Kyoritsu 4300 User Manual

Instruction ManualSimplified Earth TesterKEW 4300

̶ 8 ̶ 4. Instrument layout (1) Instrument BodyName Details1H+S(C+P) terminalTo connect the replaceable metal tip MODEL8072 has been installed and del

̶ 9 ̶ (2) LCD● Symbols displayed on the LCDIndicate the batteries need to replace.Show the measured results. Appear when the measured result exceeds

̶ 10 ̶ 5. Accessories● Test leads (1) MODEL7248 – with Alligator clip and Flat test bar(2) Banana plug, both ends, black＋　　　　　　(3) Alligator cli

̶ 11 ̶ 6. Getting started6-1 Battery voltage check (1) Please refer to “10. Replacing batteries” in this manual and insert batteries in KEW

̶ 12 ̶ [How to replace the parts] Detach the metal tip by turning the red plastic parts counter clockwise. Install the meta

̶ 13 ̶ 7. Voltage measurement# DANGER● Never apply voltages exceeding 300V, max over-voltage protection, to this instrument. 7-1 Measurement p

̶ 14 ̶(3) The measured voltage is displayed on the LCD. Take the reading without pressing the Test button. The instrument judges DC or AC

̶ 15 ̶ 8. Earth resistance measurementThis instrument can measure the earth resistances of distribution line, internal wiring and electrical

̶ 16 ̶8-2 Measurement procedure(1) Connect the test leads to the instrument. Plug the L-shaped Banana plug of MODEL7248 into the E termi

̶ 17 ̶ ● The displayed value should be less than 10V. The warning LED starts blinking yellow when the earth voltage is 10V or higher. (The L

Contents1. Safety warnings ･････････････････････････････････････････12. Features ･･･････････････････････････････････････････････43. Specification ･･

̶ 18 ̶ 9. LCD backlight and LED lightThe LCD backlight and the LED light on this instrument turn on/off automatically in relation to ambient bri

̶ 19 ̶ 10. Replacing batteriesWhen the Battery symbol appears on the LCD, replace the batteries with new ones. # DANGER● Never open the Battery comp

̶ 20 ̶MEMO

̶ 21 ̶MEMO

DISTRIBUTORKyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations.11-04

̶ 1 ̶ 1. Safety warningsThis instrument has been designed, manufactured and tested according to IEC 61010-1: Safety requirements for El

̶ 2 ̶# DANGER● Never make measurement on a circuit in which the electrical potential exceeds 300V. ● Do not attempt to make measurement i

̶ 3 ̶SymbolsCAT.IIIPrimary electrical circuits of the equipment connected directly to the distribution panel, and feeders from the distribution pa

̶ 4 ̶ 2. FeaturesKEW4300 is a simplified earth resistance tester (based on 2-pole method) that can be used for various distribution lines and ele

̶ 5 ̶ 3. Specification● Measurement range and accuracy (23ºC±5Cº, relative humidity 75% or less) Voltage/ Earth voltage measurementMeasurement r

̶ 6 ̶● Applicable standards● IEC 61010-1● IEC 60529(IP40)● IEC 61557-1, -5● IEC 61326-1, 2-2● IEC 61010-031 MODEL7248 / CAT.III600V (Alligato

̶ 7 ̶● Operating Error Operating error (B) is an error obtained within the rated operating conditions, and calculated with the intrinsic error (A),