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  • Wastewater sampler / automatic / composite / portable


Article: 00121812

Wastewater sampler / automatic / composite / portable

The full-featured 3700 Sampler collects sequential or composite samples based on time, flow rate, or storm conditions. It's a great choice if you don't need the sophisticated parameter monitoring and logging capabilities of our 6700 Series.

The exclusive LD90 gives you automatic compensation for changes in head height, plus automatic suction line rinsing to prevent cross contamination. The non-contacting liquid sensor is not affected by conductivity, viscosity, temperature, or liquid composition. There are no internal tubing connections, so cleaning and tubing replacement are fast and easy. The 3700 pump outperforms most competing samplers and maintains the EPA-recommended 2 ft/second line velocity at head heights up to 16 feet, with 1/4-inch suction line. For higher lifts, we recommend our 6700 Series.

Ample ice capacity and high-performance insulation in the base keep your samples cool. With 20 lbs of ice in the base and 4 gallons liquid collected at 65°F, the sample temperature is maintained at least 32°F below ambient for 24 hours.

Standard Features

Exclusive LD90 Liquid Presence Detector and pump revolution counting system ensure accurate, repeatable sample volumes.
Basic and extended programming modes for:
- Uniform time intervals
- Non-uniform time intervals
- Stormwater runoff sampling
- Multiple bottle compositing
- Split sampling
Thick, foamed-in-place insulation and twin-wall design provide maximum performance in sample preservation.
3700 Controller is housed in a NEMA 4X and 6 (IP67) environmentally sealed enclosure, and is fully interchangeable between portable and refrigerated samplers.


  • Sample type: wastewater
  • Technology: automatic, composite
  • Other characteristics: portable

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