PLANKTON NETS

WATER SAMPLERS

SEDIMENT CORERS

PLANKTON SAMPLERS

LABORATORY EQUIPMENT

Water Samplers

Vertical Point Water Sampler

• General purpose water sampling of:
  • physical (temperature)
  • chemical (dissolved gasses, nutrients, metals)
  • and biological (photozooplankton) data
• Freeflushing, non-metalic sample containment
• Simple, sure-fire vertical release mechanism
• multiple samplers on a single wire can be deployed for serial ("inseries") collection of water at various depths

Water Sampler Units Include:

• sample cylinder:
  • standard volumes: 2.2 and 5.0
  • clear polycarbonate (92 mm I.D., 3 mm wall thickness) or PVC (95 mm I.D., 10 mm wall thickness) with UHMW end bushings
  • stainless steel tube weight (1.5 kg)
• armored thermometer (optional):
  • mounted inside clear polycarbonate water samplers
  • available in C or F
• PVC drain and vent:
  • 20 mm diameter
  • latex drain tube and pinch clamp
  • internal closure: latex tubing (12.5 mm I.D.; 19.5 mm O.D.) with internal elastic "backup" cord
  • Teflon coated stainless steel spring with Kevlar lanyards available at an additional cost
• solid rubber ball end seals:
  • internal closure and arming cables are attached by threaded PVC fittings
  • all components easily serviced
• vertical release mechanism:
  • Polyethylene and stainless steel construction
  • simple, spring loaded anvilrelease pin provides easy sampler loading
  • built-in heavy duty handle
  • stainless steel cable clamps allow easy attachment of multiple samplers to a single wire (maximum diameter: 9 mm) for "inseries" deployments
• messenger:
  • 333 gm cast bronze with stainless steel hardware, split messenger with hole for lanyard attachment

Horizontal Point Water Sampler

• Thin-layer sampling of:
  • physical (temperature)
  • chemical (dissolved gasses, nutrients, metals)
  • and biological (phytobacterioplankton) data
• Nonmetalic sample containment
• Messenger activated horizontal release mechanism is easy to load
• near bottom water recovery with bottom tripping assembly (optional)
• horizontal release mechanism:
  • Polyethylene and stainless steel construction
  • simple, spring loaded release pins provides easy sampler loading and surefire operation
  • built-in heavy duty handle
  • single sampler attached to end of line
    

PVC DISCRETE POINT WATER SAMPLERS

• Horizontal or vertical orientation
• opaque PVC and polyethylene construction
• silicone end seals
• heavy duty amber latex internal closure
• stainless steel lanyards
• simple single-moving-part release mechanism
• solid bronze messenger (300 gm)
• 20 m calibrated line (0.5 m increments)
• linereel
• padded toolbox carry case
• 2.2 liter capacity
• complete $300

• Other sampler volumes available (complete, as above):
  • 3.0 liter ($350)
  • 5.0 liter ($400)
  • and 10 liter ($500)
• Internally mounted thermometers with armored case (centigrade, 5 to 45 degrees, liquid spirt filled): $35.

Notes: Designed for general limnological uses and light sensitive studies of phytoplankton and bacterioplankton. Inseries sampling possible with vertical models and optional bronze split-messengers. Horizontal models useful for thin layer or near bottom sampling.

Heavy-duty latex internal closure is easily tightened or replaced with a simple, “threadon” assembly.

POLYCARBONATE POINT WATER SAMPLERS

• Horizontal or vertical orientation
• clear polycarbonate and polyethylene construction
• ultraclean silicone end seals
• heavy-duty amber latex internal closure
• stainless steel lanyards
• simple single-moving-part release mechanism
• solid bronze messenger (300 gm)
• 20 m calibrated line (0.5 m increments)
• linereel, padded toolbox carry case
• 2.2 liter capacity
• complete $285

• Internally mounted thermometers with armored case (centigrade, 5 to 45 degrees, liquid spirt filled): $60.
• Other sampler volumes available (complete, as above): 3.0 liter ($350), 5.0 liter ($400) and 10 liter ($400)

Notes: Designed for general limnological use where sampler clarity is important (zooplankton collection, near bottom water recovery w/o contamination, hydrogen sulfide…).

EPA approved for ultraclean analysis of water. Inseries sampling possible with vertical models and optional bronze split-messengers. Horizontal models useful for thin layer or near bottom sampling.

Horizontal samplers can be inverted and actuated with a sharp tug on towline with a “Toggle Release” (above right, included).

This is very useful when deploying a sampler from a bridge where currents deflect the towline and the messenger can not effectively hit the release mechanism.

Heavy-duty latex internal closure is easily tightened or replaced with a simple “thread-on” assembly.