Tessonics RSWA User manual
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RSWA
Resistance Spot Weld Analyzer
User’s Guide
2008-02-05
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Tessonics Corporation has made every effort to ensure the accuracy and completeness
of this document; however, because ongoing efforts are made to continually improve
the capabilities of our products, we cannot guarantee the accuracy of the contents of
this document. We disclaim liability for errors, omissions, or future changes herein.
Tessonics and the Tessonics logo are trademarks of Tessonics Corporation.
Fujitsu and the Fujitsu logo are registered trademarks of Fujitsu Limited.
Intel and Pentium are registered trademarks of Intel Corporation.
Microso is a registered trademark of Microso Corporation. Windows 2000 and Win-
dows XP are trademarks of Microso Corporation.
All other trademarks mentioned herein are the property of their respective owners.
Copyright 2007 – Tessonics Corporation. All rights reserved. No part of this document
may be copied, reproduced, or translated, without the prior written consent of Tessonics
Corporation.
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Contents
1 Getting Started 1
1.1 Damage in Transit 1
1.2 Setting Up 1
2 Hardware 3
2.1 Overview 3
2.2 Probe 4
2.2.1 Usage 4
2.2.2 Cleaning and Maintenance 4
2.3 CPU Unit 5
2.3.1 Features 5
2.3.2 Status Indicators 6
2.3.3 System States 7
2.3.4 Screen Protector 8
2.3.5 Storing 9
2.3.6 Using the Hotpad 9
2.3.7 Using Hovering Mode 10
2.4 DSP Board 11
2.5 External Battery 12
2.5.1 PowerPad 80 12
2.5.2 Universal Battery 13
2.6 Charger/AC Adapter 14
2.7 So Case 14
3 Common Software Features 15
3.1 On-Screen Keyboard 15
3.2 Login Prompt 17
4 Launcher 19
4.1 Main Window 20
4.2 Logging In and Out 20
4.3 Turning Off 21
4.4 Switching Between Applications 22
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4.5 Accessing a USB Drive 22
4.6 Launcher Tabs 23
4.6.1 Settings Tab 24
5 Array Explorer 27
5.1 Main Window and Terminology 28
5.2 Button Area 29
5.3 C-Scan Area 30
5.4 A-Scan Area 31
5.5 Measurement History 32
5.6 Settings (Standard) 32
5.6.1 Cont. Mode 32
5.6.2 User Interface 32
5.7 Settings (Advanced Mode) 33
5.7.1 Algorithm 33
5.7.2 Hardware 33
5.8 Settings (Admin Mode) 34
5.8.1 Waveform 34
5.8.2 Adjust Signal 34
5.9 Information 34
5.10 Inspections 35
5.10.1 Custom Inspection 35
5.10.2 Part Inspection 38
5.10.3 Opening Inspections 40
A Specifications 43
Index 45
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Chapter 1
Getting Started
e Tessonics Resistance Spot Weld Analyzer (RSWA) has been designed and manufactured
as a high quality instrument. Under normal working conditions the RSWA will provide long,
trouble-free service.
1.1 Damage in Transit
Inspect the unit thoroughly and immediately upon receipt, for evidence of external or in-
ternal damage that may have occurred during shipment. Immediately notify the carrier
making the delivery of any damage, since the carrier is usually liable for damage in ship-
ment. Preserve packing materials, waybills, and other shipping documentation in order to
claim any damages. Aer notifying the carrier, contact Tessonics to receive assistance in
the damage claims, and provide replacement equipment, if necessary. Please note that your
shipping container is re-usable and may be used in the future when returning the unit for
recalibration or repair.
1.2 Setting Up
Check the list of supplied items. Verify that you have received all items listed on the RSWA
Packing List. If anything is missing, please contact Tessonics Sales and Service office.
Please check the battery charge gage aer receiving it. Refer to Section 2.5 on page 12 on
how to interpret the batteries fuel gage indicator.
Note: e external battery is shipped DISCONNECTED
Open the battery pocket cover of the so case and connect the battery connector to the
internal wiring cord connector. Connect the A/C adapter to the external battery and charge
the battery for at least 4 hours before using it for the first time.
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Chapter 2
Hardware
2.1 Overview
e Resistance Spot Weld Analyzer consists of several parts (Figure 2.1). e base unit con-
sists of a Windows-based tablet PC with an attached DSP board and installed soware. e
probe has a 52-element matrix transducer which connects to the DSP board. An external
battery provides up to 6 hours of run time when disconnected from a power source. A
charger/AC adapter provides power for simultaneous device operation and battery charg-
ing. A so case holds all these components together and provides protection against shock
and mechanical damage in an industrial environment.
Tablet PC
DSP board
Probe
External battery
Soft case
Figure 2.1 RSWA Hardware Components.
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2.2 Probe
e probe consists of a multiple coax cable and an ultrasonic transducer. is is the most
critical part of an RSWA. A malfunctioning or damaged transducer, as well as coax cable,
will make measurements inaccurate or non-existent. Figure 2.2 shows the major parts of the
probe.
Matrix transducer
Housing
Delay line
Coupler
Figure 2.2 Probe components.
2.2.1 Usage
e front face of the transducer is very thin and fragile. Check that there is no dust, grease,
or any other foreign particles between the front face of the probe and the delay line before
mounting the delay. e delay and the coupler are the only replaceable parts on the probe.
Please do not try to disassemble the protective case, take out the matrix transducer, or detach
the cable from the protective case as this will damage the probe beyond repair.
2.2.2 Cleaning and Maintenance
• Clean the front face and the thread of the transducer. If possible, use isopropyl alcohol,
dry using an air jet
• Clean the face of the delay which will be in contact with the front face of the transducer
and the collar using the same technique, dry with an air jet
• For operation, a very thin layer of a standard ultrasonic gel should be applied between
the transducer front face and the delay to provide sufficient acoustical contact
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