Uson 628 Manuel utilisateur

Document No. 690020 - Rev.3.0
Operator’s Manual

Portions of the software are copyright © 2017 Uson, L.P. and
copyright © 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
Product or trade names mentioned in this manual may be trademarks or
registered trademarks of their respective companies.
USON L.P. makes no representations or warranties with respect to the
contents or use of this manual and specifically disclaims any
express or implied warranties of merchantability or fitness for any purpose.
Uson has made every attempt to completely describe the operation of the
tester. Uson shall not be liable for technical or editorial errors or
omissions. USON L.P. reserves the right to revise this manual and to make
changes to its content, at any time, without obligation to notify any person
or entity of such revisions or changes.
This manual copyright © 2017 Uson L.P.
All rights reserved. Printed in the U.S.A.
Published by Uson L.P.
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U.S.A.
(281) 671-2000
(281) 671-2001 Fax
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Website:www.uson.com Website:www.uson.com Website:www.uson.com Website:www.uson.com

Contents i
Contents
Chapter 1: Safety 1-1
Introduction......................................................................................................................1-1
Using this Manual......................................................................................................1-1
Safety Alert Symbols ................................................................................................1-1
Safety Precautions (English)............................................................................................1-2
WEEE Material Disposal.................................................................................................1-3
Abbreviations...................................................................................................................1-4
EU Declaration of Conformity ........................................................................................1-5
China RoHS Declaration .................................................................................................1-6
Chapter 2: Introduction 2-1
Uson 628 Overview .........................................................................................................2-1
Specifications...................................................................................................................2-3
Front Panel Overview ......................................................................................................2-6
Front Panel.................................................................................................................2-6
Pneumatic Configuration .................................................................................................2-7
Component Operation................................................................................................2-8
Leak Test Cycle .........................................................................................................2-9
Chapter 3: Installation/Wiring 3-1
Installation .......................................................................................................................3-1
Unpacking .................................................................................................................3-1
Location .....................................................................................................................3-1
Wiring/Connections .........................................................................................................3-2
Rear Panel ..................................................................................................................3-2
Power Supply.............................................................................................................3-4
Power Supply Specifications ...............................................................................3-5
Connections .........................................................................................................3-5
Pneumatic Connections..............................................................................................3-6
Serial port connection ................................................................................................3-7
I/O Connector E .........................................................................................................3-7
Isolated Power Supply .........................................................................................3-8
Result & Ready Outputs ......................................................................................3-8
Start/Reset/Enable Inputs.....................................................................................3-9
Program Selection..............................................................................................3-10
Alarm/ End-of-Cycle Outputs............................................................................3-12

ii Uson 628 Operator’s Manual
Chapter 4: Getting Started 4-1
Introduction......................................................................................................................4-1
Turning the Tester On/Off ...............................................................................................4-2
Menu Navigation .............................................................................................................4-3
Front Panel Controls ..................................................................................................4-3
Key Pad......................................................................................................................4-3
Menu Toolbars...........................................................................................................4-4
Data............................................................................................................................4-4
Menu Selection ..........................................................................................................4-5
Parameter Entry Screen .............................................................................................4-5
Selection List Entry .............................................................................................4-6
Text Entry ............................................................................................................4-6
Numeric Entry......................................................................................................4-7
Logs Review ........................................................................................................4-7
Password Overview .......................................................................................................4-11
Setting a Password .........................................................................................................4-12
Password entry.........................................................................................................4-13
Forgot Password ......................................................................................................4-13
Menu Item Access Control ............................................................................................4-14
Chapter 5: Program Mode 5-1
Introduction......................................................................................................................5-1
Entering Program Mode...................................................................................................5-1
Program Categories..........................................................................................................5-2
Program Menu (submenus)........................................................................................5-3
Comp/Cal Menu.........................................................................................................5-6
Linking Menu ............................................................................................................5-6
Data Menu..................................................................................................................5-7
Date Time Menu ........................................................................................................5-8
Set Up Menu ..............................................................................................................5-8
Config Menu ............................................................................................................5-10
Gauge Sensor ...........................................................................................................5-10
Differential Sensor...................................................................................................5-11
Regulator Menu .......................................................................................................5-12
Hardware Menu .......................................................................................................5-12
Chapter 6: Run Mode 6-1
Overview..........................................................................................................................6-1
Operations..................................................................................................................6-1

Contents iii
Chapter 7: How To 7-1
Program Basic Test Parameters .......................................................................................7-1
Preliminary Tasks ......................................................................................................7-1
Set Pressure Units ......................................................................................................7-2
Set Test Program Details ...........................................................................................7-3
Perform a Test..................................................................................................................7-4
Test Results................................................................................................................7-7
Lamp Outputs ............................................................................................................7-8
Audit Results Output .................................................................................................7-8
Optimize a Program .........................................................................................................7-9
Fill Time ....................................................................................................................7-9
Stabilize Time ............................................................................................................7-9
Measure Time ............................................................................................................7-9
Reject Level .............................................................................................................7-10
Program Linking ............................................................................................................7-11
Program Linking Features .......................................................................................7-11
Fast Fill ..........................................................................................................................7-12
Chapter 8: Leak Calibration (Comp/Cal) 8-1
Overview..........................................................................................................................8-1
Performing a Leak Rate Calibration ................................................................................8-3
Calibration Test Program Setup.................................................................................8-3
Comp Test............................................................................................................8-3
Cal Test ................................................................................................................8-4
Chapter 9: Maintenance 9-1
Routine Maintenance .......................................................................................................9-1
Daily...........................................................................................................................9-1
Weekly .......................................................................................................................9-1
Cleaning ...........................................................................................................................9-1
Preventive Maintenance...................................................................................................9-2
Fuse Replacement ............................................................................................................9-2
Functional Check .............................................................................................................9-3
Introduction................................................................................................................9-3
Leak Tightness Test ...................................................................................................9-3
Leak Comparison Test .........................................................................................9-3
Software Update ..............................................................................................................9-4

iv Uson 628 Operator’s Manual
Chapter 10: Spares/Accessories 10-1
Spares.............................................................................................................................10-1
Accessories ....................................................................................................................10-2
Chapter 11: Appendix A -Sample Reports 11-1
Sample Reports ..............................................................................................................11-1

1
Chapter 1Preface
Please read this Operating Manual carefully before putting your 628 into service,
especially all safety related WARNINGS and CAUTIONS throughout the
manual.
About this manual
The purpose of this manual is to inform the operator how to connect, wire, operate,
maintain, and troubleshoot the 628 Tester.
Intended Use
This tester is intended to be used in an indoor, industrial environment by suitably
trained personnel.
Equipment Needed
• Master Part-Must be a known good part and be identical and of same material
as production parts (for calibration).
• Leak Master (for calibration).
Document History
• 11-30 -2017:Revision 1.0. Initial release.
• 03-01-2019: Revision 2.0. Added Electronic Regulator, Second fill step,
Program Linking option details (Software version 1.0.5).
• 03-08-2021: Revision 3.0 General improvements and corrections (Software
version 1.0.9).

Safety 1-1
1
Chapter 1Safety
1.1 Introduction
This section explains the warnings and cautions that should be observed before
using, wiring, installing, or operating the Uson 628.
Safety information is covered at relevant points throughout the manual. Please
read this manual in its entirety before installing/wiring or operating the instrument.
Should any point remain unclear, contact your supplier for assistance before
proceeding.
This tester is intended to be used in an industrial environment by suitably trained
personnel.
1.1.1 Using this Manual
The instructions in this manual are intended to assist qualified personnel for
correct installation, wiring, operating, adjusting, servicing, maintaining, and
troubleshooting of this tester.
1.1.2 Safety Alert Symbols
WARNING: Informs users of potentially hazardous situation, such as
personal injury or death and/or severe equipment damage, if instructions are
not followed.
CAUTION: Informs user of potential hazards to equipment if instructions are not
followed and may invalidate the warranty.
NOTE: Helps user perform task.

1-2 Uson 628 Operator’s Manual
1.2 Safety Precautions (English)
Electrical and Pneumatic (or air pressure) hazards are two primary concerns when
operating the Uson 628. Observe the following safety precautions before using this
product or associated equipment.
WARNING: If the equipment is used in a manner not specified in this manual,
the protection provided by the equipment may be impaired.
WARNING: Avoid Personal injury and/or Equipment Damage. Tested parts
must be secured in place mechanically or be enclosed/covered to avoid
personal injury or equipment damage. Securing tested parts with air couple
devices only, is NOT sufficient. Loss of power or air pressure, or multiple
reset/abort inputs while the vent step is running will immediately de-energize
any couple/clamp valves
WARNING: This instrument is capable of supplying high-pressure air. Before
commencing any component tests, ensure that the system is guarded to local
health and safety standards.
WARNING: Always wear eye protection when working with pressurized air.
Disconnect all pressure sources when working with internal components of
Uson equipment:
WARNING: The component to be tested, and the air supply line to the Uson
628, must be free from water or liquid residue before testing; otherwise
damage may be inflicted on the sensitive transducer within the instrument.
WARNING: Uson 628 operates on 24VDC from a power supply supplied by
Uson, which must be connected to an earthed (grounded) power supply of
100-240VAC 50/60Hz.
WARNING:.The covers on the equipment should be removed only by
personnel trained to avoid the risk of electric shock. The power supply to the
equipment must be switched off and disconnected before removing any
covers.

Safety 1-3
1.3 WEEE Material Disposal
Uson is committed to meeting the requirements of the European Union (EU) Waste
Electrical and Electronic Equipment (WEEE) Directive. Uson products that are
within the scope of the Directive are labelled with a crossed-out "wheelie-bin"
symbol, as required by the Directive. It indicates that the product was placed on the
market after August 13, 2005 and that end users should segregate the product from
other waste at end-of- life.
The detailed requirements vary considerably throughout the EU, and the Uson
WEEE compliance approach varies among countries.
WARNING: Do not substitute the fuse rating. Always use the correctly rated
fuse, failure to do so may be hazardous and can cause damage to the
equipment.
WARNING: Do not make or break external connectors or connections while
the Uson 628 is switched on.
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