YOKOGAWA 734 01 User Manual
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YOKOGAWA 734 01 User Manual

YOKOGAWA 734 01 User Manual

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User's
Manual
Store this manual in a safe place for future reference.
734 01/02
Digital Multimeter
IM 73401
4th Edition
July. 2001

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Summary of Contents for YOKOGAWA 734 01

  • Page 1 User's 734 01/02 Manual Digital Multimeter Store this manual in a safe place for future reference. IM 73401 4th Edition July. 2001...
  • Page 3 Failure to do so may result in electric shock or other dangers that may lead to serious injury or the loss of life. Yokogawa M&C Corporation is in no way liable for any damage resulting from the user’s mishandling of the product.
  • Page 4 Regarding Safe Use of This Product For safe use of this product, the following safety symbols are used on the product: This indicates that the operator must refer to an explanation WARNING in the instruction manual in order to avoid the risk of serious injury or the loss of life.
  • Page 5 Testing leads • Use the probes supplied by Yokogawa M&C with this instrument. • Do not use testing leads that have deteriorated or are defective. • Disconnect testing leads from the circuit under test before opening the casing to replace the batteries or for any other reason.
  • Page 6 WARNING To avoid damage to instrument and/or electric shock The restrictions on the maximum voltage level for which the 734 01 and 734 02 can be used, depend on the over-voltage categories specified by the safety standards. These category specifications are set to protect operators against transient impulse voltages and surge voltages in power line.

  • Page 7: Table Of Contents

    Contents 1. Overview ....................1 2. Specifications ..................3 2-1 General Specifications ..............3 2-2 Measurement Ranges ..............6 3. Operation ....................14 3-1 Precautions Before Measurement ..........14 3-2 Components ................15 3-3 Measuring Instruction ..............20 4. Battery and Fuse Replacement ............. 42 4-1 Battery Replacement ..............

  • Page 8: Overview

    1. Overview Fast and more accurate measurement The 734 01 and 734 02 digital multimeters use modulation for A/D conversion, which enable fast and more accurate measurement. Display 5-digit (LCD) Maximum Reading: 50000 Bar graph indicator Supports a variety of measurement function...
  • Page 9 Safety design Complied standards: CE standards Uses a current-input terminal shutter for preventing wrong input. Uses high-performance UL-standard fuses.

  • Page 10: Specifications

    2. Specifications 2-1 General Specifications Function: DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature, Capacitor, Duty cycle ratio, Decibel (dB), Averaging functuon, Relative values from the reference measurement values (REL ), Minimum value (MIN), Maximum value (MAX), Average value (AVG), Range Hold (R•H), Data Hold (D•H), Auto Hold (A•H), Peak Hold* (P•H), Continuity Check, Zero Adjustment (Capacitor, Resistance), Diode Test, Save to...
  • Page 11 Operating temperature and humidity ranges: -10 to 50ºC, 80%RH or less (no condensation) 70%RH or less at 40 to 50ºC. Storage temperature and humidity ranges: -25 to 60ºC, 70%RH or less (no condensation) Temperature coefficient:(Accuracy at 23 5ºC 0.05)/ºC or less (Temperature ranges: -10 to 18ºC and 28 to 50ºC) Operating altitude: 2000m max.
  • Page 12 EMS (Immunity) EN50082-1; 1997 EN61326-1; 1997+A1;1998 Effect of radiation immunity: Accuracy range of reading: [Rated accuracy +12% of maximum reading] for the strength of a radio-frequency electromagnetic field of 3V/m Standard accessories: Instruction manual: 1 Testing leads: 1set Batteries (included): 2 Fuse (included) 500mA/600V, 15A/600V Optional accessories:...

  • Page 13: Measurement Ranges

    *: Maximum Reading of 2400mV Range: 24000 NMRR: 80dB or more 50/60Hz –0.1% CMRR: 120dB or more 50/60Hz (Rs=1k‰) Response time: 1 sec max. AC Voltage Measurement 734 01 AC Coupling, Rms-value detection, Crest factor: <3 Input Maximum Accuracy Impe-...
  • Page 14 *1: At 5 to 100% of range *2: At 10 to 100% of range CMRR: 80dB or more DC to 60Hz (Rs=1k ) Response time: 2 sec max. DCV+ACV 734 01 Maximum Reading 5000, Crest factor: <3 Input Maximum Accuracy...
  • Page 15 DCV+ACV 734 02 Maximum Reading 5000, Crest factor: <3 Maxi- Accuracy Input Reso- Range Impe- Input lution 10 to 20Hz to 1k to 10k to 20k to 50k to dance Voltage 20Hz 1kHz 10kHz 20kHz 50kHz 100kHz 1000V 0.001V <50pF 1.5+10 0.5+10 1+10...
  • Page 16 500mA 0.01mA 0.0001A <0.1 Protected by a 1.5+20 1+20 2+30 0.001A 15A/600V fuse. Model 734 01/02 Accuracy At 5 to 100% of range Note: At 10 to 100% of range for 10A Range Response time: 2 sec max.
  • Page 17 500mA 0.1mA 0.001A <0.1 Protected by a 2+10 3+10 1.5+10 0.01A 15A/600V fuse. Model 734 01/02 Accuracy At 5 to 100% of range Note: At 10 to 100% of range for 10A Range Response time: Approx. 5 sec...
  • Page 18 Resistance Measurement Accuracy Input Measuring Open-loop Range Resolution Protective Current Voltage 73401 73402 Voltage 0.01 <1mA 0.0001k <0.25mA 0.1+2 0.05+2 0.001k <25 A <2.5V 600V rms 500k 0.01k <2.5 A 0.0001M 0.5+2 <1.5 A 0.001M <0.13 A Accuracy is specified after zero adjustment (resistance).
  • Page 19 Temperature Measurement TEMP Input Protective Range Resolution Accuracy Voltage -50 to 800˚C 0.1˚C 1+1.5˚C 600V rms -58 to 1472˚F 0.1˚F 1+3.0˚F Use optional Temperature Orobe: Thermocouple Type K Capacitor Measurement Input Protective Range Resolution Accuracy Voltage 0.001nF 50nF 0.01nF 500nF 0.1nF 0.001 F 600V rms...
  • Page 20 Duty cycle ratio Hz Range Resolution Accuracy 10 to 90% Accuracy *: At 10.00Hz to 500.0Hz, square wave At 40 to 100% of input voltage or current range Peak Hold P•H Maximum Reading 5000 Response Time Range Accuracy Maximum DCV, DCA 100 digit >1msec...

  • Page 21: Operation

    3. Operation 3-1 Precautions Before Measurement 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 22: Components

    3-2 Components Panel Description Display (LCD) SELECT (PRINT) key RANGE key HOLD (SAVE) key 5000 (READ) key (For Model 734 01) LIGHT (READ) key (For Model 734 02) REL /% key MIN/MAX (LOG) key MEMORY key Function switch Input terminal block...
  • Page 23 1) Function switch Turns off the power or select the measurement mode (function). Turns off the power. Resistance measurement AC voltage (V) measurement Capacitor measurement AC voltage (mV) measurement TEMP Temperature measurement DC voltage (V) measurement DC voltage (mV) measurement DC/AC current measurement Continuity check, Diode Test 2) SELECT key...
  • Page 24 Holds the peak value. The display shows the “ P•H ” symbol. (For Model 734 02) 5) 5000 key (For Model 734 01), LIGHT key (For Model 734 02) 5000 key: Used to select 3.5-digit display. Press this key once again to display 5-digit.
  • Page 25 6) REL / % key The instrument can calculate relative values or differences, and percentage values from the reference measurement values. Relative Calculation The display shows the “ REL ” symbol. The sub-display shows the reference voltage value. Percentage Calculation The display shows the “...
  • Page 26 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...

  • Page 27: Measuring Instruction

    3-3 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 testing leads are appropriate for the desired mode of measurement. •...
  • Page 28 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 black testing lead into the “ COM ” input terminal and the red testing lead into the “...
  • Page 29 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 30 <Forward-bias Diode Test> Connect the black testing lead to the cathode and the red testing lead to the anode. Silicon diodes should give a reading of approximately 0.5V and light-emitting diodes a reading between approximately 1.5V and 2.0V. <Reverse-bias Diode Test> Connect the black testing lead to the anode and the red testing lead to the cathode.
  • Page 31 Note Optional Temperature probe is required for temperature measurement. Temperature Probe: Thermocouple Type K Model: 7511 02 to 05 1) Turn the function switch to the “ TEMP ” position. 2) Plug the black terminal of measuring probe into the “ COM ” input terminal and the red terminal of measuring probe into the “...
  • Page 32 2) Please select between DC and AC. When selecting AC, press the SELECT key. 3) Plug the black testing lead into the “ COM ” input terminal and the red testing lead into the “A ”input terminal. If the current is in the order of mA or less, plug the red testing lead into the “...
  • Page 33 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.
  • Page 34 1) Turn the function switch to the voltage( mV) or the current( 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 black testing lead into the “ COM ” input terminal. Plug the red testing lead into the “...
  • Page 35 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 testing leads to the circuit under test. 3)Press the HOLD key to select Peak Hold.
  • Page 36 Relative and percentage calculation The instrument can calculate relative values or difference, and percentage values from the reference measurement values. (The range will be fixed.) <Relative (REL) calculation> Subtracts the reference value from the measured value to display the relative value or difference.
  • Page 37 Measured voltage value : 20log 1(V) 1) Turn the function switch to the V or mV position. 2) Press the SELECT key to select dBm dB (The display shows the “ dBm ”, “ dB ” symbol.) 3) Connect the testing leads to the circuit under test and then read the value when it stabilizes.
  • Page 38 The elapsed time is displayed as follows: 0 sec. to 99 min. and 59 sec.: steps of 1 sec. 100 min. or more: steps of 1 min. Press the HOLD key to stop recording. (The display shows the “ D•H ” symbol.) <To confirm the recording time>...
  • Page 39 Number of saved data Number of saved data is 3-digit numbers. When LOGGING-mode, “ L ” is attached to the top of 3-digit numbers. The instrument allocates the smallest number, between 000 to 999, that has not yet been used. Use the (RANGE) key or (REL /%) key switches the number of saved data.
  • Page 40 Note LOGGING-mode operation during HOLD-mode disables HOLD-mode. To load a Data (SAVE-mode) 1) Press the MEMORY key. (The display shows the “ MEM ”symbol.) 2) Press the READ (5000/ LIGHT*) key. 3) Press the SAVE (HOLD) key to select the number of saved data. Select the number with the (RANGE) key or (REL /%) key.
  • Page 41 • To overwrite (delete) 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.) 3) Use the (RANGE) key or (REL %) key to select the number of saved data.
  • Page 42 <To cancel the AUTO POWER OFF function> 1) Turn the function switch to the OFF. 2) With pressing the HOLD key, turn the function switch to the desired position of any measurement mode (function). The “ AUTO OFF ” indication turns off when the function is canceled. Note Additional functions simply set when POWER ON can be used.
  • Page 43 Note Additional functions simply set when POWER ON can be used. 5000 display mode (734 01) 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.
  • Page 44 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 testing leads. •...
  • Page 45 <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 ), calibration is carried out at 50Hz frequency.
  • Page 46 Table 1. Input Signal for Calibration Range Input 1 Input 2 Unit DC 50mV 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 500mV 50.00 500.00...
  • Page 47 <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.
  • Page 48 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 “...

  • Page 49: Battery And Fuse Replacement

    4. Battery and Fuse Replacement 4-1 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) 1.5V batteries) WARNING Be sure to disconnect the instrument from the circuit under test and testing leads before replacing the batteries.

  • Page 50: Fuse Replacement

    4-2 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. WARNING •...

  • Page 51: Calibration And Maintenance

    It is recommended that the instrument be calibrated once every year. (SEE ALSO: User Calibration Function) Contacts of Services Please contact one of the Yokogawa M&C sales offices listed on the back cover of this manual or the sales representative from which you purchased the instrument.
  • Page 52 YOKOGAWA CORPORATION OF AMERICA (U.S.A.) Phone: 1-770-253-7000 Facsimile: 1-770-251-2088 YOKOGAWA EUROPE B. V. (THE NETHERLANDS) Phone: 31-334-64-1611 Facsimile: 31-334-64-1610 YOKOGAWA AMERICA DO SUL S. A. (BRAZIL) Phone: 55-11-5681-2400 Facsimile: 55-11-5681-1274 YOKOGAWA ENGINEERING ASIA PTE. LTD. (SINGAPORE) Phone: 65-6241-9933 Facsimile: 65-6241-2606...

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