Applications:

• NPDES Compliance
• Stormwater Runoff Monitoring
• Pretreatment Compliance
• CSO Monitoring
• Industrial Wastewater Discharge
• WWTP Process Control

Durable, Heavy-Duty Construction:
Portable Samplers take a lot of abuse in the field. But rest assured that the Sigma 900 Series Portable Sampler is rugged enough to take whatever the elements dish out. It features a tough, molded ABS exterior designed to be tough, and a tightly sealed controller that withstands humidity and hostile, corrosive environments. The controller conforms to NEMA 4X,6 standards (capable of withstanding hose spray and submersion under 6 ft. of water for a minimum of 30 minutes), isolating all electromechanical components while the keypad switches and display are covered by a waterproof, corrosion resistant membrane. The sealed connectors (even without capping) and pump shaft seal further protect the samplers environmental integrity.

Once the sample is collected, it is  kept cool within the double-walled insulated base. The compact base holds 8-1/2 lbs. Of ice with the twenty-four 575 ml bottles in place, and the standard base holds 32 lbs. of ice with twenty-four 350 ml glass bottles in place. The sampler's light beige color reflects sunlight, helping the ice to last even longer.

This fixed-site sampler is designed to endure the most humid and highly corrosive environments. American Sigma´s Refrigerated Sampler features a sealed controller for maximum protection from the elements and is available with an optional stainless steel refrigerator. A NEMA 4X,6 housing isolates all electromechanical components while the keypad, switches and display are covered by a waterproof, corrosion resistant polyester membrane. The unit´s sealed connectors and pump shaft seal further guarantee the Sigma 900´s environmental integrity.

Accurate Temperatures:

Refrigeration temperature is controlled in accordance with EPA guidelines by a custom-designed air-sensing thermostat. A high efficiency compressor/condenser assembly, wraparound evaporator, and rigid foam insulation ensure optimum 9°F (4°C) sample temperature. The unit´s forced air blower and front ventilation provide the flexibility to position the sampler either against a wall or inside a sampler enclosure.

Sigma 900 Refrigerated Sampler Features

• Highest sample integrity for data you can count on
• Simple to understand, efficient to use
• Refrigerator maintains 4°C
• Sealed controller, corrosion protected... it´s built to last
• Sigma 900 and Sigma 900 MAX to meet your needs

Mother Nature Meets Her Match
Customers quickly learn that the name All Weather is no exaggeration. This sampler is designed to operate anywhere - indoors or out - without a secondary enclosure. Completely self-contained, the All Weather is rated for operation in temperatures from -40° to 120°F. The cabinet is resin transfer-molded fiberglass with rounded, moisture-shedding, UV-resistant surfaces. Its sidewall ventilation system allows positioning against a wall, and its sturdy locks prevent tampering. A level adjustment and stainless steel anchoring rails ensure proper, secure installation.

The Advantages of the All Weather

• All fiberglass construction provides superior corrosion and UV resistance.
• NEMA 4X,6 controller seals out moisture and corrosive gases.
• High integrity temperature control system automatically adjusts to ensure 4°C samples in ambient environments from -40° to 120°F (-40° to 50°C).
• Mechanical door latch with compressible gasket ensures positive seal, even with wide temperature fluctuations.
• Lip overhangs door seal, preventing precipitation from entering sample containers.