SH-88TR
Contents
1. 5 AC dB OUTPUT ACV 1 ACV OUTIPUTI 0 047 u F 400 V OUTPUT COM 2 TV DC AC DC AC TV FED HHDH O kQ MQ 1 X1 10 X100 X1k 10 k 0 2 9 30 MQ 2 COM 32. 5 1 HV 200 Z pee DCV DC 1 F DC 25kV 0 25 kV DCV NULL 1 DCV 6V 15V 60 V 150 V 600 V 2 COM DCV 3 DC 0 6 V 0 15 V 2 V 6 V 15 V 4 6 600 5 0 6
3. lt gt gt gt gt lt gt 65X20 500mA 250V 300 A 40 42 120 10 TEL 03 3253 4871 FAX 03 3251 7022 TEL 06 6631 7361 FAX 06 6644 3249 B 0120 51 3930 9 30 12 00 13 00 17 00 kehte http www sanwa meter co jp HEAL REREN no M oa Bao w 1 DpA LI SS A AN XSA X1k xtc ere ae mA x Fo N r DOR SE EP COM O OUT PUT O LED 0 047 u F 400 V CONTINUITY AA Adee 0 0 ADJ 4 DCV
4. 3 1 FAP 1 2 6 3 4 205 8604 RI AAT TH AHF 4 7 15 TEL 042 554 0113 FAX 042 555 9046
5. MODEL SH 88TR SH 88TR 2 1 tDCVEY BEX AP ABE NULL EMERE oS RAE TV FM 2 1 F 1F 10 F 3 LED LED
6. EW 10 ce 11 12 13 14 1 15 Il se 2 I ub 11 WT Q AAN A CK G al oS f 1 aan R i ae ae SQM Hee Shea 3 Sis ast 4 en ee O pczonay 02 ERJADJ W OO DCV DCA ACV 12 VEL EE BE oo H DCV ee CO CE ER EE EN Ss si 3 V AC3V HER oo EA fa hrg ee LI am DC 25 kV 50 y ABLE ABR eee DR CLE LN CA NA
7. 3 4 5 6 This warranty is valid only within Japan MODEL SH 88TR ALL PURPOSE MULTITESTER With Current Control Type Zero Center Function SPECIAL FEATURES Broadened Ranges with Additional Functions With the adoption of a 22 channel switch and the inclusion of additional functions this tester provides a broad and powerful 35 ranges in all 1 Can be Used as DCV Zero Center Meter NULL 2 Usable as Capacitor Capacity Checker 3 Judges Continuity with Light and Indicates it with LED 4 Equipped with OUTPUT Terminals Series Capacitor Terminals 5 Safety Emphasis Measuring Terminals and Test Leads are Adopted 6 Double Protection Device Additional Measuring Functions with Use of Optional Accessories 1 As Transistor Checker If transistor hFE connector HFE 6 is attached the unit can be used as a transistor checker that can measure hrE from 0 to 1000 2 As DC High Voltage Meter With the attachment
8. A 1 6kVA VS 100 2 AC 33 Vrms 46 7 V peak DC 70 V 3 4 ee 5 7 Ci 8 a oe 9
9. DCV 7 O AC DC DCV 0 6F22 9 V DCmA 1 DCmA 507A 3 mA 30 mA 0 3 A 2 COM COM 5 COM Cx Cx 6 6 COM S Cx o Lf aa J Cx l Cx i n j 6 Cx
10. 5 PHROE SUH 0Q C 1 X1000 F X100 F 10 F 1 uF 2 COM 3 C zF 0 1000 o uF X1 F X10 F 10 X100 F 100 1000 F 1000 4 COM 0 Q ADJ C F oo
11. X 1000 uF 1000 y F C 10 dB 11 dB AC 3 V 63 dB 15 Siis 0 dB 0 775 V 1 mW 600 0 ACV eME Avemi Vy X1 X10 X100 X1k X10k ere BAW 3kQ 30k 300kO 3MQ 30MQ 200 2000 2kQ 20kQ 200kQ R6 1 5 V X2 020 20 200 2000 2kQ 6F22 9 V X1 LED X1 10 0 xX1kQ X100 Q COM hp 0 1000 X10 0 hr hrg PAT No 1306641 H No 1482137 150X100X36mm 280 g 5 X20 500 mA 250 V 1 1H TL 61 1 HV 10 C YS hFE HEFE 6 3 DCV A amp ACV 0 30 mA A 30 mA 50 4A 50 wA X2 wA 0 25 2 0 50 u AX L Tii 4 50 A DCV 0 12
12. Q AC DC NULL 3 4 60 85 5 p 6 7
13. DCmA O X ACV 1 ACV 3V 12 V 30 V 120 V 300 V 1200 V 2 COM 3 DCV A amp ACV 0 30 0 120 2 V 30 V 120 V 12 V 3 V AC 3 V A ACV 5 3V 12V 30V 40 Hz 30 kHz 3 3 kVA dB 1 10 11 63 6 2
14. LED 4 OUTPUT 5 6 7 HV 10 DC0 25 kV A 1 0 0 2 DCV
15. DS DCV H 1 DCV 0 12 V 3V 12V 30 V 120 V 300 V 1200 V 2 COM COM 3 DCV A amp ACV 0 30 0 120 2 V 30 V 120 V 6 0 5 P 5 LI ee BAAT MEE Y Pa ru WEL at D gt
16. Cx o Tm 3 PF Cx Cx P F Cx Sania o Ez SH 88TR No HHLULHLL we US Feat TA NBRHtBAtsA 2 4 4 3 101 0021 03 3253 4871 AL 1 2
17. Cx Cx 7 C T I Imaxe _ Tr Imax E DCV R rar 1 h Cx 1 Imax Imax 1 2 Imax O P HE I Cx T x I Imaxe GR M P Tm METER FULL SCALE RESPONSE TIME Tm f s 2 OP I P
18. Q 0 3 k Q X X1 X1k kQ Cr sng 4 4 LAZ 0 Q ADJ 4 COM 0 0 N X1 1 0 Q 5 0 Q 6
19. 0O 9 A 500 mA 250 V A 500 mA 250 V X1 0 Q 1I hrg HFE 6 hrE Ic Ig 0 1000 100 0 9 TRILJA hre C OR z TR
20. OFEFF 7 LED X1 10 Qn CONTINUITY LED TR TOC 0 Q X10 0 COM 0 9 ADJ 0 9 hFE 1 2 hrE 10 F TR NPN TR COM PNP TR 3 2 TR 4 NPN TR
21. ACV 3 dB AC3V 600 9 0 dB 1mWE UT dB 0 dB 1 mW 0 775 V 4 12V dB 30V 1200 V dB 0 12 20 2 40 63 dB 12V 10 dB 12 dB 22 dB 8 1 X19 1 5 V R6 2 2 X10kO 9V 6F22 3 4 X12 8 9 DCA C 100 V
22. Fig 4 i 0 Q adjustment Measurement of resistance resistor 4 Zero Ohm Adjustment 0 Q ADJ Before using the unit short circuit the and COM terminals as shown in Fig 4 and align the indicator needle to 0 Q line using the zero ohm adjuster This operation is also called Full scale adjustment This adjustment should be completed before beginning measurement If this adjustment is made each time the range has been changed cor rect measurements can be explected 5 When measuring resistance in circuits be sure to turn off the power switch in advance Particularly take care not to apply any voltage to x1 and X10 ranges Replacement of Battery 1 When it becomes impossible to make zero ohm adjustment in x1 Q range the 1 5 V R6 batteries contained inside have been exhausted In this case replace the batteries with two new ones 2 When it becomes impossible to make zero ohm adjustment in x 10 kQ range only replace the 9 V 6F22 battery with new one 3 When replacing battery loosen the 4 X12 screw on the rear case remove the case and insert the new batteries correctly with the right polarity as shown in Fig 8 Replacement of Fuse BATTERY BATTERY 1 Should a voltage higher than AC 100 V be applied to the tester by accident while the range is left turned to some current ranges par ticularly 0 3 A range or ohm x1 and x10 ranges the inside fuse burns out 2 When the fuse has burned out the un
23. PNP TR COM TR hrg TR Ic IB hrg BA Mya 5 TR a NPN sae come o 8 11 sd 11 f dhek AS com Yk a om CE E FRR JN MFRS CE TR LED IF Sing 12 12 Q XX1 X10 LED Ir LIL X1 II 10 X10
24. 10 dB 11 dB AC 3 V range 63 dB Frequency dB 0 dB 0 775 V 1 mW 600 Q impedance circuit Same as ACV Same as ACV Range Indication x1 x10 x100 xik x10k Max value 3kQ 30kQ 300k2 3MQ 30MQ a oh cad Inside battery Central value 209 2002 2kQ 20kQ 200kQ enon scae Re 1 5 V x2 Min value 0 22 20 202 2002 2kQ 6F22 9 V x1 Continuity indication LED In x1 range Lights below 10 Resistance Q with Continuity Indication Leakage x1 kQ range The current that flows Curr nt x100 Q range 5 of scale between and COM I CEO LI x10 Q range length terminals during x1 Q range measurement DC Currant Amplification Transistor hre O 1000 in x 10 range Factor hFE Optional hFE connector must be used 3 of scale length e Accuracy Assurance Temperature Hurnidity Range 2342 C 75 RH max No condensation e Operating Temperature Hurnidity Range 0 43 C 80 RH max No condensation eDimensions and Mass 150mm x 100 mm x 36 mm about 280 g e Accessories One spare fuse 5 x 20 500 mA 250 V contained inside the tester one pair of test leads and an instruction manual e Optional accessories hFE connector HFE 6 high voltage probe HV 10 and carrying case 4 Measurement of DC Voltage DCV Usage as Center Zero Null Meter 1 Range of Use DCV 6 V 15 V 60 V 150 V 600 V 2 Measuring Terminals and COM The same instructions as those for measuring DCV apply 3 Ind
25. AC 3 V on which the graduations can be read directly 4 Turn the range selector switch to the requried ACV range Measurement of Capacitor Capacity C 1 Ranges of Use x 1000 uF x100 uF X10 uF x1 uF 2 Measuring Terminals and COM 3 Indicator Scale Use red colored scale C uF The scale is from 0 to 1000 to and the unit is uF In X1 uF range only read the indication directly while in X10 uF range multiply the reading by 10 in X100 uF range multiply the reading by 100 and in X1000 uF range multiply it by 1000 to obtain true values 4 Make full scale adjustment for each range as the measurement of Capacitors also uses the resistance measuring range See the sec tion for the measurement of resistance In other words short circuit the and COM terminals before mea suring and align the needle to position on the extreme right of the scale by 0 Q ADJ 5 Connect the capacitor Cx to be mea sured to the and COM terminals At this time take care of the polar ity of Cx Make sure that COM terminal of the unit is connected to the positive terminals of Cx as shown in Fig 6 When there is fear that Cx may be charged short circuit both ends of Cx and discharge It before doing the measurement 6 By the charging current flowing to Cx the needle swings in the full scale direction But at a cer tain point it begins to return to ward zero The value of Cx is this highest point indicated by the need
26. for instance This cover is coated with antistatic liquid If the antistatic ef fect weakens after many years of use it is recommended as stop gap measure to wipe the cover surface with cloth wetted with water solu tion of a detergent containing antistatic agent Measurement of DC Current DCmA 1 Ranges of Use DCmA 50 uA 3 mA 30 mA 0 3 A 2 Measuring Terminals and COM As a rule insert the red lead into the terminal and the black lead into the COM terminal 3 Indicator Scale Use black scale DCV A amp ACV The scale is from 0 to 30 and the units are mA and A In 30 mA range read the indications directly while in other ranges make necessary conversions to obtain true values For 50 uA only use black scale 50 uA x2 uA Read graduations 0 to 25 by doubling them into O to 50 uA Caution When measuring current be sure to make the connection in series via load Also avoid absolutely applying any voltage Fig 3 Good measuring method Bad measuring method Measurement of AC Voltage ACV 1 Ranges of Use ACV 3 V 12 V 30 V 120 V 300 V 1200 V 2 Measuring Terminals and COM 3 Indicator Scale Use black scale DCV A amp ACV There are two kinds of ranges 0 to 30 and 0 to 120 and the unit is V In 30 V and 120 V ranges read the indications directly while in other ranges make necessary conversions to obtain true values but above 12 V For 3 V only use black scale
27. of high voltage probe HV 10 the tester can be measure TV and other direct current high voltages from 0 to 25 kV Cautions in Using This Tester 1 Check Zero Position of Indicator When the indicator needle is not above the zero line on the extreme left of the scale align it to zero line by turning the zero adjuster in the panel center 2 Check Position of Changeover Switch Use the polarity changeover switch of this unit only for DCV center zero meter measurement All other measurements are made with this switch turned to Q AC DC If the switch js left turned to the center zero side the indicator needle keeps pointing to the meter center making other measurements impossible 3 Select Correct Measuring Range By using the range selector switch select the right range that suits the object to be measured When measuring anything whose approxi mate value level is unknown begin with the largest range and then switch gradually to the most appropriate range the range nearest to the value of the object measured Particularly when high power commercail AC voltages more than 100 V are measured It is impor tant to take enough care in this respect 4 Take Good Care for Keeping Do not leave the unit for a long time in places where it is exposed to shocks vibrations direct sunray hightemperature and humidity 5 Take Care of the Indicator Protective Cover Do not rub the surface of the indicator cover strongly with dry cloth
28. terminal 3 Indicator Scale Use black colored scale There are two kinds of scales 0 to 30 and 0 to 120 and the units are V In 30 V and 120 V ranges read the indications directly while in other ranges make necessary conversions to obtain true values 4 Turn the range selector switch to the required DCV range Normally fix the black negative test rod to negative potential point ground line and connect the red positive rod to the test point to be measured Take good care about polarity when measuring voltage drop between the two ends of resistor negative oscillator circuit voltage and tran sistor circuit voltage 5 When measuring high voltages used in TV connect the optional HV probe as shown in Fig 1 1200 A Fig 1 HV Probe DCV DC N B Read graduations 0 to 25 directly in kV units on black scale DC 25 kV 480 MQ Examples e Detection of horizontal signals in horizontal amplification circuits e Detection of any input signal in sync separation and sync amplification circuits Resistance Q kQ MQ 1 Ranges of Use x1 x10 X100 x1 k X10 k 0 2 Q 30 MQ 2 Measuring Terminals and COM 3 Indicator Scale Use blue scale Q It has graduations from 0 to 3 k and the unit is Q In x1 range read the graduations directly in X1 kQ range also read the indica tions directly but in kQ units while in other ranges amplify the readings by the raspective multiples to obtain true values
29. 2 2 32 40 52 Example f 7 dB value is obtained in 12 V range add 12 of ADD dB value of 12 V range to it True value is 7 12 19 dB Measurement of ACV with OUTPUT Terminals Including Measurement of Low Frequency Output The method of measurement is the same as in the case of ACV How ever connect the test lead to the OUTPUT terminal with capacitor 0 047 uF 400 V OUTPUT and COM terminals are used This measurement can be used when it is necessary to cut DC voltage and measure AC signals only in TV audio and other circuits where DC and AC are used mixedly and when the existence of various signals in TV circuits have to be determined MECHANISM OF CAPACITY MEASUREMENT BY THIS TESTER So Imaxe CxR Imax E Inside battery voltage V DC R Inside resistance of the device Cx Capacitor uF When Cx is connected between measuring terminals T1 and T2 Imax equivalent to E R flows at first as charging current Imax is the same as the current that flows when T1 and T2 are shortened At this time the meter indication rises as Imax gives rotating power to the needle See the locus 0 p in the figure But T minutes later charging current begins to drop be cause of Cx in a relation that is ex pressed by max e fog Locus for the charging current is M P Tm is the time in sec needed for T Tm T reaching full scale Affected by the charging current continuing to dr
30. Polarity of Tester Terminals when Resistance is Measured As shown in Fig 5 when measure ment is made in ohm range the nor mally terminal becomes the nega tive terminal and the normally ter minal the positive terminal This is because the negative pole of the inside battery is connected to the positive terminal of the tester Keeping this relation in mind helps when measuring polar resistances such as those of transistors and diodes junction semiconductor and when testing the leakage of electrolytic capacitors Fig 5 About Inter Terminal Current LI Ll scale is graduated to measure the value of the current that flows between the and COM terminals during resistance measurement See Fig 5 In some objects measured the resistance varies depending on the current that flows across them and the voltage that is applied to inteterminal them Also abnormal condition can xn somA sv occur because of self heating There fore the user must understand this relation well for each Q range before doing the measurement The brackets mean the graduations need conversion range Therefore make full scale adjustment 0 Q adjustment of the indicator needle before doing the measurement Just as before measuring resistance turn the range to X10 Q short circuit the and COM terminals and align the needle to 0 Q line with 0 Q ADJ Measurement of hre DC Current Amplification Factor 1 Connection of Connector
31. Saiilid SH 83TR MULTITESTER INSTRUCTION MANUAL 708 ast Sans A 2 4 4 101 0021 03 3253 4871 2 7 2 556 0003 06 6631 7361 SANWA ELECTRIC INSTRUMENT CO LTD Dempa Bldg Sotokanda2 Chome Chiyoda Ku Tokyo Japan Cova S SLINK 14 1201 2040 2040 23 2 75 RH O 43 C 80 RH BAB ACES seeps 0 0 12 V 3 V 12 V 30 V 120 V eee RYA EEE 300 V 1200 V 25 KV 2 5 25 kV HV 1200 VELT 20k0 V DCV z EREE 0 6 V 15 V 60 V 150V 600V DCV a NULL 40kO V 0 50 A 3 mA 30 mA 0 3 A DCmA 50zA DC 0 12 V 2 5 300 mV 0 3 V 12 V 30 V 120 V 300 V 1200 V pees 30 Hz 100kHz 1dB ane 3 VDA 10H 20kHz t3 0 VAT a
32. d range are properly set in accordance with the measure ment 12 Never use meter with wet hands or in a damp environment 13 Never use test leads other than the specified test leads 14 Never open tester case except when replacing batteries or fuses Do not attempt any alteration of original specifications 15 To ensure safety and maintain accuracy calibrate and check the tester at least once a year 16 Indoor use HOW TO USE THIS TESTER Indicator Scale Dial 5 lt CO yy bo g gt 80 177 gt Y 0 ey ar lt lt Q Ph 7 A CVA ACV lt 0 o a S 8 3V DCVA Oe eg RACV So p o TA SS 5 100 20 ene o5 25 Oo NULL F oo 00 200 5800 7 3 C uF Sale peta 7 hfE SE Js Li uA mA 9 6 soA x2zA amp DC25kV dB A m NULL 02 EXJ ADJ W sanua MODEL SH 88TR pc20ko y PROTECTION AC_9kQ V SANWA ELECTRIC INSTRUMENT CO LID MADE IN JAPAN Descriptions of Scales and Other Parts Resistance Q scale Blue color Scale for DC voltage and current DCV DCmA and AC voltage ACV above 12 Ve Black color Scale for center zero meter DC voltage DCV Blue color 4A Capacitor C SCIE arini Red color Independent scale for AC voltage 3 V AC 3 V Black color Scal
33. e for transistor DC current amplification factor hFE Blue color D Scale for InterTerminal current LI Black color Scale for DC high voltage DC 25 kV and DC BU WA CUTEM oe a Black color 9 Decibel dB scale i Red color Internal resistances of voltage ranges GD MINO sssi The purpose of this mirror is to help read the indications correctly by aligning the needle seen directly by the eye with the needle re flected in the mirror 6 Cautions in Measuring HighVoltages of more than 200 V a Check that the range selector switch is turned correctly to AC 300 V and that the test leads are connected as mentioned in 2 b Before connecting the tester turn off the power switch of the power circuit to be measured After connection turn on the switch and do the measurement c Do not touch the wires and tester during measurement After the completion of measurement turn off the power switch before disconnecting the tester Measurement of Low Frequency Output dB 1 2 3 Ranges of Use 10 11 63 dB 6 ranges The way of measurement is same as that in ACV The scale is graduated in correspondence with AC 3 V range and only output in 600 Q impedance circuit can be read directly in dB value 0 dB 1 mW 0 775 V For 12 V range or higher obtain true value after adding ADD dB value in the following table to indicated value 30V 120V soov ADDdBvalue 0
34. icator Scale Use blue scale DC There are two kinds of scales 0 to 6 V and 0 to 15V and the unit is V In 6V and 15V ranges read the indications directly while in other ranges make necessary conversions to obtain true values 4 Turn the range selector switch to the necessary range between 6 V and 600 V 5 Turn the polarity changeover switch to the position of gt As the indicator needle moves toward the center immediately align it to 0 line on scale using the zero center needle adjuster NULL S 02 GS ADJ QO Sr 6 Following the above instructions use the unit as null meter to mea sure DCV 7 After the completion of measurement do not forget to return the polarity changeover switch to Q AC DC Caution As a rule use the center zero null meter in the designated DCV range only If the needle fails to reach the center zero line after ZERO ADJ knob is turned replace the 9 V battery contained inside gt Fig 2 6 Continuity Check with LED When measurement is made in X1 range if the measured resistance value is less than around 10 Q continuity indication LED to the top right of the dial lights up The brightness varies depending on the resistance value This LED indication is very convenient for simple continuity and broken wire tests as It responds faster than the needle and it shows the result visually and quietly without the buzzer noise NOTE
35. it does not function So re place it with the spare fuse 2 5x20 mm 500 mAV250 V which is posi tioned as shown in Fig 8 MEASUREMENT OF TRANSISTORS USE AS TRANSISTOR CHECKER With the attachment of the hFE connector HFE 6 this unit can measure the DC current amplification factor hre Ic IB of transis tors in the 0 to 1000 range Fig 9 4mm tester connector pin Transistor collector terminal connecting clip Transistor base terminal connecting clip 8 hee Preparations before Measurement To measure transistors this unit uses the resistance measuring MEASURING RANGES AND PERFORMANCES 0 0 12 V 3 V 12 V 30 V 120 V 300 V 1200V 2 5 of max DC voltage 25 kV graduation Internal resistance be used Zero center meter type 5 of max Internal resistance graduation 40 kQ V tage DCV DCV To measure 25 kV optional HV prove must below 1200 20 kQ V DE E 0 6 V 15 V 60 V 150 V 600 V DC current 0 50 uA 3 mA 30 mA 0 3 A 2 5 of max Terminal voltage drop DCmA 50 uA is common with DC 0 12 V range graduation 300 mV AC voltage aT F Ao V 1200V 3 of max intemal resistance ACV 30 Hz 100 kHz 1d Below 30V graduation 9 kO V 40 Hz 30 kHz 3 5 for 3V only Range Indication Min value Max value xX 1000 uF 1000 uF 1F Indicates max Capacity C x100 uF 100 uF 0 1 F AR deflection by X10 uF 10 uF 0 01 F charging current C x1 uF 1 uF 1000 uF Low
36. le When the value of Cx is Fig 7 large the swing of the needle is large and when the value is small the swing is also small 7 If a capacitor measured once has to be measured again discharge it before making the connection A Electric double layer capacitor can not be measured READ FIRST SAFETY INFORMATION N WARNING To ensure that the meter is used safely follow all safety and operating instruction 1 Never use meter on the electric circuit that exceed 6 kVA 2 Pay special attention when measuring the voltage of AC 33 Vrms 46 7 V peak or DC 70 V or more to avoid injury 3 Never apply an input signals exceeding the maximum rating input value 4 Never use meter for measuring the line connected with equip ment i e motors that generates induced or surge voltage since it may exceed the maximum allowable voltage 5 Never use meter if the meter or test leads are damaged or broken 6 Never use uncased meter 7 Be sure to use a fuse of the specified rating or type Never use a substitute of the fuse or never make a short circuit of the fuse 8 Always keep your fingers behind the finger guards on the probe when making measurements 9 Never apply voltage to the current terminal If voltage is applied to the terminal the meter occurs short circuit 10 Be sure to disconnect the test pins from the circuit when changing the function or range 11 Before starting measurement make sure that the function an
37. op the meter indication which has been rising from 0 to P turns downward at point P heading in the direction of original point O The thick line represents the locus of meter response If Cx 0 Q the indication keeps dropping and reaches full scale Tm seconds later The position of point P is proportional to the size of Cx Therefore if points C that vary with Cx are marked in capacity values on the scale Cx can be measured from the position where the meter turns downward APPEARANCE AND PARTS NAMES 30 20 NII blir TU EE e I ge AC3v A uA mA i 6OwA X2zAj amp DC26kV1 oa ERAN w CORRE o KO 150mA LI Mi aN ee aes reas X1k xr ea Soma X10 thea Fee x F za r p DES ca Indicator zero adjuster Measuring terminal Indicator needle COM measuring terminal 3 Indicator scale dial common for negative Continuity indicating 9 Series capacitor terminal LED CONTINUITY OUTPUT 0 047 uF 400 V Range selector switch Polarity Changeover switch Combination zero ohm Center zero changeover adjuster 0 Q ADJ and switch center zero needle Panel adjuster Rear case 3 Measurement of DC Voltage DCV 1 Range of Use DCV 0 12 3 12 V 30 V 120 V 300 V 1200 V 2 Measuring Terminals and COM As a rule insert the red lead into the terminal and the black lead into the COM
38. s Fig 10 oy NPN TR PNP TR N p N P cxi0 O 0 0 ax COM COM E s B C a B c Mo J 2 Then depending On the polarity of the transistor to be tested insert the hrE connector into the COM terminal of the unit if it is NPN transistor and into the terminal if it is PNP transistor 3 This connector has two lead lines each with an alligator clip at the end Connect the black clip to the base terminal of the transistor and the red clip to the collector terminal 4 Then connect the other measuring terminal terminal if the transis tor is NPN and COM if PNP to the emitter terminal of the transistor to be tested With this connection the tester needle responds indi cating the lc lg hrE value on blue hrE scale Testing of LED Light Emitting Diode Application of Ohm Range Indication of IF Fig 11 After making the connection as shown in Fig 11 measure in X 1 Qor X 10 Q ranges When the LED is energized it lights The value of the current at this time or IF is indicated simultaneously on the LI scale of the unit
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