User guide

v
Foreword
Purpose and Scope
This manual contains the operation and maintenance instructions for the
American Magnetics, Inc. Model 187 Liquid Level Controller. The manual
outlines the instructions for instrument use in various system designs.
Since it is impossible to cover all possible system/sensor designs, the most
common configuration is discussed and the user is encouraged to contact
an authorized AMI Technical Support Representative for information
regarding specific configurations not explicitly covered in this manual.
Contents of This Manual
Introduction
introduces the reader to the functions and characteristics of
the instrument. It provides the primary illustrations of the front and rear
panel layouts as well as documenting the performance specifications.
Installation
describes how the instrument is unpacked and installed in
conjunction with ancillary equipment in a typical cryogenic system.
Operation
describes how the instrument is used to measure and control
liquid level.
All
instrument displays and controls are documented.
Remote Interface Reference
documents all remote commands and
queries available through the RS-232 and IEEE-488 interfaces. A quick-
reference summary of commands is provided as well as a detailed
description of each.
Service
provides guidelines to assist the user in troubleshooting possible
system and instrument malfunctions. Information for contacting AMI
Technical Support personnel is also provided.
The
Appendix
documents the rear panel connectors.