INSTRUCTION MANUAL DIGITAL MULTIMETER KEW 1061／1062
Thank you for purchasing our Model KEW1061, KEW1062 Digital Multimeter. This user’s manual describes the specifications and handling precaution for this Digital Multimeter. Before using this Digital Multimeter, thoroughly read this manual to get a clear understanding on proper use. Always observe the following instructions. 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.
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 WARNING instruction manual in order to avoid the risk of serious injury or the loss of life. CAUTION Note This indicates that the operator must refer to an explanation in the instruction manual in order to avoid the risk of injury or damage to the product.
WARNING n Always observe the following instructions. Failure to do so may result in electrical shock or other dangers that may lead to 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.
Contents 1. 2. 3. 4. Overview............................................................................................................ 65 Measurement Category...................................................................................... 66 Specifications..................................................................................................... 67 3.1 General Specifications............................................................................. 67 3.2 Accuracy.....................
5. 6. 7. 8 User Calibration Function................................................................................ 107 Battery and Fuse Replacement........................................................................ 112 6.1 Battery Replacement.............................................................................. 112 6.2 Fuse Replacement.................................................................................. 113 Calibration and Maintenance............................................
1. Overview l Fast and more accurate measurement The KEW1061 and KEW1062 digital multimeters use which enable fast and more accurate measurement.
2. Measurement Category WARNING 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. Ⅳ Measurement category CAT. I Ⅰ Ⅱ CAT. II Ⅲ CAT.III Ⅳ CAT. Ⅳ Description Remarks For measurements performed on circuits not directly connected to MAINS.
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.
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.
Standard accessories: Batteries : 4 Test leads: 1set (M-7220) Fuse (included): 440mA/1000V (M-8926), 10A/1000V (M-8927) Instruction manual: 1 Optional accessories: Carrying case Test leads (1set) Test leads with crocodile clip (1set) Fuse 440mA/1000V 10A/1000V Temperature probes USB Communication set M-9150 (for the main unit with test leads and communication cable) M-7220 M-7234 M-8926 M-8927 M-8405, 8406, 8407, 8408 M-8241 (Software, USB adapter and cable) Printer Adapter and
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 Range 50mV 500mV 2400mV 5V 50V 500V 1000V Resolution 0.001mV 0.01mV 0.1mV 0.0001V 0.001V 0.01V 0.1V V Accuracy KEW1061, KEW1062 0.05+10 0.02+2 Input Resistance Maximum Input Voltage Approx. 100MΩ 1000V DC 10MΩ 1000V rms AC 0.025+5 0.03+2 NMRR: 80dB or more 50/60Hz ±0.
AC Voltage Measurement [RMS] V KEW1062 Range AC Coupling, Rms-value detection, Crest factor*: <3 Resolution 50mV 0.001mV 500mV 0.01mV 5V 0.0001V 50V 0.001V 500V 0.01V 1000V* 0.1V Accuracy Maximum Input 10 to 20Hz to 1k to 10k to 20k to 50k to Impedance Input Voltage 20Hz 1kHz 10kHz 20kHz 50kHz 100kHz 2+80 0.4+40 5+40 5.5+40 *2 *2 *2 *2 1+30 *1 *2 0.4+30 *1 *2 1+40 *1 3+30 *2 15+40 *2 2+70 *2 11MΩ <50pF 1000V rmsAC 10MΩ <50pF 1000V DC 5+200 *2 - *: Crest factor <1.
DCV+ACV KEW1061 Range + Maximum Reading 50000, Crest factor*: <3 Accuracy Resolution DC, 10 to DC, 20Hz DC, 1k to DC, 10k 20Hz to 1kHz 10kHz to 20kHz 5V 0.0001V 50V 500V 1000V* 0.001V 0.01V 0.1V DCV+ACV KEW1062 Range 1+10 *1 *2 2+10 *2 *2 - 10MΩ <50pF Maximum Input Voltage 1000V rms AC 1000V DC + Maximum Reading 50000, Crest factor*: <3 Resolution 5V 0.0001V 50V 500V 1000V* 1.5+10 *1 Input Impedance 11MΩ <50pF 0.001V 0.01V 0.
AC Current Measurement [RMS] KEW1061 Range 500μA 5000μA 50mA 500mA*3 5A 10A Resolution 0.01μA 0.1μA 0.001mA 0.01mA 0.0001A 0.001A Resolution 500μA 5000μA 50mA 500mA *3 5A 10A 0.01μA 0.1μA 0.001mA 0.01mA 0.0001A 0.001A Rms-value detection, Crest factor: <3 Accuracy Voltage Drop 10 to 20Hz 20Hz to 1kHz 1.5+20 1+20 Maximum Input Current <0.11 mV/μA 440mA Protected by a 440mA/ 1000V fuse. <4mV/mA <0.1V/A AC Current Measurement [RMS] KEW1062 Range A 10A Protected by a 10A/1000V fuse.
AC Current Measurement [MEAN] KEW1062 Range Resolution 500μA 5000μA 50mA 500mA*3 5A 0.01μA 0.1μA 0.001mA 0.01mA 0.0001A 10A A MEAN value detection, RMS value calibration (sine wave) Accuracy 500Hz to 1kHz 10 to 20Hz 20 to 500Hz 0.001A 2+20 1.5 +20 2+30 3+20 2+20 4+30 Voltage Drop Maximum Input Current <0.11 mV/μA 440mA Protected by a 440mA/ <4 mV/mA 1000V fuse. <0.1 V/A 10A Protected by a 10A/ 1000V fuse.
DCA+ACA KEW1062 + Maximum Reading 50000, Crest factor: <3 Accuracy Maximum Input Range Resolution DC, 10 to DC, 20Hz DC, 1k to Voltage Drop 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 5A 0.0001A 10A Protected by a 2+10 1.5+10 3+10 <0.1 V/A 10A/1000V fuse. 10A 0.
Continuity Check Maximum Reading 5000 Range Resolution Range of Operation Measuring Current 500Ω 0.1Ω The buzzer turns on for resistances lower than 100±50Ω. Approx. 0.5mA Open-loop Input Protective Voltage Voltage <5V 1000V rms Diode Test Range Resolution Accuracy 2.4V 0.0001V 1+2 Measuring Current (Vf=0.6V) Approx. 0.
Frequency Measurement Hz Range (AUTO) 2.000 to 9.999Hz 9.00 to 99.99Hz 90.0 to 999.9Hz 0.900 to 9.999kHz 9.00 to 99.99kHz AC Coupling, Maximum Reading 9999 Resolution 0.001Hz 0.01Hz 0.1Hz 0.001kHz 0.01kHz Accuracy 0.02+1 *1 *2 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 10 to 90% Resolution 1% Accuracy ±1%*1 Accuracy *1: At 10.00Hz to 500.
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. n Precautions of Operation and Storage CAUTION • Insert the batteries in the instrument by referring to “6.1 Battery Replacement.
4.
1) Function switch Turns off the power or select the measurement mode (function). OFF Turns off the power. V mV V mV Ω AC voltage (V) measurement Resistance measurement Capacitor measurement AC voltage (mV) measurement DC voltage (V) measurement DC voltage (mV) measurement Continuity check, Diode Test TEMP μA mA A Temperature measurement DC/AC current measurement 2) SELECT key Pressing this key in each measurement modes (function) described above selects other measurement modes (function).
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. DATA HOLD: Holds the display readings.
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.
Symbol and Unit – + R•H AUTO AUTO OFF RMS LP-Ω Filter Shift nF, μF, mF mV, V μA, mA, A MΩ, kΩ, Ω °C / °F kHz, Hz dB, dBm % (Main-display) % (Sub- display) mV, V (Sub- display) s (Sub- display) (Sub- display) OL 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 Fixed ranges indicator AUTO range indicator
4.3 Measuring Instructions WARNING 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. • Temporarily remove the test leads from the device under test before operating the function switch. • Verify proper operation on a known source before use or taking action as a result of the indication of the instrument.
4.3.3 DC+AC Voltage Measurement ( + ) V ” position. 1) Turn the function switch to the “ 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. 4) Connect the test leads to the circuit under test and then read the value when it stabilizes. 4.3.4 DC, AC Voltage Dual Display ( • ) 1) Turn the function switch to the “DCV” position. 2) Press the SELECT key twice to change the mode to DC/AC voltage dual display.
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.
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. • ” position. 1) Turn the function switch to the “ Press the SELECT key to select Diode test. (The display shows the symbol.) 2) Plug the test leads into the input terminals. 3) Connect the test leads to the diode and then read the value when it stabilizes.
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. 1) Turn the function switch to the “ TEMP ” position.
4.3.10 Current Measurement (µA/mA/A) WARNING 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. Be sure not to exceed the limit in the 500 mA range.
4.3.11 DC+AC Current Measurement ( + ) WARNING 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. Be sure not to exceed the limit in the 500 mA range.
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” or “mA” position is selected.) 2) Press the SELECT key three times to select DC/AC dual display. DC current measurement appears on the main display and AC current on the sub-display.
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. V, mV) or 1) Turn the function switch to the voltage( the current (µ A, mA, A ) position. 2) Press the SELECT key to select the range of frequency. (The display shows the unit of frequency.) 3) Plug the test leads into the input terminals.
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. 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” on the display. 3) Press the REL key while holding down the SHIFT key to change to MEAN detection mode. “RMS” disappears on the display.
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) Remove the test leads from the circuit under test. 5) The display shows the measured value that is retained.
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. 3) Press the HOLD key to select Peak Hold. (The display shows the “ P•H ” symbol.) 4) The display shows the peak value. 5) When resetting the peak value in HOLD, press the MIN/MAX key. Then new peak value can be in HOLD.
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. Press the REL /% key again. (The display shows the“ % ” symbol.) 4.3.
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 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 LOGGING-mode: Logging data of one time Model KEW1061 1,000 data Model KEW1062 10,000 data Number of saved data Number of saved data is 4-digit numbers.
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. (The display shows the logging interval (period).) Set the value with the (RANGE) key or (REL /%) key. The default setting is one second. (The default settings can be changed. Refer to the Set-up function.
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. All data is deleted. • To overwrite selected data 1) Press the MEMORY key. (The display shows the “ MEM ”symbol.) 2) Press the SAVE (HOLD) key. (The sub-display shows the number of saved data.
4.5 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.
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.
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.
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.
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). This enables the following functions corresponding to the press keys.
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 Frequencymode 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.
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 ), calibration is carried out at 50Hz or 60Hz frequency. mV position while pressing the 1) Turn the function switch from the OFF position to the SELECT and RANGE keys at the same time.Table 1. Input Signal for Calibration Range Input 1 Input 2 Unit DC 50mV 0.000 50.000 mV DC 500mV 500.00 mV DC 2400mV 2000.0 mV DC 5V 5.0000 V DC 50V 50.000 V DC 500V 500.00 V DC 1000V 1000.0 V 5.000 50.000 mV AC 50mV*1 50.00 500.00 mV AC 500mV 0.5000 5.0000 V AC 5V *2 50Hz/60Hz 5.000 50.000 V AC 50V 50.00 500.00 V AC 500V 100.0 1000.0 V AC 1000V 500Ω 0.00 500.00 Ω 5kΩ 0.0000 5.0000 kΩ 50kΩ 0.000 50.000 kΩ 500kΩ 0.00 500.00 kΩ 5MΩ 0.0000 5.0000 MΩ 50MΩ 0.000 30.
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. 2) Press the MEMORY key. 3) After 20 seconds, buzzer sounds and the instrument confirm calibration.l Calibration of Capacitor Range Before start calibration of the Capacitor range, turn the function switch back to the OFF position. (Capacitor) position while 1) Turn the function switch from the OFF position to the pressing the SELECT and RANGE keys at the same time. The display shows the “ CAL ” symbol then the “ PASS ” symbol. 2) Press the SELECT key. (The display shows the “ - ” symbol.) 3) Press the HOLD key twice. (The display shows the “ - - - ” symbol.) 4) Press the RANGE key.
6. Battery and Fuse Replacement WARNING 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 “ ”symbol turns on. Follow the steps below to replace the batteries with new ones. (AA-size (R6) 1.
6.2 Fuse Replacement If a current greater than the rated value flows when the instrument is in the currentmeasurement range, a protection fuse may blow. If this happens, replace that fuse. The instrument contains the following types of fuses. WARNING • Turn the function switch to OFF(turn off the power). • Be sure to disconnect the instrument from the circuit under test and test leads before replacing the fuses. • Do not operate the instrument with the casing left open.
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.
DISTRIBUTOR Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations.
