6712FR ISCO Refrigerated Sampler

  • Versatile, Tough and Reliable Provides long service life in corrosive environments
  • Extensive Range Of Programming Range of modes lets the user select the most suitable routine for the application
Product Options


The 6712FR is a composite or sequential refrigerated sampler and is designed to withstand the harshest indoor or outdoor environments. The unequalled 'FR' refrigerator cabinet is corrosion-proof and moulded from polyester resin fiberglass, supported by a stainless steel frame. Samples are preserved at the EPA-recommended 4 °C (39 °F). The sampler has thick, foamed-in-place insulation, and to ensure samples won't freeze there's an automatically controlled, built-in heater.

Programming is simple and fast, with online help just a key stroke away if needed. To achieve the routine that is most suitable for your application, the advanced 6712 Controller allows the user to select different programming modes. Standard Programming Mode walks the user through the sampling sequence step-by-step, allowing all parameters specific to your application to be selected.. In Extended Programming Mode more complex programs can be entered, including smart sampling event notification, triggered on up to 16 inputs.

Standard Features

  • 512Kb standard memory gives great flexibility for logging data.
  • 'Plug and play' connection provided by SDI-12 interface - Compatible with measuring devices including multi-parameter sondes from leading manufacturers.
  • Heavy duty stainless steel frame.
  • Polyester resin cabinet with UV-resistant gel coat - Corrosion proof, non-porous and easy to clean.
  • Polyester tubing or durable powder-coated epoxy, phenolic paint protects refrigeration components.
  • Built-in heater ensures samples don't freeze even with ambient temperatures of -29°C.
  • Patented liquid detection sensor and pump revolution counter - Tells user when pump should be replaced and ensures accurate sample volumes.
  • Sample delivery velocity of 2ft/sec (EPA-recommended), even at head heights of 26ft.

Manufactured by: Teledyne ISCO
Model: 6712FR ISCO Refrigerated Sampler

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Wastewater effluent
Stormwater monitoring
CSO monitoring
Permit compliance
Pretreatment compliance


Size (H x W x D) 49.3 x 26 x 26 inches (125 cm x 66 x 66 cm)
Weight (Dry) 160 lbs (73 kg)
Refrigerator Body Fiberglass reinforced plastic with UV-resistant gel coat
Power Required 120 VAC, 60 Hz; OR 240 VAC, 50 Hz (specify)
Intake Purge Adjustable air purge before and after each sample.
Tubing Life Indicator Provides a warning to change pump tubing.
Intake Suction Tubing Vinyl or PTFE/FEP 3/8 inch (1 cm) ID; 3 to 99 feet (1 to 30 m) Length
Pump Tubing Life Typically 1,000,000 pump counts
Maximum Lift 28 feet (8.5 m)
Repeatability Typical ±5 ml or ±5% of the average volume in a set
Typical Line Velocity @ Head Height 3.0 ft./s @ 3 ft; 2.9 ft./s @ 10 ft; 2.7 ft./s @ 15 ft. (0.91 m/s @ 0.9 m; 0.87 m/s @ 3.1 m; 0.83 m/s @ 4.6 m)
Liquid Presence Detector Non-wetted, non-conductive sensor detects when liquid sample reaches the pump to automatically compensate for changes in head heights.
Weight 13 lbs. (5.9 kg)
Size (HxWxD) 10.3 x 12.5 x 10 inches (26 x 31.7 x 25.4 cm)
Operational Temperature 32° to 120°F (0° to 49°C)
Controller (continued)
Enclosure Rating NEMA 4X, 6 IP67
Program Memory Non-volatile ROM
Flow Meter Signal Input 5 to 15 volt DC pulse or 25 millisecond isolated contact closure.
Number of Composite Samples I Programmable from 1 to 999 samples.
Clock Accuracy 1 minute per month, typical, for real time clock
Sample Frequency 1 minute to 99 hours 59 minutes, in 1 minute increments. Non-uniform times in minutes or clock times 1 to 9,999 flow pulses
Sampling Modes Uniform time, non-uniform time, flow, event. (Flow mode is controlled by external flow meter pulses.)
Programmable Sample Volumes 10 to 9,990 ml in 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 collection
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 display, and distributor


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