Ruska Instrument 7252 User manual

DIGITAL PRESSURE CONTROLLER
MODEL 7252
MODEL 7252
i
USER’S MANUAL
RUSKA INSTRUMENT CORPORATION
10311 WESTPARK DR., HOUSTON, TEXAS 77042
[phone] FAX: [phone]
e-mail: [email protected] http://www.Ruska.com
Release: 7252-1D01
Revision: A
Date: 09/16/03

WARRANTY
Ruska Instrument Corporation warrants its products to conform to or exceed the
specifications as set forth in its catalogs in use at the time of sale and reserves the right,
at its own discretion, without notice and without making similar changes in articles
previously manufactured, to make changes in materials, designs, finish, or specifications.
Ruska Instrument Corporation warrants products of its own factory against defects of
material or workmanship for a period of one year from date of shipment.
Liability of Ruska Instrument Corporation under this warranty shall be limited to
replacing, free of charge (FOB Houston, Texas), any such parts proving defective within
the period of this warranty, but will not be responsible for transportation charges or
consequential damages.
This warranty is not made for products manufactured by others which are illustrated and
described in Ruska catalogs or incorporated in Ruska products in essentially the same
form as supplied by the original manufacturer. However, Ruska Instrument Corporation
agrees to use its best efforts to have original suppliers make good their warranties.
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COPYRIGHT NOTICE
Copyright © 1997 by Ruska Instrument Corporation. All rights reserved. This document
may not be reproduced in part or in whole without the express written consent of Ruska
Instrument Corporation.
DISCLAIMER
No representations or warranties are made with respect to the contents of this user’s
manual. Further, Ruska Instrument Corporation reserves the right to revise this manual
and to make changes from time to time in the content hereof without obligation to notify
any person of such revision.
TRADEMARK NOTICE
® is a registered trademark of Ruska Instrument Corporation.
Trademarks or tradenames are subject to state and federal laws concerning their
unauthorized use or other infringements. The fact that the product marks or names in
this manual do not bear a trademark symbol DOES NOT mean that the product name or
mark is not registered as a trademark or tradename. Any queries concerning the
ownership or existence of any trademarks or tradenames mentioned in this manual
should be independently confirmed with the manufacturer or distributor of the product.
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REVISION NOTICE
RELEASE
NUMBER
REV. DATE OF
RELEASE
DESCRIPTION
7252-1D01 A 09/16/03 Original release. See DC/RO 23958.
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REVISION HISTORY
RELEASE 7252-1D01 Revision A (09/16/03)
Original release See DC/RO 23958.
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7252 – Change Language
Hold key for 5 seconds
mode
enter
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SAFETY SUMMARY
The following are general safety precautions that are not related to any specific
procedures and do not appear elsewhere in this publication. These are recommended
precautions that personnel must understand and apply during equipment operation and
maintenance to ensure safety and health and protection of property.
KEEP AWAY FROM LIVE CIRCUITS
Operating personnel must at all times observe safety regulations. Do not replace
components or make adjustments inside the equipment with the voltage supply
connected. Under certain conditions, dangerous potentials may exist when the power
control is in the off position due to charges retained by capacitors. To avoid injuries,
always remove power from, discharge, and ground a circuit before touching it.
DO NOT SERVICE OR ADJUST ALONE
Do not attempt internal service or adjustment unless another person capable of rendering
aid and resuscitation is present.
RESUSCITATION
Personnel working with or near dangerous voltages shall be familiar with modern
methods of resuscitation. Such information may be obtained from your local American
Medical Association.
ELECTRO STATIC DISCHARGE SENSITIVE PARTS
CAUTION: Electrostatic discharge sensitive (ESDS) is applied to low power, solid-state
parts which could be damaged or destroyed when exposed to discharges of static
electricity. Maintenance personnel are often not aware that an ESDS part has
been damaged or destroyed because electrostatic discharges at levels less than
4,000 volts cannot be seen, felt, or heard.
COMPRESSED GAS
Use of compressed gas can create an environment of propelled foreign matter. Pressure
system safety precautions apply to all ranges of pressure. Care must be taken during
testing to ensure that all pneumatic connections are properly and tightly made prior to
applying pressure. Personnel must wear eye protection to prevent injury.
PERSONAL PROTECTIVE EQUIPMENT
Wear eye protection approved for the materials and tools being used.
INERT GASES
Operation of pressure equipment may be accompanied by the discharge of inert gases to
the atmosphere. The result is a reduction of oxygen concentration. Therefore, it is
strongly suggested that exhaust gases not be trapped in the work area.
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TABLE OF CONTENTS
WARRANTY ............................................................................................................ -ii-
COPYRIGHT NOTICE ............................................................................................ -iii-
REVISION NOTICE ................................................................................................ -iv-
REVISION HISTORY................................................................................................ -v-
CHANGE LANGUAGE........................................................................................... -vi-
SAFETY SUMMARY ............................................................................................... -vii-
TABLE OF CONTENTS ..........................................................................................-viii-
SECTION 1.0: GENERAL INFORMATION
1.1 INTRODUCTION...............................................................................1-1
1.2 GENERAL INFORMATION ................................................................1-1
1.3 FEATURES .........................................................................................1-1
1.4 STANDARD EQUIPMENT & OPTIONS ..............................................1-3
SECTION 2.0: THEORY OF OPERATION
2.1 INTRODUCTION...............................................................................2-1
2.2 POWER SUPPLY.................................................................................2-2
2.3 ELECTRONICS MODULE ...................................................................2-2
2.3.1 BACK-PLANE BOARD................................................................2-2
2.3.2 MICROPROCESSOR BOARD......................................................2-2
2.3.3 DIGITAL CONTROL BOARD ......................................................2-3
2.3.4 IEEE-488 INTERFACE ................................................................2-3
2.3.5 FRONT PANEL ..........................................................................2-3
2.4 PNEUMATICS MODULE ....................................................................2-4
2.4.1 MEASURE MODE PNEUMATICS.................................................2-5
2.4.1.1 Reference Port..............................................................2-5
2.4.1.1.1 Barometric Sensor...........................................2-6
2.4.1.1.2 Absolute with Evacuated Reference - Optional ..2-6
2.4.1.2 Test Port ......................................................................2-6
2.4.1.2.1 Single Test Port Operation Option ...................2-6
2.4.1.3 Vent Procedure ............................................................2-7
2.4.2 CONTROL MODE PNEUMATICS ........................................... 2-7
2.4.2.1 Pressure Supply Port .....................................................2-7
2.4.2.2 Vacuum Supply (Exhaust) Port .......................................2-7
2.4.2.3 Pressure Control ..........................................................2-8
2.5 CONTROL STRATEGY .......................................................................2-8
2.5.1 INNER VS OUTER CONTROL LOOP ..........................................2-8
2.5.2 NORMAL MODE.......................................................................2-8
2.5.3 FAST MODE .............................................................................2-8
2.5.4 ALIGNMENT OF INNER LOOP WITH OUTER LOOP ...................2-9
2.5.5 PID CONTROL..........................................................................2-9
2.6 TRANSDUCER MODULE .................................................................2-10
2.6.1 QUARTZ BOURDON TUBE SENSOR (TRANSDUCER01) ............2-10
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2.6.2 SENSOR BOARD.....................................................................2-11
2.6.3 LINEARIZATION TERM.............................................................2-11
2.6.4 AUXILIARY SENSORS...............................................................2-12
2.6.4.1 Case Reference Vacuum Sensor - Option ....................2-12
2.7 SOFTWARE ...................................................................................2-12
2.7.1 SOFTWARE SAFETY CONTROLS ..............................................2-12
2.7.1.1 Preventing Operator Errors.........................................2-12
2.7.1.2 Pneumatic Errors........................................................2-12
2.7.1.3 Shutoffs .....................................................................2-12
2.7.1.4 Oven Control ............................................................2-12
2.7.1.5 Pressure Reading and Correction ................................2-13
SECTION 3.0: INSTALLATION
3.1 INTRODUCTION...............................................................................3-1
3.2 UNPACKING THE DPC .....................................................................3-1
3.3 CAUTIONS .....................................................................................3-2
3.4 POWERING UP THE DPC ..................................................................3-2
3.4.1 OBSERVING THE DPC’S FULL SCALE RATING ............................3-2
3.5 PNEUMATIC CONNECTIONS...........................................................3-2
3.5.1 PRESSURE SUPPLY PORT............................................................3-2
3.5.2 EXHAUST PORT ........................................................................3-3
3.5.2.1 Absolute Models ..........................................................3-3
3.5.3 TEST PORT................................................................................3-3
3.5.3.1 Single Test Port Operation - Option ..............................3-3
3.5.4 REFERENCE PORT .....................................................................3-4
3.5.5 VACUUM TRANSDUCER INSTALLATION ....................................3-5
3.5.6 VACUUM SENSOR OPTION......................................................3-6
SECTION 4.0: LOCAL OPERATION
4.1 TUTORIAL .....................................................................................4-3
4.1.1 SELECTING LANGUAGE ...........................................................4-6
4.1.2 SELECTING MODE OF OPERATION ..........................................4-6
4.1.2.1 Simulated Absolute Instruments.....................................4-6
4.2 MAIN MENU .....................................................................................4-7
4.3 CONTROLLING PRESSURE................................................................4-7
4.3.1 SETTING THE PRESSURE SETPOINT............................................4-8
4.3.2 ENTERING/EXITING CONTROL MODE......................................4-8
4.4 VENT .................................................................................................4-8
4.5 STEP | JOG .....................................................................................4-8
4.5.1 STEPPING.................................................................................4-9
4.5.1.1 Setting Step Size...........................................................4-9
4.5.2 JOGGING................................................................................4-9
4.6 MENU ...............................................................................................4-9
4.6.1 MENU | SETUP.......................................................................4-10
4.6.1.1 Menu | Setup - Limits.................................................4-10
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4.6.1.1.1 High Limit ....................................................4-10
4.6.1.1.2 Low Limit......................................................4-11
4.6.1.1.3 Auto Vent .....................................................4-11
4.6.1.1.4 Control Band................................................4-11
4.6.1.1.5 Control ........................................................4-12
4.6.1.1.6 Slew Rate .....................................................4-12
4.6.1.1.7 Slew Limit.....................................................4-12
4.6.1.1.8 Access..........................................................4-12
4.6.1.2 Menu | Setup - User...................................................4-12
4.6.1.2.1 Step Size ......................................................4-13
4.6.1.2.2 Bar Graph Maximum ....................................4-13
4.6.1.2.3 Ready Tolerance ...........................................4-13
4.6.1.2.4 Gas Head Pressure Correction.......................4-13
4.6.1.2.5 Atmosphere..................................................4-14
4.6.1.2.6 Pressure Filter ...............................................4-14
4.6.1.2.7 Changing the Number of Decimals................4-14
4.6.1.2.8 Key Click......................................................4-14
4.6.1.3 Menu | Setup - Units..................................................4-14
4.6.1.4 Menu | Setup - Remote ..............................................4-16
4.6.1.4.1 GPIB Address................................................4-16
4.6.1.4.2 Protocol........................................................4-16
4.6.1.4.3 Serial Interface Set-Up...................................4-16
4.6.1.5 Menu | Setup - System ...............................................4-16
4.6.1.5.1 Date | Time..................................................4-17
4.6.1.5.2 Reset ............................................................4-17
4.6.2 MENU | CALIBRATE ................................................................4-17
4.6.2.1 Calibration Password .................................................4-17
4.6.2.2 Zeroing .....................................................................4-18
4.6.3 MENU | PROGRAM - STORING A SEQUENCE IN MEMORY .....4-18
4.6.3.1 Preparing to Program.................................................4-19
4.6.3.2 Entering a New Program ............................................4-20
4.6.3.3 Automatically Generating a Program ..........................4-21
4.6.3.4 Changing the Name of a Program..............................4-22
4.6.3.5 Changing an Existing Program ...................................4-23
4.6.3.6 Changing the Configuration Stored with a Program.....4-24
4.6.3.7 Running a Program....................................................4-25
4.6.4 MENU | TEST .........................................................................4-25
4.6.4.1 Menu | Test - Sweep Test ...........................................4-26
4.6.4.2 Menu | Test - Self Test................................................4-27
4.6.4.3 Menu | Test - Remote Test ..........................................4-27
4.6.4.4 Menu | Test - Shop 1 .................................................4-27
4.6.4.5 Menu | Test - Control.................................................4-28
4.6.5 MENU | DISPLAY....................................................................4-28
4.6.5.1 Menu | Display - Blank ..............................................4-29
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