A wide range of available accessories ensures that each of the CONTROS HydroC® CH₄ sensors can be adapted to meet customers’ requirements. Underwater pumps and different flow head designs are the most popular options, which ensure fast response times. An antifouling head is used under conditions with significant biofouling pressure. The internal data logger can be used in conjunction with the CONTROS HydroC®’s flexible power management features and the CONTROS HydroB® battery packs to conduct unattended long-term deployments.
FEATURES
- High accuracy and low detection limit of background concentration
- Large measuring range
- Optimal long-term stability
- Ideal methane selectivity
- Non-consuming CH₄ measurement
- Very robust, can be used in water depths up to 3000 meters
- User-friendly ‘Plug & Play’ principle; all required cables, connectors and software are included
OPTIONS
- Analogue output: 0 V – 5 V
- Internal data logger
- External battery packs
- ROV and AUV installation packages
- Profiling and mooring frames
- External pump (SBE-5T or SBE-5M)
DOWNLOAD Product sheet
DOWNLOAD Application note
Frankstar Team will provide 7 x 24 hours service about 4h-JENA all line equipment, including but not limited Ferry box, Mesocosm, CNTROS Series sensors and so on.
Welcome to contact us for further discussion. -
CONTROS HydroC® CO₂
CO₂ – CARBON DIOXIDE SENSOR FOR UNDERWATER APPLICATIONS
INDIVIDUAL ‘IN-SITU’ CALIBRATION
All sensors are individually calibrated in a water tank which simulates the deployment temperature. A sophisticated reference detector is used to verify the p CO₂ concentrations in the calibration tank.
The reference sensor is recalibrated with secondary standards on a daily basis. This process ensures that the CONTROS HydroC® CO₂ sensors achieve unmatched short and long-term accuracy.OPERATING PRINCIPLE
Dissolved CO₂ molecules diffuse through a custom made thin film composite membrane into the internal gas circuit leading to a detector chamber, where the partial pressure of CO₂ is determined by means of IR absorption spectrometry. Concentration dependent IR light intensities are converted into the output signal from calibration coefficients stored in firmware and data from additional sensors within the gas circuit.
ACCESSORIES
A wide range of available accessories ensures that each of the CONTROS HydroC® CO₂ sensors can be adapted to meet customers’ requirements. The optional pumps with the different flow heads are the most popular options that ensure very fast response times. An anti-fouling head is used under conditions with significant biofouling pressure. The internal data logger can be used in conjunction with the HydroC’s flexible power management features and the CONTROS HydroB® battery packs to conduct unattended long-term deployments.
FEATURES
- High accuracy
- Very robust, depth rating up to 6000 m (profiling)
- Very fast response time
- User-friendly
- Versatile – easy integration into almost every oceanographic measurement system and platform
- Long-term deployment capability
- ‘Plug & Play’ principle; all required cables, connectors and software are included
OPTIONS
- Analogue output: 0 V – 5 V
- Internal data logger
- External battery packs
- ROV and AUV installation packages
- Profiling and mooring frames
- External pump (SBE-5T or SBE-5M)
- CO₂ flow through sensor for underway (FerryBox) and lab applications
DOWNLOAD Application note
Frankstar Team will provide 7 x 24 hours service about 4h-JENA all line equipment, including but not limited Ferry box, Mesocosm, CNTROS Series sensors and so on.
Welcome to contact us for further discussion. -
CONTROS HydroC® CO₂ FT
CO₂ FT – CARBON DIOXIDE SENSOR FOR FLOW-TROUGH APPLICATIONS
The CONTROS HydroC® CO₂ FT is a unique surface water carbon dioxide partial pressure sensor designed for underway (FerryBox) and lab applications. Fields of application include ocean acidification research, climate studies, air-sea gas exchange, limnology, fresh water control, aquaculture/fish farming, carbon capture and storage – monitoring, measurement and verification (CCS-MMV).
INDIVIDUAL ‘IN-SITU’ CALIBRATION
All sensors are individually calibrated using a water tank which simulates the deployment temperature. A proven reference flow through system is used to verify the CO₂ partial pressures in the calibration tank. High quality standard gases are used to calibrate the reference system before and after every sensor calibration. This process ensures that the CONTROS HydroC® CO₂ sensors achieve excellent short and long term accuracy.
OPERATING PRINCIPLE
Water is pumped through the flow head of the CONTROS HydroC® CO₂ FT sensor. Dissolved gases diffuse through a custom made thin film composite membrane into the internal gas circuit leading to a detector chamber, where the partial pressure of CO₂ is determined by means of IR absorption spectrometry. Concentration dependent IR light intensities are converted into the output signal from calibration coefficients stored in firmware and data from additional sensors within the gas circuit.
FEATURES
- High accuracy
- Fast response time
- User-friendly
- Long-term maintenance interval of 12 months
- Long-term deployment capability
- ‚Plug & Play‘ principle; all required cables, connectors and software are included
- The CONTROS HydroC® technology has a track record in peer-reviewed scientific publications
OPTIONS
- Range/Full-scale can be user-configured
- Data logger
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Pocket FerryBox
The -4H- PocktFerryBox is designed for high-precision measurements of multiple water parameters and constituents. The compact and user-customized design in a portable case opens new perspectives of monitoring tasks. The possibilities range from stationary monitoring to position-controlled operation onboard small boats. The compact size and weight facilitates this mobile system to be easily carried to the measuring area. The system is designed for autonomous environmental monitoring and is operable with either a power supply unit or a battery.
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FerryBox
4H- FerryBox: autonomous, low-maintenance measuring system
The -4H- FerryBox is an autonomous, low-maintenance measuring system, which is designed for the continuous operation onboard ships, on measurement platforms and at river banks. The -4H- FerryBox as a fixed installed system provides the ideal basis for extensive and continuous long-term monitoring while maintenance efforts are kept to a minimum. The integrated automatic cleaning system ensures a high data availability.
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HSI-Fairy “Linghui” UAV-Mounted Hyperspectral Imaging System
HSI-Fairy “Linghui” UAV-mounted hyperspectral imaging system is a push-broom airborne hyperspectral imaging system developed based on a small rotor UAV. The system collects hyperspectral information of ground targets and synthesizes high-resolution spectral images through the UAV platform cruising in the air.
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UAV nearshore environment comprehensive sampling system
The UAV nearshore environmental comprehensive sampling system adopts the “UAV +” mode, which combines software and hardware. The hardware part uses independently controllable drones, descenders, samplers and other equipment, and the software part has fixed-point hovering, fixed-point sampling and other functions. It can solve the problems of low sampling efficiency and personal safety caused by the limitations of survey terrain, tide time, and physical strength of investigators in nearshore or coastal environmental survey tasks. This solution is not limited by factors such as terrain, and can accurately and quickly reach the target station to carry out surface sediment and seawater sampling, thereby greatly improving work efficiency and work quality, and can bring great convenience to intertidal zone surveys.
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Frankstar RNSS/ GNSS Wave Sensor
HIGH PRECISION WAVE DIRECTION WAVE MEASUREMENT SENSOR
RNSS wave sensor is a new generation of wave sensor independently developed by Frankstar Technology Group PTE LTD. It is embedded with a low-power wave data processing module, takes Radio Navigation Satellite System(RNSS) technology to measure the speed of objects, and obtains wave height, wave period, wave direction and other data through our own patented algorithm to achieve accurate measurement of waves.
