Century 3000-QLS Indoor Refrigerated Composite/ Sequential Vacuum Wastewater Sampler                           

Wide range of bottle configurations and QCEC reliability

Century 3000-QLSBuilt tough for tough duty, the Century 3000-QLS is our refrigerated vacuum wastewater sampler. It relies on proven vacuum pump technology to deliver high sample integrity and reliable performance. The vacuum pump exceeds EPA transport velocity requirements and generates a stronger purge. The maximum vertical lift is 28 feet. This unit uses​ a self learning smart sampling system. A two year warranty is standard.


QCEC Model Century 3000-QLS Vacuum Sampler DatasheetDatasheet
QCEC Model Century 3000-QLS WallMount Vacuum Sampler DatasheetDatasheet
QCEC Model Century 3000-QLS Refrigerated Indoor Sampler ManualUser Manual (Legacy)


Standard Features

  • 4.9 cubic foot refrigeration unit
  • 20 - 500mL programmable sample size
  • Self calibrating sample size
  • 115V operation
  • Pre-sample/post-sample purge -- 0 - 99 sec.
  • Auto shut-off or continuous run
  • Delay start -- 1 thru 9999 min.
  • Constant sampling -- Time/Flow (1 - 24)
  • Real Time Clock
  • Inputs (pulses, 4 - 20mA, 0 - 10 volts DC)
  • Start/Stop programming
  • Data logging
  • Pass code protection​


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.


​​​​​​​​​​​​​Century 3000-QLS Indoor Refrigerated Composite/Sequential Vacuum Sampler

Size (H x W x D): 43 in. (110 cm) x 20 in. (51 cm) x 24.25 in. (62 cm)
Weight (Dry): 120 lbs. (55 kg)
Power Required: 115 VAC
​Sample Temperature:​Maintains ​39°F (4°C)
​Corrosion Protection:​Refrigerated copper lines, phenolic coated (enamel coating on condenser and compressor)

​Temperature Limit:

​32° to 120°F (0° to 50°C)
​Pump Type:​Vacuum suction lift pump
​Intake Tubing:​Vinyl 3/8 in. (.95 cm)
​Maximum Lift:28 feet (8.6 m)
​Sample Transport Velocity:​Greater than 3.25 FPS @ 20' with a 3/8" (.95 cm) tubing


±4 ml
​Programmable Functions:

​Pre-purge: 0 - 99 sec.

Post-purge: 1 - 99 sec.

Auto shut-off

Delay start

Flow pacing (pulses): 1 to 9999 dry contacts, 4 - 20mA, 0 - 10 VDC, 0 - 5 VDC

Sampling interval: 1- 9999 min.

Programmable Sample size: 20 mL - 500 mL increments

​Controller:​Microprocessor control
​Warranty:​Two year warranty from shipment

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