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TCM-1 Water Current Meter

The TCM-1 is a new current meter that is ideal for measuring water velocity from inland to the edge of the continental shelf. The simple design and lower cost of the TCM-1 make it feasible to measure current in many locations simultaneously.
Part Number: TCM-1
$1,818.00 ex GST
[$1,999.80 inc GST]

TCM-1 Current Meter

The TCM-1 is a new current meter that is ideal for measuring water velocity from inland to the edge of the continental shelf. The simple design and lower cost of the TCM-1 make it feasible to measure current in many locations simultaneously.

The core of the TCM-1 is the MAT-1 Data Logger.  The MAT-1 data logger was designed for NOAA and is ideally suited as the "brains" of a tilt current meter.

The TCM-1 is field configurable for either low or high current range my simply adding or removing a calibrated ballast. Housed rugged PVC, with no external sensors, the TCM-1 is easy to deploy and recover. The built-in data logger includes a USB communication interface, a microSD flash memory card, and a long-life lithium battery. 


Operation

The TCM-1 measures current using the drag-tilt principle. The logger is buoyant and is anchored to the bottom via a short flexible tether. Moving water tilts the logger in the direction of flow. The TCM-1 contains a 3-axis accelerometer and 3-axis magnetometer for measuring tilt and bearing. The resulting orientation data is converted to current by applying calibration coefficients.


Key Features & Benefits

  • Water velocity for a fraction of the cost of an acoustic meter
  • Tilt compensated compass for bearing measurements
  • Simple, rugged, low maintenance design
  • Seaweed snag-resistant
  • Change range in the field without software
  • Temperature sensor accurate to +/-0.1C
  • 4GB memory card eliminates memory concerns
  • Lithium battery allows continuous 4Hz sampling for more than 1 year
  • USB 2.0 with standard cable and drag and drop data file offload

Data

Windows® software is used to configure the TCM-1 for deployment and to process data and saved as text file (.csv).
 

 

Package Contents

 

  • MAT-1 Data Logger
  • 46 cm (18") current meter housing
  • Bronze "low-range" ballast washer and bolt
  • Lithium battery (installed in logger)
  • 4 GB microSD card (installed in data logger)
  • 1 m (3 ft) USB A to micro-B Cable
  • Spare O-ring (pre-lubricated)
  • 20 cm (8") lanyard

 


 

Support and FAQ's

 

Opens Manufactures Page

 

TCM-1 Current Meter

The TCM-1 is a new current meter that is ideal for measuring water velocity from inland to the edge of the continental shelf. The simple design and lower cost of the TCM-1 make it feasible to measure current in many locations simultaneously.

The core of the TCM-1 is the MAT-1 Data Logger.  The MAT-1 data logger was designed for NOAA and is ideally suited as the "brains" of a tilt current meter.

The TCM-1 is field configurable for either low or high current range my simply adding or removing a calibrated ballast. Housed rugged PVC, with no external sensors, the TCM-1 is easy to deploy and recover. The built-in data logger includes a USB communication interface, a microSD flash memory card, and a long-life lithium battery. 


Operation

The TCM-1 measures current using the drag-tilt principle. The logger is buoyant and is anchored to the bottom via a short flexible tether. Moving water tilts the logger in the direction of flow. The TCM-1 contains a 3-axis accelerometer and 3-axis magnetometer for measuring tilt and bearing. The resulting orientation data is converted to current by applying calibration coefficients.


Key Features & Benefits

  • Water velocity for a fraction of the cost of an acoustic meter
  • Tilt compensated compass for bearing measurements
  • Simple, rugged, low maintenance design
  • Seaweed snag-resistant
  • Change range in the field without software
  • Temperature sensor accurate to +/-0.1C
  • 4GB memory card eliminates memory concerns
  • Lithium battery allows continuous 4Hz sampling for more than 1 year
  • USB 2.0 with standard cable and drag and drop data file offload

Data

Windows® software is used to configure the TCM-1 for deployment and to process data and saved as text file (.csv).
 

 

Package Contents

 

  • MAT-1 Data Logger
  • 46 cm (18") current meter housing
  • Bronze "low-range" ballast washer and bolt
  • Lithium battery (installed in logger)
  • 4 GB microSD card (installed in data logger)
  • 1 m (3 ft) USB A to micro-B Cable
  • Spare O-ring (pre-lubricated)
  • 20 cm (8") lanyard

 


 

Support and FAQ's

 

Opens Manufactures Page

 

TCM-1 Current Meter Overview

This video is a quick look at the new TCM-1 current meter from Lowell Instruments. In this example the TCM-1 is deployed in a tidal stream at the outlet of a salt marsh. The depth is about 1 meter, the tide is fairly low, but continues to fall, and the current is about 50 centimeters per second or 1 knot. The meter is anchored to the bottom by a short flexible tether and a 5 kilogram lead weight. The TCM-1 measures current via the drag-tilt principle. The meter records its orientation using a three-axis accelerometer and three-axis magnetometer up to 64 times per second. The orientation data is stored internally on a SD card. The data is filtered and post processed to determine current speed and bearing. The meter has sufficient battery and memory to record current velocity for months to years depending on recording rates.

Please see PDF Brochure for full specifications

MAT Logger Commander Software is used to control Lowell Instruments' Loggers. The software is used to set up and control the logger (via a USB connection).  The software is also used to convert the data files from a binary format into a simple text file that can be opened by spreadsheets and other third-party software.

Download »

Setup Logger for Deployment

  • Specify a deployment description
  • Choose recording intervals from 1 hour to 1/64 of a second
  • Program start and stop times
  • Enable or disable the LED
 

Start, Stop and Check Sensor Readings

 

  • View logger orientation in real-time via USB
  • Start and stop logging
  • Check magnetometer, accelerometer and temperature sensor values
  • Check and set the logger's clock
 

Convert Data Files to Text Files

  • Convert binary data files to text files
  • Choose time format
  • Split files into smaller files
  • Apply custom calibration coefficients
  • Convert pitch and yaw to current and direction for Tilt Current Meters
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