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Signal Processor
User Guide
LMG AE
4.5 Quench Rate Operation (Requires AET/AQT)
4.5.1 Introduction
This document is intended to provide only the additional information
required to configure and operate the LMG
AE
processor for quench
rate measurements.
The LMG
AE
’s new maths function allows the user to calculate dynamically
the quench rate of moving extruded aluminium section, without the need for
contact thermocouples or additional external processor or computers.
The quench rate can be configured in two different modes;
Automatic
and
Manual.
Automatic Mode:
In this mode three I/O channels are required.
The LMG
AE
calculates the quench rate from two independently configured
thermometer channels and a remote, on-line, linear-scaled, speed sensor
channel.
The System requirements are that three I/O channels plus a Maths Card must
be fitted. The last channel card fitted (e.g. Channel C or D) must be a System
4 type card.
Manual Mode:
In this mode two I/O channels are required.
The LMG calculates the quench rate from two independently configured
thermometer channels, with the user entering the fixed speed value manually
via the LMG
AE
’s menu.
The system requirements are that two I/O channels plus a Maths Card must
be fitted.
NOTE
The speed sensor
must
be configured as the last channel (i.e. in a three
channel system then it must be C, in a four channel system it must be D)
and its range (4 to 20mA)
must
be scaled to match one of the pre-defined
ranges - otherwise incorrect quench rates will be calculated.
Summary of Contents for Landmark Graphic AE
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