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Name: Wafer Sensor
E-mail: sales@wafer-sensor.com
Add: No.645 Sherbrooke St West Montreal. Que. H4A 3T4 Canada

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SKS20/SPES20/SIC20 Suction Cups with Shaft Storage

Product name：SKS20/SPES20/SIC20 Suction Cups with Shaft Storage

Item：SKS20/SPE20/SIC20

Details：

SKS20/SPES20/SIC20 Suction Cups with Shaft Storage

The SKS20/SPES20/SICS20 allows for water and solute collection down to depths of 8 meters that could not normally be collected from other pore water samplers. Available with all three sampling cup materials (Al203 Ceramic, Polyethylene Membrane, and Silicon Carbide).

Applications

Thanks to its unique design, the SKS20/SPES20/SICS20 collects the sampled solutions and stores them inside of the shaft, where they can later be collected by applying pressure to push the sampled solution up to a sampling bottle at the surface. At these depths, water cannot be collected by applying suction because of cavitation.

Benefits

· Cost effective; sampling bottles are not needed

· Extracted soil water is stored at soil temperature

Limits

· Chemical suitability limited to the chosen suction cup material

Specifications

SHAFT	Ø 2.5 cm; PE
POROUS CERAMIC	Ø 2 cm; length 6 cm
BUBBLE POINT	Al203 Ceramic: -100 kPa; Silicon Carbide: -90 kPa; PE Membrane; -100 kPa (only allows water flow up to -20 kPa)
SUCTION TUBE	PE; Ø 0.2 cm x Ø 0.4 cm
ACHIEVABLE SAMPLE AMOUNTS	Maximum: in free water and with a vacuum of -50 kPa approximately 5 mL per 10 minutes. Minimum: in sandy loam soil with a vacuum of -50 kPa approximately 5 mL per hour.

COMPARISONS

PORE WATER SAMPLER	SK20/SKS20 (Internal Shaft Storage)	SIC20/SICS20 (Internal Shaft Storage)	SPE20/SPES20 (Internal Shaft Storage)
SUCTION CUP MATERIAL	Aluminum Oxide Ceramic	Silicon Carbide	Porous PE-Nylon Cup
CHEMICAL SUITABILITY
· Anions ( Nitrate, Sulphate, Phosphate, Chloride)	Suitable	Suitable	Suitable
· Cations (Calcium, Potassium, Sodium Ammonium)	Limited Suitability	Suitable	Suitable after conditioning and sufficient forerun for flushing.
· Metals (Aluminum, Copper, Chromium, Iron, Magnesia, Nickel)	Not Suitable	Suitable	Suitable
· Heavy Metals (Cadmium, Lead)	Not Suitable	Limited Suitability	Suitable
*See Chemical Suitability Chart for more information on chemical suitability.
BUBBLE POINT	100 kPa	90 kPa	100 kPa (PE cover only allows water flow up to 20 kPa)