Electronics TSP-M Instruction Manual

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IM0124!2018-04!
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Electronics!Inc.!•!(574)!256-5001!•!www.electronics-inc.com!
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Table!of!Contents!
Introduction!to!Correlatio n !..................................................................................................................................!13!
The!Almen!Strips!and!Correlation!Holder!.............................................................................................................!13!
Examples!of!Correlation!.......................................................................................................................................!14!
Graph&1&-&3.26&A&to&1.15&Mini&A&....................................................................................................................&15!
Graph&2&-&3.25&A&to&1.25&Mini&A&....................................................................................................................&16!
Graph&3&–&3.5&A&to&1.25&Mini&A,&3.26&A&to&1.15&Mini&A&..................................................................................&17!
Graph&4&-&5.79&A&to&2.40&Mini&A,&5.95&A&to&2.46&Mini&A&................................................................................&18!
Graph&5&-&5.95&A&to&2.46&Mini&A&....................................................................................................................&19!
Graph&6&-&6.09&A&to&2.40&Mini&A&....................................................................................................................&20!
Graph&7&-&12.08&A&to&5.68&Mini&A,&18.40&Mini&N&...........................................................................................&21!
Graph&8&-&12.32&A&to&4.93&Mini&A&..................................................................................................................&22!
Graph&9&-&12.08&A&to&5.68&Mini&A&..................................................................................................................&23!
Compilation!of!Correlation!Data!..........................................................................................................................!24!
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Electronics!Inc.!•!(574)!256-5001!•!www.electronics-inc.com!
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Description!
The!model!TSP-M! Almen! Gage! is! manufactured!to! the! specifications!of! SAE& J442& Test&Strip,&Holder& and& Gage&for&
Shot& Peening.! It! is! a! precision! device! used! for! me as ur ing ! the! curvature! of! a! meta l! test! coupon! called! an! Almen!
mini-strip.!It!has!a!calibrated!electronic! digital!indicator!with!a! low-force! sp ind le! spring!to!provide!highly!accurate!
and!repeatable! measurements.! This!gage! will! provide! many! years! of! trouble-free! service! if! properly! maintained.! The!gage!should!be!calibrated,!the!indicator!performan c e! should!be!tested ,!and!the!su ppo rt!platform!checked!for!
wear!annually!or!more!frequently!if!conditions!warrant.!! !
The! gage! comes! with! two! (2)! batteries!with!a!life!expectancy!of!at!least!one!(1)! year.! The! batteries! can! be! easily! replaced!without!loss!of!calibration.!
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General!Information!
A!special!Zero!Block!(included)!will!set!the!digital!zero!reference.!
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Environment!
The! indicator! is! built! to! withstand! severe! use.! It! has! a! gasket-sealed! case,! a! hard! crystal! display! window! and! a!
durable!stem! assembly! to! resist! most! dust! and! fluids.!The! gage! should! never! be! immersed! in! liquid!as! this! will! cause! dam age! to! the! unit.! The! seals! and! boots! should!be!regularly!inspected!to! prevent! contamination.! The! dust!
cap!for!the! electronic! 4-pin!connector!should!always! be! in! place! whenever! an!output!cable!is! not! attached.! This! will!prevent!damage!to!the!connector.!Please!respect!the!recommended!temperature!ranges!shown!below.!
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Temperature!Range!
Storage:!
4°F!-!140°F!
-15.5°C!–!60°C!
Operation:!
60°F!-!90°F!
15.5°C!-!32°C!
The&magnet ic&base&secures&the&&
Zero&Block&for&easy&access&
The&Zero&Block&on&the&
&magnetic&base&
The&Zero&Block&&
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Control!Features!
Three!red!control!buttons!on!the!display!perform!these!user!functions:!
• ZERO/ON:! Turns! the! un it! “ON”.! It! can! also! be! used! to! set! the! Spindle! Starting!Position.! See! the ! “Trouble! Shooting! the! M odel! TSP- M”! section!for!
more!information!on!this!feature.!
• M/OFF:!This!button,!when!pushed!and!held!for!three!(3)!seconds,!turns!the!
unit!“OFF”.!!
• inch/mm:!Allows!the!selection!of!the!display!in!inches!or!millimeters.!
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Quick!Switch!From!MM!to!Inch!
SAE!J442!requires!Almen! gage! indicators! to! have!a!resolution! of! 0.001! mm;!therefore,!the!TSP-M! Almen!Gage!is!
factory!set!to!display!0.000!mm,!with!a!0 .0 01 !m m!resolution.! !
Pressing!the! inch/mm ! button,! changing! measurement! u nits! from! millimeters! to! inches,! results!in! a!five! (5) ! digit! display!(0.00000!inch)!with!a!resolution!of!0.00005!inch.!
! If!a!display!of!only!four!(4)!dig its !(0 .0 0 00 )!in !in c h es !is!p re fer red ,!u s e!th e !fo llo w in g !ste p s!t o !rep ro g ra m!the!indicator.!
1. Turn!on!the!TSP-M!by!pressing!ZERO/ON.!
2. Press!inch/mm!to!change!the!scale!to!inches!
3. Press!the!M/OFF!and!inch/mm!buttons!at!the!same!time!(M1!will!appear!on!the!bottom!left!of!the!display)!
4. Press!M/OFF!four!(4)!times!
5. Press!inch/mm!six!(6)!times!until!the!display!shows!0.0001!
6. Press!M/OFF!to!exit!the!programming!mode!
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Factory!Default!Settings!
Indicator!Polarity!
The! indicator! should! be! in! the! Reverse! M easurement! Direction! mode! as! indicated! by! “R”! at! the! bottom! of! the!
display.!This!allows! for!positive!numbers!to!be!shown!on!the!display!as!the! indicator!extends!into! the!concave!arc! of!the! Almen!strip.!If!the! “R”!is!not!shown,!see!the!“Trouble! Sh ooting! the! Model! TSP-M”!section!to!return!to! the!
Reverse!Measurement!Direction!Mode.! !
Resolution!
Metric!mode!resolution!is!factory!set!to!three!(3)!decimal!places!(e.g.,!0.600!mm).!If!the!inch!mode!is!required,!the!
resolution! will! be! set!at! five! (5)! places!(e.g.,!0.00240!inch)!by! default.! See! the! “Quick! Switch! from! MM! to! Inch”! section!above!to!change!the!resolution!to!only!four!(4)!places.!!
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Red&control&buttons&
Electronics!Inc.!•!(574)!256-5001!•!www.electronics-inc.com!
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The&small&side&of&the&Zero&Block&is&placed&
on&the&gage.&The&reading&is&0.000&mm.&
Measuring!the!Pre-Bow!of!a!New!(Unpeened)!Almen!Strip!
The!following!steps!should!be!performed!on!the!standard!Almen!strips!and!the!mini-strips.!
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1. Push!the!ZERO/ON!button!to!turn!the!gage!“ON”.!
2. Place! the! Zero! Block! on! the! gage! with! the! indicator! tip! touching! the! small! side! of! the! block.! Push! the! ZERO/ON!button!to!achieve!0.000!mm!in!the!display.!!
3. Place!a! new! (unpeened)! Almen! strip! onto! the! measurement! position.! Be ! sure! the! s trip ! touches! the! back! posts!and!is!centered!between!the!end!posts.!!
4. Read!and!record!the!pre-bow!(also!called!flatness).!!
5. Turn!the!strip!over!and!measure! the!opposite!side.!If!the!reading!from!either!side!exceeds!the!specification!
value,!discard!the!strip.!(See!Table!1!for!common!examples!of!acceptable!pre-bow).!
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Table!1.!Examples!of!common!industry!Almen!strip!requirements!for!maximum!pre-bow!of!unpeened!strip!
Specification!
Grade!
mm!
Inch!
AMS2432,!Shot!Peening,!Computer!Monitored!
A1-S™,!N1-S™!
±0.013!
±0.0005!
AMS2430,!Shot!Peening!
A-1™,!N-1™!
±0.025!
±0.0010!
J442,!Test!Strip,!Holder!and!Gage!for!Shot!Peening!
A-1™,!N-1™!
±0.025!
±0.0010!
MIL-S-13165!Shot!Peening!of!Metals!(Canceled)!
A-2™,!N-2™!
±0.038!
±0.0015!
An&unpeened&&
mini-strip&placed&on&
the&mini-strip&gage.&
An&unpeened&&
Standard&Almen&
strip&placed&on&the&
#2&Almen&gage.
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Electronics!Inc.!•!(574)!256-5001!•!www.electronics-inc.com!
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Measuring!the!Arc!Height!of!a!Peened!Almen!Strip!
The!following!steps!should!be!performed!on!the!standard!Almen!strips!and!the!mini-strips.!
! Step!One!–!Zero!the!Almen!Gage!
1. Push!the!ZERO/ON!button!to!turn!the!gage!“ON”.!!
2. Place! the! Zero! Block! on! the! gage! with! the! indicator! tip! touching!
the!small!side.!Push!the!ZERO/ON ! b u tto n! to! a ch ie ve ! 0 .00 0 ! mm!in! the!display.!
! Step!Two!–!Perform!Pre-Bow!Compensation!
If!your! shot! peening! pro c edure,! such!as!process! development! o r! system! capability! studies,! requires! higher! intensity! accuracy,! pre-bow!
compensation! may! be! used.! This! technique! can! provide! an! additional! reduction! in! process! uncertainty.! A ! pre-bow! compensation!ensures! that!
only!the!net!difference!in!arc!height!of!a! peened!Almen!strip!is!plotted!on! a!saturation!curve.!To!perform!pre-bow!compensation:!
1. Zero! the!Almen!gage!and!then!place!the! unpeen ed!Almen!strip!on! the!gage!and!record!its!value.!!
2. Be!sure!to!note!if!value!is!positive!or!negative!and!write!the!value! on!the!opposite!side!of!the!strip.!!
3. Do! not! peen! the! side! of! the! Almen! strip! with! your! handwritten! note.!!
4. A!positive! num ber! is!subtracted! from! the! arc!height!reading! after!the!strip!has!been!peened.!A!negative!num ber! is!added!
to! the! arc! height! reading! after! the! strip! has! been! peened.! For!example:!
a) If!the! pre-bow! is!+2! and! the! arc! height!reading! is! 10,!
the!adjusted!arc!height!reading!is!8!
b) If!the! pre-bow! is! -2! and! the! arc! height! reading! is! 10,!
the!adjusted!arc!height!reading!is!12!
! In! summary,! most! pee n in g ! a p p lica tio n s ! ca n ! t o ler at e! t h e! S A E! J442!
pre-bow!bias! of!±0.001”!for! N ! and! A!strips.!If!this!tolerance! level! is! too! high,! you! can! apply! the! pre-bow! compensation! discussed!
above.!! !
Step!Three!–!Measure!the!Arc!Height!
1. Place! the!peened! Almen! strip! onto! the! measurement! position! with! the!indicator! tip!touching!the!non-peened! side!(concave!side)!of!the!
strip.!Record! the!value! of!the! arc!height! shown! in! the! display! or,! if! using! pre-bow! compensation,! th e! arc! height!shown!in!the!display!with!the!pre-bow!compensation!applied.!
2. Remove!the!strip!and!place!it!once!again!on!the!gage.!Do!this!three!(3)!times!to!assure!an!accurate!reading.!!
3. When!finished,!push!and!hold!the! M/OFF! button!for! three!(3)!seconds!to! turn! the!gage!“OFF”.!(The! gage!
automatically!turns!“OFF”!if!it!is!not!active!for!15!minutes.)!
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Peened&mini-strip&placed&on&the&mini-
strip&gage.&The&reading&is&0.199&mm.&
Peened&standard&Almen&strip&placed&
on&the&Almen&gage.&
Electronics!Inc.!•!(574)!256-5001!•!www.electronics-inc.com!
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Battery&Low&message&
Changing!the!Batteries!
The! Almen! gage! has! a! battery! tray! that! holds! two! (2)! CR2450! lithium! batteries.! A!
warning!message!appears!in!the!gage’s!display!when!the!batteries!need!to!be!replaced.!! !
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To!change!the!batteries:! !
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Step!3.!Remove!the!expired!batteries!and!place!the!new!! batteries!positive!side!up!in!the!tray.!(The!current!Almen!!
gage!set-up!and!calibration!information!are!retained!when!! the!batteries!are!replaced.)!Place!the!battery!holder!in!!
the!battery!compartment!and!push!it!in!until!it!locks!into!! position.!
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Step!1.!Using!a!small!flat-blade!screwdriver,!carefully!
slide!the!blade!into!the!opening!and! release!the! battery!holder.!Do!NOT!remove!digital!indicator!from! the!gage.!
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Step!2.!Once!the!battery!holder!is!unlocked,!grasp!it!
with!your!fingers!and!pull!the!battery!holder!out.! !
Do!NOT!remove!the!digital!
indicator!from!the!gage!
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Electronics!Inc.!•!(574)!256-5001!•!www.electronics-inc.com!
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Calibration!
Periodic! calibration! of! the! Almen! gage! is! important! to! assure!
process!repeatability!and!accuracy.!The! gage’s!digital! indicator!
should! be! removed! and! calibrated! annually! or! sooner! if! it!
appears! to! be! damaged! or! inaccurate.! Use! of! a! standard!
calibration!stand!as!shown !is! recom m end ed!or!you!may! return!
the!gage!to!Electronics!Incorporated!for!service.!!
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The! digital! indicator!should!be!re-installed! with ! t h e! Zero!Block!
in!place! and ! the!physical! position!of! th e ! indicator! adjuste d ! on!
the! fram e! so! that! it! is!near!True!Spindle! Zero! ±0.025! mm.! This!
assures! that! the! indicator! is! in! the! preferred! accuracy! range.!
!See!the!section!titled!“Checking! or!Setting!the! Sp indle! Starting!
Position”!for!more!information.!
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Inspection!of!the!Gage!Head!
Examine!the!condition!of! the! back!post!for!wear,! which!may! interfere!with!proper!seating !o f!th e !strip !o n to !t h e!p la tfo rm.!!
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Federal&Calibration&Stand&
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