Registratore di dati di temperatura DST CTD

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Product Details Smallest CTD on the market: The DST CTD Data Storage Tag measures and records salinity, temperature, and depth. Size: 50 mm in length x 15 mm in diameter. It is a self-contained CTD data logger, user programmable to log data at specified intervals. Data is displayed in graph and table format with a time stamp for each measurement. Application: Designed as a fish archival tag for migration studies of fish and marine animals. Enables scientists to gain valuable information on migration routes and behavioral patterns over long periods. The tag is externally attached to the animal due to the salinity sensor, which consists of two conductivity cells. Wide salinity range: Captures conductivity from 2 to 68 mS/cm. Low conductivity range (0.1–6 mS/cm) is also available, ideal for brackish water. Depth sensors: Can be calibrated to 2,400 meters, with tolerance up to 2,500 meters. Available ranges: 150m, 500m, 1200m, 2400m. Tag holder kit: Available for easier and safer attachment to fish. Increases safety for the animal. Custom text on housing: Tags can have customized text for recapture purposes, important for commercially fished species. Key Features Smallest CTD data storage tag on the market Long battery life - up to 5 years Depth sensors for shallow to deep ocean Tag holder kit for external fish tagging User defined text on the housing Conductivity Sensor Conductivity sensor electrodes are located inside a small cup at the end of the logger housing. Pressure sensor for depth measurements is located at the membrane; temperature sensor is close to the membrane. Available conductivity ranges: 2-68 mS/cm and 0.1-6 mS/cm. Usage Supported by SeaStar software and a Communication Box (required for first order). Logger is programmed via Communication Box connected to a PC. User sets start time, date, and sampling interval. Two sampling modes: single interval or up to seven different intervals for flexible measurement scheduling. Software calculates memory and battery life based on settings. After recapture, data is uploaded to the software and displayed graphically and in tables. Data can be exported. Tag can be reused as long as batteries last; battery life estimation is reported upon connection. Accessories Communication Box: Interface between DST and PC for starting logger and retrieving data. SeaStar software: For Windows, displays data graphically and in tables, exportable to other programs. Plate Holder Kit: For external attachment, includes wire fasteners, plastic plates, and silicone pads for comfort and safety. Capsule Holder Kit: Plastic capsule with holes for water flow, includes wire harness, plastic plate, and silicone pads. Available for all logger sizes. Floating Device: For data storage tags, available in different sizes for internal or external tagging. Specifications SensorsConductivity (salinity), temperature, pressure Size (Diameter x Length)15 mm x 50 mm Maximum Diameter18 mm at the closure end Housing MaterialAlumina (Ceramic) Weight (in Air/in Water)21g/13g Data Resolution12 bits Conductivity RangesWide range: 2-68 mS/cmLow range: 0.1-6 mS/cm Conductivity ResolutionRange 2-68 mS/cm: 0.03 mS/cm0.1-6 mS/cm: 0.003 mS/cm Conductivity Accuracy2-68 mS/cm: +/-1.5 mS/cm0.1-6 mS/cm: +/-0.15 mS/cm Salinity RangeDepends on conductivity and temp. range (consult with Star-Oddi) Salinity Resolution2-68 mS/cm: 0.02 PSU0.1-6 mS/cm: 0.002 PSU Salinity Accuracy2-68 mS/cm: +/-1 PSU0.1-6 mS/cm: +/-0.1 PSU Temperature Range-1°C to +40°C (30°F to 104°F) Temperature Resolution0.032°C (0.058°F) Temperature Accuracy+/-0.1°C (0.18°F) Temperature Response TimeTime constant (63%) reached in 20 sec. Standard Depth Ranges150m, 500m, 1200m, 2400m Depth Resolution0.03% of selected range Depth Accuracy+/-1% of selected range Depth Response TimeImmediate Memory TypeNon-volatile EEPROM Memory Capacity87,217 measurements per sensor Memory ManagementCustom programming Measurement IntervalUser specified in second(s), minute(s), or hour(s) Minimum Measurement Interval1 second Multiple Intervals OptionUp to 7 different intervals Data Retention25 years ClockReal time clock. Accuracy +/-1 min/month. CommunicationsCommunication Box, wireless transmission when DST sits in the box. Connection to PC: USB cable. Attachment Hole0.9 mm (diameter) Battery Life5 years (for sampling interval of 10 minutes) Replaceable BatteryNo *Based on conductivity full scale accuracy at 24°C.** For sampling interval of 10 minutes.Warranty: 12 months.Specifications may change without notice.