KYORITSU KEW 1051 Instrucion Manual
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KYORITSU KEW 1051 Instrucion Manual

KYORITSU KEW 1051 Instrucion Manual

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INSTRUCTION MANUAL
DIGITAL MULTIMETER
KEW 1051
1052
／

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Summary of Contents for KYORITSU KEW 1051

  • Page 1 INSTRUCTION MANUAL DIGITAL MULTIMETER KEW 1051 1052 ／...

  • Page 2: About This Manual

    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.
  • Page 3 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.
  • Page 4 • Do not operate the instrument in an atmosphere where any flammable or explosive gas is present. • Avoid using the instrument if it has been exposed to rain or moisture or if your hands are wet. Disassembly • No person, except personnel from KYORITSU, is authorized to disassemble this instrument.

  • Page 5: Table Of Contents

    Contents 1. Overview ......................5 2. Measurement Category ..................6 3. Specifications ...................... 7 3.1 General Specifications ................7 3.2 Accuracy ....................9 4. Operation ......................12 4.1 Precautions Before Measurement ............12 4.2 Components .................... 13 4.3 Measuring Instructions................17 4.3.1 AC Voltage Measurement ..............

  • Page 6: Overview

    1. Overview l Display 4-digit (LCD) Maximum Reading: 6000 Bar graph indicator l Supports a variety of measurement function Measurement function DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature, Capacitor, Continuity Check, Diode Test Other functions Data Hold (D•H), Auto Hold (A•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.

  • Page 7: Measurement Category

    2. Measurement Category W ARNIN G n Measurement Category (CAT.) The restrictions on the maximum voltage level for which the KEW1051, KEW1052 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...

  • Page 8: Specifications

    3. Specifications 3.1 General Specifications Measurement function: DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature, Capacitor, Continuity Check, Diode Test Other functions: Data Hold (D•H), Auto Hold (A•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.
  • Page 9 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. input voltage: AC/DC1000V) CAT.IV (Max. input voltage: AC/DC600V) Pollution degree 2, indoor use, 2000m max.

  • Page 10: Accuracy

    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 Maximum Range Resolution Accuracy Input Resistance Input Voltage 10MΩ...
  • Page 11 AC Current Measurement [RMS] RMS value detection, sine wave Accuracy Voltage Maximum Range Resolution Drop Input Current 50/60Hz 40Hz to 1kHz 600μA 0.1μA < 0.12mV/μA 6000μA 1μA 440mA Protected by a 60mA 0.01mA 440mA/1000V fuse. < 3.3mV/mA 0.75+5 1.5+5 440mA 0.1mA 0.001A 10A Protected by a...
  • Page 12 Temperature Measurement TEMP Input Protective Range Resolution Accuracy Voltage -50 ~ 600°C 0.1°C 2+2°C 1000V rms -58~ 999.9°F 0.1°F 2+3.6°F -58~ 1112°F 1°F 2+3°F Use optional Temperature Probe: Thermocouple Type K Capacitor Measurement Input Protective Range Resolution Accuracy Voltage 10nF 0.01nF 2+10 100nF...

  • Page 13: Operation

    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.

  • Page 14: Components

    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 KEW1052 only MEMORY Key KEW1052 only Function switch Input terminal block Black Actions indicated in parenthesis are available at Memory Function (KEW1052 only).
  • Page 15 1) Function switch Turns off the power or select the measurement mode (function). Ω Turns off the power Resistance measurement AC voltage (V) measurement Capacitor measurement DC voltage (V) measurement TEMP Temperature measurement DC/AC voltage (mV) measurement μA (SENSOR mode) DC/AC current measurement Continuity Check Diode Test...
  • Page 16 5) LIGHT key Press this key once to turn on the LCD backlight for approximately one minute. The LCD backlight is lit for approximately one minute. (To postpone turned on time, press this key once again.) To cancel the function, hold down this key for more than one second. 6) REL ∆ / % key The instrument can calculate relative values or differences, and percentage values from the reference measurement values.
  • Page 17 ■ Display (LCD) Description Symbol and Unit Description Appears when in DC-mode measurement Appears when in 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...

  • Page 18: Measuring Instructions

    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. •...

  • Page 19: Measurements With Sensor

    4.3.3 Measurements with SENSOR (SENSOR) 1) Turn the function switch to the “ mV ” position. 2) Get the instrument in the DC SENSOR mode with the SHIFT + SELECT Keys. Press of the SELECT Key again to use AC SENSOR. Input voltage will be displayed on the sub-display, and values and units SENSOR set according to “input, display and unit settings of SENSOR mode”...

  • Page 20: Continuity Check

    4.3.5 Continuity Check ( 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 “ ”...

  • Page 21: Temperature Measurement

    <Reverse-bias Diode Test> Connect the black test lead to the anode and the red test lead to the cathode. Normally, the display shows the “ OL ” symbol, indicating that the diode under test is normal. The diode is defective if the display gives a certain voltage level. Red test Black test Black test...

  • Page 22: Current Measurement

    Note The default temperature read-out of the Digital Multimeters is in Celsius (°C). To change it to Fahrenheit (°F), it is necessary to proceed as follows: Changing the temperature unit setting to Fahrenheit Displaying “ ºC ” only is configured at factory before shipment. Carry out the following setting procedure to display “...

  • Page 23: Capacitor Measurement

    4.3.9 Capacitor Measurement ( 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. • Before starting measurement, be sure to discharge the capacitor under check. 1) Turn the function switch to the “...

  • Page 24: Function To Change Rms Detection To/From Mean Detection

    4.3.11 Function to change RMS detection to/from MEAN detection mode (KEW1052 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 Voltage measurement mode (ACV, ACmV) by using the function switch and the SELECT key.

  • Page 25: Auto Hold Function

    4.3.13 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.

  • Page 26: Min/Max/Avg Function (Kew1052 Only)

    4.3.15 MIN/MAX/AVG Function (KEW1052 only) 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”...

  • Page 27: Memory Function (Kew1052 Only)

    4.4 Memory Function (KEW1052 only) <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...
  • Page 28 To save a Data (LOGGING-mode) 1) Press the MEMORY key. (The display shows the “ MEM ”symbol.) 2) Press the LOG (MIN/MAX) key. (The sub-display shows the logging interval (period).) (RANGE) key or   (REL / %) key. Set the value with the The default setting is one second.

  • Page 29: Auto Power Off Function

    • 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.) (RANGE) key or   3) Use the (REL /%) key to select the number of saved data. 4) Press the SAVE (HOLD) key to save (over write) the data.
  • Page 30 Note Additional functions simply set when POWER ON can be used. <To enable the AUTO POWER OFF function once again> 1) Turn the function switch to the OFF. 2) Turn the function switch to the desired position of any measurement mode (function). The AUTO POWER OFF function is enabled again.
  • Page 31 1) Display “Ac” by using the LIGHT key or SHIFT key. HOLD 2) Select the detection method by using the ▲ (RANGE) key or ▼ (REL) key. 3) Press the HOLD key to save the setting. 4) “SEt” appears and then “Ac.” <Default value of LOGGING interval>...
  • Page 32 <input, display and unit settings of SENSOR mode> Settings of input voltage in the SENSOR mode at the mV function, main display and the unit for input voltage can be made. 1) Display as follows by using the LIGHT key or SHIFT key. Then parameters can be changed will blink.

  • Page 33: Additional Functions Simply Set When Power On

    4.7 Additional functions simply set when POWER ON CAUTION To avoid damage to instrument When the measurement function is completed, turn the function switch back to the OFF position to turn off. With pressing the following keys, turn the function switch to the desired position of any measurement mode (POWER ON-state).

  • Page 34: User Calibration Function

    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. •...
  • Page 35 Carry out calibration of ranges in accordance with Table 1. 1) Turn the function switch from the OFF position to the mV position while 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.

  • Page 36: Battery And Fuse Replacement

    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.

  • Page 37: Fuse Replacement

    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 •...

  • Page 38: Calibration And Maintenance

    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.
  • Page 40 DISTRIBUTOR Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations. 02-10 92-2006A...

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