r Controller Serial # 07163-007 Power 12 VDC INTL Auto-Reset Circuit Breaker The 3700 Automatic Sampler collects composite or sequential samples based on flow rate, time or storm conditions. The LD90 compensates automatically for changes in head height, plus automatic suction line rising to prevent cross contamination. The LD90 features a non-contacting liquid sensor which is not affected by temperature, viscosity, conductivity or liquid composition. Cleaning and tubing replacement is fast and easy, as there are no internal tubing connections. The 3700 automatic sampler pump outperforms most competing samplers and maintains the EPA- recommended 2ft/second line velocity at head heights up to 16 feet, with ? - inch suction line. The 6700 Series is recommended for higher lifts. 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. Applications Permit compliance Pretreatment compliance storm water monitoring CSO monitoring Wastewater effluent Features of the 3700 Full Size Portable Sampler 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 - Storm water runoff sampling - Multiple bottle compositing - Split sampling Thick, foamed-in-place insulation and twin-wall design provide maximum performance in sample preservation. **CLICK HERE FOR BIDDING**