1
．
If t he vo lt ag e ra n ge is un kn o wn bef o re ha nd , s et th e k no b t o t h e
hi gh est r an ge , th e n, se le ct a p ro pe r ran ge a cc or di ng t o t he d is pl a yi n g
val ue .
2
．
T he re i s a re ma ine d va lu e at s ma l l v ol ta ge r an ge b e f ore me asur in g, i t is
no r mal a nd h av e no eff ect on mea s ure me n t. If MSD di sp la ys “ 1” , it
me an s ov er ra ng e, sh ou ld s et th e kn o b t o a hi gh er r an g e.
3
．
D o no t in pu t a vo lta ge o ve r 10 00 V, or, th e c ir cu it mi gh t be d a mag ed .
4
．
B e ca ref ul w he n me as ur in g hi gh vo lta ge c ir cu it .
4 - 3
．
A C V M E A S U R E M E N T
3- 1
．
A pp l y t he b l ack t es t le ad t o “ C OM” te r min al a nd the r ed o ne t o V/
Ω
ter mi n al.
3- 2
．
S et t he k no b t o pr op er A CV r a ng e, c on ne ct t he t est lea ds cro ss l y t o
the c ir cu it u nd er t est ed .
NO TE :
1
．
If t he v ol ta ge un de r t es te d is u n kn ow n bef o re ha nd , s et t he k no b to t he
hi gh est r an ge , th e n, se le ct a p ro pe r ran ge a cc or di ng t o t he d is pl a yi n g
val ue .
2
．
Th er e i s a re ma in ed va l ue at s ma ll v olt ag e ra ng e bef o re mea su ri ng , it
is n or ma l an d ha v e no eff ect on mea sur e me nt . If M SD di sp la ys “ 1” , i t
me an s ov er ra ng e, sh ou ld s et th e kn o b t o a hi gh er r an g e.
3
．
D o no t in pu t v olt ag e ov er 7 50 Vr ms
，
or, t he c ir cu i t mi gh t be d a mag e d.
4
．
B e ca ref ul w he n me as ur in g hi gh vo lt ci rc ui t.
4 - 4 . D C A M E A S U R E M E N T
1
．
Ap pl y t h e bl a ck te st l ea d to “ C OM ” te r min al , an d t he r ed o ne t o mA
ter mi n al ( max . 20 0 mA) , or re d te st le ad t o “2 0A ” te r min al
（
ma x.
20 A
）
.
2
．
Se t th e k no b to p ro pe r D CA ra ng e, c on ne ct th e me ter to th e ci rc u it
un de r te st ed , th e c urr en t v al ue a nd p ola ri t y of r ed te st lea d c on ne ct t o
wi ll di s pla y o n LC D.
NO TE :
1
．
If th e c ur re nt un de r t es te d is u n kn ow n bef o re ha nd , s et t he k no b to t he
hi gh est ra ng e, t he n, s el ec t pr op er r an ge a cc or di ng t o t he dis p la yi n g
val ue .
2
．
If L CD d is pl a ys “ 1”, i t me a ns ov er ra ng e, s ho ul d se t th e kn ob t o a
hi gh er ra ng e.
3
．
Ma x. i np ut c u rre nt i s 20 0 mA o r 20 A
（
s ub jec t to w her e th e rd t es t le a d
ap pl y t o
）
, t oo la rge cu rr en t w il l b lo w th e f us e. Be car ef ul at 2 0 A,
bec au se 2 0A is inf us ed, co n ti nu ou sl y me as ur in g w il l make th e c ir cu it
hea t an d eff ect o n the a cc ur ac y e v en da ma ge d th e me te r.
4 - 5
．
A C A M E A S U R E M E N T
1
．
Ap pl y t he bl a ck tes t l ea d t o “ C OM ” t er mi na l a nd th e re d on e t o“ m A”
ter mi n al
（
ma x. 2 00 mA
），
o r ap pl y t h e red o ne t o “2 0A ” t er mi na l
（
max .
20 A
）
.
2
．
Se t th e k no b to p ro pe r A CA ra ng e, c on ne ct th e me ter to th e ci rc u it
un de r t es te d.
NO TE :
1
．
I f th e c ur re nt un de r t es te d is u n kn ow n bef o re ha nd , s et t he k no b to t he
hi gh est ra ng e, t he n, s el ec t pr op er r an ge a cc or di ng t o t he dis p la yi n g
val ue .
2
．
If L CD d is pl a ys “ 1”, i t me a ns ov er ra ng e, s ho ul d se t th e kn ob t o a
hi gh er ra ng e.
3
．
Ma x. i np ut c u rre nt i s 20 0 mA o r 20 A
（
s ub jec t to w her e th e rd t es t le a d
ap pl y t o
）
, t oo la rge cu rr en t w il l b lo w th e f us e. Be car ef ul at 2 0 A,
bec au se 2 0A is inf us ed, co n ti nu ou sl y me as ur in g w il l make th e c ir cu it
hea t an d eff ect o n the a cc ur ac y e v en da ma ge d th e me te r.
4 - 6 . R E S I S TA N C E M E A S U R E M E N T
1
．
A pp l y th e b l ack te st le ad to “C OM ” t er mi na l a nd the re d o ne to V /
Ω
ter mi n al.
2
．
S et t he kn o b t o p ro pe r re si st an c e r an ge ; co nn ec t t est l ea ds c ro ss l y t o
the r es is to r un de r tes te d.
NO TE :
1
．
If re si st an ce is ov er se lec te d r an ge va lu e, “ 1” d is p la ys , s ho ul d s et th e
kn ob t o a hi gh er ra ng e. Whe n me as uri ng v al ue i s ov er 1 M
Ω
, th e
rea di ng w ill ta ke a f ew s ec on ds t o b e s ta ble , i t’s no r mal f o r h ig h
res is ta nc e me as ur i ng .
2
．
Whe n in pu t te r mi na l is i n o pe n ci rcu it , ov er lo ad d is pla ys .
3
．
Whe n mea su ri ng i n l in e r es is tor, be su re th at po w er i s t ur ne d off an d
all c ap ac it or s ar e rel ea se d co mp le te l y.
4
．
D o no t in pu t a n y v ol t a t th is r an ge.
4 - 7
．
C A PA C I TA N C E M E A S U R E M E N T
1
．
A pp l y th e kn o b t o p ro pe r c ap ac ita nc e ra ng e, an d in ser t th e c ap ac it or
un de r t es te d in to “ Cx ” ter mi n al
2
．
C on ne ct te st le ad s t o t he tw o p oi nt s of c ap ac it or, b e ca re of p ol ari t y if
nec es sa r y.
NO TE :
1
．
If th e c ap ac it an ce un de r te st ed i s ov er th e ma x. v al u e of se le ct ed r an g e,
LC D di sp la ys “ 1” on l y, t hu s, s ho ul d set t he k no b to a h ig her r an ge .
2
．
I t’s n or ma l t ha t t he re is a re ma i ne d v al ue on L CD bef o re ca pa ci ta nc e
me as ur e men t, a nd it ha s no eff ec t on mea su ri ng .
3
．
Whe n me asur i ng a t l arge c ap ac i tan ce r an ge , if c a pac it or i s br ok en or
lea ka ge , LC D d is p la ys a va lu e an d it ’s u nst ab le .
4
．
R el ea se t he ca pac it or c o mp let el y bef o re mea su ri ng .
4 - 8
．
T R A N S I S T O R h F E
1
．
S et t he k no b to h FE ra n ge.
2
．
Ver if y th e tr an sis t or u nd er t es te d is N P N or PN P, i ns er t e mit ter, ba s e
an d c ol le ct or t o pr op er ja ck .
4 - 9
．
D I O D E A N D C O N T I N U I T Y T E S T
1
．
A pp l y th e b la c k t es t l ea d t o “ C OM” t er mi na l a nd th e r ed on e t o V/
Ω
ter mi n al
（
th e po la rit y of r ed l ea d is “+”
）
.
2
．
S et t he kn ob t o
r an ge, co nn ec t t es t l ea ds t o t he d io de un de r
tes te d, t he re d t es t c on ne ct to di od e p os it iv e p ol ar it y, t he re ad in g i s
the a pp ro x. v al ue of di o de f o rw ar d v olt d ro p.
3
．
A pp l y t e st lea ds t o t w o p oi nt s of t es te d c ir cu it , if t he in ne r b uz ze r
so un ds , th e r es is ta nce i s le ss t ha n (3 0±10 )
Ω
.
4 - 1 0
．
D ATA H O L D
Pr es s d ow n th e ke y, th e pr ese n t v al ue is h ol d on L C D, pr es s up t he k e y
an d t he f un ct io n is ca nc el le d.
4 - 11
。
A U T O P O W E R O F F
Af ter s to p w or ki n g f or 20 ±10 mi n ut es, t he me te r wi ll be in to sl ee p mo d e.
Pr es s “ PO WER ” k e y t wic e to r es ta rt th e po we r.
4 - 1 2
．
B A C K L I G H T I N D I C AT I O N
P re ss “ B/ L” k e y t o t ur n on t he b ac k lig h t, an d pr es s ag ain t o tu rn i t off .
5 . M A I N TA N E N C E
Do n ot tr y t o mo di f y th e ci rc ui t.
NO TE :
1
．
D o no t in pu t a vo lta ge o ve r 10 00 V DC o r 75 0Vr ms AC .
2
．
D o no t me as ur e v ol ta ge a t
Ω
ra n ge.
3
．
D o no t ta ke me as ure me n t bef or e bat te r y i s f i t on o r re ar c as e is f ixe d.
4
．
R e mov e t es t lea ds f r o m t est i n g p oi nt an d t ur n po we r off bef or e
rep la ci ng b at te r y or f u se .
5. Kee p t he mul ti me mb er d r y. Ke ep t he mul ti - met er aw a y f ro m du st a nd
dir t
6. Us e an d s to re th e mu l ti- me t er o nl y i n n or ma l t e mp er atu re en vi ro n men t s.
Te mp e rat ur e ex tre me s c an sh or te n t he lif e of el ec tr o nic d ev ic es , d a ma ge
bat te ri es , an d di st ort o r me lt p la st ic par t.
7. Ha nd le th e mul t i ye ar ge nt l y a nd c aref u ll y. Dr op pi ng it ca n d a mag e t h e
cir cu it bo ar ds a nd c as e an d c an ca use th e mul ti - met er to w or k i mp ro pe rl y
alt ho u gh t he h ol st er ca n pr ov id e en o ug h pr ot ect io n.
8. Wip e t he mu lt i- me ter w it h a d a mp clo th oc ca si on al l y t o ke ep it lo ok i ng
ne w. D o n ot u se h ars h ch e mic al s, c l ean in g so lv en ts , o r s tr on g de te rg en t s
to cl ea n th e mu lt i- me te r.
9
．
Whe n “
” a pp ea rs on L C D, re pl ac e b at te r y a s be lo w :
9- 1
．
R el ea se t he bat te r y c as e.
9- 2
．
Ta ke o ut th e o ld ba tte r y a n d r epl ac e a n ew on e. I t’s be tt er to u se
alk al in e ba tt er y f o r l on g ti me u sa ge .
9- 3
．
F ix t he b at te r y ca se .
10 .
FU SE R E PL A CE ME N T , pl s. Us e th e sa me t yp e f u s e a s sp ec if ie d.
10 -1
．
Re le as e t he ba tt er y ca se , unf i xi ng th e t hr ee bo lt s a nd op en th e r ea r
cas e.
10 -2
．
Tak e ou t t h e o ld f us e an d re pl ace a n ew o ne .
10 -3
．
Fi x th e re a r ca se a nd b at te r y c as e. pl s. see th e ph ot o to f it on t h e
ho ls ter.
If th e me te r do es no t wo rk p ro per l y, ch ec k th e me te r a s f ol lo wi n g:
CO ND IT IO N S
WAY TO SO LV E
NO
DI SP LAYI N G
Th e po we r i s n ot t ur ne d o n
HO LD k e y
rep la ce b at te r y
s ymb ol
di spla ys
rep la ce b at te r y
NO
CU RRE NT
IN PU T
rep la ce f us e
BI G ER RO R
rep la ce b at te r y
T h e s p e c i f i c a t i o n s a re s u b j e c t t o c h a n g e w i t h o u t n o t i c e .
T h e c o n t e n t o f t h i s m a n u a l i s r e g a r d e d a s c o r re c t , e r r o r o r
o m i t s P l s . c o n t a c t w i t h f a c t o r y.
We h e re b y w i l l n o t b e r e s p o n s i b l e f o r t h e a c c i d e n t a n d
d a m a g e c a u s e d b y i m p r o p e r o p e r a t i o n .
T h e f u n c t i o n s t a t e d f o r t h i s U s e r M a n u a l c a n n o t b e t h e
re a s o n o f s p e c i a l u s a g e .
