KYORITSU KEW 3121A Instruction Manual Download Page 8 | Manualshive

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③

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①

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⑦

⑥

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⑪

⑩

⑨

4. Instrument Layout

①

Line Terminal

②

Guard Terminal

③

Earth Terminal

④

LED's for High & Low

Range Indication

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Press to Test Button

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Function Switch

⑦

Meter Movement Zero

Adjust

⑧

Battery Compartment

Cover

⑨

Line Probe (Red)

⑩

Earth Cord (Black)

⑪

Guard Cord (Green)

Fig.1

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Summary of Contents for KEW 3121A

Page 1: ...KEW 3121A 3122A 3123A KEW3121A 3122A KEW3123A INSTRUCTION MANUAL HIGH VOLTAGE INSULATION TESTER ...

Page 2: ......

Page 3: ...djustment 6 5 2 Battery Check 6 5 3 Insulation Resistance Measurement 7 5 4 Continuous Measurement 7 5 5 Use of Guard Terminal 8 6 Battery Replacement 9 7 Accessories and options 9 7 1 Metal part for Line Probe and replacement 9 7 2 How to use the adaptor for recorder 10 8 How to fix the Meter to the Hard case 11 9 Cleaning Meter Cover 12 ...

Page 4: ... connect the test leads Do not attempt to make measurement in the presence of flammable gasses Otherwise the use of the instrument may cause sparking which can lead to an explosion Never attempt to make any measurement if any abnormal conditions such as a broken cover or exposed metal parts are present on the Instrument or test leads Set the Function switch to OFF position after use and ensure the...

Page 5: ... sealed with rubber gaskets to protect internal circuit against rain Hard carrying case furnished as standard accessory Houses both instrument and test leads in compact form Made of plastic it is highly water resistant Designed for low power consumption Since the maximum current consumption is 90mA eight pieces of 1 5V SUM 3 or equivalent permit about 6 hours of continuous operation even when the ...

Page 6: ...e length ranges other than listed above at 10 40 10 of re 200 10 20 of re or 1 0 of sc ranges ot listed ab at 10 Output Voltage 2500V 5 100 50000MΩ 5000V 5 200 10 Operating Temperature Humidity 10 Storage Temperature Humidity 20 Insulation Resistance 1000MΩ max 10 Withstand Voltage 5000V AC for one m Dimensions 20 Weight Approx 1k Power Source 8 pcs of R6 Accessories Hard Carrying Case M 9158 Test...

Page 7: ... of reading 0 2 100GΩ 20 of reading or 1 0 of scale length ranges other than listed above at 10 40 10 of reading 0 4 200GΩ 20 of reading or 1 0 of scale length ranges other than listed above at 10 40 V 5 100000MΩ 5000V 5 0 2 100GΩ 10000V 5 0 4 200GΩ 40 at 85 max relative humidity 60 at 90 max relative humidity 1000V between electrical circuit housing case ne minute between electrical circuit housi...

Page 8: ...Line Terminal Guard Terminal Earth Terminal LED s for High Low Range Indication Press to Test Button Function Switch Meter Movement Zero Adjust Battery Compartment Cover Line Probe Red Earth Cord Black Guard Cord Green Fig 1 ...

Page 9: ...st the meter pointer to mark on the scale Use a screwdriver to turn the zero adjust screw located at the center of the front panel 5 2 Battery Check With the function switch set at BATT CHECK position operate the press to test button The batteries are good when the pointer stays in BATT GOOD area or to the right of this area If not replace them Note Refrain from holding down or locking the press t...

Page 10: ...n testing at 5000V and 10000V read the black and red scales respectively for KEW 3123A After a test release the press to test button and wait for several seconds without disconnecting the line probe from the circuit tested This is intended to discharge the charge stored in the circuit tested 5 4 Continuous Measurement Make sure that the circuit under test is earthed and that the test lead attached...

Page 11: ... leakage resistance of the cable insulation to measure only the volume resistance of insulator Make sure to use the Guard cord supplied with this instrument to connect the instrument to Guard terminal Connect the terminals with reference to the following figure of an equivalent circuit Wind a protective wire any conductive bare wires are ok around the point where leakage currents flow Then connect...

Page 12: ...Batttery Replacement 7 1 Metal part for Line Probe and replacement 1 Tip metal parts MODEL8252 Standard Prod straight type with molded parts MODEL8254 Straight Type Prod MODEL8019 Pickel Type Prod accessory To be used to hook the instrument Note Option KEW3121A KEW3122A 2 How to replace it Turn the Line probe counterclockwise to remove the attached tip metal Put the tip metal you want to use to th...

Page 13: ...Earth To recorder Fig 3 7 2 How to use the adaptor for recorder MODEL8324 is the adaptor for recorder for output current measurement Connect it as shown in the below Fig 3 Output is DC10mV when current of 1μA is flowing ...

Page 14: ...ould be located under the fastener attached to the Hard case 2 Put the unit in place and then press down the sides of the unit so that the mushroom shaped stems on the fastener are engaged each other with audible snap sound Dual lock fastener A hard board should be placed in the location as indicated by dotted lines Pressing down the sides of unit as indicated by arrow marks engages the stems on t...

Page 15: ...ricity sometimes builds up on the meter cover due to the characteristic of plastic When the pointer deflects by touching the surface of this tester or zero adjustment can not be made do not try to make measurement When static electricity builds up on the meter cover and affects the meter reading use a cloth dampened with off the shelf anti statics agent or detergent to wipe the meter cover surface...

Page 16: ...DISTRIBUTOR Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations 7 11 92 1919C ...

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