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تعداد بازدید: 1482

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Tube-shaped bottom sampler for soft and sandy grounds

The Sediment Corer is easy to handle and can be operated manually in shallow waters with a push rod or on a rope simply using gravity in greater water depths. During descent the plastic valve flap on top of the transparent plexiglass tube is held open to let the water flow freely through the tube. To retrieve the sample the corer is lifted from the sediment and the water pressure at the valve flap closes the tube. A vacuum is holding the sediment sample in place and is preventing washout. Out of the water the provided piston is put into the lower end of the tube. The tube holder with rope stirrup is taken off and the tube with the core sample is placed onto the piston. When the tube is now pressed onto the piston the core sample will be removed for examination

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تعداد بازدید: 1534

The OCEAN SEVEN 316Plus CTD multiparameter probe is the evolution of the well-known OCEAN SEVEN 316 probe, more than 1000 units sold all over the world. The Ocean Seven 316Plus is equipped with the well-known IDRONAUT full ocean depth, pump-free and long-term stability sensors.  Central to which, is the high accuracy seven-platinum-ring quartz conductivity cell (patented), which can be cleaned in the field without the need for re-calibration. This unique quartz cell employs a large diameter (8 mm) and a short length (46 mm) to guarantee self-flushing and no clogging after long-term deployment even in biologically active waters. Competitors' sensors, which present few mm only of cell orifice and very long cell length, are prone to clog even if protected by dangerous and poisonous antifouling devices. The OCEAN SEVEN 316Plus CTD multiparameter probe  does not require pumps or any other external device to flush the sensors, which minimizes its power consumption and allows the use in Arctica and Antarctica. However, pump is optional. 
For added  flexibility, the OCEAN SEVEN 316Plus CTD multiparameter probe can be operated in either verbose or non-verbose mode, the latter being especially convenient for system integrations on buoys, ROVs and AUVs, thus making this probe an ideal choice for both on-line profiling and self-recording moored applicatio

 

توضیحات
تعداد بازدید: 1478

محفظه شمارش لوله ای پلانکتون

 

محفظه شمارش لوله ای جهت شمارش پلانکتون ها قابل مشاهده با هر میکروسکوپ اینورت و پایه ساخته شده از قلز استنلس استیل 316 و قطر خارجی 47 میلیمتر . 

 

در حجم های 5 و 10 و 25 میلی و  طول لوله   11و22و55 میلیمتری

Top glass O.D. 32 x 1.0 mm & Bottom glass

 

 Made by Kc- Denmark

 

 

 

 

 

 

 


 

 

توضیحات
تعداد بازدید: 1463

Sedgwick Rafter Counting Cells


Gridded Sedgewick Rafter simple design of surprising accuracy commonly used for counting larger plankton. Recommended for its ease of use and reproducible data. Intended for use with either a standard or inverted compound microscope at low magnifications, it limits magnification to about 200 x,
Specifications:
• Frame: brass, mounted on 1" x 3" glass slide.
• Cell size: 50 mm x 20 mm x 1 mm
• Cell volume: 1.0 mL
• Includes: 2 cover glasses, plastic case.
• 1801-G20 Gridded model includes 1mm x 1mm grid etched on slide with 1 microliter of fluid per gridded square

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تعداد بازدید: 1131


 

 

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توضیحات
تعداد بازدید: 1403

                           

Visibility Disc acc. to Secchi

The Visibility Disc acc. to Secchi is a white lacquered brass disk with a diameter of 200 mm and a weight

of 1.7 kg. It is an easy-to-use instrument for stan- dard monitoring of water transparency in lakes and oceans.

The standard Visibility Disc is equipped with a rope of 3 meters in length. The first 2 meters of rope

above the disc have 10 marks every 20 cm for measurement purpose.

The Visibility Disc is lowered into the water and the immersion depth is read from the marked rope or the

graduation at the tape measure at the moment the disc vanishes from sight. It is lowered another 0.5 m

and then heaved slowly again. The second reading is made when the disc reappears. The arithmetic mean

from both readings equals the visibility depth


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