6712C Compact Portable Sampler

Advanced sampling capabilities in a smaller package

6712C Compact Portable SamplerThe 6712C compact model gives you the world's most versatile sampler controller in a smaller-diameter package that fits in 18" and offset manholes. Large, comfortable handles make transporting safe and convenient - even when wearing gloves. The NEMA 4X, 6 (IP67) enclosure is submersible, watertight, and dust-tight. Plug-in 700 Series Modules and the SDI-12 interface make it easy to add flow and parameter monitoring to your 6712-based system. 

ISCO's advanced 6712 Controller allows you to select different programming modes to assure the most suitable routine for your application. Programming is fast and simple, with on-line help just a key stroke away. 

In Standard Programming Mode, the controller walks you through the sampling sequence step-by-step, allowing you to choose all parameters specific to your application. Extended Programming Mode lets you enter more complex programs including “smart sampling” event notification, triggered on any combination of up to 16 inputs.


When you purchase instruments from Teledyne ISCO, you not only receive innovative, high quality products, you also receive excellent customer service and product support. Your initial purchase is only the beginning of Teledyne ISCO's ongoing commitment to their customers.


Sampler Selection GuideBrochure
Sampler Source BookBrochure
Isco 6712C Compact Portable Sampler Datasheet (Chinese)Datasheet
ISCO 6712C Compact Portable Sampler DatasheetDatasheet
LTE Cell Service Activation for the 6712CiInstruction Sheet
Isco Stormwater Monitoring GuideOther
6712 Portable Sampler Pocket Guide (German)Pocket Guide
6712 Portable Sampler Pocket GuidePocket Guide
6712 Portable Sampler User ManualUser Manual


​​​​​​6712C Compact Portable Sampler

Size (Diam x Ht): 17.7 x 27.6 inches (45.7 x 70.1 cm)
Weight: Dry, Less Battery - 31 lbs (14 kg)
Material: Plastic with UV-resistant gel coat
Power Requirements: 12 VDC

Pump ​

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 Teflon®; 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.

Controller ​

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)
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: Programmable from 1 to 999 samples.
Clock Accuracy: 1 minute per month, typical, for real time clock

Software ​

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​

​For a full list of product specifications, see the datasheet.



tandard Features

  • SDI-12 interface provides “plug and play” connection with multi-parameter water quality sondes and other compatible monitoring devices.
  • Standard 512 kB of memory gives you great flexibility for logging environmental data.
  • Choice of 5 different bottle configurations ranging from 24 x 500 ml to 1 x 2.5 gallon.
  • NEMA 4X, 6 (IP67) controller enclosure
  • Rugged ABS plastic shell
  • Foam-insulated base holds up to 15 pounds (6.8 kg) of ice.
  • 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.


  • wastewater effluent
  • stormwater monitoring
  • CSO monitoring
  • permit compliance
  • pretreatment compliance

Options and Accessories

  • Sequential sampling 24- and 12-bottle configurations
  • ProPak disposable sample bags
  • Composite sampling 2.5 gallon (glass or plastic) bottle configurations
  • Suction lines and strai​ners
  • 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
  • Cell phone-based data retrieval and dial-out alarm
  • 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