Failure to do so may impair the protection provided by the instrument and probes, and may result in electrical shock or other dangers that may lead to serious injury or the loss of life. KYORITSU is in no way liable for any damage resulting from the user’s mishandling of the product.
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Regarding Safe Use of This Product For safe use of this product, the following safety symbols are used on the product and manual: This indicates that the operator must refer to an explanation in the W ARNIN G instruction manual in order to avoid the risk of serious injury or the loss of life.
Test leads / Test leads with crocodile clip (optional accessory) • Use the probes supplied by KYORITSU with this instrument. • Do not use test leads/test leads with crocodile clip that have deteriorated or are defective. Check test leads/test leads with crocodile clip continuity. • Disconnect test leads/test leads with crocodile clip from the circuit under test before opening the casing to replace the batteries or for any other reason.
1. Overview l Fast and more accurate measurement The KEW1061 and KEW1062 digital multimeters use Σ modulation for A/D conversion, which enable fast and more accurate measurement. l Display 5-digit (LCD) Maximum Reading: 50000 Bar graph indicator l Supports a variety of measurement function Measurement function DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature, Capacitor, Duty cycle ratio, Decibel (dBV, dBm), Continuity Check, Diode Test,...
2. Measurement Category W ARNIN G n Measurement Category (CAT.) The restrictions on the maximum voltage level for which the KEW1061, KEW1062 can be used, depend on the measurement categories specified by the safety standards. Do not apply any input level higher than maximum allowable input. AC/DC 1000V CAT. III AC/DC 600V CAT.
3. Specifications 3.1 General Specifications Measurement function: DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature, Capacitor, Duty cycle ratio, Decibel (dBV, dBm), Continuity Check, Diode Test, LowPower-Ω* Other functions: Data Hold (D•H), Auto Hold (A•H), Peak Hold* (P•H), Range Hold (R•H), Maximum value (MAX), Minimum value (MIN), Average value (AVG), Zero Adjustment (Capacitor, Resistance), Relative values, Save to Memory, LCD backlight. LowPower-Ω: Measures resistance under lowmeasurement current. *: For model KEW1062 only Measuring method: Σ modulation...
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Battery life: Approximately 120 hours (Operating hours of alkaline batteries when in DC voltage-mode.) Note: The battery life varies depending on the operating conditions. Insulation resistance : 1000V DC, 100MΩ or more Withstand voltage: 6.88kVrms AC for five seconds (across input terminals and casing) External dimensions: Approximately 192(L) × 90(W) × 49(D) mm Weight: Approximately 560g (including batteries) Complied standards: Safety standards IEC61010-1, IEC61010-031 CAT.III (Max.
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Standard accessories: Batteries : 4 Test leads: 1set (M-7220A) Fuse (included): 440mA/1000V (M-8926), 10A/1000V (M-8927) Instruction manual: 1 Optional accessories: Carrying case M-9150 (for the main unit with test leads and communication cable) Test leads (1set) M-7220A Test leads with crocodile clip (1set) M-7234 Fuse 440mA/1000V M-8926...
3.2 Accuracy Test conditions: Temperature and humidity: 23±5ºC at 80%RH or less Accuracy: ±(% of reading + digits) Note: Each response time is a value to rated accuracy within selected range. DC Voltage Measurement Accuracy Maximum Range Resolution Input Resistance Input Voltage KEW1061, KEW1062 50mV 0.001mV 0.05+10 500mV 0.01mV Approx. 100MΩ 1000V DC 0.02+2 2400mV 0.1mV...
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AC Voltage Measurement [RMS] KEW1062 AC Coupling, Rms-value detection, Crest factor*: <3 Accuracy Maximum Reso- Input Range Input 10 to 20Hz to 1k to 10k to 20k to 50k to lution Impedance Voltage 20Hz 1kHz 10kHz 20kHz 50kHz 100kHz 2+80 0.4+40 5+40 5.5+40 15+40 50mV 0.001mV 11MΩ...
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DCV+ACV KEW1061 Maximum Reading 50000, Crest factor*: <3 Accuracy Input Maximum Range Resolution Impe- Input DC, 10 to DC, 20Hz DC, 1k to DC, 10k dance Voltage 20Hz to 1kHz 10kHz to 20kHz 11MΩ 0.0001V 1000V <50pF 1.5+10 1+10 2+10 rms AC 0.001V 10MΩ 500V 0.01V 1000V DC <50pF...
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AC Current Measurement [RMS] KEW1061 Rms-value detection, Crest factor: <3 Accuracy Maximum Input Range Resolution Voltage Drop Current 10 to 20Hz 20Hz to 1kHz 500μA 0.01μA <0.11 mV/μA 440mA Protected 5000μA 0.1μA by a 440mA/ 50mA 0.001mA 1000V fuse. 1.5+20 1+20 <4mV/mA 500mA*3 0.01mA 0.0001A 10A Protected by a <0.1V/A 10A/1000V fuse.
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AC Current Measurement [MEAN] KEW1062 MEAN value detection, RMS value calibration (sine wave) Accuracy Voltage Maximum Input Range Resolution 500Hz to Drop Current 10 to 20Hz 20 to 500Hz 1kHz 500μA 0.01μA <0.11 mV/μA 440mA Protected 5000μA 0.1μA 2+20 1.5 +20 2+30 by a 440mA/ 50mA...
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DCA+ACA KEW1062 Maximum Reading 50000, Crest factor: <3 Accuracy Maximum Input Range Resolution Voltage Drop DC, 10 to DC, 20Hz DC, 1k to Current 20Hz to 1kHz 5kHz 500μA 0.01μA <0.11 mV/μA 440mA Protected 5000μA 0.1μA 1.5+10 1+10 1.5+10 by a 440mA/ 50mA 0.001mA 1000V fuse. <4 mV/mA 500mA*3 0.01mA...
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Continuity Check Maximum Reading 5000 Measuring Open-loop Input Protective Range Resolution Range of Operation Current Voltage Voltage The buzzer turns on Approx. 500Ω 0.1Ω for resistances lower <5V 1000V rms 0.5mA than 100±50Ω. Diode Test Measuring Current Open-loop Input Protective Range Resolution Accuracy (Vf=0.6V)
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Frequency Measurement Hz AC Coupling, Maximum Reading 9999 Range (AUTO) Resolution Accuracy 2.000 to 9.999Hz 0.001Hz 9.00 to 99.99Hz 0.01Hz 0.02+1 90.0 to 999.9Hz 0.1Hz 0.900 to 9.999kHz 0.001kHz 9.00 to 99.99kHz 0.01kHz Accuracy *1: At 10 to 100% of input voltage or current range *2: At 40 to 100% of input voltage or current range Duty cycle ratio % Range Resolution Accuracy 10 to 90%...
4. Operation 4.1 Precautions Before Measurement n Examining Items Contained in the Package After opening the package, be sure to examine the product as instructed below before use. Should the delivered product be the wrong model, lack any item, or show any flaw in its appearance, contact the vendor from which you purchased the product.
4.2 Components n Panel Description n Test leads Display (LCD) SHIFT key RANGE key HOLD (SAVE) key LIGHT (READ) key SELECT (PRINT) key L /% key MIN/MAX (LOG) key MEMORY key Function switch Input terminal block Black With: 1000V10A CAT. /600V 10A CAT. Without: 1000V10A CAT. /600V 10A CAT.
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1) Function switch Turns off the power or select the measurement mode (function). Turns off the power. Ω Resistance measurement AC voltage (V) measurement Capacitor measurement mV AC voltage (mV) measurement TEMP Temperature measurement DC voltage (V) measurement μA DC voltage (mV) measurement DC/AC current measurement Continuity check, Diode Test 2) SELECT key...
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3) RANGE key Allows the operator to select the measuring range. Fixed ranges : The display shows the “ R•H ” symbol. The range increases every time this key is pressed. AUTO range : The display shows the “ AUTO ” symbol. To return to the auto-ranging mode, hold down RANGE key for more than one second. 4) HOLD key Selects between the DATA HOLD, AUTO HOLD and PEAK HOLD functions. To cancel functions, press this key once again.
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8) MEMORY key Data can be stored in internal memory using this key. Used when outputting to printer with the optional adapter and cable. 9) SHIFT key While this key is pressed, “Shift” appears on the display. Pressing the following keys with the SHIFT key held down enables the following settings. LIGHT key Set-up function RANGE key...
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Symbol and Unit Description Appears when in DC-mode measurement Appears when in AC-mode measurement Appears when in DC+AC-mode measurement – Appears when the polarity is negative Appears when in diode test Appears when in continuity check Relative calculation indicator R•H Fixed ranges indicator AUTO AUTO range indicator DATA HOLD indicator AUTO HOLD indicator PEAK HOLD indicator Lit when in MIN/MAX/AVG-mode...
4.3 Measuring Instructions W ARNIN G To avoid damage to instrument or equipment • Before starting measurement, make sure that the position of function switch and the input terminals for connecting the test leads are appropriate for the desired mode of measurement.
4.3.3 DC+AC Voltage Measurement ( 1) Turn the function switch to the “ V ” position. 2) Press the SELECT key to select DC+AC voltage measurement. (The display shows the “ ” symbol.) 3) Plug the test leads into the input terminals. Test leads Black 4) Connect the test leads to the circuit under test and then read the value when it stabilizes.
4.3.6 Low Power-Ω (LP-Ω) This function is for measuring the resistance of parts on a printed board under low measurement current. In Low Power-Ω measurement, up to 5,000 counts are displayed and the measurement range is from 5 kΩ to 5 MΩ. 1) Turn the function switch to the “Ω” position. Press the SELECT key to set LP-Ωmode. “LP-Ω” appears on the display. 2) Plug the test leads into the input terminals. 3) Connect the test leads to the resistance and then read the value when it Test leads Black stabilizes.
4.3.8 Diode Test ( CAUTION To avoid damage to instrument Turn off the power to the circuit under test before starting measurement in order to prevent any excessive voltage from being applied to the instrument. 1) Turn the function switch to the “ • ”...
4.3.9 Temperature Measurement (TEMP) CAUTION To avoid damage to instrument Turn off the power to the circuit under test before starting measurement in order to prevent any excessive voltage from being applied to the instrument. Note Optional Temperature probe is required for temperature measurement. Temperature Probe: Thermocouple Type K Model: 8405, 8406, 8407, 8408 Check the measurable range of respective probes.
4.3.10 Current Measurement (µA/mA/A) W ARNIN G To avoid damage to instrument or equipment • Before starting measurement, make sure that the position of function switch and the input terminals for connecting the test leads are appropriate for the desired mode of measurement. • The maximum input current (limited by fuses) of the “µA” and “mA” ranges is 440 mA.
4.3.11 DC+AC Current Measurement ( W ARNIN G To avoid damage to instrument or equipment • Before starting measurement, make sure that the position of function switch and the input terminals for connecting the test leads are appropriate for the desired mode of measurement.
4.3.12 DC, AC Current Dual Display ( • 1) Turn the function switch to the “µA,” “mA” or “A” position. (If the magnitude of the current being measured is not known, select the “A” position. Make sure the current being measured is no more than 440 mA before the “µA”...
4.3.14 Frequency Measurement (Hz), Duty cycle ratio (Hz) CAUTION To avoid damage to instrument Turn off the power to the circuit under test before starting measurement in order to prevent any excessive voltage from being applied to the instrument. 1) Turn the function switch to the voltage( mV) or <Voltage>...
4.3.15 Function to change RMS detection to/from MEAN detection mode (KEW1062 only) The instrument has a function to change RMS detection to/from MEAN detection modes. <Change to MEAN detection mode> 1) Select the appropriate AC measurement mode (ACV, ACmV, ACµA, ACmA, ACA) by using the function switch and the SELECT key. 2) Press the SHIFT key to display “Shift”...
4.3.17 AUTO HOLD Function The instrument can automatically retain the measured value when the test leads are handled as described below. 1) Press the HOLD key to select Auto hold function. (The display shows the“ A•H ” symbol.) 2) Connect the test leads to the circuit under test. 3) When the reading stabilized, the buzzer sounds.
4.3.18 PEAK HOLD Function This instrument can always detect, update and display the peak value (instantaneous) in DCV and DCA measurement. The peak value of the wave can be seen. 1) Turn the function switch to DCV or DCA position. 2) Connect the test leads to the circuit under test.
<Percentage (%) calculation> Calculates and display the percentage value according to the following equation: % value =(measured value – reference value)/reference value 1) Take a measurement to set the reference value. 2) Press the REL /% key. (The display shows the“ ” symbol and the sub-display shows the reference value.) 3) Take another measurement.
4.3.21 MIN/MAX/AVG Function The minimum value (MIN), maximum value (MAX) and average value (AVG) during measurement are shown. (The range is fixed.) The average value is shown by dividing the integrated record data by the number of recording times. Pressing this key starts recording and at the same time the display shows “MIN”, “MAX” and “AVG” to release AUTO POWER OFF.
4.4 Memory Function <To save a Data in internal memory> The instrument can save a data using with the following two types of modes. SAVE-mode: Saves a data for one measurement by manual operation. LOGGING-mode: Automatically saves a data from the start of logging. Memory capacity SAVE-mode: 100 data...
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To save a Data (LOGGING-mode) In logging measurement mode, the time needs to be set. Note that changing the batteries resets the time to 00:00. Set the time by referring to the Set-up function. 1) Press the MEMORY key. (The display shows the “ MEM ”symbol.) 2) Press the LOG (MIN/MAX) key.
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<To delete of saving data> Delete method (SAVE-mode) • To delete all data 1) Press the MEMORY key. (The display shows the “ MEM ”symbol.) 2) Hold down the SAVE (HOLD) key for one second. (The display shows the “ CLr ? ”symbol.) 3) Press the SAVE (HOLD) key.
4.5 AUTO POWER OFF Function <To use the AUTO POWER OFF function> The display shows the “ AUTO OFF ”indication. • The instrument automatically turns off twenty minutes after the last key operation. The instrument will beep for approximately 30 seconds to alert the operator before the AUTO POWER OFF function takes effect. • Pressing any key or switch while the instrument is beeping postpones the power-off time. • Turning the function switch once after the power to the instrument is automatically turned off switches the instrument on again. <To cancel the AUTO POWER OFF function>...
4.6 Set-up Function The following settings can be made using the Set-up function: • time setting • default setting of dBm measurement reference resistance • default setting of detection method during AC measurement • default setting of LOGGING interval • default setting of number display/time display during LOGGING mode • sound on/off setting (beep of buzzer) • reset to factory preset mode 1) Press the SHIFT key shows “Shift” on the display. 2) Press the LIGHT key while holding down the SHIFT key changes the mode to Set-up mode (from Set-up to time display).
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<Default setting of dBm measurement reference resistance> Set a default value of the reference resistance during dBm measurement mode. 1) Display “db-r” by using the LIGHT key. The reference value appears on the display. HOLD 2) Select the reference resistance by using the ▲ (RANGE) key or ▼ (REL) key. 3) Press the HOLD key to save the setting. “SEt” appears and then “db-r.” Setting values of reference resistance 4, 8, 16, 32, 50, 75, 93, 110, 125, 135, 150, 200, 250, 300, 500, 600, 800, 900, 1000, 1200Ω(default value is 600Ω)
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<Default setting of number display/time display during LOGGING mode> Set the sub-display during LOGGING mode. (The numbers of saved data or time (minute : second)) Default is the numbers of saved data. 1) Pressing the LIGHT key shows “LG. Unt” on the display. : No. : CLOCK HOLD 2) Select the desired setting by using the ▲ (RANGE) key or ▼ (REL) key. 3) Press the HOLD key to save the setting. “SEt” appears and then “LG. Unt.” <Sound on/off setting> Set the sound on/off (beep of buzzer) Even if the user sets the sound off, it goes off at the following points.
CAUTION To avoid damage to instrument When the measurement function is completed, turn the function switch back to the OFF position to turn off. 4.7 Additional functions simply set when POWER ON With pressing the following keys, turn the function switch to the desired position of any measurement mode (POWER ON-state).
4.9 5000 display mode This function switches 3.5-digit display (5000) and 5-digit display (50000). The function is not available for Capacitor, Temperature, DC+AC, Continuity and Frequency- mode measurement. The function (5000 display) operates until the power is turned off. Note Additional functions simply set when POWER ON can be used. 4.10 LCD Check The instrument can lit all segments and mark for LCD check. (Lit only while pressing the SELECT key.)
5. User Calibration Function It is recommended that the instrument be calibrated periodically. The instrument can be calibrated. CAUTION To avoid electrical shock • Only authorized engineers are allowed to calibrate the instrument using dedicated facilities. • Connect the calibrator to the instrument with the calibrator’s test leads. • Before carrying out calibration, read the instruction manual of the calibrator. • Temporarily remove the test leads from the instrument before switching measurement mode (function). <Conditions of calibration> Calibrator: With accuracy higher than of this instrument Ambient Environment: Temperature: 23±3ºC Humidity: 55%RH or less...
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<Table 1> Carry out calibration of ranges in accordance with Table 1. Calibration for 2 points (Input 1 and Input 2) is required other than DC range. After Input 1, carry out calibration of Input 2 repeating steps 6) and 7). For AC voltage and AC current ranges (marked with ...
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Table 1. Input Signal for Calibration Range Input 1 Input 2 Unit DC 50mV 0.000 50.000 DC 500mV 500.00 DC 2400mV 2000.0 DC 5V 5.0000 DC 50V 50.000 DC 500V 500.00 DC 1000V 1000.0 AC 50mV*1 5.000 50.000 AC 500mV 50.00 500.00 ...
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<Table 2> After completing the calibration for ranges in Table 1, carry out calibration for “ Frequency Characteristic”. The calibration for is frequency characteristic required for AC voltage and AC current ranges (marked with ). Calibration is carried out at the designated frequency in table 2. 1) Set the calibrator to Input value as an input to the instrument.
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l Calibration of Capacitor Range Before start calibration of the Capacitor range, turn the function switch back to the OFF position. 1) Turn the function switch from the OFF position to the (Capacitor) position while pressing the SELECT and RANGE keys at the same time. The display shows the “...
6. Battery and Fuse Replacement W ARNIN G Be careful not to burn yourself. • Fuse becomes a high temperature after current measurement, it is dangerous by touching it directly. When fuse or batteries are replaced after current measurement, please be sure to leave the main unit for 10 minutes for cooling. 6.1 Battery Replacement If the batteries fall below the normal operating voltage, the “...
6.2 Fuse Replacement If a current greater than the rated value flows when the instrument is in the current- measurement range, a protection fuse may blow. If this happens, replace that fuse. The instrument contains the following types of fuses. W ARNIN G • Turn the function switch to OFF(turn off the power).
7. Calibration and Maintenance Calibration Cycle It is recommended that the instrument be calibrated once every year. (SEE ALSO: User Calibration Function) Contacts of Services Please contact the sales representative from which you purchased the instrument. 8. Disposing the Product Waste Electrical and Electronic Equipment (WEEE), Directive 2002/96/EC This Product complies with the WEEE Directive (2002/96/EC) marking requirement. The affixed product label (see below) indicates that you must not discard this electrical/ electronic product in domestic household waste.
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