THORLABS LFE1220W-EU, Руководство по установке

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LFE1220W-US, -EU, and -UK Laminar Flow Enclosures Chapter 1: Introduction
Rev A April 2021 Page 1
Chapter 1 Introduction
The LFE1220W-US (-EU and -UK) Laminar Flow Enclosure enables the creation of a clean environment around a Nexus
Optical Table. The system incorporates an enclosure frame with soft wall transparent curtain sides, enclosed ceiling, and
top mounted HEPA Fan Filter Unit (FFU). It also includes an Air Quality Monitor (AQM) which monitors continuously the
quality of the air inside the enclosure.
The LFE1220W-US (-EU and -UK) is intended to be used as a wrap around enclosure for 1.2 m x 2.0 m (4’ x 6’) Nexus
optical tables, enclosing only the table surface to reduce the space required for installation, minimize contamination, and
decrease the enclosed air volume to aid in the reduction of airflow turbulence. The HEPA filter units shipped with the –US,
-UK and –EU enclosures require a voltage of 115 V and 230 V respectively.
Caution
The LFE system has been designed to fit a 1.2 m x 2.0 m (4’ x 6’) Nexus optical table. Other table makes and
sizes may not be compatible.
Note. Intended use of the Air Quality Monitor
The Air Quality Monitor included in the LFE1220W system is intended for measuring the air inside the enclosure
to provide a good quantitive indication of air cleanliness. This allows a comparison of air cleanliness inside and
outside the enclosure, thereby reassuring the user that the HEPA unit is working properly.
It is not intended for taking accurate, absolute or calibrated measurements of particle numbers, particularly in
low concentrations. Neither should it be used for measuring particle numbers in the entire volume of air outside
the enclosure. It is not intended for use in ISO certification of clean rooms.