Related Manuals for KYORITSU KEW 3022
Summary of Contents for KYORITSU KEW 3022
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Page 1: Instruction Manual
Instruction manual INSULATION - CONTINUITY TESTER KEW 3021 3022 3023 KYORITSU ELECTRICAL INSTRUMENTS WORKS,LTD. -
Page 2: Table Of Contents
Contents 1．Safety warnings ……………………………………………………１ 2．Features ……………………………………………………………３ 3．Specification ………………………………………………………４ 4．Instrument layout …………………………………………………８ 5．Preparation for measurement ……………………………………９ 5−1 Test lead connection ………………………………………９ 5−2 Checks on Test lead and Fuse ……………………………９ 6．Measurement ……………………………………………………10 6−1 Voltage measurement(Mains disconnection check) ……10 6−2 Insulation resistance measurement ………………………10 6−3 Continuous measurement …………………………………13 6−4 Output voltage characteristics ……………………………13 6−5 Measurement of resistance (Continuity check) …………14... -
Page 3: Safety Warnings
１．Safety warnings ○ This instrument has been designed, manufactured and tested according to IEC 61010-1: Safety requirements for Electronic Measuring apparatus, and delivered in the best condition after passed the inspection. This instruction manual contains warnings and safety rules which must be observed by the user to ensure safe operation of the instrument and retain it in safe condition. - Page 4 Do not install substitute parts or make any modification to the ¡ instrument. Return the instrument to your local KYORITSU distributor for repair or re-calibration in case of suspected faulty operation. Never touch the circuit under test during/immediately after the ¡...
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Page 5: Features
２．Features KEW3021/ 3022/ 3023 are four-range digital insulation resistance testers for testing low-voltage installation below 600V.Resistance measurement with audible Continuity check function is also available. ¡ Designed to following safety standards: IEC61010-1(CAT.III 600V Pollution degree 2) IEC61010-031 (Requirements for hand-held probes) ¡... -
Page 6: Specification
３．Specification ¡ Applicable standards IEC 61557 IEC 61010-1 Measurement CAT.III 600V Pollution degree2 (Location for use: altitude 2000m or less) IEC 61010-031 IEC 60529 IP40 ¡ Measuring range and accuracy <Insulation resistance range> KEW3021 Nominal volta g e 1000V 500V 250V 125V 0∼4/40/200MΩ... - Page 7 KEW3023 Nominal volta g e 100V 1000V 500V 250V 0∼4/40/200MΩ Auto Range 0∼4/40/400/2000MΩ Open circuit Nominal test voltage 0%∼＋20% voltage Short circuit Within 1.5mA current Nominal test 1MΩ 0.5MΩ 0.25MΩ 0.1MΩ current 1mA 0%∼＋20% effective 0.100∼ 0.100∼ 0.100∼ 0.100∼ measurement 1000MΩ...
- Page 8 <Resistance range> 0∼40.00/ 400.0Ω Auto-range 5V±20% Open-circuit voltage(DC) DC200mA or more Short-circuit current Measuring range to keep 0.2∼400Ω/ ±(2%rdg + 8dgt) operating error/ tolerance Outside of the measuring range 0∼0.19/Ω0.1Ω to keep operating error/ tolerance <Voltage range> Measured voltage 20∼600V Accuracy ±(3%rdg+6dgt) Accuracy at 0...
- Page 9 MODEL 3021 / 3023 3022 Continuity range AC600V AC600V Insulation All ranges : All ranges:AC1200V resistance AC600V AC720V AC voltage AC720V Auto-ranging: Range shifts to upper range : when a reading go over 4200 Range shifts to lower range : when a reading go to less than 320 Dimension : approx.
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Page 10: Instrument Layout
４．Instrument layout Fig. 2 Instrument layout (KEW3022) ① Test button ② Range selector switch ③ ENTER key ④ MEM key ⑤ DOWN key ⑥ UP key ⑦ Comp key ⑧ 0ΩADJ. key Backlight key ⑨ Safety key ⑩ ⑪ LIVE LED ⑫... -
Page 11: Preparation For Measurement
(3) Test lead or instrument itself may have troubles when "OL" is displayed on the LCD after replacing the fuse. In this case, send the instrument to your local KYORITSU distributor for repair. DANGER ¡ When the Test button or the Remote control switch is pressed... -
Page 12: Measurement
６．Measurement 6-1 Voltage measurement (Mains disconnection check) (1) Connect the Earth probe to the earth of the circuit under test and Line probe to the other side. If the circuit is not earthed, connect Earth probe to any appropriate conductor. (2) Take the reading on the LCD without pressing the Test button or Remote control switch. - Page 13 Note: ¡ Some circuits have an unstable insulation resistance, which causes the reading to vary during measurement. ¡ The instrument may generate a high pitch tone during measurement. This is not a failure. ¡ If the circuit under test has a large capacitive load, it may take some time before the final reading can be obtained.
- Page 14 (2) Connect the Earth probe to the earth terminal of the circuit under test. If the circuit is not earthed, connect the Earth probe to any appropriate conductor. (3) Connect the Line probe to the circuit under test and press the Test button or Remote control switch.
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Page 15: 6−3 Continuous Measurement
(6) Set the Range selector switch to the OFF position, and disconnect the probes from the instrument. DANGER ¡Never touch the circuit under test immediately after testing. Capacitance stored in the circuit may cause electric shock. Leave the test leads connected to the circuit until the LIVE LED and LIVE circuit warning stop flickering. -
Page 16: 6−5 Measurement Of Resistance (Continuity Check)
Fig. 9 6-5 Measurement of resistance (Continuity check) DANGER ¡ Do not apply voltage to the resistance range. Always test the circuit or equipment to ensure it is surely de-energized before measurement. Zero Ω ADJ. function This is a function to null the resistance of the test lead or fuse in order to display the resistance of the equipment under test only. -
Page 17: 6−6 Backlight Function
Releasing: (1) Set the Range selector switch to theΩ(Continuity) position. (2) Open the test leads: LINE (red) and EARTH (black). (3) Press the Zero Ω ADJ. to release this function when "OL" is displayed on the LCD while the Test button is locked or the Remote control switch is pressed down . -
Page 18: Functions Keys
7．Functions keys 7-1 Comparator function Set a reference resistance value at the insulation resistance range. The measured value is compared to the pre-set reference value, and the mark of is displayed on the LCD and buzzer Settable reference value: 0.1/0.2/0.25/0.4/0.5/1/2/3/5/10/20/30/50/100/Any : Unit [MΩ] "... -
Page 19: 7−2 Memory (Save) Function
7-2 Memory (save) function Measured insulation resistance can be saved to the internal memory up to 99 data. Saving method: (1) Measure the insulation resistance, and press the MEM key while the message is displayed on the LCD.Then a memory number displayed at the lower left flickers.Select any memory number with the UP or DOWN key, and press the key. -
Page 20: Fuse & Battery Replacement
8．Fuse & Battery replacement DANGER ¡ Never open the Battery cover during a measurement.Dispose the used batteries according to the rules, which is defined by each community. WARNING ¡ To avoid possible electric shock, remove test leads before opening the Battery cover. After replacing batteries, be sure to tighten up the screws for Battery cover. -
Page 21: Notes On Housing Case And Accessories
9．Notes on Housing case and accessories 9-1 Case lid Case lid can be fit under the Housing case while making measurement. (1) Unhook and open the Case lid. (2) Turn it 180 degrees. Put the Case lid under the Housing case. (3) Hook it on to the Housing case. -
Page 22: 9−3 Test Prods And Replacement
9-3 Test prods and replacement 1. Types of Test prods MODEL8072: Standard Test prod Used for ordinary measurement. (Attached to the Line probe at the time of purchase.) MODEL8017: Extension probe Used in difficult-to-reach situations. MODEL8016: Pickle prod (Optional) Used to hook the probe on a conductor. 2. -
Page 23: Cleaning Of The Instrument
10．Cleaning of the instrument Cleaning Meter cover When cleaning the instrument, wipe it with a silicon cloth or soft ¡ cloth to remove dust or dirt. When it is hard to remove the dirt, wipe it with a cloth wet with ¡... - Page 24 DISTRIBUTOR KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD. No.5-20, Nakane 2−chome,Meguro-ku, Tokyo, 152-0031 Japan Phone:81−3−3723−0131 Fax:81−3−3723−0152 URL:http://www.kew-ltd.co.jp E-mail:info@kew-ltd.co.jp Factories:Uwajima & Ehime 04-12 92-1635A...