Related Manuals for Kyoritsu Electrical Instruments Works KEW 2009R
Summary of Contents for Kyoritsu Electrical Instruments Works KEW 2009R
- Page 1 INSTRUCTION MANUAL 取扱説明書 DIGITAL CLAMP METER デジタルAC／DCクランプメータ KEW SNAP SERIES KEW 2009R...
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Page 2: Table Of Contents
Contents １．Safety Warnings ････････････････････････････････････････ １ ２．Features ･･･････････････････････････････････････････････ ５ ３．Specifications ･･････････････････････････････････････････ ７ ４．Instrument Layout ･ ･･････････････････････････････････････ 11 ５．Preparation for Measurement ････････････････････････････ 14 ５−１ Checking Battery Voltage ･･････････････････････････ 14 ５−２ Checking Switch Setting and Operation ･････････････ 14 ６．Measurement ･ ･･････････････････････････････････････････ 15 ６−１ DC Current Measurement ･･････････････････････････ 15 ６−２ AC Current Measurement ･･････････････････････････ 16 ６−３ DC Voltage Measurement ･･････････････････････････ 17 ６−４ AC Voltage Measurement ･･････････････････････････ 18 ６−５ Resistance Measurement ･･････････････････････････ 19 ６−６ Continuity Check ･･････････････････････････････････ 20 ６−７ Frequency Measurement ･･･････････････････････････ 20 ６−８ Peak Measurement ････････････････････････････････ 21 ６−９ Average Measurement ･････････････････････････････ 23 ７．Other Functions ････････････････････････････････････････ 24 ７−１ Auto-power-off Function ･ ･･･････････････････････････ 24 ７−２ Data Hold Function ･ ･･･････････････････････････････ 24 ７−３ LoHz Function ････････････････････････････････････... - Page 3 1. Safety Warnings ○ T his instrument has been designed and tested according to IEC Publication 61010: Safety Requirements for Electronic Measuring Apparatus. 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. Therefore, read through ...
- Page 4 Following symbols are used on the instrument and in the instruction manual. Attention should be paid to each symbol to ensure your safety. Refer to the instructions in the manual. This symbol is marked where the user must refer to the instruction manual so as not to cause personal injury or instrument damage. Indicates an instrument with double or reinforced insulation. Indicates that this instrument can clamp on bare conductors when ...
- Page 5 WARNING ● N ever attempt to make any measurement, if the instrument has any structural abnormality such as cracked case and exposed metal part. ● D o not turn the function selector switch with plugged in test leads connected to the circuit under test. ● D o not install substitute parts or make any modification to the instrument. ...
- Page 6 ○Measurement categories (Over-voltage categories) T o ensure safe operation of measuring instruments, IEC 61010 establishes safety standards for various electrical environments, categorized as O to CAT IV, and called measurement categories. Higher-numbered categories correspond to electrical environments with greater momentary energy, so a measuring instrument designed ...
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Page 7: ２．Features
２．Features ● T ear-drop-shaped jaws for ease of use in crowded cable areas and other tight places. ● A ccurate true-RMS reading of AC current or voltage with distorted waveform. ●Average function for easy reading of input with large variation. ●Auto-null function for easy zero adjustment. ●Provides frequency reading in AC current or voltage measurement. ●Auto-ranging feature on current, voltage and resistance ranges. ●Wide measuring range from 0 up to 2000A. ●Terminal cover to avoid the use of an incorrect terminal. ●PEAK function for measuring a peak of input ●Provides recorder output for long hour monitoring ● D ata Hold function for easy reading in dimly light or hard-to-read locations ●Auto-power-off feature to extend battery life. ●Permits easy continuity check with a beeper ●Provides a dynamic range of 4200 counts full scale ●Wide frequency range from 20Hz to 1kHz ●Uses shrouded transformer jaws to further improve safety ● D esigned to CAT Ⅳ 600VAC,DC / CAT Ⅲ750VAC,1000VDC p o l l u t i o n ... - Page 8 *Effective Value (RMS) Most alternating currents and voltages are expressed in effective values, which are also referred to as RMS (Root-Mean-Square) values. The effective value is the square root of the average of square of alternating current or voltage values. Many clamp meters using a conventional rectifying circuit have "RMS" scales for AC measurement. The scales are, however, actually calibrated ...
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Page 9: ３．Specifications
３．Specifications ● M easuring Ranges and Accuracy (at 23 ℃ ± ５ ℃ , relative humidity75% or less) AC Current (RMS value detection, Auto-range) Accuracy※ Range Display range Allowable input (Frequency) 400A 0.0〜420.0A ±1.3%rdg±3dgt (45〜66Hz) 1.0〜1700Arms ±2.0%rdg±5dgt (20Hz〜1kHz) 2000A 150〜2100A 1700〜2000Arms ±2.3%rdg±3dgt (3000Apeak or less) (45〜66Hz) ※ F or non-sinusoidal waveforms, add ±(1.5% of full scale), for Crest factor<3. ※4 counts or less is corrected to 0 DC Current ... - Page 10 DC Voltage (Auto-range) Range Display range Allowable input Accuracy 0.00〜±42.00V 400V ±15.0〜±420.0V 0.00〜±1000V ±1.0%rdg±2dgt 1000V ±150〜±1050V ※Input Impedance：approx. 2MΩ Resistance / Continuity (Auto-range) Range Display range Allowable input Accuracy 400Ω 0.0 〜 420.0Ω 0.0Ω〜 4000Ω ±1.5%rdg±2dgt 4000Ω 150 〜 4200Ω ※ O pen-loop Voltage：approx.3V, Measuring Current : 0.6mA or less (400Ωrange) 0.06mA or less(4000Ωrange) ※The buzzer turns on for resistances lower than 20±1Ω. Frequency Hz ( AC Current) (Auto-range) Range Display range Allowable input Accuracy 1000Hz 8.0 〜...
- Page 11 Output Output voltage： 0.1mV ／ 1count Range Allowable input Output Voltage (mVDC) Accuracy DC400A 0.0〜±400.0A 0〜±400mV Within ±1mV DC2000A 0〜±2000A 0〜±200mV （To the indicated AC400A 0.0〜400.0A 0〜400mV value） AC2000A 0〜2000A 0〜200mV ※ W hen the display is "OL", the output voltage is 420mV（"-OL"： -420mV） ※Output impedance: about 10kΩ Note:◇ T he symbol of "―" in the above table means that the instrument ...
- Page 12 ●Operating System ΔΣ modulation ●Display L iquid crystal display with a maximum count of 4200 plus annunciators ●Overrange Indication "OL" is shown on the display ●Response Time Approx. 2 seconds. ●Sample Rate About 3 times per second. ●Safety standard I EC 61010-1, 61010-2-032, 61010- 2-033, 61010-031 CAT IV 600V / CAT III 1000V Pollution degree 2 ●EMC EN 61326-1, EN61326-2-2 ●RoHS E N 50581 ●Location for use Indoor / outdoor use, Altitude up to 2000m ●Temperature and Humidity 23 +/-5℃ , relative humidity up to 75% for Guranteed Accuracy without condensation ●Operating Temperature ...
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Page 13: ４．Instrument Layout
４．Instrument Layout ① ⑮ ⑭ ② ⑯ ③ ④ ⑦ ⑤ ⑥ ⑫ ⑨ ⑧ ⑩ ⑪ ⑬ ①Transformer Jaws Pick up current flowing through the conductor. ②Jaw Trigger O perates the transformer jaws. Press to open the Transformer Jaws. ③Function Selector Switch Selects function. Also used to power the instrument on. ④Data Hold Button F reezes the display reading. "H" is shown on the display when Data Hold is enabled. - Page 14 ⑤Mode Selector Button S elects measuring mode. The instrument defaults to the normal mode (NOR). Then, press this switch to cycle through measuring modes. In any mode, pressing this switch for more than one second returns the instrument to the normal mode. Ω A ／ V A ／ V Resistance ACA/ACV DCA/DCV Display Display Display Continuity Normal Ω...
- Page 15 ⑧Terminal Cover S lides over V/Ω and COM Terminals to prevent access to them when OUTPUT terminal is in use. ⑨OUTPUT Terminal(For AC or DC current range only) P rovides DC voltage output in proportion to the AC or DC current reading. The output is connected to a recording device such as a chart recorder for long hour monitoring. No output is available on voltage and resistance ranges. ⑩COM Terminal Accepts the black test lead for voltage or resistance measurement. ⑪V/Ω Terminal Accepts the red test lead for voltage or resistance measurement. ⑫Safety Hand Strap Prevents the instrument from slipping off the hand during use. ⑬ Test Leads (Model 7107A) C onnected to COM and V/Ω terminals for voltage or resistance measurement.
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Page 16: ５．Preparation For Measurement
５．Preparation for Measurement ５－１ Checking Battery Voltage ① S et the function selector switch to any position other than "OFF". ② W hen the display is clear without "BATT" showing, proceed to measurement. ③ W hen the display blanks or "BATT" is indicated, replace the battery according to section 8. Battery Replacement. -
Page 17: ６．Measurement
６．Measurement ６－１ DC Current Measurement DANGER ● D o not make measurement on a circuit above 1000VDC. This may cause shock hazard or damage to the instrument or equipment under test. ● D o not make measurement with the battery compartment cover removed from the instrument. -
Page 18: ６－２ Ac Current Measurement
NOTE ● D uring current measurement, keep the transformer jaws fully closed. Otherwise, accurate measurement cannot be made. The maximum measurable conductor size is approx. 55mm in diameter. ● W hen the current flows from the upside (the display side) to the underside of the instrument, the reading is indicated positive. ● T he Zero Adjust/Reset button may not completely zero adjust the output voltage from the OUTPUT terminal. In this case, make zero adjustment on the recording device. ● ... -
Page 19: ６－３ Dc Voltage Measurement
① S et the function selector switch to the " 〜 A" position. AC" should be shown on the upper left corner of the display. ② P ress the trigger to open the transformer jaws and clamp them onto a single conductor and take the reading on the display. The most accurate reading will be obtained by keeping the conductor at the center of the transformer jaws. NOTE ● D uring current measurement, keep the transformer jaws fully closed. Otherwise, accurate measurements cannot be taken. -
Page 20: ６−４ Ac Voltage Measurement
① S et the function selector switch to the " Ｖ" position. DC" should be shown on the upper left corner of the display. ② S lide the terminal cover to the left to disclose the V/Ω and COM terminals. Plug the red test lead into the V/Ω terminal and the black test lead into COM terminal. ③ C onnect the tip of the red and black test leads to the positive (+) and negative (-) sides of the circuit under test respectively. Take the reading on the display. If the connection is reversed, the display indicates the "-" sign. -
Page 21: ６－５ Resistance Measurement
③ C onnect the tip of the red and black test leads to the circuit under test and take the reading on the display. NOTE ● W hen the voltage under test measures 3% of the range or less, or the frequency of the voltage is low, "LoHz" is indicated on the display. ６－５ Resistance Measurement DANGER ●Never use the instrument on an energized circuit. ● D o not make measurement with the battery compartment cover removed. -
Page 22: ６−６ Continuity Check
６－６ Continuity Check (400Ω range fixed) ※ T he continuity check mode is enabled by pressing the mode selector switch on resistance range. " " is indicated on the display to show the instrument in the continuity check mode. The buzzer beeps, if the resistance under test is 20.0Ω or less. DANGER ●Never use the instrument on an energized circuit. ● D o not make measurement with the battery compartment cover removed. -
Page 23: ６－８ Peak Measurement
DANGER ● N ever use the instrument on a high voltage circuit above 750VAC. T his may cause electrical shock hazard and damage to the instrument or the circuit under test. ● D o not make measurement with the battery compartment cover removed. ● D o not make current measurement with the test leads plugged into the instrument. - Page 24 DANGER ●Never use the instrument on a circuit above 750VAC/1000VDC. T his may cause electrical shock hazard and damage to the instrument or the circuit under test. ● D o not make measurement with the battery compartment cover removed. ● D o not make measurement with the test leads plugged into the instrument.
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Page 25: ６－９ Average Measurement
NOTE ● I n the PEAK mode, the auto-ranging feature is disabled and measuring ranges are fixed as follows. DC/ACA: 0-400.0A DC/ACV: 0-400.0A ● When a measured value is 9 counts or less, it is corrected to 0 ● T he Auto-power-off function is disabled in the PEAK mode as well. ６－９ Average Measurement ●In the Average mode, "AVG" is indicated on the display. ● T he display reads a running average of six readings over an interval of about 2 seconds. -
Page 26: ７．Other Functions
７．Other Functions ７－１ Auto-power-off Function CAUTION ● T he instrument consumes small amount of battery power in the Auto-power-off mode. Make sure to set the function selector switch to the OFF position after use. T his is a function to prevent the instrument from being left powered on in order to conserve battery life. This function causes the instrument ... -
Page 27: ７－３ Lohz Function
NOTE ● I f the instrument in the Data Hold mode goes into "Auto-power- off," it will return to the normal mode. ７－３ LoHz Function I n ACV or ACA range, if frequency of the voltage or current under test is 40Hz or lower, the display indicates "LoHz". "LoHz" is also indicated where input is 3% of range or less. ７－４ OUTPUT Terminal (For current ranges only) DANGER ●Never use the instrument on a circuit above 750VAC/1000VDC. T his may cause electrical shock hazard and damage to the instrument or the circuit under test. ● D o not make measurement with the battery compartment cover removed. - Page 28 ① S lide the terminal cover to the right to disclose the OUTPUT terminal and insert the output lead into the terminal. Make connection to the recording device. ② W hen the lead is inserted into the output terminal, auto-range function is cleared. Set the range depending on the state of Data Hold Switch. Data Hold Switch OFF 400A range ...
- Page 29 ● C onsult the output voltage specifications shown in section 3 and adjust the sensitivity of the recording device. ● F or long hours of use of the OUTPUT terminal, use an Alkaline battery, which will extend continuous recording time up to about 35 hours. ̶ 27 ̶...
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Page 30: ８．Battery Replacement
８．Battery Replacement WARNING ● T o avoid electric shock hazard, make sure to set the function selector switch to "OFF" and remove the test leads from the instrument before trying to replace battery. CAUTION ●Do not mix new and old battery. ● M ake sure to install battery in correct polarity as indicated in the battery compartment. If the battery voltage becomes too low for the instrument to operate normally, " " is shown on the display. Then, replace the battery. Note that when the battery is completely exhausted, the display blanks without " ... -
Page 31: ９．Optional Accessories
９．Optional Accessories ● MODEL 8008 (For AC current measurement only) Multi-Tran Model 8008 is designed to increase the measuring capability of a clamp meter. With the use of the Multi-tran, you can not only extend current range over 3000A, but also clamp on a large bus-bar or conductor. ①Set the function selector switch to the " 〜 A" position . ② A s shown in the figure below, clamp KEW 2009R onto the pickup coil of MODEL 8008. - Page 32 Memo ̶ 30 ̶...
- Page 33 DISTRIBUTOR Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations. 1-19 92-2022E...
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