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be certain.
m
Clip-On Gages
Product Information
100-007-834 B
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Copyright information
Trademark information
Publication information
Manual Part Number Publication Date
100-007-834 A February 2001
100-007-834 B March 2008
© 2001, 2008 MTS Systems Corporation.
All rights reserved.
MTS is a registered trademark of MTS
Systems Corporation within the United
States. This trademark may be protected in
other countries.
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Contents
Contents 3
Technical Support 5
How to Get Technical Support 5
Before You Contact MTS 6
If You Contact MTS by Phone 7
Problem Submittal Form in MTS Manuals 9
Preface 11
Before You Begin 11
Conventions 12
Documentation Conventions 12
Introduction 15
Clip-On Gage Functional Description 17
About DC Conditioning 17
About Knife Edges 17
About Wheatstone Bridge 18
Transducer Calibration 19
Clip-On Gage Accessories 19
Contents
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Calibration 21
Calibration Overview 21
Certified Calibration 21
Gain 21
Delta K 22
Symmetrical versus Asymmetrical Clip-On Gages 22
How to Use a Calibration Block 23
How to Use a Calibration Stand 25
Installation 29
How to Prepare a Specimen 29
How to Connect the Cable 30
How to Attach the Clip-On Gage to a Specimen 32
Operation 33
About Sensor Zero 33
About Sensor Limits 33
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Contents
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Technical Support
How to Get Technical Support
Start with your manuals
The manuals supplied by MTS provide most of the information you
need to use and maintain your equipment. If your equipment includes
MTS software, look for online help and README files that contain
additional product information.
If you cannot find answers to your technical questions from these
sources, you can use the internet, e-mail, telephone, or fax to contact
MTS for assistance.
Technical support methods
MTS provides a full range of support services after your system is
installed. If you have any questions about a system or product, contact
MTS in one of the following ways.
MTS web site www.mts.com
The MTS web site gives you access to our technical support staff by
means of a Technical Support link:
www.mts.com > Contact Us > Service & Technical Support
E-mail
techsupport@mts.com
Telephone
MTS Call Center 800-328-2255
Weekdays 7:00 A.M. to 5:00 P.M., Central Time
Fax
952-937-4515
Please include “Technical Support” in the subject line.
Technical Support
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Before You Contact MTS
MTS can help you more efficiently if you have the following
information available when you contact us for support.
Know your site number and system number
The site number contains your company number and identifies your
equipment type (material testing, simulation, and so forth). The number
is usually written on a label on your MTS equipment before the system
leaves MTS. If you do not have or do not know your MTS site number,
contact your MTS sales engineer.
Example site number: 571167
When you have more than one MTS system, the system job number
identifies which system you are calling about. You can find your job
number in the papers sent to you when you ordered your system.
Example system number: US1.42460
Know information from prior technical assistance
If you have contacted MTS about this problem before, we can recall
your file. You will need to tell us the:
• MTS notification number
• Name of the person who helped you
Identify the problem
Describe the problem you are experiencing and know the answers to the
following questions:
• How long and how often has the problem been occurring?
• Can you reproduce the problem?
• Were any hardware or software changes made to the system before
the problem started?
• What are the model numbers of the suspect equipment?
• What model controller are you using (if applicable)?
• What test configuration are you using?
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Technical Support
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Know relevant computer information
If you are experiencing a computer problem, have the following
information available:
• Manufacturer’s name and model number
• Operating software type and service patch information
• Amount of system memory
• Amount of free space on the hard drive in which the application
resides
• Current status of hard-drive fragmentation
• Connection status to a corporate network
Know relevant software information
For software application problems, have the following information
available:
• The software application’s name, version number, build number,
and if available, software patch number. This information is
displayed briefly when you launch the application, and can
typically be found in the “About” selection in the “Help” menu.
• It is also helpful if the names of other non-MTS applications that
are running on your computer, such as anti-virus software, screen
savers, keyboard enhancers, print spoolers, and so forth are known
and available.
If You Contact MTS by Phone
Your call will be registered by a Call Center agent if you are calling
within the United States or Canada. Before connecting you with a
technical support specialist, the agent will ask you for your site number,
name, company, company address, and the phone number where you
can normally be reached.
If you are calling about an issue that has already been assigned a
notification number, please provide that number. You will be assigned a
unique notification number about any new issue.
Technical Support
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Identify system type
To assist the Call Center agent with connecting you to the most qualified
technical support specialist available, identify your system as one of the
following types:
• Electromechanical materials test system
• Hydromechanical materials test system
• Vehicle test system
• Vehicle component test system
• Aero test system
Be prepared to troubleshoot
Prepare yourself for troubleshooting while on the phone:
• Call from a telephone when you are close to the system so that you
can try implementing suggestions made over the phone.
• Have the original operating and application software media
available.
• If you are not familiar with all aspects of the equipment operation,
have an experienced user nearby to assist you.
Write down relevant information
Prepare yourself in case we need to call you back:
• Remember to ask for the notification number.
• Record the name of the person who helped you.
• Write down any specific instructions to be followed, such as data
recording or performance monitoring.
After you call
MTS logs and tracks all calls to ensure that you receive assistance and
that action is taken regarding your problem or request. If you have
questions about the status of your problem or have additional
information to report, please contact MTS again and provide your
original notification number.
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Technical Support
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Problem Submittal Form in MTS Manuals
Use the Problem Submittal Form to communicate problems you are
experiencing with your MTS software, hardware, manuals, or service
which have not been resolved to your satisfaction through the technical
support process. This form includes check boxes that allow you to
indicate the urgency of your problem and your expectation of an
acceptable response time. We guarantee a timely response—your
feedback is important to us.
The Problem Submittal Form can be accessed:
• In the back of many MTS manuals (postage paid form to be mailed
to MTS)
• www.mts.com > Contact Us > Problem Submittal Form (electronic
form to be e-mailed to MTS)
Technical Support
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Technical Support
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Preface
Before You Begin
Safety first!
Before you attempt to use your MTS product or system, read and
understand the Safety manual and any other safety information provided
with your system. Improper installation, operation, or maintenance of
MTS equipment in your test facility can result in hazardous conditions
that can cause severe personal injury or death and damage to your
equipment and specimen. Again, read and understand the safety
information provided with your system before you continue. It is very
important that you remain aware of hazards that apply to your system.
Other MTS manuals
In addition to this manual, you may receive additional MTS manuals in
paper or electronic form.
If you have purchased a test system, it may include an MTS System
Documentation CD. This CD contains an electronic copy of the MTS
manuals that pertain to your test system, including hydraulic and
mechanical component manuals, assembly drawings and parts lists, and
operation and preventive maintenance manuals. Controller and
application software manuals are typically included on the software CD
distribution disc(s).
Preface
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Conventions
DANGER
WARNING
CAUTION
Documentation Conventions
The following paragraphs describe some of the conventions that are
used in your MTS manuals.
Hazard conventions
As necessary, hazard notices may be embedded in this manual. These
notices contain safety information that is specific to the task to be
performed. Hazard notices immediately precede the step or procedure
that may lead to an associated hazard. Read all hazard notices carefully
and follow the directions that are given. Three different levels of hazard
notices may appear in your manuals. Following are examples of all
three levels.
Note For general safety information, see the safety information
provided with your system.
Danger notices indicate the presence of a hazard with a high level of risk
which, if ignored, will result in death, severe personal injury, or
substantial property damage.
Notes
12
Warning notices indicate the presence of a hazard with a medium level
of risk which, if ignored, can result in death, severe personal injury, or
substantial property damage.
Caution notices indicate the presence of a hazard with a low level of risk
which, if ignored, could cause moderate or minor personal injury,
equipment damage, or endanger test integrity.
Notes provide additional information about operating your system or
highlight easily overlooked items. For example:
Preface
Page 13
Note Resources that are put back on the hardware lists show up at
the end of the list.
Special terms
The first occurrence of special terms is shown in italics.
Illustrations
Illustrations appear in this manual to clarify text. It is important for you
to be aware that these illustrations are examples only and do not
necessarily represent your actual system configuration, test application,
or software.
Electronic manual conventions
This manual is available as an electronic document in the Portable
Document File (PDF) format. It can be viewed on any computer that has
Adobe Acrobat Reader installed.
Hypertext links
The electronic document has many hypertext links displayed in a blue
font. All blue words in the body text, along with all contents entries and
index page numbers, are hypertext links. When you click a hypertext
link, the application jumps to the corresponding topic.
Preface
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Preface
Page 15
Introduction
l
MODEL
632.02
l
MODEL
632.05
This manual describes the MTS Series 632 Clip-on Gage. Clip-on gages
are extensometers designed to sense crack openings. Opening
displacements are typically used to monitor crack growth in a specimen
during fracture mechanics testing.
Features
Several models of the clip-on displacement gage are available.
• Some clip-on displacement gages are designed specifically to meet
• Some MTS Fatigue Crack Growth Test Application clip-on
• Many of the clip-on gages can be used on a variety of specimens
Introduction
the ASTM E399 standard and are suitable for K
growth rates.
displacement gages are designed to meet ASTM standard fracture
mechanics tests for K
determination.
including compact tension, WOL, round compact tension, Cshaped, bend, and other common specimens or panels.
, JIc, crack growth, and R-curve
Ic
, JIc, and crack
Ic
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• Some clip-on displacement gages are designed for use at very high
frequencies. Because of their sensitivity, visual monitoring of the
specimen is not required. Crack growth will be apparent on the
readout.
What you need to know
This manual assumes that you know how to use your system controller.
See the appropriate manual for information about performing any
controller-related step in this manual’s procedures. You are expected to
know how to:
• Select a control mode.
• Manually adjust the actuator position.
• Zero a sensor output.
• Install a test specimen.
Related documentation
This manual covers topics that are common among all transducers.
Specific information about a given clip-on gage is available from the
drawings that are included with it.
Each clip-on gage includes the following documents:
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• An installation drawing provides the specifications for your clip-on
gage. It also includes detailed drawings and notes related to setting
up and installing the clip-on gage.
• A Final Inspection card provides information such as the serial
number, as-tested excitation voltage, and other performance data.
• An Extensometer Calibration Data sheet is included when MTS
calibrates the clip-on gage.
• You might have drawings for optional kits for your clip-on gage.
These drawings include specifications and installation information
for the given option.
• You might have a model application drawing that lists the family of
clip-on gages for the model number you purchased. It lists the
specification differences among the clip-on gage family. The
drawing also includes the part number of the installation drawing
for your clip-on gage and the wiring diagram of the connector.
This manual is designed to be used with these documents.
Introduction
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Clip-On Gage Functional Description
Δ
A clip-on gage (extensometer) is a sensor attached to a specimen that
measures a dimensional change (gage length or strain) that occurs in the
specimen while being tested. Clip-on gages use precision resistancetype strain gages bonded to a metallic element to form a Wheatstone
bridge circuit. Because they are DC devices, they require a DC
conditioner for signal processing.
About DC Conditioning
The transducer requires a DC conditioner to process the transducer
signal. A DC conditioner provides a DC excitation voltage to the
transducer. Any changes to the gage length of the transducer change the
excitation signal. The changed signal is output to the DC conditioner as
feedback. The DC conditioner processes the signal and makes it
available to the controller where the signal may be used.
About Knife Edges
Knife edges are mounted onto a specimen, or machined into a specimen.
Introduction
Typical Conditioning Circuit
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About Wheatstone Bridge
Feedback
Excitation
Sensor
Bridge
The axial transducer uses precision, resistance-type, foil strain gages
bonded to a metallic element to form a Wheatstone bridge. Two knife
edges on the transducer arms contact the specimen. Elongation or
compression of the specimen causes movement of the transducer arms.
This movement bends the metallic element, changing the resistance of
the strain gages. The change in the balance of the Wheatstone bridge
produces an electrical output that is proportional to the displacement of
the transducer arms.
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Introduction
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Transducer Calibration
Δ
The DC conditioner and the transducer signal must be calibrated.
Calibration ensures that the transducer signal accurately represents the
gage length measure by the transducer. Calibration involves adjusting
the excitation voltage and gain of the DC conditioner to achieve the
desired transducer signal. The purpose of calibration is to equate a
specific transducer displacement to a specific voltage. When the
transducer is calibrated, it is matched to a DC conditioner. If either
component of the matched pair is changed, recalibration is required.
Clip-On Gage Accessories
Accessories available for the transducers include the following:
• A Model 650.03 Extensometer Calibrator can help with the
local calibration of any transducer. An optional fixture for
clip-on gages is available for the calibrator.
• Extra sets of knife edges are available.
Introduction
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Introduction
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Calibration
This section describes how to calibrate a Product Name with a
controller. Calibration ensures the output from the clip-on gage
accurately represents the displacement measured by the clip-on gage.
Two adjustment methods are described.
Calibration Overview
The calibration process coordinates the interaction between the
transducer, a DC conditioning circuit, and a cable. Calibration of a
transducer is a two step process:
• First, a specific output of the conditioner is adjusted to a
specific displacement of the transducer. This is performed by
adjusting the excitation voltage and amplification (gain) of the
conditioner.
• The second step verifies of the output the transducer/
conditioner versus a known standard displacement over the
entire range of measurement.
Certified Calibration
Gain
Calibration
MTS Systems Corporation offers a transducer calibration service. The
service offers full calibration (including verification) of your transducer
to ASTM E83. Further information on the verification procedure can be
found in the two predominant standards for transducers, ASTM E83 and
ISO 9513.
The conditioner is designed to have an output of approximately ±10 V at
the full-scale displacement of the desired range. Most transducers may
be used with this conditioner to obtain full-scale ranges down to 10% of
the full travel range of the transducer. (Full-scale ranges of 5% may be
possible, but some increase in drift and noise will result.)
In most transducers, the best linearity is obtained by setting the gain
between 70% and 90% of the desired travel range instead of 100%. The
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adjustment procedures in this manual use 80% full scale as the reference
Actual Displacement
Full-Scale Range
--------------------------------------------------
⎝⎠
⎛⎞
10 V× Calculated Output=
value.
Delta K
Delta K is a feature of DC conditioners manufactured by MTS Systems
Corporation. Delta K compensates for differences in symmetry between
the positive and negative outputs of the transducer. Gain is usually
adjusted to calibrate the compression half of the transducer range. Use
Delta K to calibrate the tension half of the transducer range.
Symmetrical versus Asymmetrical Clip-On Gages
Some clip-on gages can have only positive output (tension only), some
transducers can have both positive and negative output (tension and
compression). It is also possible that the clip-on gage has asymmetrical
travel (such as +3 mm and -1 mm). It is important that you determine
the full scale travel range of the clip-on gage before proceeding.
For example
Suppose you have a transducer with an asymmetrical travel of +3 mm
and -1 mm. It is desired to adjust the conditioner to have a full-scale
output equal to the full travel range of the clip-on gage. In this case +3
mm would approximately equal +10 V, and -1 mm would have an
output of -3.3 volts. Gain would be adjusted so that -0.6 mm would
yield -2 volts, and delta k would be adjusted so that +2.4 mm would
yield +8 volts while adjustments to zero are made to keep the null
position of the clip-on gage at zero.
In all cases, the actual displacement should be used to determine the
calculated output.
Note It might be difficult to obtain a displacement value of exactly
80% full scale. In those cases, find a displacement that you can
achieve and calculate new conditioner output value for the
displacement. For example, suppose the calibration block is set
for 7.94 mm. Then your desired output would be 7.94 V.
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Calibration
Page 23
The following table shows the proper conditioner output for each clipon gage displacement of the preceding example.
.
% F
ULL SCALE TRAVEL OUTPUT
100% 3 mm +10 V DC
80% 2.4 mm +8 V DC
60% 1.8 mm +6 V DC
40% 1.2 mm +4 V DC
20% 0.6 mm +2 V DC
Zero 0 mm 0 V DC
-20% -0.6 mm -2 V DC
How to Use a Calibration Block
MTS recommends using a calibration block to establish the initial gain
setting of the conditioner. The calibration block is a metal block with
knife edges mounted to it or machined in it. Using multiple knife edges
allows you to adjust the gain for a variety of specific displacements.
Calibration
Use this procedure as a guideline to calibrate other clip-on gages.
1. Set up the controller.
Your test controller must be configured to use the clip-on gage
signal.
A. Connect the clip-on gage to your controller.
B. Monitor the excitation voltage.
C. Monitor the clip-on gage signal.
D. Prepare to use the calibration controls on your controller.
E. Adjust the excitation control to set the excitation to +6 V DC
or the voltage specified in the clip-on gage documentation.
2. Zero the conditioner output.
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The arms of the clip-on gage must be in the zero reference position.
This can be accomplished using a calibration block with the zero
reference set in it.
Adjust the zero control to set the clip-on gage signal to 0.00 V DC.
Note Several clip-on gages have asymmetrical outputs. This means
that the compression and tension outputs are not equal. Ensure
that you are aware of the maximum ratings of the clip-on gage
you are calibrating.
3. Adjust compression.
A. Install the clip-on gage on the calibration block so that the
clip-on gage arms are in the grooves that represent about 80%
compression displacement.
B. Adjust the gain control to set the clip-on gage signal to
-8 V DC (or 80% of your calculated output).
4. Readjust the zero and compression.
Repeat Step 2 and Step 3 until the zero and gain outputs can be
measured without readjustment.
5. Adjust tension.
Install the clip-on gage in the calibration block so that the arms are
in the 80% tension displacement position (or the maximum
positive travel).
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• If the clip-on gage signal is above +8 V DC (or your
calculated output), adjust the ΔK (delta K) control for a clipon gage signal of +8 V DC.
• If the clip-on gage signal is below +8 V DC (or your
calculated output), the ΔK adjustment cannot be made. Return
the ΔK adjustment to its original setting and use the gain
control to increase the voltage halfway from its present value
to +8 V DC (this splits the difference between compression
and tension).
This completes the initial gain adjustment procedure using a calibration
block.
Calibration
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How to Use a Calibration Stand
m
This method requires a tool such as the Model 650.03 Calibrator from
MTS Systems Corporation. Use this procedure as a guideline to
calibrate other clip-on gages.
Note The Model 650.03 Calibrator from MTS Systems Corporation
can be configured to accept any clip-on gage. Ensure that the
appropriate fixture is mounted to the calibrator and set it up for
the compressed gage length. The fixture for clip-on gages is
MTS part number 031-508-501.
1. Set up the controller.
Your test controller must be configured to use the clip-on gage
signal.
Calibration
A. Connect the clip-on gage to your controller.
B. Monitor the excitation voltage.
C. Monitor the clip-on gage signal.
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D. Attach the clip-on gage to the calibrator. This figure shows a
typical installation.
Each clip-on gage can use a variety of extensions,
attachments, and other mounting accessories.
E. Prepare to use the calibration controls on your controller.
F. Adjust the excitation control to set the excitation to +6 V DC
or the voltage specified in the clip-on gage documentation.
2. Zero the conditioner output.
The arms of the clip-on gage must be in the zero reference position
(which should be the compressed gage length).
Adjust the zero control to set the clip-on gage signal to 0.00 V DC.
Note Several clip-on gages have asymmetrical outputs. This means
that the compression and tension outputs are not equal. Ensure
that you are aware of the maximum ratings of the clip-on gage
you are calibrating.
3. Adjust compression.
A. Adjust the calibrator between zero and 100% compression of
the clip-on gage’s full-scale range three times. This exercises
the clip-on gage to remove any hysteresis.
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B. Adjust the calibrator for the 80% compression setting (or the
range being calibrated) and note the voltmeter reading.
– If the meter reading is less than -8 V DC you can adjust gain.
Adjust the gain control to set the clip-on gage signal to -8 V
DC (or 80% of your calculated output).
– If you cannot adjust the gain control to set the clip-on gage
signal to -8 V DC, you can change the excitation voltage.
4. Readjust the zero and compression.
Repeat Step 2 and Step 3 until the zero and gain outputs can be
measured without readjustment.
5. Adjust tension.
A. Adjust the calibrator between zero and 100% tension of the
clip-on gage’s full-scale range three times. This exercises the
clip-on gage to remove any hysteresis.
Calibration
Page 27
B. Adjust the calibrator for 80% tension (or for the maximum
positive travel) of the range you are calibrating.
– If the clip-on gage signal is above +8 V DC (or your
calculated output), adjust the ΔK (delta K) control for a clipon gage signal of +8 V DC.
– If the clip-on gage signal is below +8 V DC (or your
calculated output), the ΔK adjustment cannot be made. Return
the ΔK adjustment to its original setting and use the gain
control to increase the voltage halfway from its present value
to +8 V DC (this splits the difference between compression
and tension).
This completes the initial gain adjustment procedure using a calibration
stand.
Calibration
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Calibration
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Installation
WARNING
This section describes how to install a clip-on gage onto a prepared
specimen.
Handling the clip-on gage while it is selected as the active control
mode can cause the actuator to move unpredictably.
Unpredictable actuator movement can cause personnel injury or
damage to the test equipment.
Ensure that the clip-on gage is not active when handling it.
The shield of the Extensometer (pin E for PT style connector and pin A
for Amphenol style connector) must be connected to the controllers
chassis ground. This is typically accomplished by using a metal or
metalized plastic connector and a braided shielded cable from the
controller to the Extensometer cable, see MTS cable part numbers 50120-0xx PT style or 56-233-6xx Amphenol style for an example.
Post installation
After you have installed the clip-on gage you need to perform the
following:
• Connect the cable to your controller.
• Calibrate the clip-on gage.
How to Prepare a Specimen
The specimen must be prepared to accept the clip-on gage. The
following must be done to prepare the specimen for use with a clip-on
gage:
• The specimen size and shape must conform to standards.
• Holes must be drilled to accommodate the grips.
• A crack starter notch must be created according to standards.
Installation
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• Knife edges must be added to the specimen.
GL XXX
60°
The knife edges are mounted
onto the specimen
Knife
Alignment
Fixture
The knife edges
are machined into
the specimen.
Knife
Edges
The shape of the knife edges
can vary between models.
Grip Mounting Holes
Crack Starter Notch
– Depending on the model of the clip-on gage and the specimen
standard, knife edges are either machined into the specimen or
attached to the specimen.
– If the knife edges are attached to the specimen, use the
alignment fixture to establish the edge length and knife edge
alignment.
How to Connect the Cable
The clip-on gage cable connects to a controller via an extension cable.
The clip-on gage assembly includes a small cable and connector. An
extension cable is installed between the clip-on gage connector and the
system controller. Ensure that the clip-on gage is connected to the
appropriate controller connector. The controller connector must be
associated with a DC conditioning circuit. The following figure shows
the circuitry and connector pin assignments from the clip-on gage.
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Installation
Page 31
Clip-on Gage Electrical Connections
RED
GRN
BLK
WHT
+Excitation
-Excitation
A
D
C
B
F
E
-Output
+Output
Shield
Shunt
R1
Shunt
R2
1
2
3
4
350
W
Note The location of the shunt cal
resisters depend on the
controller being used.
• The location of the shunt resistors differs with each controller. See
your controller manual for more information about the shunt
calibration resistors.
• The location of the bridge balancing circuitry differs with each
controller. See your controller manual for the more information
about the bridge balancing circuitry.
• The cable attached to the clip-on gage can be from 660–1525 mm
(22–60 in) long. An extension cable or an adaptor cable may be
needed to reach the controller.
1. Attach the plastic connector holder, provided with the clip-on gage,
to the load unit column.
Installation
2. Connect the connector, attached to the cable extending from the
clip-on gage, to the mating connector on the appropriate system
cable.
Note An adapter cable (MTS part number 039-704-601) is available
which allows connection between the PT connector on the clipon gage cable and an Amphenol connector on an existing
system cable.
3. Mount the connector assembly in the plastic connector holder.
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How to Attach the Clip-On Gage to a Specimen
CAUTION
The knife edges
are machined into
the specimen.
The knife edges are
mounted to the specimen.
Refer to the drawings that came with the clip-on gage for any modelspecific information related to attaching the gage to a specimen.
Prerequisite
The specimen must be prepared to accept the gage. The specimen must
also be installed into the load unit or test machine.
Procedure
The clip-on gage clips between the knife edges on the specimen. The
following figure shows three types of attachment methods.
Attaching a clip-on gage to a specimen requires you to squeeze the
arms of the clip-on gage.
Over-compression of a clip-on gage will damage the unit.
Squeeze the arms of the clip-on gage just enough to engage the knife
edges. The clip-on gage drawing has an over travel specification.
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Installation
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Operation
Operation of any clip-on gage consists of zeroing the sensor output after
it has been attached to a specimen. It is also good practice to establish
sensor limits for the clip-on gage.
Prerequisite
Before operating the clip-on gage, the signal from the clip-on gage must
be calibrated. The clip-on gage must also already be attached to a
specimen and connected to a controller.
About Sensor Zero
The purpose of zeroing the sensor output is to identify the starting
position of the transducer to the system controller. A transducer usually
needs to be zeroed (or at least checked) after it has been installed.
For example, suppose the transducer is installed and it is not at its
calibrated zero position. The controller can be programmed to accept
the current output from the transducer as the zero output.
See your controller manual for information to establish the transducer
zero output signal. The electrical output of the transducer is adjusted so
that zero strain equals zero volts output.
About Sensor Limits
Sensor limits help protect a clip-on gage by establishing an operating
range within capacity of the transducer. Each clip-on gage has a travel
specification which can be used to define the operating range of the clipon gage. Refer to the drawings that came with the clip-on gage.
See your controller manual for information to establish the sensor
limits. The electrical output of the transducer is monitored by the
controller and can stop the test should the transducer exceed a defined
limit.
Operation
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Operation
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MTS Systems Corporation
14000 Technology Drive
Eden Prairie, Minnesota 55344-2290 USA
Toll Free Phone: 800-328-2255
(within the U.S. or Canada)
Phone: 952-937-4000
(outside the U.S. or Canada)
Fax: 952-937-4515
E-mail: info@mts.com
Internet: www.mts.com
ISO 9001 Certified QMS
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