Calibration Procedures for DIHIT. (l)~c Voltage Display cali:e!:~~i~n(usinq variab~e r~s~stor R27) (.J. J I

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1 Calibration Procedures for DHT (l)c Voltage Display cali:e!:in(usinq variabe rsstor R7) for Models KHP30S0 & KMP307S(except Model KMP300l l AC voltage G;neratorl" (J J LCD Disnlav A7 (0KV); Backliaht switch TRAC/LOK Swi tc '"7) \<+ :: 4S _Test Button Function sitch Ranae switch Connect the instrument to the Power Source(9VDC) calibration before conducting the 'calibration for Turn the function to the off position Also, set Trac/Lok mode switch to the Trac position on Model 3075 Set the range switch to the Hn range position(0hn, 00Hn or 000Mg) 3 Connect the output terminals of the instrument to the Voltage output terminals of the AC voltage generator 4 Apply 50Hz or 60Hz, 50V voltage to the instrument from ' AC voltage generator 5 At that time, the beeper sounds (intermittently and continuously) Make sure that the display on the LCD indicates the input voltage ', 6 Rotate variable resistor R7(0KV) so that the display on the LCD reads 50VAC 7 Press the press to test botton Make sure that the display reading on the LCD disappears and all the operations stop

2 () Zero Adjusment using' variable resistor(r4s) on continuity rang'e for Hodel KMP300,KMP30S0 & KHP307 nsert the fuse and set the fuse contact (This fuse should be installed individually on the instrument calibrated) Set the DC power source to 8 volts 3 Short the terminals with a cord 00MH long for Models 3050 & 3075 For Model 300, however, use the test lead(model 7030) supplied with the instrument 4 Set the Function switch to the Q position Set the Range switch to the,0000 position Set the Mode Switch to the TRAC(Hodel 3075 only) position 5 At first, turn R45 clockwise When the figures appear on the LCD display, turn R45 counterclockwise gradually until the display reads on t is not good to display "0" & "" repeatedly The display must be adjusted to completely "0" 6 nput loog and make sure that the display reads over 960

3 (3) Adjustme!!t for setting Zero using variable resistor{r37) for Models KMP300, KMP3050 & KMP3075 Set te DC powel source to 8V Short the instrument terminals by nsertinq the 00MM lonq cord for calibration On Hodel 300, use Test Lead{Hodel 7030) supplied with the instument 3 Switch off the instrument once to cancel out the resistance, of test lead itself 4 Set the Function Switch to the Q position Set the Range Switch to the 00 position Set the Mode Switch to the TRAC(Model 3075 only position 5 Adjust R37 so that the display on the LCD reads between 003,0 and 005,0 The display of "00" is not allowed 6 Make sure that 00 is displayed acculately on the 00 range 7 The fuse used for the adjustment should be furnished with the instrument

4 (4)Check of output current for insulation resstance ranges for Models KMP300, KMP3050 & KMP3075 r Htor "CO loo4cj r: Resistance Box Function Switch Resistance ox 500V 5 0 0ta "'",OOOV lhn Check 500KD only for Model 300 Check MD only for Hodel 3050 & Hodel J07! The monitor should be set to the DCmA range Set the Function Switch to the,000v position (no setting for Hodel 300) Note: Where output current is more than lma, there is no need for the bar graph to reach the "over level" ( X) position t should come to at least this position x j' ::=:_:::: :to,' ""!R, Ct ':f C g 50Y 0 ; rl rl r, St the Range Switch to the 0Ma position 4 Set the Hode Switch to the TRAC(Hodel 3075 only) position 5 Set the resistances of the resistance box as shown in the table and make sure that output current is between lma and 3DA

5 SYK DESCRPTONSPx QUANT SYM DESCRPTON SPEC 9U ANT C t MC34063 (R3KO3A) HEr AL GRAZE RFS ; KF n TLC7MCP R9 TR,6 T! n,3,5,7 Dl, Z SiDODE 05,5,4 SiDODE ZENER DODE N 4: R47,53 R46 R54 JUKPER 5 "3 KVSF637 A B5k V lokj Xl BUZZER FUSE FUSE SSOlF O5A/ZSOV TRNSFORHER Ll NDUCTOR KETAL FLK R V 976K SW3 Cl,4,6 C, HKT CAP HUL T LAYER CAP H s, CERAH CAP == KF CAP ELECTROLYTC P 'lf!v pp/5v OOpP /kv 4700pP/kV 0047 pp/630v CAP! l!:/ n 470J /4V /V NAME, DATE CHECKER DRAFTHAN zs "=i/l

6 SYH C! C3 (C4) ts C6 C7 XC8 5\ DESCRPTO SPEC "! QUAi TR4 0 TRASTOR Si DODE BC37i i4«8f c : CS,lO CZl C3 CS, 0, C9 c9,"j RO R i, Rl,3,6, 8,33 R8,5,50 " 4,4 i louf/6v t Jvur/Jut! 47pP/5V i l!\4700 F OV!8v P,"!8 CERl)fC CAP OlJ P/5V i 3 ELECTROLYT C!P KULTUYER CAP 00 Jl F/50V i HKT CAP " CARBON FL RES " R4 7 i TRMMER POT 37, 4 3 ( Sl! SLDE SWTCH 'ESD765U i (S3) i (ROTARY STCH KYORTSU) () NAME : KKP307050/"ODEL3007/3005 (/3) DATE APPRnVAL i CHECKER ftx ' j :;T:i'" 99303

7 SYK Cl C6 C7 ts LCD TRl EL 0, DESCRPTON SPEC CPO C' " LCD TRANSSTOR EL SiDODE p PD75304GP ':;:,;:";,;: '::, :;\'o!j:,: :';':(',::O:! :i,! QUANT SY/i DESCRPTON p PD4030BG ppd74hc74g NJH555H DLC798P BC848B Rl$ SPEC QUANT Xl X T SW BUZZER CERAKCftt&=f TRANSFORKER TACT SWTCH PKHEPP400 CSA49HGC 655 SKHHPF 4 i NAME i DATE 99:095 PARS No KUP3075/: (3/3) APPROVAL CHECKER 4;S /i, ;:4 :':,/ 00 85JU DRAFTKAN ' 95

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