UM-11 Multimeter : operating instructiions

U M ^ l l

ÍVIULTSIW ¹ ETEP ¹

OPERATING

INSTRUCTIONS

F E A T U R E S

J. F u ll m e ter o v erlo a d p ro te c tio n p ro v id e d e le c tro n ic o lfy w ith c ir c u it fu s e for othe r c ir c u it e le m e n t.

2. F ric tio n fre e p a te n te d ta u t band suspension* movement re s u lts in o u ts ta n d in g shock a b s o rp tio n c h a ra c te ris tic s together w ith a b so lu te freedom from p o in te r " s t i c k i n e s s " over lif e o f m ovem ent.

3 . V e ry low rotary s w itc h c o n ta c t re s is ta n c e due to s p e c ia l fop q u o iity Component in co rp o rate d .

4. F re q u en c y c h a ra c te ris tic s e x c e lle n t due to use o f m atched " S to re o f the A r t " s em iconductor com ponents, not s eleniu m r e c tif ie r s . 5. D C Input P o la r ity s w itc h p ro v id e d . M easurem ents p o s s ib le w ith un­

known input p o la rity .

6 . C a rry handle p ro v id ed . L/sing th is , m eter can be in c lin e d to cny de­

s ire d a n g le for b e s t re ad in g .

7. M e te r m e cha nica l " Z e r o A d ju s t" control o f unique d e s ig n . A llo w s fin g e r a d ju stm e n t of m e c h a n ic a l ze ro w ith o u t tools of cgy d e s c rip tio n .

8- 1 00 .10 00 n / Y U L T R A S E N S IT IY IT Y for D C v o lta g e m easurem ents, 3 1 ,6 0 0 0 / V for A C v o lta g e m easurem ent o ffe rs the h ig h e s t s e n s itiv ity c o u p led w ith lo w e s t c ir c u it lo ad in g o f any instrum ent a v o ila b le in the w o rld m a rk e t.

9. 39 m eosuring ra n g e *

1 0 .S ingle rotory s w itc h far ra n g e s e le c tio n

11. L e g ib le e as y to read s c a le w ith s c a le len g th o f 100 mm.

12. Seporote com partm ent for b o tte rie s . O v e rlo a d p ro te c tio n fuse plus spare fu s e e x te n d optimum u s er v e r s a t ilit y for quick fu s e replacem ent w ith o u t n e c e s s ity o f opening in strum ent.

13. O u ts ta n d in g a e s th e tic s . In strum ent is ultram odern in tw o -to n e case.

T h is w i ll h a rm o n ize w ith ony te c h n ic a l d ecor.

74. T op a c c u ra c y . 2 .0 % for D C v o lta g e and current, 3 . 0 '/f for A C v o lt­

a g e and cu rren t and 2 0 % for re s is ta n c e .

15. Ccm poct proportions plus optimum m eter exposure for fo s t m easure*

ment. 1 90 x 1 3 3 *6 2 mm ( 7 .5 ” * 5 - 2 5 " * 2 . 4 " ) . *

16. w eig h t, 1 leg ( 2 .2 lb s ).

17. E a s ily c a rrie d , e a s ily h o ndled. Human e n g in ee red for maximum prac- tic o lly in s e rv ic e . H oused in g e n u in e b rid le le o fh e r carry c a s e . In s tru ­ ment con be o p e rated in sik>.

IS . U ltrc s tc b le shunt and m u ltip lie r re s is to rs exten d in g c a lib ra tio n ac­

cu racy, e e s p ite tough en viro n m e n ta l c o n d itio n s , for many y e a rs . 19. M eter s c a le is as d e p ic te d in F ig . 1.

20. F ig . 2 g ive s e xte rn a l a p p e a ra n c e .

S P E C IF IC A T IO N S UM M ARY D C V o lta g e M e a su rin g Ranges:

150 m V '5 0 0 m V / 1 .5 / 5 / 1S/ 5 0 / 1 5 0 / 5 0 0 / 1500 V . A C V o lta g e M e a suring Ranges:

1.5 ^5 15 50 1 5 0 /2 5 0 /5 0 0 /1 5 0 0 V . D C Current M easuring R anges:

10 UK 15 (iA /5 0 0 u A /1 5 m A /5 0 0 m A /1 .5 A / 15 A.

A C Current M e a suring R anges;

15 A.

R e s is ta n c e M e a su rin g R anges:

o* e ta b le belo w .

R t .s ta n c e M e a suring Ronges:

T a b le A

F e s ,s *a n c e Range S ca le C e n tre V a lu e ...

B a rte ry V o lta g e

0 - 2 0 k tl 70 n 1 .5 V

5 -2 C O fcO 7 0 0 Q 1 .5 V

0 - 2 V i! 7 k il 1 .5 V

0 - 2 0 M il 70 kQ 1.5 V

0 - 2 0 0 M il 7 0 0 kQ 10 5 V

2

Ohm m eter C irc u its Supply: O ne bottery T y p e R14 One bottery T y p e 6 F 2 2

D e c ib e l M e a su rin g Ranges Correspo nd ta A C V o lta g e M e a suring Ronges as fo llo w s :

T o b le B

D e c ib e l M e a su rin g Ranges P o s itio n o f S w itch

- 2 0 dBm +6 dßm 1.5 v

- 1 0 dBm + 16 dBm 5 V

0 dBm ... +26 dBm 15 V

* 10 dBm +36 dBm 5 0 V

- 20 dBm +46 dBm 15C V

* 2 4 dBm -5 0 dBm 250 V

! * 30 dBm +56 dBm 5 00 V

i

A c ce s s o rie s

Each in s tiu m e n t s u p p lie d w ith fo llo w in g item s:

- L e a th e r carry c as e w ith strap e n ab lin g op e rato r to e ffe c t m easure­

m ents w ith m eter suspended from neck.

- T w o te s t lea d s w ith te rm in a ls ond prcds.

- T w o a llig a to r c lip s to be a tta ch ed to te s t te rm in a ls . - Spore fuse.

- In s tru c tio n m anuol.

A P P L IC A T IO N

T h e in f in im e n t .is de sig n e d to m easure the fo llo w in g e le c tric a l param eters:

- D C v o lts

\

- A C v o lt»

- DC

~ AC

- D e c ib e ls b a se d upon O dB * 1 mW into 6 0 0 Q 0 -7 7 5 V o lt

D E T A IL E D S P E C IF IC A T IO N

V o ltm e te r In p u t R e s is ta n c e :

100,000

31,600 a/V

AC

D C V o lta g e : 1 5 0 /5 0 0 m V / 1 .5 / 5 / 1 5 / 5 0 / 1 5 0 / 5 0 0 /1 5 0 0 V A C V o lta g e : 1.5 /5 / 1 5 / 5 0 / 1 5 0 / 2 5 0 / 5 0 0 / 1 5 0 0 V . D e c ib e ls ; F ro m -2 0 dBm to + 6 6 dBm depend ing on range.

OdBm ■ 1 mW in fo 6 0 0

ft

D C C u rre n t: 1 0 /1 5 /5 0 0 „ A / 1 V 5 O 0 m A / 1 .5 / 1 5 A . A C C u rre n t: 15A.

R e s is ta n c e : See T a b l* 1-

T a b le I

P o s itio n o f S w itch

Ranqe o f In d ic a tio n

Scale C e n tre

V a lu e S ro p ly V o lta a e

Q x 100

0-20

70 C

Í1 x 1 k

0-200

700 il

n

io k 0-2

n

loo k 0-20 Mil ⁷⁰ kn

Q x 1M

0-200

700 kil

P R E P A R A T IO N O F M E T E R F O R M E A S U R E M E N T

1. A d ju s t p o i n t e r to m e ch a n ica l • 's e f o " , by m eans of ¡ t r o o d |u s te r knob

F i,. 2 ( 6 ).

5

2. P re s s p o lo rity switch (17» morked M i " .

3. S ele ct the re quire d or the h ig h e s t m easuring range by m eans o f s w itc h Knob (51.

4. Connect lea d s to |a ck s (2 ), (11, m orked * V ’ , and for m e as ure ­ ments of currents higher than 0 .5 A , c onnec t lea d s to |Ock (1) m arked and locks (4 ) or (3 ) morked " 1 . 5 " or " 1 5 A ' ' re s p e c tiv e ly .

M E A S U R E M E N T S

1. DC V o lta g e

Set c en tral s e le c to r s w itc h knob (5 ) to re q u ire d ra nge, (m arked b lo c k ).

C onnect input v o lta g e or c u rren t v ia |a c k s ( \ ) , (2 ), m arked

re s p e c tiv e ly . T h e p o te n tio l nearer to ground p o te n tia l or the c o ld side of input must be c o n n ec te d to |ock ( ] ) ,

C aution: Do not touch le a d s i f v o lta g e h ig h e r than 5 0 0 V

If pointer d e fle c ts to le f t it in d ic a te s input p o la rity o f v o lta g e is re v e rs e to p o la rity o f ja c k s .

O e fle c tio n to rig h t is a cc o m p lis h e d by p re ss in g p o la rity s w itc h (1 2 ) morked * * * " . T h is chonges p o la rity o f in p u t to m e ter.

Th e p a ram eter b ein g m easured is re a d on b lac k s c a le s (1 0 ) 0 - 5 or 0 - 1 5 , according to range s e le c te d . A p p ly d e cim a l m u ltip lie rs a c c o rd in g ly as s p e c ifie d in T a b le 2.

T a b le 2

M e a su rin g Rcnge S ca le M u ltip lie r

0 - 1 5 0 mV 0 - 1 5 * 10 m V

0 - 5 0 0 m V 0 - 5 x 100 avY

0 - 1 . 5 V 0 - 1 5 x 0 .1 V

0 - 5 V 0 - 5 x 1 V

0 - 1 5 V 0 - 1 5 x 1 V

0 - 5 0 V 0 - 5 x 10 V

0 - 1 5 0 V 0 - 1 5 x 10 V

0 - 5 0 0 V 0 - 5 x 100 V

0 - 1 5 0 0 V 0 - 1 5 x 100 V

2 . D C Current

Set s e je c lo r k m b (5 ) to re q u ire d range. D C c u rren t measurements w ith in the range o f 10 p A to 0 .5 A.

C o n n e c t current c ir c u it to ja c k s (J ), (2 ), marked

For D C current m easurem ents w ith in the ranges 1 .5 A and 1 5 A set sc«

le c to r s w itc h knob (5 ) to the 0 .5 A range and connect current c irc u it to ja c k s (1 ), (4 ), or (3 ), m arked and M 1 .5 A ’ ' or " I S A 1 .

I f n e c e s s a ry re ve rse d ire c tio n o f p o in te r d e fle c tio n by depression of p o lo r.ty s w itc h (1 2 ), (M arked M ± " ) . T h is changes p o la rity o f supply to m eter m ovem ent.

T h e v a lu e m easured is read on b la c k s c a le (1 0 ) 0 - 5 or 0 - 1 5 a ccording to range s e le c te d . A p p ly decim al m u ltip lie rs a cc o rd in g ly as s p e c ifie d in T a b le 3,

T a b le 3

Mfeosuring Range S ca le M u ltio lie r

0 - 1 0 nA 0 - 5 x 2 jjA

0 - 1 5 WA 0 - 1 5 ^X 1 MA

0 - 5 0 0 ¿<A 0 - 5 X 100 (lA

0 - 1 5 n A . 0 - 1 5 x 1 mA

0 - 5 0 0 mA 0 - 5 x 100 mA

0 - 1 . 5 A 0 - 1 5 x 0 .1 A

0 - 1 5 A 0 - 1 5 x 1 A

M e a su rin g current g re ater thon 6 A m ust not e xceed 10 m inutes

3. A C V o lta g e

Set s e le c to r s w itc h (5 ) the re q u ire d range (m arked red).

C o n n e c t v o lta g e input to ja c k s (1 ), (2 ), m arked " + M re s o e c tiv e ly , th e p o te n tia l nearer to ground p o te n tia l must be connected to |Ock (1 ) marked

Coution: Do not touch leod s p o rtic u la rly if v o lta g e h ig h e r than 5 0 0 V

T h a v o lu * m easured I * read on red s c a le s (9 ) 0 - 5 or 0 - 1 5 . F o r 1.5 V range on s ca le (8) 0 - 1 . 5 - A p p ly re s p e c tiv e d e cim a l m u ltip lie rs as s p e c ifie d in T a b le 4.

T a b le 4

M e o tu rln g R a n g . S ca le M u ltip lie r

0 - 1 . 5 V 0 - 1 - 5 - * 1 V

0 - 5 V 0 - 5 x 1 V

0 - 1 5 V 0 - 15 x 1 V

0 - 5 0 V 0 - 5 x 10 V

0 - 1 5 0 V 0 - 1 5 x 10 V

0 - 2 5 0 V 0 - 5 x 50 V

0 - 5 0 0 V 0 - 5 x 100 V

0 - 1 5 0 0 V 0 - 1 5 x 100 V

4- R e s is ta n c e

Set s e le c to r s w itc h (5 ) to re q u ire d range (green c o lo u r).

M o te t T h e h ig h « « » a c c u r a c y In r « « l* t o n c e m e a * u r e m « n t is t o m id d le s e g m e n t o f s c a l e .

3 e fo re m easurem ent shart c irc u it ja c k s (1 ), and (2 ) m arked and

Adjust p o in te r to M0 f t " by control (1 3 ) m arked " 0 f t A D j ' \

If such adju stm ent connot be a cc om plis he d, Ohms b a tte ry is disc h a rg ed and m ust be re p la c e d . M o v e fla p s itu a te d in th e lo w er p a rt o f tfie c a s 8 . Connect re s is ta n c e or ele m e n t to be m easured.

T h e m easured v a lu e is read on green s c a le (1 1 ). A p p ly d e cim a l m u lti- pl ers as in s c rib e d of ra n g e s w itc h knob (5 ).

Th e chm m eter is e n e rg ize d by the fo llo w in g b a tte rie s :

1.5 V T y p e R 14 (1 6 )

9 V T y p « 6 F 2 2 (1 5 ) depending on range as per T a b le 1.

5 . D e c ib e ls

D e c ib e ls m easurem ent Is perform ed on A C v o lta g e ranges d istin g u ish e d by red s c a le .

• ____________________________________ T a b le 5

V o llo g e M e o s u /in g Ronge

D .c ib e l M e a suring

Range Add V a lu e dBm 1

0 - 1 . 5 V - 2 0 ... +5 dBm 0

0 - 5 V - 1 0 *1 0

0 - 1 5 V 0 * 2 0

0 - 5 0 V * 10 ...*3 6 dBm +30

0 - 1 5 0 V * 2 0 *4 0

0 - 2 5 0 V * 2 4 ... +50 dBm *44

0 - 5 0 0 V * 3 0 ...+56 dBm *50

0 - 1 5 0 0 V ‘ 40 +60

V a lu e dBm is read on red s c a le (7 ). Add re s p e c tiv e volu e dBm s p e c ifie d in T a b le 5 a cc ording to range.

T-ab i ® 6

dBm

-20

-10

-6

P o u ir

mW o .o i

,

^0.10

^0.20

1

! 0 « e i b * | *

dBm - 1 0 ♦ 1 ♦2 * 3

u S

P o w ^ r mH

"

0 .6 3 o .so 1 1.26 1 .S3 2.00 2.50 3 .1 4 4 .0 0 I j

0 dBm corresponds fo pow er 1 mW d is s ip o te d In re s is to r o f 6C0 ft w ith a drop o f 0 .7 7 5 V .

R e la tio n be tw ee n pow er and d e c ib e ls Co» -«spending to dBm s c a le is shown in T o b le 6.

Th e v a lu e of pow e* lo s t on the 6 0 0 f t re s is to r (In c o s e o f d e c ib e l m eas­

urement on v o lta g e range s e le c te d a t w i ll ) is o b ta in e d by m u ltip ly in g a power v alu e from T a b le 6 by a m u ltip lie r from T a b le 7.

T c b le 7

i V o ltag e j M easuring

| Range

D e c ib e l M eosuring

R ange P ow er Range

! ...

!

! M u ltip lie r

j 0 - 1 . 5 V - 2 0 0.0 1 4 mW | x 1

i 0 - 5 V - 1 0 . + 1 6 dBm 0 .1 40 mW 1

X

:

o -is v

! 0 - 5 0 V + 10 . . . +36 dBm 0 .0 1 . 4 m * * 1000 I 0 - 1 5 0 V + 20 ... +46 dBm 0 .1 . 4 0 mW « 1 0 .0 0 0 { 0 - 2 5 0 V + 24 ... +50 dBm 0 .2 5 100 mW : X 1 00 .00 0 1 0 - 5 0 0 V + 30 ... *5 6 dBm 1 400 mW

! X

I

| 0 - 1 5 0 0 V + 40 10 . . .

o

o 8 o o

If the v alu e o f lo ad re s is ta n c e is d iffe re n t from 6 00 f t the po w e r should be m u ltip lie d by c o e ffic ie n t.

r e s is ta n c e of load

For exom ole, for lood re s is ta n c e o f 6 f t the v a lu e c a lc u la te d occording to the tobte should be m u ltip lie d by ICO,

6. AC C urrent

$«• control knob (5 ) to p o s itio n 15 A A C C onne c t the cu rren t c ir c u it to ja c k * 11) and (3 ) m arked * • - ” and " | 5 A " . •

10

R e ad the current v a lu e on red scoie (8 ) 0 - 1 . 5 . a p p lyin g m u ltip lie r x lO A C u rre n t m easurem ent g re a te r than ¿ A should n o t e xc ee d 10 m inute s.

R E P L A C E A B L E E L E M E N T S

M e te r ts equipped w ith fuse (1 7 ), (1 8 ), T y p e W b o - 0 .5 A - 2 5 0 V*

F u s e ( 18) i» spare fuse. F use (1 8 ) should be p lo c ed into holder in p la c e o f fuse (1 7 ) ( i f fu s e (? 7 ) is d e fe c tiv e ).

B a tte ry typers:

1 .5 V R id (1 6 )

9 V 6 F 2 2 115) em ployed for ohm m eter e n e rg iz a tio n .

D is ch a rg e d b a tte rie s m ust be re p la c e d for ^ e w ones g e n e ra lly c v a ilo b le , o f the same type, B o tte n e s should be le a k p ro o f ty p e s.

B a tte rie s and tfte fu s e s are a c c e s s ib le upon moving fla p s itu a te d in the re ar o f lo w e r p a rt o f m erer cose. Da not open in stru m en t up to re o 'o c e b a tte rie s . T h is is a b s o lu te ly not n e c e s s a ry .

Parts » lists R w lsto rs

No Viluc Toi .xanoe % Power W

l 2 3 4

RI 10.24 m il +i on 2

R2 90 mO ±1 0.5 -

R3 212 J m a ± 1 0.25

R4 1 8 0 ±0,5 0.25

R5 165 a ±1 0.25

R6 397 n ±0,5 0.25

R7 1.26 kO ± 0 ,5 0.25

R8 8.56 k o ±0,5 0.25

R9 7.96 k a ± 0 ,5 0.25

RIO 10 2 k n ± 1 0.25

R I l 500 n ± 2 0 0.1

R12 9.88 k a ±0,S 0.25

R13 1 k a ± 2 0 a i

R14 2.2 kO ± 2 0 0.1

R15 l . l k a ± 2 0.25

R16 698 k a ± 1 0.25

RI 7 61.9 k a ±1 0.25

RI8 5.23 k o ±1 0.25

R19 511 a ± 1 0.25

R20 51.1 a ± 2 0.25

R2I 2.61 k a ± 2 0.25

R22 59 k a ± 2 0.25

R23 22 k a ± 2 0 0.25

R24 5.97 k a ±0,5 0.25

R25 34.2 k a ±0,5 a 2 5

R26 108 k a ± 1 0.25

R27 340 kO ±0,5 0.25

R28 ! MO ± 1 0.5

R29 80.6 kO ±1 0.25

R30 3 42 MO ±1 0.25

R31 2 9 MO ±1 a 2 5

R32 7,9 MO ±1 0.5

R33 34.2 MO ±1 2

R34 7 15 k a ±1 a 2 5

R35 5 o o a ± 2 0 a i

R36 12.1 k a ±1 a 2 5

R37 2 2 k a ± 2 0 0.1

R38 1.62 k a ± 1 0.25

R39 2 2 k a ± 2 0 0.1

R40 34.2 k a ±1 a 2 5

R41 io o n ± 5 0.25

/

FUSES

Dasignntto» Type

y>, 02 D 3 0 4

D K - 2 B 2 Y P P ' D I

D esignation Type

F p te 500 ■»'V2 S0 V

b a t t e r i e s

1 O eJlfl'K. on Type / o U j y . I

( 3 1 R 14 ».5 V

B ' 2 a F 22 t v

+ CDH ! 5 A * I S A -