Batch Sampler LS-20

Technical Details

  LS20 LS60


Size Range  User defineable 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/minute  60 ml/minute
Light Source  Laser Diode
Calibration  NIST Traceable
Syringe Sizes  10mL, 25mL
Maximum Sample  1 liter
Communication Modes  RS-485 MODBUS
Wetted Components  Teflon (PFA), Quartz, Kalrez, Kel F, Polypropylene
Stirrer  Magnetic, Adjustable Speed
Connectors RJ45
Supporting Software LS Software  LS-60 Software
Enclosure  Stainless Steel
Power  100-240 VAC, 24 VDC to LS20  100-240 VAC, 24 VDC
Dimensions  12.875”(l) x 8.75”(w) x 14.75”(h) [32.7 x 22.2 x 37.5 cm] 12.85”(l) x 8.75”(w) x 14.58”(h) [32.64 x 22.23 x 37.03 cm]
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 LS20 instrument, USB to RJ45 cable, power supply, 500 ml beaker with edge guard, 10 feet of tubing, flow cell cleaning solution; nut and ferrule kit;
2x magnetic stir bars; Operators Manual and LS Software on USB key; Calibration Certificate and Carry Case with wheels.
Operating manual on CD; LS-60 software; power supply; flow cell cleaning solution and brush; cable; RJ-45 to DB9 adapter; sample tubing; nut and
ferrule kit; 500 mL beaker; magnetic stir bar, and carrying case with wheels.
Optional Printed operating manual; IQ/OQ Validation Documents, 10ml syringe; 5-piece beaker set (50, 100, 250, 600, 1000 ml beakers); certificate of origin. Printed operating manual; 10mL syringe; 5-piece beaker set (50, 100, 250, 600, 1000 ml beakers); certificate of origin.

How - To - Videos

Get a Quote


First Name (*)
Last Name (*)
Company Name (*)
Email (*)
Phone (*)
Address (*)
Country (*)
Primary Industry (*)
Message (*)
(*) Required Fields

Lighthouse LS-20 Liquid Samplers have 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

Download up to date Pharmacopeia recipes for use on our LS-20 Software.

Contact us to learn more!

These recipes Comply with the Global Pharmacopeias ( USP, EP, JP, CP and KP) to make tests for injectables using the Lighthouse LS20 liquid particle counter.

Instrument Files

Brochure – LS20, LS60
Operating Manual – LS20
Datasheet – LS20/60

Related Products