INTRODUCTION
IOM-077 Page 4 of 10
ALS-1; ALS-1HP; ALS-2; ALS-3; ALS-4HP
Rev: B
Last updated: 9/8/2009
1 GENERAL
1.1 Introduction
We appreciate your business and your choice of Welker products. The installation, operation, and
maintenance liability for this product becomes that of the purchaser at the time of receipt. Reading the
applicable Installation, Operation, and Maintenance (IOM) Manual prior to installation and operation of
this equipment is required for a full understanding of its application and performance prior to use. If you
have any questions, please call 1-800-776-7267 in the USA or 1-281-491-2331.
The following procedures have been written for use with standard Welker parts and equipment.
Assemblies hat have been modified may have additional requirements and specifications that are not listed
in this manual.
Notes, Warnings, and Cautions
Notes emphasize information or set it off from the surrounding text.
Caution messages appear before procedures that, if not observed, could result in
damage to equipment.
Warnings alert users to a specific procedure or practice that, if not followed
correctly, could cause personal injury.
1.2 Product description and specifications
The Welker Analyzer Liquid Shutoff is designed to be a final defense against liquid carryover into
injection valves, columns of gas chromatographs, and other analytical equipment. If liquids should enter
the device, it will push a ball against a seal, shutting off flow to the analyzer. The design of the unit allows
only gases to pass through freely. Table 1
