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Bedford Institute of Oceanography – Wet Table

Bedford Institute of Oceanography – Wet Table

Projects dedicated to Research

Bedford Institute of Oceanography – Wet Table

Institution:

 Bedford Institute of Oceanography

Location:

 Dartmouth, Nova Scotia, Canada

Contact:

   Dr.  Peter Cranford

Habitat:

 Freshwater & Seawater

Type of rearing unit:

 WATER BATH WITH GROWTH CHAMBERS
 Temperature:  0- 30°C

Unit description:

This custom research system is built for conducting 16 routine measurements simultaneously of shellfish feeding. This water baith can hold up to 16 chambers and maintain a set temperature between zero and 30 °C. Each chamber emplacement has a water supply that can be shut off to start the experiment, and a series of inlets and a outlet as described below.

Water bath

  • 4 ft long Wet Table (water bath).
  • Insulated plastic tank (2ftW x 4ftL x 12”H).
  • Water height control (0 to 5″).
  • On a Fiberglass and plastic seawater resistant frame.
  • 16 water inlets with valve & tubing and 16 air outlets with valve, tubing.
  • 16 water outlets (water flow to each chambers is 500 ml/min).
  • Water temperature control (0 to 30°C).

Note that a temperature of 0°C will be acheived by recirculating a diluted
solution of propylene glycol (25%) within the water bath.

Mandate:

Conception
Fabrication

Bedford Institute of Oceanography – Wet Table

The Water Bath Unit is composed of an insulated tank, a sump and a temperature control system driven by a magnetic pump. The circulation pump takes water from the sump, through the TR-20 temperature controller and returns it into the water bath.

The 123-Litres holding tank is constructed of non-toxic ABS plastic and is covered by a lid. The tank is supported by a rack made of fibreglass and plastic.

The control of the temperature is accomplished by the TR-20 temperature controller with:

  1. A 400 watt heater.
  2. A titanium heat exchanger with 1/3 hp chiller.
  3. A temperature scale running from 0 to 30°C*.

* Note: for a temperature of 0°C, a glycol solution (20% V / V) must be recirculated.

The American University in Cairo - Wet Table 1

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