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Avalanche® Multi-bottle, Multi-function Sampler

Advanced sampling and data logging with transportable, dual-power cooling

The Avalanche® Sampler is based on the industry-leading 6712 controller. Avalanche provides the advanced control, data logging, and communication features of the 6712, combined with on-the-go cooling from either AC power or a 12-volt deep cycle battery. Bottle configurations include 5 gallon and 2.5 gallon composite as well as 4 x 1 gallon and 14 x 950 ml sequential.

Like the simpler, composite-only Glacier sampler, Avalanche delivers 48 hours or more of refrigeration from a 12 volt deep cycle battery. Its power-saving cooling system remains on standby until the first sample is drawn, and then switches on to preserve the collected samples until a convenient pickup time. You can easily enter complex programs to suit your unique needs. Available routines include: pause and resume for intermittent discharge flow monitoring; sampler pacing by time, non-uniform time, flow or external event; and random interval sample collection.

Standard Features

  • Standard and extended programming keeps setup simple when you don't need advanced features.
  • NEMA 4x, 6 (IP67) controller enclosure is watertight and dustproof.
  • SDI-12 interface provides “plug and play” connection with multi-parameter water-quality sondes and other compatible devices.
  • Standard 512kB memory gives you great flexibility for logging environmental data.
  • NEMA 4X, 6 (IP67) controller enclosure
  • Sample delivery at the EPA-recommended velocity of 2 ft/sec., even at head heights of 26 feet.
  • Patented pump revolution counter ensures accurate sample volumes - and tells you when tubing should be replaced.


  • Stormwater Runoff Compliance
  • TMDL and Watershed monitoring
  • Enforcement Monitoring
  • Permit compliance
  • Anywhere you need advanced sampling capability combined with data logging and communications for flow, rainfall, and water quality parameters – plus reliable, on-demand cooling.

Options and Accessories

  • Composite sampling bottle configurations
    • 5-gallon poly bottle
    • 2.5-gallon glass bottle
    • 2.5-gallon poly bottle
  • Sequential sampling bottle configurations
    • 1-gallon poly bottles (4 bottles)
    • 950 ml poly bottles (14 bottles)
  • Suction lines and strainers
  • Solar panels for remote installations
  • Power sources including Ni-cad or lead-acid batteries and solar panels
  • 674 Rain Gauge
  • 700 Series Modules for flow and parameter measurement
  • Telephone Modem for alarm dial out features
  • Cell phone-based data retrieval, dial-out alarm, and remote control
  • Wireless radio data retrieval with 2102 module
  • 581 RTD data retrieval device
  • Flowlink® Software
  • Optional temperature sensor - provides precise log of sample compartment temperature for automatic documentation
Size (HxWxL):​30.5 x 14 x 24 inches (78 x 36 x 60 cm)
Weight:Dry, less battery - 76 lbs (35 kg)
Power Requirements:12 VDC, 6 Amps (supplied by external battery), OR 87 to 264 VAC, 47 to 63 Hz, 2 Amps
Cooling:CFC-free refrigeration system maintains sample temperature at 3° C±1°C at ambient temperature of 0°C to 40°C.
Operational Temperatures:0°C to 50°C
​Intake Purge​Adjustable air purge before and after each sample
​Tubing Life IndicatorProvides a warning to change pump tubing
Intake Suction Tubing​Vinyl or Teflon®; 1 cm (3/8") ID; 1 to 30 m (3 to 99 ft) length
Pump Tubing Life​Typically 1,000,000 pump counts
Maximum Lift​8.5 m (28 ft)
Typical repeatability: ± 5 mL or ± 5% of the average volume in a set
Typical Line Velocity at Head Height​0.91 m/s at 0.9 m (3.0 fps at 3 ft);
0.87 m/s at 3.1 m (2.9 fps at 10 ft);
0.83 m/s at 4.6 m (2.7 fps at 15 ft)
Sample presence detector:Non-wetted, non-conductive sensor detects when liquid sample
reaches the pump to automatically compensate for changes in
head heights
​Weight13 lbs. (5.9 kg)
Size​10 x 12.5 x 10 inches (26 x 32.x 25 cm)
Operational temperature:​32° to 120°F (0° to 49°C)
​Enclosure Rating​NEMA 4X, 6 IP67
​Program Memory​​Non-volatile ROM
​Flow Meter Signal Input5 to 15 VDC pulse or 25 ms isolated contact closure
External trigger:Initiates sample collection and cooling from contact closure signal
​Number of Composite Samples​Programmable from 1 to 999 samples
​​Clock AccuracyTypically ​1 minute per month for real time clock
​Sample Frequency1 minute to 99 hours 59 minutes (1 minute increments);
non-uniform times in minutes or clock times 1 to 9,999 flow pulses
​Sampling Modes​Uniform time, non-uniform time, event, flow (flow mode is
controlled by external flow meter pulses)
Programmable Sample Volumes10 to 9,990 mL (1 mL increments)
​Sample Retries​If no sample is detected, up to 3 attempts (user-selectable)
​Rinse Cycles​Automatic rinsing of suction line up to 3 rinses for each sample
​Program Storage​5 sampling programs
​Sampling Stop/Resume​​Up to 24 real time/date sample Stop/Resume commands
​Controller diagnostics:​​Tests for RAM, ROM, pump, and display