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Portable Water Sampler [GLS]

The GLS Sampler is designed for general purpose or priority pollutant sampling in municipal and industrial applications where a full-size sampler is too large. It collects composite samples, based on time or flow intervals, in 1- or 2.5-gallon glass or polyethylene bottles, or in 2-gallon disposable ProPak® bags.

With GLS's simplified programming, setup takes less than a minute. In the field, the operator simply calls up the program with two keystrokes, presses the "go" button - and the sampling routine begins. You can also key in an alternate program in the field, without losing your stored program.

 

Standard Features

  • Overall diameter is only 16.5 inches (42 cm), so GLS fits easily into manholes as small as 18 inches (46 cm), and also easily drops into most offset manholes. 
  • Dry weight is less than 25 lbs (12 kg), the lightest sampler in the Isco line. 
  • Hinged handle makes one-handed carrying a breeze. 
  • The patented LD90 Liquid Presence Detector and Isco pump revolution counting system deliver accurate, repeatable sample volumes time after time.

 

Specification

Size (Diam. x Height):

16.5 x 26.5 inches (42 x 67 cm)

Weight:

24.5 lbs (11.1 kg) (dry, less battery)

Sample bottles:

1.0 or 2.5 gallon polyethylene or glass container.

Power Requirements:

12 volts DC. (Supplied by battery or AC power converter.)

​Pump ​

Intake purge:

Purge before and after each sample.

Tubing life indicator:

Provides a message to change pump tubing.

Intake suction tubing:

Length 3 to 99 ft. (1 to 30 m), Vinyl or Teflon® lined, ID 0.375 in. or 0.250 in

Pump tubing life:

2,000 samples

Typical repeatability:

±10 ml

Maximum lift:

26 ft. (7.9 m)

Typical line velocity @ Head height:

2.9 ft./s @ 3 ft; 2.5 ft./s @ 10 ft; 1.9 ft./s @ 15 ft. (0.76 m/s @ 0.9 m; 0.76 m/s @ 3.1 m; 0.58 m/s @ 4.6 m)

Sample presence detector:

Non-wetted, non-conductive sensor detects when liquid sample reaches the pump to automatically compensate for changes in head heights.

Operational Temperature:

32° to 120°F (0° to 49°C)

Controller ​

Enclosure:

NEMA 4X, 6 IP67

Program storage:

1 sampling program (in non-volatile ROM)

Flowmeter signal input:

5 to 15 volt DC pulse or 25 millisecond contact closure.

Number of composite samples:

Up to 500 maximum

Clock accuracy:

1 minute per month, typical, for Real Time Clock

Sampling modes:

Uniform time, flow. (Flow mode is controlled by external flow meter pulses.)

Sample frequency:

1 minute to 9,999 minutes, in 1 minute increments. 1 to 9,999 flow pulses.

Sample volumes:

Programmable 10 to 9,990 ml in 1 ml increments

Controller diagnostics:

Tests for RAM, ROM, pump, and display