Text preview for : Sanwa YX-360TR Multitester.PDF part of Sanwa YX-360TR The Operator's Manual for the Sanwa YX-360TR Analog Multitester. This manual is circa 1980.



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MULTITESTER

sanuJa
Dempa Bldg.,Sotokanda2-Chome Chiyoda-Ku, Tokyo, Japan

SANWA ELECTRIC INSTRUMENT LTD. CO.,

OPERATOR'S MANUAL

H 1tr 6f;ts8{fi

for safety operation and maintenance
To be sure, a circuit tester is a very useful device capable of measuring voltage, current, resistance, and various other electric and electronic quantities. Accordingly, the object of me'asurement coversvaries widely from minute current it to high voltage. Furthermore, the input impedance changes from a few ohms up to high megohm level with the measurement range cut over. These properties of a circuit t e s t e r d e m a n d t h e o p e r a t o r t o u s e u t m o s t ca r e i n , th e operation and maintenance of his instrument to ward himself off danger and damage to the meter. Especially when checking high power equipment, no operation mistake should be committed. Remember a circuit tester needs periodical inspection and calibration to maintain it in good condition. A tester known to be defective, or laid away unused for many months must not be used to measure a voltage above 100V. Be certain for a tester to undergo warrantable inspection at least once a year, when correct indication of the range must be ascertainedand withstand v o l t a q et e s t n o t b e o m i t t e d .

Fig. I

Indicator zero corrector Rangeselectorswitch knob Measuring terminal f Measuring terminal -COM (common) OUTPUT (series condenser) terminal 6 0Q adjustingknob 7 Nameplate

I 2 3 4

8 9 l0 II l2 l3 l4 I5 l6

Indicatorpointer Rearcase bolt R e a rc a s e Non-skidrubbers Rubbers fitted forhrr test Connector pin Connection to tester Transistorbaseclip Transistorcollectorclip
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general description
Viewed in the light of a circuit tester measuring voltage, current, resistance,etc., the YX-360TR is no more than a standard multitester in function. But the added versatility of performing as a transistor analyzer distinguishes it from averagemeters. For the particulan of its bounds of hidden possibility, you can examine for yourself the specification data along with the benefits and advantagesthe instrument offers. For all this, the YX-360TR is by no means a large-built equipment, but it is a lightweight and handy-sized device to be seated anywhere on your bench. As a matter of fact, it is suitable for carrying service. From beginners to professionals, you can enjoy a good command of it so as to get the best of the instrument on your original idea according to your own service desigt,

contents
General description Features Measurement ranges and performance I As a circuit tester 2 As a transistor tester . Operation I - as a circuit tester I Zero correction of indicator 2 Test lead connections 3 Selectionof range 4 Measurement ranges and scale reading . . . . . . 5 Difference between voltage and current .......1 0 mdasurements 6 Voltage measurementand internal impedance . 7 Use of HV probe for TV servicing 8 ACV measurement on OUTPUT terminal . . . . 9 Resistancemeasurement and 0S-ladjustment . . I 0 dB scale Operation II - as a transistor tester . I Preliminaries .. 2 Measurementof Icro (leakagecurrent) . . . . . . 3 Measurementof hre (DC amplification factor) 4 Measurementof diode including LED . . Maintenance I Choosing a proper range. 2 Measurementof unknown values 3 Protection of tester . . 4 Burnout damage through misapplication Supplementary data I Arrangement of parts 2 Partslist... 2 4 6 6 6 7 7 7 7 g

.

.

1l Lz . 13 . 13 15 17 t7 . 17 18 20 2l 2l 21 2l 21 23 24 25

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-3-

features
All-purpose function. The YX-360TR will entertain you with expanded vision of application. Optional use of the connector readily transfers the meter to a regular transistor tester to directly read hrr (DC amplification factor) of transistors for you to determine if they are suitable for circuit use. Few testersperform such unique double service.

5 One-handedoperation control and rational arrangement
of ranges. All measurementsare controlled by a single knob. Into the bargain, the 1000V DC and AC rangeslie adjacent each other on the selector switchboard to evadepossible danger caused by misplaced range selection. In most testers are found these rangesadjoined at the ohm range, and there is a fair chance of the circuit resistorsbeing burnt out rendering the instrument out of service.[n the worst case, it might bring on serious accident to the operator.

2

Ability no less better than a large-sizedtester. Excellent resolution factor of 0.2mV and above, and widened resistance measurement range reading from 0.2Q up to 20MQ, and that energizedby the small-size internal batteries, compare the instrument favorably with a bulky test gear.

6 Non-skid rubber support.
The rubbers supplied may be fitted in the pits on the rear to tilt the meter to a convenient viewing angle on the bench. They also serve to prevent the meter to skid. Glassindicator cover. In consideration of the portable use of the instrument, scratch-, heat- and dust-proof glass is used for the protection of the indicator instead of a soft metacrylicresin cover.

3

Seriescondenserterminal (OUTPUTI. Applied use of this extra terminal serves to check TV circuits for detecting AC signals with DC element present mixed isolated.

4

3-volt internal battery power. It is impossible for a usual handy tester with a 1.S-volt battery built - in to check the linear continuity of semiconductors like LED whose forward voltage exceeds 1.5V, being unable to read either their forward or backwald resistance. In this respect, the 1.s-volt batteries lined up in seriesspread the measurementrange of semiconductors.

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-5-

measurement ranges and performance 1 As a circuittester.
Measurement anges r

operation | - as a circuit tester
1 Zero correction of indicator, [email protected] adjusted to place t h e p o i n te r @o n 0 of the scale left.

0- 0.I V-0. 5v-2.5 10V-s0V-25gy Vl 000v-(25kV) 25kV with HV probeextra

.iii Frequency l38fi::,8[il;
0 - 5 0 uA -2 .5m A- 25m A- 0. 25A 50uA at 0.lVDC position

0- l0v-50v-250V- 1000v

:i must be confirmedbeforestarting *earuiem.nt.
Input impedance 8kf,l/v Voltage dtop 250mV ( l0 0 m V for 50uA) Internal batteries UM-3 x 2 0061x 1 8ko/v for OUTPUT terminal

measurement, ;::$*':rtilJ"l:lj;* b,t t;:

::::

2 Test leadconnections. The test leadsattached inserted are well down, the red going to the + jack and the Ufu"t fead f."O L the _COM 3 Selection range. of When selecting range,the white a mark correctlypositioned the prescrib.d on the knob is at ;;;g;.' 3-I D C vol rage C V ). (D DC voltagesof batteries, amplifier circuits, power sourceof communication equipment, tuUeand tran_ sistorcircuit biases,.etc.-ar. _.urur.d. Eich of the 7 rangenotations(0. l-1000) indicates the rnaxrmum voltagereadingfor that range. 3-2 AC voltage (ACV). Voltages of commercialAC supply, circuits, AF signatlevel, erc. .r";;aiu;;;.AC powered Each of the 4 rangenorations_(10_rooo) ;;;;;;;; the maxi_ mum voltagereadingfor that range. 3-3 D C current C A ).. (D Current consumption DC power of operatedequip_
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-2oo-2Ok-200kiiti lrlaximum -20k- 2M-20M irl) 2k
-l0dB-+22dB for I0VAC 0dB/0.775VlmW throush ( 600a)

Yi4.q- 9.2- 2 -zoo-zob[iol Midscale 20

S T gr

X I - x l O -x l k -x tOk

2 As a transistortester.
Leakage current (lc e o ) (LI )

0- l50uA at X lk ranee 0- l5mA at X l0 ranei 0-l50mA at Xl ranle 0 -10 00 a t Xl0 r ange f ) (

t5 % o f Currentaiuc crossterminals x3 % o f arc With connecto r e xtra

DC current amplification factor (hre)

- 6-

ment, bias cunent of tube and transistor circuits, etc. are measured. Each of the 4 range notations (50uA-0.25A) indicates the maximum current reading for that range. (uA= l0-3 mA and A- 103mA) (Q) 3-4 Resistance Resistance is measured, and line and circuit continuity (- or 0Q) tested. Each of the 4 range notations indicates the multiplication of the reading for that range, where k stands for I 000.

4 Measurement ranges and scale reading.
Scale mark Measurement Resistance Scale reading

(l) o (black)

Xl rangedirectly reads0.2fi-2kS-|. For Xl0, Xlk and XlOk ranges, multiply readings the multiples. by
For accuracy reading, the pointer itself and its image in the mirror must be l i ned up.

(2) Mirror

(3) DCV.A (black)

0-10, 0-50 and 0-250 lines each reading 0-10V, 0-50V and0-250V fs. 0 .1 V , 0 . 5 V , 2 . 5 Va n d 1 0 0 0 Va r er e a d DC voltage and current multiplied. For current, G250(A) line reads 0-0.254., 0-25mA and 0-2.5mA. 0-50uA is readon 0-50 line.
AC voltage

(4) A C V (red)

Common scale with DCV reads 0-250V, 0-50V and 0-l0V directly. For 0-1000V, multiply the readine on 0- l0 line.
on

(s)hrr

(bl ue)

DC amplihca- E xtra connector rea ds 0-1000 tion factor X lO('fi) rarge.

(6) LE A K , Iceo, LI (bl ue)

Reads cunent flow across + and Reverse leak- -CONt while measuring resistance, X l 0 range readi ng 0- 15mA . E mi tter age current of transistors and collector connected instead read f or 0-l 5OuA Xlk and I."o. 0-l 50mA for X 10k r ans es . Voltage across Reads reverse DC voltage of 3V-0 while measuring resistance; X lk terminals through X 1.

( 7 ) LV (blue)

(8) dB (red)

A F output

- 1 0 - +2 2 d B f o r 10VACrange.OdB is established a t 0 .7 7 5 V ( l m W through600sl') ACV rdg dB =20l og,o 0.7 7 V 5 -9 -

- 8-

5

Difference between voltage and current measurements. Fig. 2-A is a standard voltage measurement,where the potential difference between 2 points is checked, for which the meter is connected in parallel with load, while -B checks the current supplied by power and consumed by load, where the meter is connected in serieswith the circuit. Basically, the difference is whether the meter is connected in parallel or in serieswith ioad. The latter connection accompaniesthe trouble of cutiing open the circuit being checked.
Itflu

6 Voltage measurementand internal impedance. There are 2 instancesof voltage measurementby parallel connection. In case of Fig. 2-A, there exists no high impedance corresponding to Re of Fig. 3. Power supply source has its own internal resistance, but it is so small as can be ignored for voltage measurement,and the loss of current consumption by a tester is practically nil the m e t e r r e a d i n g E p . B u t , a s c a n b e n o t e d i n Fi g .3 , th e circuit condition changeson account of R4 present and 200kQ of the tester connected in parallel for measurement. Consequently, the YX 3 6 !TR I'VR AN G' E. meter reads 3.77V against R ,=l 0 i V X2 0 kl =l Ski it the actual 4V resulting in
mk!

h'Zu ( Ep It) tu
EP

Zn+o

Fig. 2 In respect of measurement loss, the bigger the impedance of the meter(Zu) is, the smaller is the current (Iu) required for measurement for the former, and, on the contrary, the smaller the impedance of the meter is, ( I r - c un e n t the volta ge lo ss (dr op) by I r x Zu. consumption) Thus, high accuracy data are obtained by the YX-360TR because of its very small current loss of 50uA for DCV and l25uA for ACV measurementsat full scale, the voltage drop for current measurement being 250mV.

some error. Therefore,when measuring such a circuit, where R is usually replaced with a tube or a transistor, the circuit impedance and Fig. 3 internal resistance of the voltage range of the tester used for. measurement must be referred to each other in reading the data o b t a i n e d . I n F i g . 3 , t h e c i r c u i t i m p e d a n ce i s a b o u t l /1 0 of the impedance of the tester, and reading error of within -5% can be ignored, though the bigger the internal impedance of a tester, the better. The high impedanceof 20kCl/V for DCV and 8kC2/V for DCV of this instrument displays its full ability in the voltage measurementof high impedancevoltage amplifying circuit, AVC, AGC and transistor bias circuit to obtain high accuracy data.

-1 0 -

-

ll

-

ACV measurementon OUTPUT terminal. The negative lead is connected as usual to the -COM a n d t h e p o s i t i v e l e a d t o t h e O U T P U T te r m i n a l . A condenser is interconnected in series with the OUTpUT and * terrninals to cut off DC element present on the circuit to read AC signal alone on the meter. Besides checking AF output voltage, this terminal is available to detect signalsin TV servicing. For instance, on the AC 50V range is detected the presence of the horizontal signal on the horizontal amplifying circuit and, similarly, the presence of the input signal on the synchronous detaching and synchronous amplifying circuitsResistance measurementand 0O adjustment. Resistance measurement is powered by internal batteries. They wear by use resulting in reading error of the measured value. For correct reading of resistance,the sensitivity of the indicator must be adjusted according to the voltage supplied by batteries. This is what is called Gohm adjustment for the indicator l^ .-i9 to read 0Q at full scale. It is ".'1i_ 1 o adjusted in the following way: As shown in Fig. 6, the range selector is placed at the range being used. With the + and -COM terminals shorted together, the pointer moving toward 0,il is adjusted by A ... OO ADJ turning 00ADJ to the right or left B ... Reading O in order to place it exactly on 0 of the scale right. The pointer must Fig. 6 be adjusted each time the range is moved.

rl il
Fig. 4 Fig. 4 above is a sample measurement of a transrstor circuit. It will be useful for trouble-shooting and discrimination of the type of the transistors used if you are acquainted in advance with the proper use of NpN and PNP transistors and the fact that Ge type shows low V ne a nd Si typ e h igh Voo. Use of HV probe for TV servicing. 25kV HV p rob e is av ailable ex t r a. I t is c onnec t e d a s shown in Fig. 5 placing the range selector switch at the positio n ma rke d PRO BE. The DCV 0-25 0 scale is used r eading 25k V at full scale.This probe can only be used for measurement of hieh impedance circuit voltage like thc "v_-:.":", anode and focusing voltages of a CRT for television use. Fig. 5

I

l

-

1Z

-

-13-

Polarity of terminals for resistancemeasurement As shown in Fig. 7, the polarity of terminals is reversed for resistance measurement, the + jack being in negative and -COM f-g--",), oo, jack in positive potential, the batI tery terminals being inverted in the i6t_"o* me ter. It must be remembered i[O ., :"^ when testing polarized resistance like transistorsand diodes (iunction type), etc. So must it be when testing the leakageof electrolytic capacitors.

Replacement of batteries Wh e n t h e i n t e r n a l l . 5 V batteries are worn out, it becomes impossible to make 0Q adjustment for the X I range becattse it dissipatescurrent most. So is it for the Xl0k range where 9V battery (006P) i s c o n s u m e d .T h e b a t t e r i e s needs immediate replacement. Uncover the meter by moving the rear bolt. Fig, 8 shows how to replace the worn-out batterie s.

Fig. 8

Currentconsumption resistance in masurement
Subject to the unit being tested, its impedance changes while measuring resistance on account of the current flowing in the unit, or the voltage it is impressed with. Some abnormal state may be recognized due to selfheating. It must be well noted for each ranse used when, fo r instan ce . m eas ur ing t he DC r es is t anc eo f a thin-wire coil an d a bulk - t y pe s em ic onduc t or l i k e a thermistor. The LI and LV scaies provided check current consumption and voltage load very effectively in t hes e mea su reme nts .
Sw. position M a x. cu r r e n t co n su m p tio n l5 Om A 15mA 150 uA ( 6 0 u A) N{ax. voltage across terminals

10 dB scale.
dB (decibel) is measured in the same way as ACV measurementreading the dB scaleinstead. Because the human ear is analogous to logarithmic variation, the input/output ratio of an amplifier and transistor circuit is expressedby logarithmic value dB to save complicated calculation. For a coupled circuit of a definite impedance, power can be compared by simply expressing the voltage (current) ratio by dB. The dB scale provided is graduated to read from OdB to +22d8 on the reference of OdB at 0.7'75Y which is the voltage when I mW is dissipatedacross600C2. Most frequently, the input and output circuit impedances of audio amplifiers are not necessarilystand-

XI x10 xlk x l0k

3V 3V 3V ( 12v )

ardize d fo r 60 0Q, and t he dB v alues m eas ur ed by a t ester are no thin g but v olt age v alues r ead in d B corre sp on din g to them . Howev er , when c om par in g AF v.oltagelevels by dB, the scale provided will surely save the trou ble of making c om plic at ed c alc ulat ion when it is nece ssary con ve rt t hem int o dB v alues . to

operation ll - as transistor tester
1 Preliminaries. This instrument uses its resistancerange for transistor tests,and so the pointer must be exactly-adjusted to zero bgfgge .colnecting a transistor fo. .n"usu.e_ent, tor w h i c h t h e P a n d N t e r n i n a l sa r e s h o r t e d t o g e i h e r a n d th e p o r n t e r i s a d j u s t e db y O e A D J . 2 Measurementof lcEo (leakage currentl. 2-l A small-sizeTR (hereinafter a transistor is referred to as TR) is checked on the Xl0 e(l5mA) range, and a large-size TR on the X I f2 range. 2-2 An NPN TR is connected as shown in Fig. 9_A, and a PNP TR..B.

F or mea su reme nt on t he I 0V r ange, t he dB scale (-l0dB-+2 2d 8) is r ead dir ec t ly , buq when m eas u r e d on. t he 5 0V ra ng e, 14dB is added t o t he r eading on t h e scale, a nd o n the l50V r ange, 2gdB is added. Thus , the nraxrmu rn d B rea da ble is 22+ 19= 56( dB) m eas ur e d on t he l5 0V ran ge .

L>:qC

'"'""d5
I c

\ .ll, ;[j, :

N \
AASE

Fig. 9 Represented electrically, Fig. 9 may otherwise be as Fie. lO. where the section on thl right of the N and P terminals .\'"'l_enclosed in the dotted line r +i l corresponds to the internal t!!el \ crrcuit of the tester. Fig. l0
lr -

:-J

In Fig. 10, the current flowing across the p and N terminals is I..o (reverseleakage current) of the TR, and the quantity of the leakagecurrent is read on the L EAK sca lein m A. For a Si TR, this current is too small to read.
J-Z

.A

d e t e r m i n e d b y R . F o r a g o o d T R , I c xh ,n i s l e r i to the collector resulting in so much clrrrcnt increase a n d h i g h e r r e a d i n g o f t h e m e t e r . T h e q u a n ti ty o f th e c u r r e n t c h a n g e c a n b e s c a l e do u t a s h r r o n th e m e te r to read the amplification degree. Extra connector for h|e fie?sDlemeflt.

2-5 There will be some leakage current read even for a

good quality Ge TR, though there is some difference sub ject to its t y pe. I t will be 0. lm A- 2m A for a small- and medium-size TR, and lntA-SmA for a large-size one.

c\

\9-=

2-G lf the reading falls within the red LEAK zone of the I."o scale, the TR tested is passabie,but if it goes be yo nd the zon e c om ing near t o t he f ull s c ale,t h e T R is definitely defective. 2-1 Leakage current is little to do with voltage value showing constant current characteristic, but it is a great deal subject to temperature. Be aware of temperature rise while testing; it reads twice as much fo r +10 "C. 3 Measure men to f h re ( DC am pt if ic at ion f ac t or ) 0- 1 0 0 0 . 3-l Besides reverse leakage current, the amplification degree of a TR kinetically measuredalso determines the quality of a TR on a very simple theory. As a TR is con ne cted t o t he te ste r a s sho wn in Fig. 11, Fig. I l there flows I.r.o. A certain r e sistan ce (R) c onnec t ed across the N terminal and =tc I B a h FE g i Iceo+ the base of the TR causes r., = -l! the current I^ to flow - 18J-J

Fig. 12 The connector is connected either to the N or P terminal subject to the polarity of the TR. To the other P or N terminal unemployed is connected the emitter of the TR. The range switch is set for Xl0. The clips of the connector are connected to the c o l l e c t o r a n d b a s e , a n d t h e l e a d f r o m th e o th e r terminal of the tester, to the emitter. For a good TR, there will be a reading difference of big between O and @ of Fig. I 3. In @, when h =0 and with base Fie. open, only a little I.ro is read, and in ), I" flows and Ic changes reading an increasedvalue by Iu x hrr.

3-4

IJ

-19-

For a fa ulty TR:

(a) No reading at all for the c onnec t ion Q ) ; (b) No difference of reading bet ween, ! and O ; (c) For the Q,, reading gces beyond the hre scale and near to full scale.

i t b y t h e c o n n e c t i o n s o f F i g . 1 4 t o m ea su r eIr ;i t i s impossible to have light emitted. The 3-volt internal battery layout of the instrument effectively checks it on the Xl range. While light is being emitted, the LI scale reads the current lr. and the LV scale the f o r w a r d v o l a g eV r .

3-5 Under the condition of Fig. [email protected] read_ing noted on is the blue hre scale. The value read is *.- which is the DC amplification degree of the TR test6"d. 3-6 Speaking exactly of a Ge TR, leakage current always flows to the collector resulting in so much reading error. Therefore, true value is obtained by deducting from hrr the value correspondingto Icco read. 4 Measurementof diode including LED. 4-l The connections of Fig. l4 read I, (forward current) or In (reversecurrent) on the LI scale provided. For the lk range, the scale reads 0-l50uA. for the Xl0 ran ge 0 -15 mA, and f or t he Xl r ange 0- l5O m A.

maintenance
1 Choosinga proper range. For increasedaccuracy, use the range nearestin value to the value being checked. For instance, a l.5V dry cell should be checked on the DC 2.5V range. Error will be bigger on the left half of the scale. For resistance measurement, reading is most accurate around in the middle of the scaie. 2. Measurementof unknown values. When measuring an unknown value, start with the highest range. After the first reading, the switch can be reset to a lower range for a more accurate reading. 3 Protection of tester.

4-2 lr reads high close to full scale, and I n v er y l o w practically no current flowing. 4-3 While measuringIr, the LV scale reads the linear (forward) voltage of the diode tested. For a Ge diode, it is usually 0. 1-0 .2V, an d f or Si diode,

-3::
; ; $<.,
Fig. l4

\\ *i;od
4

A tester is a precision instrument, and severeshock or vibration should be avoided. Do not leave it long where there is high temperature or moisture. Burnout damagethrough misapplication. 4-1 Misapplication occurs most burning out some internal resistor when high AC voltage of 100-200V is inadvertently applied to a resistanceor current range
_ LL -

0.5-0.8v.
4-4 The forward voltage of LED is generally more than 1.5V, while average testers will fail to check

' "' '

-2 0 -

with the selector switch placed on them unawares.

4-2 By virtue of the automatic protection circuit by Si
diodes placed in parallel with the meter movement, th e pu lse cu rrent f lowing int o t he m ov em e n t i s absorbed by them to safeguardthe moving coil from ge tting bu rnt.

supplementarydata
of 1 Arrangement Parts

4-3 A resistor may be burnt out on account of a high
volta ge o f a bo ut l00V m is applied. but it c a n b e replaced to restore the instrument to normal performance. Resistors most liable to burn are | 9Q (R2l) for th e X l ( Q ) r ange,and lQ ( Rl2) f or 0 . 2 5 4 , range. Refer to " supplementary data " at the end of the manual.

@, -g>@
R1

4-4 For a high power circuit of more than 200V, sparking
can cause some abnormality in the tester. Be certain to have the meter damaged repaired and undergo regular inspection and calibration by a warrantable test facility.

[email protected]
ddl
R t6 N R E

[email protected]

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_ L J_

2 Partslist
Par t N o Parr ltio
Resistor Descrrption

D es c r i pti on R es i s tbr ( l 6k Q) , s hunt R ec ti f i er ( c opper - ox i de)
Capacitor Capac i tor

R.S.
R26

R. S. R R R3 R R R R R8 R R10 R R R R R R R R

Y X R 26
R F OI

YX ROI YX Ri :) YX Rr,3

2kO) , mV calibr ation 240Q) , ser ies 5 k0) , 0.5V DC m ultiplier

D

R e si s to r
Resislor

c049 c050 v001 B 001
8005

c1 c2
( 1. 5V) 2 r equi r ed

YX R 0 4
YX R0 5

R e si sto r R e si sto r R e si sto r R e si sto r R e si sto r
Resistor

{OkO) , 2.5\' DC mulr jplier (l50kt2) , l0V DC m ulr ipjier (800k4) , 50V DC m ultiplier 4M Q) ,250V DC nultiplie

Var i s ter D r y c el l U M - 3 '
2k)

B1 B2
M

YX R 0 6
\ . X R O' \'\ R 08

D r y c el l 006P ( 9V)
Meier movement Q4A/

5N{ Q) , 1000V DC multiplie 3 kQ) , ser ies 920) , 2.5m A DC shunt 9O) ' lA) , 25mA DC shunt 0.25A DC shunt

P0l 6

Panel fr am e ( YX- 360T R ) Panel di al ( YX- 360T R )

YX R(rg YX RIi ) Y' X R I]

P 01 7 x0l 6
M Bl O

R e si s to r
Resistor

R ear c as e ( YX - 360T R )
Meter movement base

Y X R 12
YX R1 3 YX R Il YX R 1 5

R e si stg r
Res is to

T001

T er m i nal j ac k ( 2d) '
Range selector switch

3 r equi r ed

7.lk0) , 10V AC multiplier 320kQ) , 50V AC multipiier 6NlQ) , 250V AC mulr iplier 6 M Q) , lo0{ ) V AC m ulr inlr er
2k-4k0), ACV sensitivitv calibration

R Re si sto
Resisto Resisto Res s l.r

swlS K0r5
K 00? L0crz v005

R ange s el ec tor k nob 0g adj us ter k nob N am e pl ate ( YX - 360T R ) T es t l eads pai r 126)
Rear case bolt ( 4d)

YX R 6
YX RIT

\.X R 8
Yl i i t1 9

1k!l) , shunt
kQ). di,rde serie

R R csrst
Res
f

R t!) R20 R 2l R:] R 2l R . S. - R efer enc e S y mb o l

\' .\ R 3r) YX R 2 I
\ ' . \ R :3 YX R2 3

1kf2) , obm ser ies
Ql, Q ,l shunr

Re si sto r
Resistor Resistor

200Q) , S2 X10 shur t
(33.3kO), (l94kA), l0kQ), Q xlk !2 Xl0k shunt series

YX R 2 ] YX R 2 5

Re s

tor

0 [2 adjuste

R25

-2 4 -

-25-