Kyoritsu 3123A User Manual Page 1

KEW 3121A, 3122A, 3123AKEW3121A, 3122A KEW3123AINSTRUCTION MANUALHIGH VOLTAGE INSULATION TESTER

− 8 −Remove the battery compartment cover by loosening the screw located on the back of the housing case. Replace the whole battery pack. Alkaline

− 9 −7. Cleaning Meter CoverThis earth tester is managed by our company's quality standard and is delivered in the best condition after pass

DISTRIBUTORKyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations.2-

CONTENTSPage1．Features …………………………………………………………12．Specifications ……………………………………………2 ∼ 33．Instrument Layout ………………………………………………44．Operating Instructions

− 1 −1. Features●  Battery powered, the instruments test insulation up to 100000MΩ at 2500V for KEW 3121A, 200000MΩ at 5000V for KEW 3122A and

− 2 −KEW 3121A KEW 3122A KEW 3123ADC Test Voltage 2500V 5000 V 5000V 10000VMeasuring Ranges0∼2000MΩ/1000∼100000MΩ（automatic c

− 3 −KEW 3121A KEW 3122A KEW 3123ADC Test Voltage 2500V 5000 V 5000V 10000VMeasuring Ranges0∼2000MΩ/1000∼100000MΩ（automatic c

− 4 −④ ⑤ ③ ② ① ④ ⑦ ⑥ ⑧ ⑪ ⑩ ⑨ 3. Instrument Layout① Line Terminal② Guard Terminal③ Earth Terminal④ LED's for High & Low Range Indicatio

− 5 −CAUTION:BE CAREFUL ABOUT HIGH VOLTAGE PRESENT ACROSS LINE AND EARTH TERMINALS OF INSTRUMENT WHEN PRESS TO TEST BUTTON IS OPERATED. MAKE SURE TO E

− 6 −4-3. Insulation Resistance MeasurementWith the function switch set at OFF position, always connect the circuit under test to earth. Attach the te

− 7 −4-5. Use of Guard TerminalWhen measuring the insulation resistance of a cable, Ieakage current flowing on the surface of cable jacket an