PASCO Brolight SE-9629 User manual

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;3B6=24=@;3/AC@7<53;B6316/@53B=;/AA@/B7==4B633:31B@=<
)63;3B6=27AA7;7:/@B=B6/BCA320G  )6=;A=<7<03/;=4
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B633:31B@=<A7A9<=E<>/7@=43:;6=:BH1=7:A>@=2C13A/C<74=@;
/<2;3/AC@/0:3;/5<3B71P3:2/B@756B/<5:3AB=B633:31B@=<03/;
)67A;/5<3B71P3:223Q31BAB633:31B@=<03/;7</17@1C:/@>/B6
)633;/>>/@/BCA/:A=6/A23Q31B7=<>:/B3AB6/B1/<03CA32B=
23;=<AB@/B3B633O31B=4/<3:31B@71P3:2=<B633:31B@=<03/;)67A
1/<03CA32/A/1=<P@;/B7=<=4B63<35/B7D316/@53=4B633:31B@=<
/<2/:A=B=23;=<AB@/B36=E/<=A17::=A1=>3E=@9A
C<7?C343/BC@3=4B633;BC037AB6/BB63A=193B@=B/B3A/::=E7<5
B633:31B@=<03/;B=03=@73<B32/B/<G/<5:34@=;I235@33A
E7B6@3A>31BB=B63;/5<3B71P3:24@=;B633:;6=:BH1=7:A.=C1/<
B63@34=@3@=B/B3B63BC03/<23F/;7<3B63D31B=@</BC@3=4B63
;/5<3B714=@13A=<;=D7<516/@532>/@B71:3A
(!3(!32.#,4$%$2.#,4$%$
N 3;)C03(
N 3:;6=:BH=7:A/<2/A3(
N )C</0:3=<AB/<B+=:B/53%=E3@(C>>:G(
N )C</0:3=<AB/<BC@@3<B%=E3@(C>>:G(
Product Guide
012-14265C
Electron Charge-to-Mass Ratio | 1

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,/@<7<5,/@<7<5 )=/D=72>=AA70:33:31B@71A6=19=@>3@A=</:7<8C@G
4=::=EB63A35C723:7<3A
N :3/<B633?C7>;3<B=<:GE7B6/A=4B2@G1:=B6
N 34=@3CA3D3@74GB6/BB63/>>/@/BCA7A<=B2/;/532
N =<=B27A1=<<31BB63>=E3@1=@2A/43BG5@=C<243/BC@3
N %:C57<B=/5@=C<2323/@B632=CB:3B
N =<=BCA3B63>@=2C1B7</<G;/<<3@B6/B7A<=BA>317P320GB63
;/<C4/1BC@3@
N =<=B7<AB/::AC0AB7BCB3>/@BA=@>3@4=@;/<GC</CB6=@7H32
;=27P1/B7=<B=B63>@=2C1B
N !7<3/<2C@@3<B%@=B31B7=<CA3A=@1=<B7<C32>@=B31B7=<
/5/7<ABP@3@3>:/13B63:7<34CA3/<2B631C@@3<B>@=B31B7=<4CA3
=<:GE7B64CA3A=4B63A>317P32BG>3/<2@/B7<5
N "/7<%=E3@/<2)3AB<>CB7A1=<<31B*<>:C57<AB@C;3<B4@=;
E/::=CB:3B@3;=D3>=E3@1=@2/<2@3;=D3/::>@=03A4@=;/::
B3@;7</:A034=@3A3@D717<5$<:G?C/:7P32A3@D713B@/7<32
>3@A=<<3:A6=C:2@3;=D3B631=D3@4@=;B637<AB@C;3<B
N =<=BCA3B633?C7>;3<B747B7A2/;/53234=@3G=CCA3B63
3?C7>;3<B7<A>31BB631/A3%/G>/@B71C:/@/BB3<B7=<B=B63
7<AC:/B7=<AC@@=C<27<5B631=<<31B=@A
N =<=BCA3B633?C7>;3<B747B=>3@/B3A/0<=@;/::G%@=B31B7=<
;/G037;>/7@32,63<7<2=C0B6/D3B633?C7>;3<BA3@D7132
N =<=B=>3@/B3B633?C7>;3<BE63@33F>:=A7D35/AD/>=@=@2CAB
7A>@3A3<B=<BCA37BC<23@E3B1=<27B7=<A
N =<=B/>>:G;=@3B6/<B63@/B32D=:B/53/A;/@932=<B63
/>>/@/BCA03BE33<B3@;7</:A=@03BE33</<GB3@;7</:/<23/@B6
5@=C<2
N ,63<A3@D717<5B633?C7>;3<BCA3=<:GA>317P32@3>:/13;3<B
>/@BA
N *A31/CB7=<E63<E=@97<5E7B6D=:B/53A/0=D3+@;A+
>3/9=@+(C16D=:B/53A>=A3/A6=196/H/@2
N )=/D=723:31B@71A6=192=<=BB=C16/<G0/@31=<2C1B=@E7B6
6/<2=@A97<
N 263@3B=:=1/:/<2</B7=</:A/43BG1=23A<27D72C/:>@=B31B7D3
3?C7>;3<B;CAB03CA32B=>@3D3<BA6=19/<2/@10:/AB7<8C@G
E63@36/H/@2=CA:7D31=<2C1B=@A/@33F>=A32
N (>317/:<=B34/2/<53@=CAD=:B/537A/>>:732B=/<7<>CBB3@;7</:
B63<B63A/;3D=:B/53;/G=11C@/B/::=B63@B3@;7</:A
!#+!#+'1'1/4.$).&/1-!3)/./4.$).&/1-!3)/.
<  )6=;A=<A6=E32B6/BB63;GAB3@7=CA1/B6=23@/GAE3@3
/1BC/::G<35/B7D3:G16/@532>/@B71:3AL636/227A1=D3@32B63
3:31B@=<<B63A/;3G3/@63;3/AC@32B63A>317P116/@533;=4
B631/B6=23@/G>/@B71:3A>@=D727<5B63P@AB;3/AC@3;3<B=4=<3=4
B634C<2/;3<B/:1=<AB/<BA=4B63C<7D3@A3)63A>317P116/@537A
23P<32/AB6316/@53>3@C<7B;/AA=4B63>/@B71:3)6=;A=<
27A1=D3@32B6/BB63D/:C3=43;E/A7<23>3<23<B=4B635/ACA32
/<2/:A=7<23>3<23<B=4B63</BC@3=4B633:31B@=23A
1).#)0,%/&3(%%70%1)-%.31).#)0,%/&3(%%70%1)-%.3
<B633;BC03B633:31B@=<A;=D3/:=<5/17@1C:/@>/B67</C<74=@;
;/5<3B71P3:2)63BC031=<B/7<A63:7C;5/A/B/>@317A3:GA3B
>@3AAC@3)635/A/B=;A/@37=<7H32/:=<5B63:3<5B6=4B6317@1C:/@
>/B62C3B=1=::7A7=<AE7B63:31B@=<AA/@3AC:BB63G/@33F17B32/<2
3;7B:756BB63@30G7<27@31B:G;/97<5B6317@1C:/@>/B6=4B633:31B@=<A
D7A70:3)63@/27CA=4B63>/B61/<B63<03;3/AC@3227@31B:GE7B6/
@C:3@(7<13B63/113:3@/B7<5D=:B/53 * =4B633:31B@=<5C</<2B63
;/5<3B71P3:2  /@39<=E<7B7A>=AA70:3B=1/:1C:/B3B63A>317P1
16/@53=4/<3:31B@=< 3  ; 4@=;B63@/27CA=4B6317@1C:/@>/B6 @ 
<3:31B@=<;=D7<5E7B6D3:=17BG D 7</27@31B7=<>3@>3<271C:/@B=/
C<74=@;;/5<3B71P3:2  3F>3@73<13A/!=@3<BH4=@13  7</27@31B7=<
>3@>3<271C:/@B=0=B6B63D3:=17BG/<2B63;/5<3B71P3:2
F=evB
E63@3 3 7AB6316/@53=</<3:31B@=<)67A57D3A@7A3B=/13<B@7>3B/:
4=@13=<B633:31B@=<7</17@1C:/@>/B6E7B6@/27CA@E63@3
F=mv2
r
/<2 ; 7AB63;/AA=4/<3:31B@=<)6CA
evB =mv2
r
)63D3:=17BG D 23>3<2A=<B63/113:3@/B7<5D=:B/53 * =4B633:31B@=<
5C<
v2=2Ue
m
)63@34=@3B63A>317P116/@53=4/<3:31B@=<7A57D3<0G
e
m=2U
B2r2
4E3;3/AC@3B63@/27CA=4B6317@1C:/@=@07B7<3/161/A34=@27O3@3<B
/113:3@/B7<5D=:B/53A * /<227O3@3<B;/5<3B71P3:2A  B63<
/11=@27<5B=3?C/B7=<B63;3/AC@32D/:C3A1/<03>:=BB327</5@/>6
=4 

@
/5/7<AB
* /A/AB@/756B:7<3B6@=C56B63=@757<E7B6A:=>3 3  ; 
2 | Electron Charge-to-Mass Ratio

22%-",822%-",8
22%-",%3(%"!2%22%-",%3(%"!2%
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3:;6=:BH1=7:A=<B=B63>:/B4=@;A=B6/BB63B3@;7</:A=<B63
1=7:A4/13B=E/@2B63=CBA723
 /AB3<B63B6@33AC>>=@B@=2A4@=;B63;=C<B7<56/@2E/@3
03BE33<B63BE=3:;6=:BH1=7:A
 "=C<BB63"7@@=@32(1/:3=<=<3=4B633:;6=:BH=7:AA=B6/B
B63;7@@=@@3Q31BAB=E/@2B633;BC031=7:)756B3<B63A1@3EA
=<B633<2A=4B63"7@@=@32(1/:3B=6=:27B7<>:/13=<B631=7:
 =:27<5B633;BC030G7BA0/A3/:75<B63B/0=<B63BC03E7B6
B63<=B167<B63A=193B)C@<B63BC037<B63A=193BC<B7:B63B/0
A:7>A7<B=B63<=B16B63<>CA6B63BC037<B=B63A=193B"/93AC@3
B6/BB63BC037AP@;:G7<>:/13
,/@<7<5,/@<7<5 D=72B=C167<5B635:/AA0C:0=4B63BC03=<=B
3F>=A3B63BC03B=/<G;316/<71/:AB@3AA=@AB@/7<)=C16=<:G
B63>:/AB71>/@B03:=EB635:/AA0C:0/<2:3E7B61/@3
/..%#3#!",%2!.$#/1/..%#3#!",%2!.$#/1$2$2
#'#' 756+=:B/537A/>>:732B=B633;)C03D=721=<B/1B
E7B6/<G>/@B=4B630=2G
N $<:GCA3A6@=C232>/B161=@2A4=@1=<<31B7=<A
N "/93AC@3B6/BB63>=E3@AC>>:73A/@3$034=@3;/97<5B63
1=<<31B7=<A
N "/93AC@3B6/BB63>=E3@AC>>:73A/@3$034=@37<AB/::7<5=@
@3>:/17<5B633;BC03
;>=@B/<B;>=@B/<B "/93AC@3B6/BD=:B/53AE7B16=<B63>=E3@
AC>>:73A7AA3B4=@G=C@D=:B/53:3D3:
#=B3#=B3 34=@31=<<31B7<5/<G1=@2A=@1/0:3A03AC@3B6/B/::
>=E3@AE7B163A=<B63%=E3@(C>>:73A/@37<B63$>=A7B7=</<2
/::D=:B/531=<B@=:A/@3BC@<324C::G1=C<B3@1:=19E7A3
 $<B63)C</0:3=<AB/<B+=:B/53%=E3@(C>>:G1=<<31B
B63>=A7B7D3B3@;7</:=4B63 ++ =CB>CBB=B63 113:3@/B7<5113:3@/B7<5
+=:B/53+=:B/53 >=A7B7D3B3@;7</:=<B63>:/B4=@;=<<31BB63<35/B7D3
B3@;7</:=4B63+=CB>CB=4B63>=E3@AC>>:GB=B63
113:3@/B7<5+=:B/53113:3@/B7<5+=:B/53 <35/B7D3B3@;7</:
 $<B63)C</0:3=<AB/<BC@@3<B%=E3@(C>>:G1=<<31B
0=B6B3@;7</:A=4B63 ++ =CB>CBB=B63 7:/;3<B7:/;3<B B3@;7</:A=<
B63>:/B4=@;
 =<<31BB633:;6=:BH=7:A7<A3@73AE7B6B63)C</0:3
=<AB/<BC@@3<B%=E3@(C>>:G
/ $<B63>=E3@AC>>:G1=<<31BB63 >=A7B7D3 B3@;7</:=4B63 
 =CB>CBB=B63 @32 B3@;7</:=<B63 4@=<B3:;6=:BH=7:4@=<B3:;6=:BH=7:
0 =<<31BB63 0:/19 B3@;7</:=4B63 4@=<B3:;6=:BH=7:4@=<B3:;6=:BH=7: B=B63
0:/19 B3@;7</:=4B63 0/193:;6=:BH=7:0/193:;6=:BH=7:
1 =<<31BB63 @32 B3@;7</:=4B63 0/193:;6=:BH=7:0/193:;6=:BH=7: B=B63
<35/B7D3 B3@;7</:=4B63  =CB>CB=<B63>=E3@AC>>:G
 =<<31BB63>=E3@1=@2AB=B63>=E3@AC>>:73A/<21=<<31BB63
>=E3@AC>>:73AB=/<3:31B@71/:=CB:3B
Electron Charge-to-Mass Ratio | 3

70%1)-%.30170%1)-%.301/#%$41/#%$41%%
$*4235$*4235/,3!'%2!.$#411/,3!'%2!.$#411%.3%.3
#=B3#=B3 34=@3AE7B167<5=<B63>=E3@03AC@3B6/B/::>=E3@
AE7B163A=<B63%=E3@(C>>:73A/@37<B63$>=A7B7=</<2/::
D=:B/531=<B@=:A/@3BC@<324C::G1=C<B3@1:=19E7A3
 $<B63)C</0:3=<AB/<B+=:B/53%=E3@(C>>:GA3BB63
+=:B/53'/<53(E7B16B= K+K+ 
 =@0=B6>=E3@AC>>:73A>CA67<B63%=E3@(E7B16B=B63$#
>=A7B7=<
 ::=EB63P:/;3<BB=63/BC>4=@/0=CB;7<CB3A
 $<B63)C</0:3=<AB/<B+=:B/53%=E3@(C>>:GA3BB63
113:3@/B7<5+=:B/53B=+
 =<<31B/E7@303BE33<B63 113:3@/B7<5+=:B/53113:3@/B7<5+=:B/53 >=A7B7D3
B3@;7</:B=B63 3Q31B7=<%:/B3A3Q31B7=<%:/B3A *>>3@ B3@;7</:B=;/93B63
3:31B@=<03/;/>>3/@
 $<B63)C</0:3=<AB/<BC@@3<B%=E3@(C>>:G7<1@3/A3B63
1C@@3<BB=B633:;6=:BH1=7:A,/B16B633:31B@=<03/;/<2
16319B6/BB633:31B@=<03/;1C@D3AC>E/@2=<B7<C37<1@3/A7<5
B631C@@3<BC<B7:B633:31B@=<03/;4=@;A/1:=A3217@1:3
◦4B633:31B@=<03/;2=3A<=B23Q31B@3D3@A3B63>=:/@7BG=4
=<3=4B633:;6=:BH1=7:AA=B6/B1C@@3<B>/AA3AB6@=C560=B6
1=7:A7<B63A/;327@31B7=<
◦4B633:31B@=<03/;23Q31BA2=E<E/@2AE/>B631=<<31B7=<A
=<B63=CB>CBB3@;7</:A=<B63%=E3@(C>>:G
◦4B633:31B@=<03/;4=@;A/A>7@/:@=B/B3B63BC03=<B63
>:/B4=@;C<B7:/1:=A3217@1:37A4=@;32.=C;/G/:A=<332B=
@=B/B3B63>:/B4=@;B=B63@756B=@:34BB=/:75<B63;/5<3B71
P3:253<3@/B320GB633:;6=:BH1=7:AE7B6B63;/5<3B71P3:2
=4/@B6
 7A1=<<31BB63E7@303BE33< 113:3@/B7<5+=:B/53113:3@/B7<5+=:B/53 >=A7B7D3
B3@;7</:B=B63 3Q31B7=<%:/B3A3Q31B7=<%:/B3A *>>3@ B3@;7</:
 $<%=E3@(C>>:G/28CABB63D=:B/53=CB>CBB=B63113:3@/B7<5
+=:B/53B==>B7;7H3B634=1CA/<20@756B<3AA=4B633:31B@=<
03/;
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 '3/2B63D=:B;3B3@/<2@31=@2B63113:3@/B7=<+=:B/53 * 7<)/0:3
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BC03/BB63;7@@=@32A1/:3)=/D=72>/@/::/F3@@=@A;=D3G=C@
63/2B=/:75<B633:31B@=<03/;7<B63BC03E7B6B63@3Q31B7=<=4
B6303/;/AG=CA337B7<B63;7@@=@32A1/:3"3/AC@3B63@/27CA
=4B633:31B@=<03/;/AG=CA337B=<0=B6A723A=4B63A1/:3/<2
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D=:B/53A/<21C@@3<BB6@=C56B633:;6=:BH1=7:A
#=B3#=B3 4G=C:=A3B633:31B@=<03/;E67:3/28CAB7<5B63
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G=C3F>31B
4 | Electron Charge-to-Mass Ratio

!-0,%$!3!!-0,%$!3!
!",%  !-0,%!3!
      
    J 
    J 
    J 
    J 
    J 
42%142%1%0,!#%-%.3%0,!#%-%.3
,/@<7<5,/@<7<5 )=@32C13B63@7A9=43:31B@71A6=19=@2/;/53B=B63
7<AB@C;3<BBC@<B63>=E3@AE7B16$/<227A1=<<31BB63>=E3@
1=@2034=@3@3>:/17<5/4CA3
 7A1=<<31BB63>=E3@1=@24@=;B637<AB@C;3<B
 $>3<B634CA31=D3@/<2@3;=D3B634CA3)634CA37A7<A723/B@/G
/0=D3B63>=E3@1=@2A=193B
 *A3/A;/::A1@3E2@7D3@=@=B63@B==:B=>@GB63B@/G=>3<
 '3>:/13B634CA3E7B6B63A/;3BG>3=44CA3+)$<3
A>/@34CA37A7<1:C2327<A723B63B@/G
 '31=<<31BB63>=E3@1=@2/<2BC@<=<B637<AB@C;3<B
0%#)9#!3)/.2!.$!##%22/1)%20%#)9#!3)/.2!.$!##%22/1)%2
+7A7BB63>@=2C1B>/53/B >/A1=1=;>@=2C1B(>/A1=1=;>@=2C1B( B=D73EB63
A>317P1/B7=<A/<23F>:=@3/113AA=@73AF>3@7;3<BP:3A/<2AC>>=@B
2=1C;3<BA1/</:A=034=C<2=<B63>@=2C1B>/53
)-)3%$6!11)-)3%$6!11!.38!.$,)-)3!3)/./&,)!"),)38!.38!.$,)-)3!3)/./&,)!"),)38
)67A@=:756B>@=2C1B7A4@334@=;23431BA7<;/B3@7/:/<2
E=@9;/<A67>4=@=<3G3/@4@=;B632/B3=4>C@16/A3)67AE/@@/<BG
2=3A<=B1=D3@4CA3A=@2/;/534@=;/11723<B<35:31B;7ACA3
/:B3@/B7=<1=<B/;7</B7=<=@/0<=@;/:1=<27B7=<A=4=>3@/B7=<=@
6/<2:7<5'3A3::3@A/@3<=B/CB6=@7H32B=3FB3<2/<G=B63@E/@@/<BG
=<@=:756BMA036/:4)==0B/7<A3@D7132C@7<5B63E/@@/<BG>3@7=2
@3BC@<B63C<7BB=>=7<B=4>C@16/A3E7B6/23A1@7>B7=<=4B63>@=0:3;
)(,''#).(.$*'$#!.'".#$$)',''#)(
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"%!'$!)(#$)!!$'#.(%!#')
##)!$'$#(&*#)!"($'!$((('(#
'$"#.*($')$'.(7<13A=;3AB/B3A=@1=C<B@73A2=<=B
/::=EB633F1:CA7=<=@:7;7B/B7=<=4/<7;>:732E/@@/<BG=@=4
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%#(.)#!,400/1%#(.)#!,400/133
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AB/O7A@3/2GB=>@=D723/AA7AB/<13E7B6B67A=@/<G=B63@%($
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%6=<3<B3@</B7=</: 
$<:7<3 >/A1=1=;AC>>=@B>/A1=1=;AC>>=@B
11/$4#3%.$/&,)&/$4#3%.$/&,)&%$)20/2!,).2314#3)/.2%$)20/2!,).2314#3)/.2
)67A3:31B@=<71>@=2C1B7AAC0831BB=27A>=A/:/<2@31G1:7<5@35C:/B7=<AB6/BD/@G0G
1=C<B@G/<2@357=<B7AG=C@@3A>=<A707:7BGB=@31G1:3G=C@3:31B@=<713?C7>;3<B>3@
G=C@:=1/:3<D7@=<;3<B/::/EA/<2@35C:/B7=<AB=3<AC@3B6/B7BE7::03@31G1:327</
;/<<3@B6/B>@=B31BA6C;/<63/:B6/<2B633<D7@=<;3<B)=P<2=CBE63@3G=C1/<
2@=>=OG=C@E/AB33?C7>;3<B4=@@31G1:7<5>:3/A31=<B/1BG=C@:=1/:E/AB3@31G1:3
=@27A>=A/:A3@D713=@B63>:/13E63@3G=C>C@16/A32B63>@=2C1B
)63C@=>3/<*<7=<,,/AB3:31B@=<71/<2:31B@71/:?C7>;3<BAG;0=:=<B63
>@=2C1B=@7BA>/19/57<57<271/B3AB6/BB67A>@=2C1B;CAB<=B0327A>=A32=47</AB/<2/@2
E/AB31=<B/7<3@
Electron Charge-to-Mass Ratio | 5