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centi-TD温/深记录标记

DST centi-TD temperature depth recorder

Data Storage Tag centi - Temperature and Depth

Overview

Key features

Suitable for monitoring behavior of fishing gear, tidal waves, fish tagging and geothermal well logging

Various depth calibration ranges available, up to 3000 m

Long battery life, typically 9 years

Option for a start/stop recording at pre-defined depth level for saving on memory

Miniature data logger, size 46 mm x 15 mm

Description

The DST centi-TD is a miniature temperature and depth recorder. Recorded data is stored in the logger‘s internal memory with a time stamp for each measurement.

The DST centi-TD is supported by the SeaStar software and the Communication Box which serves as an interface between the logger and a PC. Communication between the logger and the Communication Box is wireless when sitting in the box.

In SeaStar the user sets the start time, start date and sampling interval before starting the recorder. Fastest possible sampling interval is 0.1 second. Up to seven different intervals can be set for the same measurement sequence. This is especially useful when more frequent measurements are needed at a certain time period. With default programming temperature and depth are recorded as pairs. Optionally, the two parameters can be set separately as primary and secondary parameters with different sampling frequency. That way memory partitioning can be customized according to individual preferences.

After recovering the DST recorded data is uploaded to SeaStar where results are displayed both in graphic and tabular form. After retrieving the data, the DST can be re-programmed and reused as long as the battery lasts.

A set of Communication Box and SeaStar software needs to be purchased with the first order.


DST centi-TD can be used as a stand-alone logger for recording depth and temperature in ocean and freshwater environments.   The DST can be fastened to fishing gear, deployment lines, cables, moorings or other underwater equipment, collecting valuable data. The logger is also used for monitoring temperature and depth in geothermal boreholes. The shape of DST-centi TD is designed for tagging fish and marine animals, externally or internally with implantation providing information on fish behavior and migration. When used in in tagging projects the tags are marked with a pre-defined text for recapture purposes.

Examples of studies suitable for DST centi-TD:

Fish and marine animal tagging

Fisheries research

Geothermal well logging

Oceanography

Marine biology

Hydrology

Ecosystems research

Geology

Technical Specifications

Sensors

Temperature and pressure (depth)

Size (diameter x length)

15mm x 46mm

Housing material

Alumina (Ceramic)

Weight (in air/in water)

in air: 19g
in water: 12g

Memory type

Non-volatile EEPROM

Memory capacity

174,000 measurements in total*
Optional memory extension:
524,068 measurements in total*

Memory capacity bytes

261,819 bytes / temperature 1.5 bytes, pressure 1.5 bytes

Memory extension option

524,068 measurements in total
786,099 bytes (EEPROM memory)

Memory management

- Custom programming
- Primary and secondary parameter

Data resolution

12 bits

Temperature resolution

0.032°C (0.058°F)

Temperature accuracy

+/-0.1°C (0.18°F)

Temperature range

-2°C to +40°C (28°F to 104°F)

Temperature response time

Time constant (63%) reached in 20 sec.

Standard depth ranges

0.1m-50m
0.1m-100m
1m-270m
5m-800m
5m-1500m
10m-3000m

Depth resolution

0.03% of selected range

Depth accuracy

+/- 0.6% of selected range

Depth response time

Immediate

Data retention

25 years

Clock

Real time clock
Accuracy +/-1 min/month

Sampling interval

User programmable. Fastest possible interval is 0.1 second

Number of different sampling intervals

Single interval throughout measuring period.
Or multiple intervals, up to seven.

Communications

Communication Box, RS-232C 9 pin serial and USB

Attachment hole

0.9 mm (in diameter)

Battery life

9 years**

* Total memory is divided between the two sensors.
** For sampling interval of 10 minutes; temperature and pressure recorded simultaneously.
Specifications may change without notice.


http://www.star-oddi.com/products/4/temperature-depth-recorder/default.aspx

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