Microtrac S3500 User Manual

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Microtrac S3500 Particle Size Analyzer

Operation and Maintenance Manual

OM0006

1/04

Table of Contents

Questions and Answers:

R
Reginald BranchAug 6, 2025
Why do I get spurious data from my Microtrac S3500 Measuring Instruments?
- C
  Cheryl SotoAug 6, 2025
  Spurious or inconsistent data from Microtrac Measuring Instruments can arise from several causes: * Air bubbles in the sample system: Allow more time for the bubbles to dissipate, or stop and start the Recirculator flow. * Old sample remaining in the system: Clean the system by repeated flushing. * Dirt or water spots on the Sample Cell: Remove the Sample Cell. If this corrects the problem, clean the Cell, and try again. * Dirt or water spots on the lenses: Inspect lenses and clean if required.
J
Jennifer StanleyAug 11, 2025
What to do if Microtrac S3500 show laser alignment failure?
- B
  Brandon GriffinAug 12, 2025
  If your Microtrac Measuring Instruments indicate a laser alignment failure, consider these possible causes and solutions: * Open Sample Chamber door: Ensure the door is completely closed. * No fluid in the Sample Cell: Check the Recirculator to confirm adequate fluid levels. * Dirty optics: Clean the Cell and Lenses to remove any obstructions.
B
Brian SmithAug 19, 2025
How to troubleshoot no AC power in Microtrac Measuring Instruments?
- Y
  Yolanda LittleAug 19, 2025
  If your Microtrac Measuring Instruments are not receiving AC power, try the following: * Power cord disconnected: Connect the cord to a live AC source receptacle. * Defective power cord: Replace the power cord. * Defective fuses: Replace defective fuses.

Microtrac S3500 Specifications

General

Measurement Principle	Laser Diffraction
Software	Microtrac FLEX
Power Requirements	100-240 VAC, 50/60 Hz
Light Source	Laser Diode, 780 nm
Sample Delivery	Dry or Wet
Sample Presentation	Liquid or powder