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milli-TD温度/压力记录标记

DST milli-TD mini pressure (depth) and temperature logger

Data Storage Tag milli Temperature and Depth

Overview

Key features

  • Ideal for use in underwater environments and animal tagging for behavioral studies
  • Accurate depth measurements in a small logger, better than +/-0.6% full scale
  • Small dimensions of 39.4 mm x 13 mm
  • Memory up to 1,4 million measurements in total
  • Long battery life, typically 3 years
  • High temp version available with range 0-85°C

Description

The DST milli-TD is a mini pressure (depth) and temperature data logger.  Recorded data is stored in the logger‘s internal memory with a real time clock reference for each measurement.

The autonomous depth temperature recording device is supported by SeaStar and Mercury softwares 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 the logger sits in the box.

In the software, the user sets the start time, start date and sampling interval before starting the recorder. 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 pressure are recorded as pairs. Optionally, the sensors can be set 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 in the supporting software 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 (or Mercury) software needs to be purchased with the first order.

Star-Oddi offers protective logger housings for use as a stand-alone logger at fixed locations or in harsh environments.

For more information about accessories please click here.

Features on Request

Memory extension
All DST milli types are available with an extended memory capacity of 1.4 million measurements in total (DST milli-F, with FLASH memory). Total memory is dividided between the two sensors temperature and depth (pressure).

Temperature calibration outside standard range
Temperature calibration outside standard range is available upon request. A high temperature version is available with temperature calibration 0-85°C. Note that high temp usage reduces battery life.

Fast sampling
It is possible to have temperature and pressure logger with option for 0.1 sec. (10 Hz) fast sampling.



Examples of Application

DST milli-TD is designed as an archival tag for for fish and marine animal tagging, providing information on the animals behavior. The DST milli-TD is widely used as a stand-alone logger for sampling underwater. The DST can be fastened to fishing gear or other underwater equipment, collecting valuable data. 

The DST milli-TD is suitable for use within:

  • Fish and marine animal tagging (internally or externally)
  • Fishing gear studies
  • Oceanography
  • Marine biology
  • Geothermal wells or boreholes
  • Agricultural and cattle research projects
  • Temperature and pressure measurement in liquids, vials etc.
  • Aquaculture studies
  • Various industry use where temperature and pressure recording is required

You can read more about research studies and other applications of the DSTs here.



Technical Specifications

Sensors Temperature and pressure (depth)
Size (diameter x length) 13mm x 39.4mm
Housing material Alumina (Ceramic)
Weight (in air/in water) in air: 9.2g
in water: 5g
Memory type Non-volatile EEPROM
Optional 2MB FLASH memory (DST milli-F)
Memory capacity Up to 1,4 million data points
Choose between:
87,168 measurements in total (EEPROM)*
1,398,100 measurements in total (2MB FLASH)*
Memory capacity bytes 130,750 bytes (EEPROM memory)
2,096,640 bytes (FLASH memory)
Temperature 1.5 bytes, Pressure 1.5 bytes
Memory management - Custom programming
- Primary and secondary parameter
Data resolution 12 bits
Temperature resolution 0.032°C (0.058°F)
Temperature accuracy Standard range: +/-0.1°C (0.18°F)
High temp range: +/-0.2°C (0.36°F)
Temperature range Standard range: -1°C to +40°C (30°F to 104°F)
High temp range: 0 to 85°C (32°F to 185°F)
Temperature response time Time constant (63%) reached in 12 sec.
Standard depth ranges 0.1m-50m
0.1m-100m
1m-250m
5m-500m
5m-800m
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:
-In second(s), minute(s) or hour(s)
-Option for 0.1 sec. fast sampling (burst mode)
Number of different sampling intervals Single interval throughout measuring period or multiple intervals (up to 7) where number of measurements is defined within each interval
Communications Communication Box, wirelss transmission when DST sits in the box. Connection: USB cable
Attachment hole 0.9 mm (in diameter)
Battery life Standard temp range: 3 years**
High temp range: 1.5 years**
* Total memory is divided between the two sensors.
** For sampling interval of 10 minutes.
Specifications may change without notice.
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