Met One Instruments Manuals & User Guides

מיט One Instruments, Inc., now powered by Acoem, is a leading designer and manufacturer of precision instrumentation for monitoring ambient and indoor air quality. Established in 1989 and headquartered in Grants Pass, Oregon, the company provides robust, industrial-grade meteorological equipment, portable and stationary particulate monitors, and complete environmental monitoring systems.

Their solutions are widely used by government agencies, research centers, and private industries for regulatory compliance, industrial hygiene, and environmental research. Met One Instruments is known for its durable, accurate, and easy-to-use devices, ranging from handheld particle counters to complex weather station arrays.

• Where can I find the serial number on my Met One instrument?

  The serial number is typically located on a silver product label on the unit and is also printed on the calibration certificate. It generally consists of a letter followed by a unique five-digit number.

• Is it safe to open the instrument cover for maintenance?

  No. Many Met One instruments (such as particle counters) are Class I laser products. Opening the cover may expose you to hazardous laser radiation. There are often no user-serviceable parts inside.

• How do I obtain a Return Authorization (RA) number?

  To return equipment for service or calibration, you must contact Met One Instruments technical service to obtain a Return Authorization (RA) number prior to shipping the unit back to the factory.

• How often should radiation shields be cleaned?

  Radiation shields should be inspected and cleaned at least annually, or more frequently in harsh environments, to remove dirt and debris that could affect airflow and reflectivity.