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Depth Sensors & Altimeters
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Impact Subsea Underwater Altimeter & Echo Sounder
The ISA500 underwater Altimeter & Echo Sounder provides exceptionally long range measurement capability – in excess of 120 meters. In addition to providing exceptionally long range capability, the unit has a 1mm accuracy – allowing precision underwater distance measurements to be made.
Altitude & Echo Sounding
The ISA500 utilises sonar technology to derive distance measurement.
Operating by default at 500kHz, the unit utilises a broadband composite transducer and electronics together with an advanced digital acoustic engine. The combination of these enable the unit to achieve long range and high accuracy.
The unit can be operated at any frequency from 400 to 600kHz – ideal for different applications or operating in conjunction with other acoustic equipment.
- 120+ Meter Range
- Millimeter Accuracy
- Software to View, Log & Configure
- Digital & Analogue Interfaces
- Robust & Compact Housing
- Low Power Consumption
- Emulate Any Device
- Range Of Variants
- Multi Echo Output
Kongsberg MS1007 Altimeter
The 1007 is a precision sonar / hydro acoustic altimeter specifically designed for applications where long range, high accuracy is required.
All altimeter models can operate as a stand-alone altimeter, or can be directly connected to the MS 1000 scanning sonar processor. The 1007 model series have been designed to offer the same high performance as our 1071 – series sonar heads.
Paroscientific Digiquartz® Depth Sensors
Digiquartz® Depth Sensors provide the ultimate precision in water level measurements. Typical application accuracy of 0.01% is achieved even under difficult environmental conditions. Desirable characteristics include excellent long-term stability, 1 x 10–8 resolution, low power consumption, and high reliability.
- 0.01% Accuracy
- 1 x 10 –8 Resolution
- Unique Anti-Fouling Port
- Low Power Consumption
- High Stability and Reliability
- Fully Calibrated and Characterized
- ISO 9001 Quality System – NIST Traceable
- Frequency Outputs or Dual RS-232 and RS-485 Interfaces
The remarkable performance of these depth sensors is achieved through the use of a precision quartz crystal resonator whose frequency of oscillation varies with pressure-induced stress. A quartz crystal temperature signal is provided to thermally compensate the calculated pressure and achieve high accuracy over a broad range of temperatures. The depth sensors include waterproof housings with integral shock protection.
High accuracy, resolution, and stability make Digiquartz®Depth Sensors ideal for applications such as Tsunami detection, wave and tide gauges, platform levelling, underwater pipe laying, and as depth sensors in ROVs and AUVs.
All Depth Sensor ranges are available with either frequency outputs or integral intelligent electronics with bi-directional digital communications.
Dual Rs-232 and RS-485 interfaces allows complete remote configuration and control of all operating parameters, including resolution, sample rate, and choice of engineering units, integration time, and sampling requests. Commands include: Single sample and send, synchronized sample and hold, continuous sample and send, and special burst sampling modes.
New and enhanced features include support for both serial loop and multi-drop networking, selectable baud rates up to 115,200 baud, synchronization of measurements with time based integration, 2 or 4 wire RS-485 transmission distances greater than 1 kilometre, improved high-speed continuous pressure measurements, a power management “sleep” mode, data formatting features, and unit identification commands.
RTS CUBE SDM
The RTS CUBE SDM is a self-contained monitoring solution for subsea structures. It is used during the deployment and installation phase but can also be utilized for long-term monitoring to ensure structure stability and position.
In addition to monitoring heading, deflection and suction can pressure, the system can also provide the user with live video and a number of optional sensors. Based on a proven track record the RTS CUBE SDM is the second generation of SDM systems and offers unparalleled performance and control during critical operations.
- Real-time comprehensive structure monitoring
- Software for presentation, control and calibration
- Logging and time-stamping of all sensor data
- Wireless system testing and logging
- Real-time tide compensation (RTC)
- Robust and compact construction
- ROV connection
- Sensor choice flexibility
- Data output for third party software
- Simple setup
- Engineered based on proven track record
Seabird SBE 19plus Profiler CTD
The SBE 19plus V2 (Version 2) SeaCAT Profiler measures conductivity, temperature, and pressure (depth) and provides high accuracy and resolution, reliability, and ease-of-use for a wide range of research, monitoring, and engineering applications. The pump-controlled, TC-ducted flow configuration minimizes salinity spiking caused by ship heave and allows for slow descent rates without slowing sensor responses, improving dynamic accuracy and resolving small scale structure in the water column.
- Conductivity, Temperature, Pressure, and up to seven auxiliary sensors.
- User-programmable mode: profiling at 4 Hz, or moored sampling at user-programmable intervals.
- RS-232 serial interface, internal memory, and internal batteries (can be powered externally).
- Pump-controlled, T-C ducted flow to minimize salinity spiking.
- Depths to 600 or 7000 meters.
- Adds to Sea-Bird’s SeaCAT family, field-proven since 1987.
- Five-year limited warranty.
Compared to the previous 19plus, the V2 incorporates an electronics upgrade and additional features, with six differentially amplified A/D input channels, one RS-232 data input channel, and 64 MB FLASH memory. An optional Digiquartz® pressure sensor provides highest-accuracy pressure measurement. Data can be output in XML as well as ASCII and HEX formats. Firmware upgrades can be downloaded through the communications port, without opening the instrument.
The 19plus V2 samples continuously at up to 4 scans per second (4 Hz) (2 Hz with Digiquartz®), is battery-powered and self-recording, and is commonly used in the field without a computer, recording up to 1000 individual profiles. Data can be uploaded and processed later, as well as transmitted to a PC in real time for acquisition and display using Seasoft software provided (cable length dependent on number of auxiliary sensors, sampling and baud rate, and cable properties). The 19plus V2 can supply power to 7 external sensors and log their outputs with each CTD scan. Nine D-size alkaline batteries provide up to 60 hours of continuous operation when logging C, T, and P at 4 Hz.
The 19plus V2 is easily integrated with an SBE 32 Carousel Water Sampler and is ideal for integration with the SBE 55 ECO Water Sampler. Both real-time and autonomous auto-fire operations are possible with any Sea-Bird CTD / Water Sampler system.
In moored mode, the 19plus V2 records time series measurements at user-programmable intervals (10 seconds to 4 hours). Moored mode is easily configured with setup commands and by removing the profiling T-C Duct and installing optional anti-foulant devices. (If profiling not needed, the 16plus V2 SeaCAT Recorder offers greater moored-mode flexibility.)
CONFIGURATION, OPTIONS, AND ACCESSORIES
A standard SBE 19plus V2 is supplied with plastic housing for depths to 600 meters, strain-gauge pressure sensor, 64 Mbyte FLASH RAM memory, alkaline batteries, glass-reinforced epoxy bulkhead connectors, SBE 5M miniature pump with plastic housing, and T-C Duct.
Options and accessories include:
- Titanium housing for depths to 7000 meters, and SBE 5M miniature pump with titanium housing for 7000 meters
- Wet-pluggable MCBH series connectors
- SBE 5P (plastic) or 5T (titanium) pump in place of SBE 5M for use with dissolved oxygen and/or other pumped sensors
- Digiquartz® pressure sensor
- Stainless steel protection cage (For typical cage, see drawing 22009 for 19plus V2 with strain-gauge pressure sensor or 22010 for 19plus V2 with Digiquartz pressure sensor.
- Auxiliary sensors for Dissolved Oxygen (SBE 43 DO Sensor), pH* (SBE 18 pH Sensor or SBE 27 pH/ORP Sensor), fluorescence, radiance (PAR), light transmission, and optical backscatter (turbidity)
- Plastic shipping case
- Nickel Metal Hydride (NiMH) batteries and charger
- Moored mode conversion kit with anti-foulant device fittings
- Load-bearing underwater cables for hand-hauled, real-time profiling
- SBE 36 CTD Deck Unit and Power/Data Interface Module (PDIM) for real-time operation on single-core armored cable up to 10,000 meters
- * pH sensor for integration in Profiling mode only; not applicable to Moored mode
SOFTWARE
The SBE 19plus V2 is supplied with a powerful Windows 2000/XP software package, Seasoft©V2, which includes programs for communication and data retrieval, real-time data acquisition and display, and data processing (filtering, aligning, averaging) and plotting.
Tritech PA200 and PA500
Tritech PA200 and PA500 Digital Precision Altimeters are based on the same high performance electronics found in the well-proven, industry standard Tritech SeaKing sonar and profiler systems.
- Analogue only outputs
- Digital only output
- Simultaneous analogue and digital outputs
- Noise immunity
- Altimeter can be field reconfigured for different applications
- Altimeter with free-running outputs
- Altimeter with interrogated outputs
- 4000 metre standard depth rating
The range of compact Tritech PA200 and PA500 Digital Precision Altimeters provide exceptionally accurate height off seabed and subsea distance measurements. The 500kHz PA500 Altimeter is supplied with Tritech’s 700 series bathy.
Full digital synthesis of transmit and receive frequencies, together with greatly improved input dynamic range, offer unsurpassed levels of performance from a small, compact altimeter unit.
The altimeters may be supplied with simultaneous analogue and digital outputs allowing the altimeter to be interfaced to a wide range of PC devices, data loggers, ROV telemetry systems and multiplexers.
OEM configurations for the altimeter, including low magnetic signature, rigid polyurethane housings or right-angled altimeter heads are available on request.
Control of the altimeters may be performed in many ways including:
- Altimeter direct from a PC running DOS
- Altimeter direct from a PC running Windows
- Altimeter direct from a suitable control system
- Altimeter as part of a multidrop network
Tritech SeaKing 700 Series
The SeaKing Bathymetric system comprises up to four high resolution sensors – a depth sensor, conductivity probe, temperature probe and the PA500 altimeter.
- Conductivity and temperature module eliminates the need to take daily “dips”
- Real time, on line monitoring of seawater conductivity and temperature
- 700m to 4000m depth ratings available
- Correct velocity of sound (vos) may be applied in real time to devices such as the SeaKing profiling sonar and the altimeter
- Corrected temperature and salinity parameters can be passed to the Digiquartz depth sensor
- Surface barometric pressure sensor is standard in SeaKing Bathometer
Two standard configurations are available, either as a pressure only package (SeaKing 701) or as a pressure, conductivity and temperature package (SeaKing 704).
The sensors form an integrated package, however, the PA500 altimeter is on a cable and can be mounted separately on the ROV which allows positioning of the individual sensors away from areas of masking or disturbance such as vehicle structure or thruster wash.
With the SeaKing 704, full water column profiling is achieved by dynamically modifying a lookup table which contains all measured parameters versus depth. This table may be stored by the surveyors and re-loaded as required.For the SeaKing 704 full water column profiling is achieved by dynamically modifying a lookup table which contains all measured parameters versus depth. This table may be stored by the surveyors and re-loaded as required.
The SeaKing Bathymetric System operates as a stand-alone instrument, or a single subsea node on the SeaKing network and shares the same twisted pair wiring as the SeaKing Profiler or SeaKing Sonar. Vehicle integration is very simple since only a single pair of conductors are required on the ROV.
Tritech SeaNet SCU V5
The successful SCU V4 processor has been upgraded to provide the latest performance capabilities available from PC technology. The SeaNet SCU V5 provides a reliable, rugged and easy to install replacement for the SCU V4, it has been designed as a robust 19″ rack mount unit with floated shock mount sub assemblies for maximum reliability.
- Single & multiple sensor communication
- Rugged construction
- 19″ Rack mountable
- SVGA/XGA/SXGA & PAL/NTSC Output
- 4 x USB 2.0 ports
A high-speed 156kBits/sec communication system is used within the SeaNet SCU, allowing a full suite of Tritech sensors to be operated over a single twisted pair or, by utilising the Tritech MultiComm, over a RS232 / Fibre-Optic interface.
Each device connected to the SeaNet SCU runs, in real time, in its own onscreen window. The monitor display may be varied to show single or multiple windows and this can be altered at any time during normal operations. This multiple sensor capability provides obvious cost benefits as well as reducing the space requirement for consoles in the control room.
The SeaNet SCU is a multi-tasking control unit running under an embedded Microsoft Windows XP operating system installed on solid-state Flash disk. Fitted with a ‘LAN card’ the SeaNet SCU provides easy access to data storage and data transfer. The SeaNet SCU retains the use of the industry favourite Remote Access Terminal (RAT) a feature of the SCU V4. The RAT provides full control of the SeaNet SCU and its ergonomically designed layout ensures that all functions are well placed and easy to use. The built in mini-joystick on the RAT provides a useful tool for carrying out range and bearing measurements on sonar data. If preferred the RAT may be detached from the SeaNet SCU processor allowing it to be operated from a more desirable location.
Valeport MIDAS BathyPack Bathymetry Package
The BathyPack is one of Valeport’s premier MIDAS products, using state of the art sensors to generate precision Sound Velocity and Density profiles for highly accurate depth and height data.
The simple top-end PC software, BathyLog, also allows all profile data to be used to monitor and correct multiple miniIPS pressure sensors, giving you the complete picture with one integrated sensor suite.
Valeport miniIPS Intelligent Pressure Sensor
The miniIPS is a precision underwater pressure sensor; 0.01% accuracy, a titanium housing and a choice of pressure ranges make it a cost effective solution for offshore engineers, vehicle pilots, and other operators who require highly accurate depth information in real time.
The miniIPS is also compatible with Valeport’s MIDAS BathyPack and BathyLog software, allowing the depth data to be continually updated for Density variations in the water column.
Valeport VA500 Altimeter
The VA500 Altimeter delivers a new approach to the problem of underwater positioning. State of the art signal processing offers unrivalled range and performance from a 500kHz transducer.
Millimetre precision, 0.1m – 100m range, RS232/RS485/0-5V & 0-10V analogue outputs with a wide range power supply address the needs of the ROV, AUV and Hydrographic community in a compact, robust package.
The option of integrating a high accuracy pressure sensor (0.01%) as used in the MiniIPS offers an unbeatable package for your underwater positioning requirements.