EasyManua.ls Logo

Thermotron AST 8800 - User Manual

Default Icon
158 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
A Venturedyne, Ltd., Company
AST 8800
Instruction Manual
Revision 10: April 30, 2020

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the Thermotron AST 8800 and is the answer not in the manual?

Summary

Section 1: Setup

Introduction to the AST 8800

Overview of the AST 8800 chamber controller, highlighting its advanced features and ease of use.

Required components

Lists the essential components needed for the AST 8800 to operate.

Using the touch screen (optional)

Details on how to use the AST 8800's touch screen interface for operation.

File functions

Explains the file management capabilities using standard Windows dialog boxes.

AST 8800 file types

Describes the various file types used by the AST 8800 system.

Exporting AST 8800 data

Instructions on how to use the Export Data Wizard to export program and log files.

AST 8800 display controls

Overview of the main screen components and their functions.

Action buttons

Details the function of each action button available at the top of the screen.

Quick navigation buttons

Explains how to assign and use user-defined quick navigation buttons.

Function buttons

Describes the function of each button located on the right side of the screen.

Changing access levels and passwords

Guide on how to manage access levels and set passwords for the AST 8800.

Using the setup panels

Introduction to the various setup panels for configuring the AST 8800.

System Setup panel

Configuration options for general settings, alarms, and system time.

General settings

Details on configuring temperature scale, screen saver, and auto shut-off.

Setting process alarms

Instructions for setting high and low limits for process alarms.

Refrigeration options

Configuration settings related to the refrigeration system anticipator time.

Auxiliary cooling parameters

Settings for auxiliary cooling systems like LN2 or CO2.

System time

How to set and manage the system's real-time clock and date.

Power failure recovery

Configuration options for how the AST 8800 recovers after a power interruption.

Controlled stop

Enabling and configuring the controlled stop safety feature.

Actions to take when door is opened

Defines optional actions when the chamber door is opened.

Product Dewpoint Control

Configuration of the Product Dew Point Control (PDC) option.

HASS Options

Settings for Humidity and Accelerated Stress (HASS) testing options.

Alerts panel

Configuration of deviation alarms and response actions.

Vibration configuration panel

Settings for accelerometer inputs and vibration control parameters.

Accelerometer setup

Configuration of accelerometer types, sensitivity, and naming.

Multi-Control mode

Options for using multiple accelerometers for control signal generation.

Control & Analysis

Main options for vibration control and analysis, including PSD lines.

Control band

Defining a subset of the frequency spectrum for vibration control.

Vibration alarm

Setting limits to abort testing if vibration levels exceed defined thresholds.

PSD limits

Allows setting limits to abort tests if specific PSD spectrum portions exceed user-defined limits.

Control Parameters panel

Adjusting chamber performance parameters like proportional band and integral time.

Communication panel

Configuration of computer interface ports for communication.

Computer interface ports

Details on COM2 (RS-232), Network (TCP/IP), and Computer I/O ports.

COM2 (RS-232)

Configuration settings for the RS-232 serial communication port.

Network (TCP;IP)

Configuration settings for TCP/IP network communication.

Computer I;O

Configuration for the control module's optional computer I/O interface.

I;O diagnostics

Tools to examine current computer I/O communications and error logs.

Legacy instrumentation command compatibility

Information on compatibility with previous instrument command sets.

Legacy program slots

Setting up AST 8800 programs to occupy legacy instrument's program slots.

Service Messages panel

Creating and displaying custom messages based on system events.

System Events panel

Configuration of system events to monitor variables and control outputs.

Chan; Aux Names panel

Assigning descriptive names to auxiliaries, channels, and inputs.

Backup; Restore panel

Utilizing built-in functions for backing up and restoring system settings.

Section 2: Operation

Running in manual mode

Detailed steps for operating the AST 8800 in manual mode.

Manual mode values and options

Description of manual mode settings like Set Point, Ramp Rate, and deviation.

Program mode operation

Overview of operating the AST 8800 using programmed intervals.

Running a program

Instructions for selecting and starting a program profile.

Resuming a test

How to resume a test that was previously stopped.

Programmed cycling

Description of programming temperature and process variable cycles.

Creating or modifying a program

Steps for creating new programs or editing existing ones.

Using the program graph

How to view and customize program data using the graph interface.

Vibration analysis

Accessing and interpreting vibration analysis screens.

PSD (Power Spectral Density)

Explanation of the PSD plot and its analysis features.

Transmissibility (optional)

Viewing how enabled channels relate to each other via the Transmissibility tab.

Peak Probability (optional)

Displaying a histogram of peak and valley distribution.

Fatigue (optional)

Calculating and accumulating fatigue damage due to vibration stress.

Time Domain

Displaying oscilloscope-style readings of time domain signals.

Impactor status

Monitoring the status of impactor components for potential wear.

Calibration

Instructions for calibrating impactor readings to 0 psi.

Multi-zone vibration control

Operating the repetitive shock system with multiple vibration control loops.

AST 8800 multi-zone control configuration

Setting up and configuring multi-zone vibration control modes.

Using the Graph panel

Viewing graphical representations of chamber data and customizing the display.

Using the graph buttons

Navigating and modifying graph views using available buttons.

Graph setup

Configuring graph properties like colors, axis limits, and data display.

Using the Therm-Alarm panels

Overview of the Therm-Alarm system for product protection.

Therm-Alarm operating modes

Description of the different operating modes for the Therm-Alarm.

Viewing the Therm-Alarm settings

How to display current Therm-Alarm settings.

Changing the Therm-Alarm settings

Instructions for adjusting Therm-Alarm limits and parameters.

Alarm mute and reset mode functions

Managing audible alarms by muting or resetting the Therm-Alarm.

Muting or resetting the Therm-Alarm

Specific steps for muting or resetting an active Therm-Alarm.

Calibrating a Therm-Alarm

Procedure for calibrating the temperature and analog channels of a Therm-Alarm.

Temperature alarm calibration

Step-by-step guide for calibrating the temperature alarm.

Analog alarm calibration

Step-by-step guide for calibrating the analog alarm.

Vibration level monitor

Overview of the vibration level monitor and its purpose.

Specifications

Technical specifications for the vibration level monitor's input and power.

Setting up a vibration level monitor

Configuration of alarm limits, warning bands, and delay times.

Calibrating a vibration level monitor

Procedure for calibrating the vibration level monitor.

Verifying vibration level monitor accuracy

Steps to verify the accuracy of the vibration level monitor.

Section 3: System Information

Monitors panel

Monitoring chamber processes and setting alarm limits for monitor channels.

Refrigeration System panel

Diagnostic information for mechanical cooling and refrigeration monitoring.

Activity Log panel

Viewing and filtering system activities by date.

Control Module panel

Displaying schematics and live data for control module inputs and outputs.

Computer interface diagnostic panel

Examining computer I/O communications and error logs.

Loop back test

Testing the functionality of the COM2 serial port.

System Info panel

Displaying general system information like software version and configuration.

Section 4: CM2 Calibration

Calibration panels

Accessing verification and calibration functions for process variables.

Verifying analog inputs and analog outputs

Comparing raw input/output data with calibration equipment.

Calibrating analog input and analog output channels

Using wizards to calibrate analog input and output channels.

Calibrating DAQ thermocouple inputs and analog inputs and outputs

Calibrating inputs and outputs using the USB-DAQ option.

Adjusting process variable channels

Fine-tuning process variable channels with offsets and breakpoints.

Verifying Therm-Alarm inputs

Checking raw input data for Therm-Alarm calibration needs.

Verifying and calibrating accelerometer inputs

Verifying input channel readings and performing self-calibration.

Self-calibration

Performing internal self-calibration of the DAQ card for accuracy.

Section 5: Computer Interface

Overview

Introduction to the AST 8800 interface command set for host computer control.

Basic serial communication protocol

Describes the fundamental command structure and syntax for communication.

Multidrop address communication protocol (RS-485)

Details addressing parameters required for proper multidrop communication.

GPIB-specific commands

Commands and syntax for GPIB communication.

Service request (SRQ)

Capability for the AST 8800 to request service via the GPIB SRQ line.

Command syntax

Explains query and operation commands, including syntax rules.

Query commands

Commands used to request information from the controller.

Operation commands

Commands that instruct the AST 8800 to perform an action.

Functional command sets

Categorization of commands into functional groups.

Control commands

Commands that control the AST 8800's operating mode.

Programming commands

Commands used to write and load programs to the AST 8800.

Interface command descriptions

Detailed description of various interface commands.

ALRM

Command to send alarm status for selected channels.

AUXE

Command to send or load auxiliary settings.

TALM

Command to send or load Therm-Alarm settings.

Computer interface troubleshooting and error codes

Basic troubleshooting for computer interface issues.

Common computer interface problems and solutions

Solutions for common problems like communication failures.

Error codes

List and explanation of AST 8800 computer interface error codes.

Appendix B: SCI Capability

Running in manual mode

Configuring SCI Vibration Mode settings in manual mode.

Program mode operation

Selecting vibration modes within program mode for intervals.

Appendix C: Product Dew Point Control (PDC)

General description

How PDC operates to limit chamber dew point below product temperature.

User setup

Steps to set up the PDC option, including thermocouple placement.

Appendix D: Tuning Control Parameters

Proportional band parameters

Coarse adjustment of control algorithm using proportional band settings.

Integral time parameters

Fine adjustment to control algorithm using integral time parameters.

Tuning the proportional band and integral time parameters

Procedure for tuning proportional band and integral time for optimal control.

Appendix E: Tuning PTC Control Parameters

Gain parameters for PTC

Coarse adjustment of the PTC control algorithm using gain parameters.

Integral time parameters for PTC

Fine adjustment of PTC control algorithm using integral time parameters.

Tuning the PTC gain, integral time, and offset parameters

Procedure for tuning PTC parameters for optimal chamber performance.

Thermotron AST 8800 Specifications

General IconGeneral
Temperature Range-70°C to +180°C
Temperature Uniformity±0.5°C
Humidity Uniformity±2% RH
Humidity Ramp RateVariable
Communication InterfaceRS-232, Ethernet

Related product manuals