LS-20 LS-60


Size Range  1.0 - 50.0 μm 0.1 - 0.5 μm;
0.2 - 2.0 μm;
0.3 - 3.0 μm;
0.5 - 100 μm
Channel Thresholds  1.0, 2.0, 3.0, 5.0, 10.0, 15.0, 25.0, 50.0μm 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.5μm;
0.2, 0.3, 0.4, 0.5, 0.7, 1.0, 1.3, 2.0μm;
0.3, 0.5, 0.7, 1.0, 1.3, 2.0, 2.5, 3.0μm;
0.5, 1.0, 2.0, 5.0, 10.0, 25.0, 50.0, 100.0μm
Number of Channels 8
Flow Rate  20 mL per minute  60 mL per minute
Light Source  Laser Diode
Calibration  NIST Traceable
Syringe Sizes  10mL, 25mL
Maximum Sample  1 liter
Communication Modes  RS-232  RS-485 MODBUS
Wetted Components  Tefl on (PFA), Quartz, Kalrez, Kel F, Polypropylene
Stirrer  Magnetic, Adjustable Speed
Connectors  RJ45
Supporting Software  LS-20 Software  LS-60 Software
Enclosure  Stainless Steel
Power  100-240VAC, 24 VDC to LS20  24 VDC
Dimensions  12.875”(l) x 8.75”(w) x 14.75”(h) [ 32.7 x 22.2 x 37.5cm]
Weight  20.5 lbs (9.3kg)

Environmental Conditions

Operating 50°F to 104°F (10°C to 40°C) / 20% to 95% non-condensing
Storage 14°F to 122°F (-10°C to 50°C) / Up to 98% non-condensing


Included Operating Manual on CD; LS-20/60 Software; Power Supply; Flow Cell Cleaning Solution and Brush;
Cable; RJ-45 to DB9 Adapter; Sample Tubing; Nut and Ferrule Kit; 500mL Beaker; Magnetic Stir Bar.
Optional Printed Operating Manual; 10mL Syringe; 5-piece Beaker Set (50, 100, 250, 600, 1000mL Beakers); Carrying Case with Wheels; Certificate of Origin.


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Batch Sampler LS-20

The Lighthouse LS-20 Liquid Sampler has an integrated syringe sampler and optical particle counting system. Its easy-to-use Windows based software interface is designed to meet the international regulatory EP and JP, as well as USP 788 requirements. Following a quality standard of reliability and dependability, Lighthouse Worldwide Solutions developed the LS-20 Liquid Sampler using the latest in laser optical particle counter technology. The LS-20 uses a high accuracy syringe pump flow control system and a high sample volume sensor. With sample volumes adjustable from 1 to 1000 milliliters (10 mL syringe), it is a perfect tool for multiple batch sampling applications.

The graphical user interface makes the LS-20 easy to configure and operate. Data is automatically recorded from up to eight particle size channels ranging from 1.0 to 50.0 or 1.0 to 200 microns and is easily available in graph and tabular form in real time. All reports can be preconfigured and printed at the touch of a button. 


  • 1.0 µm to 50 µm or 1.0 µm to 200 µm size range
  • Integrated “light obscuration” particle counter software designed for 21 CFR part 11
  • International regulatory EP, JP reports
  • USP 788 reports
  • Sample volumes from 1 to 1000 ml
  • Preconfigured USP 788 recipes
  • Precise syringe pump flow control
  • Stainless steel enclosure
  • Built-in magnetic stirrer
  • Automated sample handling maximizes repeatability
  • Compact footprint

Type Part # Title Paper Size File Size Download
Brochure - Batch Sampler LS-20, LS-60 Letter 476.81 KB DOWNLOAD
Datasheet - Batch Sampler LS-20 Letter 2.50 MB DOWNLOAD
Operating Manual 248083344-1 R4 Batch Sampler LS-20 Letter 5.74 MB DOWNLOAD


Quick How To: Liquid Sampler LS20 - Initial Set-Up
Quick How To: Liquid Sampler LS20 - Home Screen Set-Up
Quick How To: Liquid Sampler LS20 - Initial User Set-Up
Quick How To: Liquid Sampler LS20 - How to Add Recipes
Quick How To: Liquid Sampler LS20 - How to Change Syringe
Quick How To: Liquid Sampler LS20 - How to Change Thresholds
Quick How To: Liquid Sampler LS20 - Reports
Quick How To: Liquid Sampler LS20 - Audit Trail Function