KYORITSU kew 4300 Instruction Manual Download Page 2

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Contents

1. Safety warnings

･････････････････････････････････････････

2. Features

･･･････････････････････････････････････････････

3. Specification

････････････････････････････････････････････

4. Instrument layout

････････････････････････････････････････

5. Accessories

････････････････････････････････････････････

6. Getting started

･････････････････････････････････････････

6-1 Battery voltage check

･･･････････････････････････････

6-2 Attaching Metal tip/ adapter

･･････････････････････････

7. Voltage measurement

･･･････････････････････････････････

7-1 Measurement procedure

･････････････････････････････

7-2 Live circuit warning

･････････････････････････････････

8. Earth resistance measurement

･･･････････････････････････ 15

8-1 Principle of measurement

････････････････････････････

8-2 Measurement procedure

･････････････････････････････

9. LCD backlight and LED light

･････････････････････････････

10. Replacing batteries

････････････････････････････････････

Summary of Contents for kew 4300

Page 1: ...Instruction Manual Simplified Earth Tester KEW 4300...

Page 2: ...tarted 11 6 1 Battery voltage check 11 6 2 Attaching Metal tip adapter 11 7 Voltage measurement 13 7 1 Measurement procedure 13 7 2 Live circuit warning 14 8 Earth resistance measurement 15 8 1 Princi...

Page 3: ...eference whenever necessary The instrument is to be used only in its intended applications Understand and follow all the safety instructions contained in the manual It is essential that the above inst...

Page 4: ...test leads Do not press the Test button when connecting the test leads to the instrument Do not install substitute parts or make any modification to the instrument Return the instrument to your local...

Page 5: ...lectrical environments categorized as CAT I to CAT IV and called measurement categories Higher numbered categories correspond to electrical environments with greater momentary energy so a measuring in...

Page 6: ...ltage is detected Small test current max 2mA not triggering ELB Live circuit warning when 30V or higher voltage is detected KEW4300 detects voltage even when measuring resistances LED light for illumi...

Page 7: ...er than sinewave of CF 2 5 the specified accuracy 1 f s should be applied AC DC auto detection at 5V or higher DC sign appears at 5V or higher H S C P terminal positive side E terminal negative side T...

Page 8: ...midity range 20 C to 60 C 75 or less no condensation Withstand voltage AC3 540V 50 60Hz for 5 sec between the electrical circuit and the enclosure Insulation resistance 50M or more DC1000V between the...

Page 9: ...ing the supply voltage until the Battery symbol appears E3 Variation due to changing the temperature 10 C to 50 C E4 Variation due to series interference voltage 16 2 3Hz 50Hz 60Hz DC 10V 400Hz 3V E5...

Page 10: ...ightness for turning on off the light 4 Test button To conduct resistance measurement Measurement is conducted when the button is held down 5 Warning LED To give warnings for live circuit blinking red...

Page 11: ...9 Voltage 314 9V OL for negative DC voltages Indicate the end of a measurement with frozen measured result Blink to give a warning for live circuit Symbol displayed at earth measurements A unit of ear...

Page 12: ...tips for H S C P terminal 1 MODEL8072 Standard metal tip installed at a shipment 2 MODEL8253 3 MODEL8017 Metal tip with plastic molded Long type and helpful to access the distant measurement spot Othe...

Page 13: ...are used 6 2 Attaching metal tip adapter The metal tip for the H S C P terminal and the adapters for MODEL7248 to be connected to the E terminal are replaceable depending on applications DANGER Alway...

Page 14: ...he cord with Banana plug both ends Adapters for MODEL7248 1 Alligator clip 2 Flat test bar How to connect Firmly insert and connect the adapter to the end of the cord with Banana plug both ends DANGER...

Page 15: ...instrument Plug the L shaped Banana plug of MODEL7248 into the E terminal as illustrated below 2 Connect the adapter for test leads to the earth side of the circuit under test and the metal tip H S C...

Page 16: ...ue The LCD does not show DC AC nor sign when the measured values are less than 5V The LCD shows 314 9V when the measured value exceeds the display range over range and it shows OL for negative DC volt...

Page 17: ...rth for commercial power supply and a lightning electrode on buildings and performs measurements based on the 2 pole measurement method The AC constant current I is applied between the measurement obj...

Page 18: ...ument for testing the earth side of the commercial power supply It is dangerous because the LCD may not show the measured voltage even the circuit under test is in live if the earth of the electrode u...

Page 19: ...Measurement Press the Test button The LCD shows the measured result The instrument carries out an earth resistance measurement while the Test button is held down The buzzer sounds when the measured v...

Page 20: ...on the lights The lights keep on for about 15 sec once they turn on Turning off the Auto light mode The following procedure is for setting the lights always off 1 Ensure that the instrument is powered...

Page 21: ...ery compartment cover when starting a measurement Otherwise it may cause an electrical shock hazard CAUTION Do not mix new and old batteries or mix different types of batteries Install batteries in co...

Page 22: ...20 MEMO...

Page 23: ...21 MEMO...

Page 24: ...DISTRIBUTOR Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations 11 04 92 2081...

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KYORITSU kew 4300, Instruction Manual

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