User`s Manual - Test Equipment Depot
Contents
1. _ SSS eee User s eae 734 01 02 Digital Multimeter Test Equipment 99 Washington Street Depot Melrose MA 02176 Fax 781 665 0780 1 800 517 8431 TestEquipmentDepot com Store this manual in a safe place for future reference YOKOGAWA ee i 4th Edition Yokogawa M amp C Corporation July 2001 Thank you for purchasing our Model 734 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 result in electric shock or other dangers that may lead to serious injury or the loss of life Yokogawa M amp C Corporation is in no way liable for any damage resulting from the user s mishandling of the product For safe use of this product the following safety symbols are used on the product E About This Manual Every effort has been made to ensure accuracy in the preparation of this manual However should any errors or omissions come to the attention of the user please contact Yokogawa M amp C Corporation The contents of this manual are subject to change without prior notice because of improvement in performance or function e Allrights reserved No part of this manual may be reproduced in any from without Yokogawa M amp C Corporation2. Black testing Red testing Red testing Black testing lead lead lead lead gt Figure 1 Forward bias Figure 2 Reverse bias Diode Test Diode Test Temperature Measurement TEMP VAN 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 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 4 V Q e kK TEMP input terminal 3 Contact the measuring probe to the under test and then read the value when it stabilizes To switch temperature units Displaying C only is configured at factory before shipment Carry out the following setting procedure to display F While pressing the SELECT RANGE and HOLD key simultaneously turn the function switch to the TEMP position Next time pressing the SELECT key the temperature unit switches from C to F Current Measurement uA mA A Amma 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
3. 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 J V Q e kt TEMP input terminal 4 Connect the testing leads to the circuit under test and then read the value when it stabilizes Resistance Measurement Q AN 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 Q position 2 Plug the black testing lead into the COM input terminal and the red testing lead into the j V Q e k TEMP input terminal 3 Connect the testing leads to the circuit under test and then read the value when it stabilizes Note Zero adjustment Zero adjustment is recommended for correct measurement After executing 1 2 above short the two testing leads Press the SELECT key for adjust The display shows the 0 0Q value The value stores till turn off Continuity Check A 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 f
4. s written permission Regarding Safe Use of This Product For safe use of this product the following safety symbols are used on the product Amma This indicates that the operator must refer to an explanation in the instruction manual in order to avoid the risk of serious injury or the loss of life A This indicates that the operator must refer to an explanation WNE in the instruction manual in order to avoid the risk of injury or damage to the product Note This indicates information that is essential for handling the instrument or should be noted in order to familiarize yourself with the instrument s operating procedures and or functions Danger Handle with Care This symbol indicates that the operator must refer to an explanation in the instruction manual in order to avoid risk gt of injury or death of personnel or damage to the instrument Double Insulation This symbol indicates double insulation o Direct Current This symbol indicates DC voltage current Alternating Current This symbol indicates AC voltage current DC AC This symbol indicates AC and DC Fuse This symbol indicates a fuse Ground This symbol indicates ground earth IF h el ii Amma E Always observe the following instructions Failure to do so may result in electric shock or other dangers that may lead to serious injury or the loss of life Testing leads e Use the probes supplied by Yokogawa M amp C with this instr
5. A RANGE key or V REL A key The default setting is one second The display shows FULL when the logging data is already saved When saving the new data perform delete of data 3 Press the LOG MIN MAX key to start logging The MEM symbol is flashing 4 To cancel the function hold down the MEMORY key for one second When memory capacity becomes full the function is automatically canceled MEM symbol disappears 32 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 V RELA key 4 To cancel the function hold down the MEMORY key for one second MEM symbol disappears To load a Data LOGGING mode 1 Press the MEMORY key The display shows the MEM symbol 2 Press the READ 5000 LIGHT key 3 Press the LOG MIN MAX key to select the number of saved data Select the number with the RANGE key or V RELA key 4 To cancel the function hold down the MEMORY key for one second MEM symbol disappears lt To delete of saving data gt Delete method SAVE mode e To delete all data 1 Press the MEMORY key The display shows the MEM symbol 2 Hold down the SAVE H
6. can not be applied to unstable signals 27 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 The display shows the PeH 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 Note Even though the input signals DCV DCA have negative polarity the peak value can be measured when the peak is in the positive direction 1 Press the REL A key to relative calculation in PEAK HOLD mode The display shows the A symbol and the relative peak value 2 Press the REL A key to percentage calculation The display shows the symbol and the percentage peak value SEE ALSO Next section Relative and percentage calculation When resetting the peak value press the MIN MAX key Then new peak value can be in HOLD To cancel the percentage calculation Press the REL A key again symbol disappears then retrieves the PEAK HOLD mode 28 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 lt
7. to 20kHz Voltage DCV ACV WO 734 02 Maximum Reading 5000 Crest factor lt 3 Accuracy Maxi Reso DC DC DC DC DC DC mum lution 10 to 20Hzto 1kto 10k to 20k to 50k to Input 20Hz IkHz 10kHz 20kHz 50kHz 100kHz Voltage 1 10 2 10 5 20 Accuracy 1 At 5 to 100 of range 2 At 10 to 100 of range CMRR 80dB or more DC to 60Hz Rs 1kQ Response time Approx 5 sec DC Current Measurement A Accuracy 73401 02 Resolution 0 01NA 0 1A 0 001mA 0 01mA 0 0001A 0 001A lt 4mV mA lt 0 1V A __ Protected by a 15A 600V fuse Response time sec max AC Current Measurement A 734 01 Resolution OOTA O luA 0 001mA 0 01mA 0 0001A 0 001A Accuracy 10 to 20Hz 20Hz to 1kHz AC Current Measurement A 734 02 500uA Accuracy Crest factor lt 3 Voltage Drop lt 4mV mA Maximum Input Current 500mA Protected by a 500mA 600V fuse lt 0 1V A Voltage Resolution 0 01NA 50004A OIuA 50mA 0 001mA 500mA 0 01mA 20Hz to 1kHz 1k to 5kHz Drop 15A Protected by a 15A 600V fuse Crest factor lt 3 Maximum Input Current 500mA Protected by a 500mA 600V fuse SA 0 0001A 10A 0 001A Model 734 01 02 Accuracy At 5 to 100 of r
8. voltage V mV or the current y 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 JF V Q e lt TEMP input terminal when voltage measurement Plug the red testing lead into the suitable input terminal A or AemA for current value when current measurement 4 Contact the measuring probe to the under test and then read the value when it stabilizes The display shows frequency value in main display and duty cycle ratio value in sub display AUTO HOLD Function The instrument can automatically retain the measured value when the testing leads are handled as described below 1 Press the HOLD key to select u t Auto hold function The display shows the AeH symbol 2 Connect the testing leads to the circuit under test 3 When the reading stabilized the buzzer sounds 4 Remove the testing leads from the circuit under test 5 The display shows the measured value that is retained You can repeat steps 2 to 4 as many times as you like as long as the display shows the AeH symbol Note e In DC AC voltage measurement the Auto hold function is only available for ranges greater than the 5V range This function is not available for Temperature Capacitor and Frequency measurement The Auto hold function
9. 000 0 000 50 000 0 00 500 00 0 0000 5 0000 0 000 30 000 Continuity Check 0 0 500 0 DC 500A 500 00 DC 5000 A 5000 0 DC 50mA 50 000 DC 500mA 500 00 DC 5A 5 0000 DC 10A 10 000 OAC 500A 50 00 500 00 OAC 5000 A 500 0 5000 0 OAC 50mA 5 000 50 000 OAC 500mA 50 00 500 00 OAC 5A 0 5000 5 0000 OAC 10A 1 000 10 000 39 lt Table 2 gt 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 O 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 Do not next key operation till buzzer sounds Table 2 Input Signal for Calibration OAC 500mV 7 500 00 OAC 5V 5 0000 oacsoy XH 50 000 OAC 500V J 500 00 OAC 1000V 1kHz 400Hz 1000 0 OAC 500A 500 00 OAC 50004A 5000 0 OAC 50mA 50 000 OAC 500mA 500 00 OAC 5A 5 0000 OAC 10A J 10 000 40 Calibration of Capacitor Range Before start calibration of the Capacitor range turn the function switch back to the OFF position 1 9 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 CAL s
10. DATA HOLD Holds the display readings The display shows the DeH symbol AUTO HOLD Holds the measured value when the testing leads are handled The display shows the AeH symbol PEAK HOLD Holds the peak value The display shows the PeH 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 LIGHT key Use to turn on the LCD backlight 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 Enables switching 3 5 digit display and 5 digit display To execute the above please use Additional functions simply set when POWER ON 17 6 REL A key The instrument can calculate relative values or differences and percentage values from the reference measurement values 1 Relative Calculation The display shows the REL symbol The sub display shows the reference voltage value 2 Percentage Calculation The display shows the symbol The sub display shows the reference voltage value 7 MIN MAX key Displays the minimum value MIN maximum value MAX and average value AVG during measurement Pressing this key starts recording and at the same time the display sh
11. Duty cycle ratio Decibel dB Averaging functuon Relative values from the reference measurement values REL A Minimum value MIN Maximum value MAX Average value AVG Range Hold R H Data Hold D eH Auto Hold A H Peak Hold PeH Continuity Check Zero Adjustment Capacitor Resistance Diode Test Save to Memory LCD backlight For model 734 02 only AY modulation 5 digit LCD Maximum Reading 50000 Polarity Indicator Appears automatically when the polarity is negative Overrange Indicator OL Low battery Indicator gmg Appears when the batteries become low Digital display 3 times per second When frequency measurement one times per second When capacitor measurement 50mF max 0 03 time per second Bar graph display 10 times per second Operating temperature and humidity ranges 10 to 50 C 80 RH or less no condensation 70 RH or less at 40 to 50 C Storage temperature and humidity ranges 25 to 60 C 70 RH or less no condensation Temperature coefficient Accuracy at 2345 Cx 0 05 C or less Operating altitude Power supply Battery life Withstand voltage External dimensions Weight Complied standards Temperature ranges 10 to 18 C and 28 to 50 C 2000m max above sea level AA size R6 1 5V batteries 2 Approximately 120 hours Operating hours of alkaline batteries when in DC voltage mode Note The battery life varies depending on the operating
12. M 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 uA mA input terminal 3 Connect the testing leads to the circuit under test and then read the value when it stabilizes Capacitor Measurement F AN 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 4 position 2 Plug the black testing lead into the COM input terminal and the red testing lead into the Fk V Q e lt TEMP input terminal 3 Open the testing lead and press the SELECT key in 5nF range to adjust the capacitance to zero The display shows 0 000 4 Connect the testing leads to the circuit under test and then read the value when it stabilizes Note When the capacitor check is below the capacity at zero calibration 0 00 is displayed until the power off Frequency Measurement Hz Duty cycle ratio Hz Acum 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
13. OLD key for one second The display shows the CLr symbol 3 Press the SAVE HOLD key All data is deleted 33 e 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 A RANGE key or V RELA key to select the number of saved data 4 Press the SAVE HOLD key to save the data 5 To cancel the function hold down the MEMORY key for one second MEM symbol disappears Delete method LOGGING mode e To delete all data 1 Press the MEMORY key The display shows the MEM symbol 2 Hold down the LOG MIN MAX key for one second The display shows the CLr symbol 3 Press the LOG MIN MAX key All data is deleted AUTO POWER OFF Function lt To use the AUTO POWER OFF function gt The display shows the AUTO OFF indication The instrument automatically turns off if no key is pressed for a period of 20 minutes The instrument will beep for approximately 30 seconds to alert the operator before the AUTO POWER OFF function takes effect e 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 34 lt To cancel the AUTO POWER OFF function gt 1 Turn the funct
14. Relative REL calculation gt Subtracts the reference value from the measured value to display the relative value or difference 1 Enter the reference value 2 Press the RELA key The display shows the A symbol and the sub display shows the reference value 3 Enter the measured value The display shows the relative value or difference lt Percentage calculation gt Calculates and display the percentage value according to the following equation value measured value reference value reference value 1 Enter the reference value 2 Press the RELA key The display shows the A symbol and the sub display shows the reference value 3 Enter the measured value Press the REL A key again The display shows the symbol Decibel calculation dBm dB The instrument can perform logarithmic calculations on a AC voltage Measured voltage value dBm 20log af Reference resistance value x 10 1mW Reference resistance 2 0dBm 29 Measured voltage value 1 V dBY 20log 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 4 When calculating relative value press the RELA key Note The instrument can switch select reference resistance value when measu
15. ange Note At 10 to 100 of range for 10A Range Response time 2 sec max 15A Protected by a 15A 600V fuse DCA ACA WO 734 01 Resolution 5004A Maximum Reading 5000 Crest factor lt 3 Accuracy 50004A 50mA DCA ACA O 734 02 DC 10 DC 20Hz to 20Hz to 1kHz Accuracy Voltage Maximum Drop Input Current lt 0 11 500mA mV A Protected by a lt AmV mA 500mA 600V fuse ISA lt 0 1V A_ Protected by a 15A 600V fuse Crest factor lt 3 Maximum Resolution DC 20Hz to 1kHz Voltage Drop Input Current lt 0 11 500mA mV 1A Protected by a lt 4 500mA 600V mV mA 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 10 15A Protected by a 15A 600V fuse lt 0 1 V A Resistance Measurement Q Resolution Accuracy Measuring Open loop 73401 73402 Current Voltage Voltage 0 01Q AT 0 1 2 0 05 2 0 01kQ 0 0001MQ 0 542 0 001IMQ 1 2 Accuracy is specified after zero adjustment resistance Response time 3 sec max at 500Q to 500kQ 10 sec max at SMQ to SOMQ Continuity Check Maximum Reading 5000 M ine Open Input Range Resolution Range of Operation SaSurng Y pen 00P Protective Current Voltage Voltage The buzzer turns on fo
16. appropriate for the desired mode of measurement 1 Turn the function switch to the uA 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 0 5A before the uA or mA position is selected 24 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 Tf the current is in the order of mA or less plug the red testing lead into the uA mA input terminal 4 Connect the testing leads to the circuit under test and then read the value when it stabilizes DC AC Current Measurement Amma 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 1 Turn the function switch to the uA 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 0 5A before the uA or mA position is selected 2 Press the SELECT key to select the DC AC measurement The display shows the symbol Plug the black testing lead into the CO
17. asurement The 734 01 and 734 02 digital multimeters use AD 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 DC Voltage AC Voltage DC Current AC Current Resistance Frequency Temperature Capacitor Duty cycle ratio Decibel dB Averaging when the measured value may greatly fluctuate Relative values from the reference measurement values RELA Minimum value MIN Maximum value MAX Average value AVG Range Hold R H Data Hold DeH Auto Hold A H Peak Hold PeH Continuity Check Zero Adjustment Capacitor Resistance Diode Test Save to Memory LCD backlight For model 734 02 only Communication Optional communication unit is required Enables downloading of measurement data to a personal computer using optional communication package Uploading of data making trend graph and downloading to EXCEL are possible according to applications Output of measurement data to the optional printer is possible Safety design Complied standards CE standards Uses a current input terminal shutter for preventing wrong input Uses high performance UL standard fuses 2 Specifications 2 1 General Specifications Function Measuring method Display Measurement cycle DC Voltage AC Voltage DC Current AC Current Resistance Frequency Temperature Capacitor
18. conditions 5 5kVrms AC for one minute across input terminals and casing Approximately 85 W x191 H x40 D mm Approximately 450g Safety standards EN61010 1 1995 EN61010 2 031 1995 Overvoltage category III Max input voltage AC DC600V Overvoltage category II Max input voltage AC DC1000V Pollution degree 2 EMC standards EMI Electro Magnetic Interference EN55011 1998 EN61326 1 1997 A1 1998 Class B Group 1 EMS Immunity EN50082 1 1997 EN61326 1 1997 A1 1998 Effect of radiation immunity Standard accessories Optional accessories Accuracy range of reading Rated accuracy 12 of maximum reading for the strength of a radio frequency electromagnetic field of 3V m Instruction manual 1 Testing leads 1set Batteries included 2 Fuse included 500mA 600V 15A 600V Communication package with communication cable Engligh version 920 01 E Package with RS 232C Cable 920 01 E P Temperature probes 751102 to 05 Carrying case For the 734 main unit with testing leads B9646HH For the 734 main unit with testing leads and communication cable 930 14 Fuse 500mA 600V A1518EF 15A 600V A1519EF Testing leads 1set RD031 Printer 97010 AC adapter for printer Europe 940 06 AC adapter for printer USA 940 07 Thermal paper for printer 10 rolls 970 80 RS 232C Cable for printer 910 15 2 2 Measurement Ranges Test conditions Temperature and humidity 2345 C at 80 RH or less Accuracy percentage of r
19. ded that the instrument be calibrated once every year SEE ALSO User Calibration Function Contacts of Services Please contact one of the Yokogawa M amp C sales offices listed on the back cover of this manual or the sales representative from which you purchased the instrument Phillips screw 44
20. eading number of digits Note Each response time is a value to rated accuracy within selected range DC Voltage Measurement V 50mV Resolution 0 001mV Accuracy 73401 73402 0 1410 0 05 10 500mV 0 01mV 0 0442 0 0242 2400mV 0 1mV Input Resistance Approx 100M o Maximum Input Voltage 1000V DC 5V 0 0001 V 0 025 5 50V 0 001 V 0 07 2 500V 0 01V 1000V CMRR 120dB or more 50 60Hz Rs 1k c 0 1V 1000V rms AC Maximum Reading of 2400mV Range 24000 NMRR 80dB or more 50 60Hz 0 1 Response time sec max AC Voltage Measurement V 734 01 Range Resolution AC Coupling Rms value detection Crest factor lt 3 10 to 20Hz Accuracy 20Hz to 1k to 1kHz 10kHz 10k to 20kHz Maximum Input Voltage Input Impe dance AC Voltage Measurement g V 734 02 AC Coupling Rms value detection Crest factor lt 3 Maxi Reso mum lution Ikto 10k to Input 10kHz 20kHz Accuracy 0 01mV 0 0001V 0 001V 0 01V 0 1V Accuracy 1 At 5 to 100 of range 2 At 10 to 100 of range CMRR 80dB or more DC to 60Hz Rs 1kQ Response time 2 sec max DCV ACV mto 734 01 Maximum Reading 5000 Crest factor lt 3 Accuracy Maximum Range Resolution DC 10 DC 20Hz DC 1k DC 10k Input to 20Hz to kHz to 10kHz
21. egory Safety standards EN61010 1 CAT III Covers the path from an indoor distribution switchboard to a mains outlet CAT II Covers a primary stage circuit of equipment connected to a mains outlet CAT I Covers a secondary stage circuit of power transformer of equipment Note Radiation immunity affects the accuracy of the 734 01 and 734 02 under the conditions specified in EN5008 1 and EN61326 1 Use of this instrument is limited to domestic commercial and light industry applications If equipment generating strong electromag netic interference is located nearly the instrument may malfunction iv Contents Ts Oveni ew de ict Atheist toh MeL ALL ag a ud od 1 2r Specifications i arrinin oaa e TER EEA OKA 3 2 1 General Specifications sssesseseseesesesreseseeestsrestsessestsrertseseesesee 3 2 2 Meastirement Ranges oncer a 6 3 OperatiOtirs c Yh eared SONA ete seces eat aneas eee 14 3 1 Precautions Before Measurement 00 0 0 cece eseeseeeeeeeeseeeee 14 3 2 COMPONENES sosi oee dashed lea a E EEE 15 3 3 Measuring Instruction n ssissnneen i 20 4 Battery and Fuse Replacement c cccsscescesesceseeeceeeseeeeeeeseeeeeeeaeeaeeees 42 4 1 Battery Replacement sisser ia i 42 4 2 Fuse Replacement s sssssssssssrssssesessssressststssesrstsentssesreresrsrssesest 43 5 Calibration and Maintenance s sssssessseseseesssressstsessesreseseessesrertseseeses 44 1 Overview Fast and more accurate me
22. es and Battery holder install the battery holder back into the N casing 5 Close the casing and fasten it with the four Ll oO L Ix Screws screws 42 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 Amma Be sure to disconnect the instrument from the circuit under test and testing leads before replacing the batteries Do not operate the instrument with the casing left open In order to avoid damage to the instrument or any possible accident use fuses of the specified rating Fuse rating F1 A1518EF 500mA 600V F2 A1519EF 15A 600V To replace the fuse 1 Remove the four screws on the back of the casing 2 Open the casing 3 Take the battery holder out of the casing 4 Remove the blown fuse from the fuse holder Install a new fuse in the holder Make sure the fuse rating 5 Close the casing and fasten it with the four screws F1 Type A1518EF 600 V 500 mA protection fuse F2 Type A1519EF 600 V 15 A protection fuse View with the Casing Open Test Equipment Depot 800 517 8431 ry Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 5 Calibration and Maintenance Calibration Cycle It is recommen
23. ion 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 lt To enable the AUTO POWER OFF function once again gt 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 The display shows the AUTO OFF indication Amm To avoid damage to instrument When the measurement function is completed turn the function switch back to the OFF position to turn off 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 MIN MAX Averaging Function calculates the average of 8 times RANGE 5000 3 5 digit display For 734 02 only SELECT LCD check Lit only while pressing the SELECT key HOLD Cancels the Auto power off function HOLD REL A _ Reset all calibration values to those before shipment SELECT RANGE Calibration function Averaging Function The measured value may greatly fluctuate the instrument can calculate the average 8 times approx 2 4 seconds This function is availab
24. lay resulting in incorrect average data For widely varying signal measurement set the appropriate range in which the MAX or MIN does not change to OL display Memory Function lt To save a Data in internal memory gt 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 50 data LOGGING mode one time 600 data 31 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 V REL A key switches the number of saved data To save a Data SAVE mode 1 Press the MEMORY key The display shows the MEM symbol 2 Press the SAVE HOLD key The display shows the number of saved data 3 Press the SAVE HOLD key to save the data Another press of the SAVE HOLD key saves a data for the second time measurement or later 4 To cancel the function hold down the MEMORY key for one second MEM symbol disappears 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 display shows the logging interval period Set the value with the
25. le for Voltage Current and Resistance mode measurement 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 Note Additional functions simply set when POWER ON can be used LCD Check The instrument can lit all segments and mark for LCD check Additional functions simply set when POWER ON can used Lit only while pressing the SELECT key 36 User Calibration Function It is recommended that the instrument be calibrated periodically The instrument can be calibrated Armm 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 Before carrying out calibration read the instruction manual of the calibrator Temporarily remove the testing leads from the instrument before switching measurement mode function lt Conditions of calibration gt Calibrator With accuracy higher than of this instrument Ambient Environment Temperature 23 3 C Humidity 55 RH or less Leave the instrument for 30 minutes under above conditions before carrying out calibration After reference valve of Calibrator stabilizes Press the key to confirm for calib
26. low Bar graph indicator Range indicator 19 3 3 Measuring Instructions Amma 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 Temporarily remove the testing leads from the device under test before operating the function switch AC Voltage Measurement V mV 1 Turn the function switch to the V or mV position 2 Plug the black testing lead into the COM input terminal and the red testing lead into the 4 V Q e lt TEMP input terminal 3 Connect the testing leads to the circuit under test and then read the value when it stabilizes DC Voltage Measurement V mV 1 Turn the function switch to the V or mV position 2 Plug the black testing lead into the COM input terminal and the red testing lead into the 4 V Q e lt TEMP input terminal 3 Connect the testing leads to the circuit under test and then read the value when it stabilizes Note If mV range is selected and the testing leads are left open circuited the instrument may give a certain reading This dose not affect your measurement 20 DC AC Voltage Measurement
27. ows MIN MAX AVG to release AUTO POWER OFF 8 MEMORY key Data can be stored in internal memory using this key Used when outputting to printer with the optional communication package Display LCD Description mamm HA8 ponn pe i COOOL ik QHz LLL 0 1 2 3 4 51000 18 Appears when in DC 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 DATA HOLD indicator AUTO HOLD indicator PEAK HOLD indicator Lit when in MIN MAX AVG mode Lit when in MIN MAX AVG mode Lit when in MIN MAX AVG mode Auto power off indicator nit for capacitance measurement nit for voltage measurement nit for current measurement nit for resistance measurement nit for temperature measurement nit for frequency measurement ecibel calculation indicator Main display nit for percentage calculation Sub display nit for duty cycle ratio calculation mV V Sub display Unit for voltage measurement dBY Hz s Sub display Unit for recording time when in MIN MAX AVG mode A889 Recording time indicator when in MIN MAX AVG mode Sub display Number of saved data indicator Reference value indicator when relative calculation Duty cycle ratio indicator Voltage value dBY HzY indicator Reference resistance value dBm indicator Appears when the batteries become
28. r a 5002 0 1Q _ resistances lower than a ae lt 5V 600V rms 100450 om Diode Test Kt Measuring l Input Range Resolution Accuracy Current Open looP protective Vf 0 6V Voltage Voltage Approx 11 Temperature Measurement TEMP Input Protective Voltage Resolution Accuracy 50 to 800 C 14 1 5 C 58 to 1472 F 1 3 0 F Use optional Temperature Orobe Thermocouple Type K Capacitor Measurement Resolution Accuracy ko uye 0 001nF 0 01nF 0 1nF 0 001uF 0 01uF 0 1uF 0 001mF 0 01mF Accuracy is specified after zero adjustment capacitor 600V rms Frequency Measurement Hz AC Coupling Maximum Reading 9999 Range AUTO Resolution Accuracy 2 000 to 9 999Hz 9 00 to 99 99Hz 0 01Hz 90 0 to 999 9Hz 0 1Hz 900 to 9999Hz 1Hz 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 12 Duty cycle ratio Hz 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 aac 13 3 Operation 3 1 Precautions Before Measurement E 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 fla
29. ration valve 37 lt Table 1 gt Carry out calibration of ranges in accordance with Table 1 Calibration for 2 points Input 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 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 The display shows the symbol 3 Press the HOLD key twice The display shows the symbol 4 Press the RANGE key The display shows the mV symbol 5 Connect the instrument to the calibrator with the testing leads 6 Set the calibrator to Input 1 value as an input to the instrument 7 Press the HOLD key 8 Be sure to confirm that the function switch and input terminal are set to the desired range Carry out calibration of other ranges by repeating steps 6 and 7 9 To quit calibration turn the function switch back to the OFF position 38 Table 1 Input Signal for Calibration Input 2 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 OAC 500mV 50 00 500 00 OAC 5V 0 5000 5 0000 OAC 50V 5 000 50 000 OAC 500V 50 00 500 00 100 0 1000 0 0 00 500 00 0 0000 5 0
30. ring dBm The reference resistance value is switched as follows every time the RANGE key is pressed Shown in sub display Reference resistance value 4 8 16 32 50 75 93 110 125 135 150 200 250 300 500 600 800 900 1000 1200 Default value 600Q MIN MAX AVG Function The minimum value MIN maximum value MAX and average value AVG during measurement are shown 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 lt Recording time gt The timer is activated to show the elapsed time from the start and simultaneously the renewed time for MIN MAX is also recorded 30 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 DeH symbol lt To confirm the recording time gt For confirming the recording time press the MIN MAX key Subsequent pressing of this key repeats to display the present minimum value MIN maximum value MAX and average value AVG Press the HOLD key once again to restart recording Note e No influence is exerted on the recorded data even if the test leads are disconnected while the recording is stopped e Ifoverload is recorded the MIN or MAX display changes to OL disp
31. tion 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 Pressing this key in each measurement modes function described above selects other measurement modes function V mV 1 Hz Frequency measurement Voltage value is displayed 2 Hz Frequency measurement Duty cycle ratio 3 dBY dB measurement Voltage va eis displayed 4 dBm dBm measurement V DC AC measurement Q ZERO CAL Zero Adjustment of Resistance measurement 3 K Diode Test JH ZERO CAL Zero Adjustment of Capacitor measurement uA mA A Ioano AC voltage measurement 2 z DC AC measurement 3 Hz Frequency measurement Duty cycle ratio 16 3 RANGE key Allows the operator to select the measuring range Fixed ranges The display shows the ReH 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 this 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
32. ument 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 e Disconnect testing leads from the circuit under test before attaching detaching the testing leads to from the instrument Disconnect testing leads from the instrument before opening the casing to replace the batteries or for any other reason Casing Do not use the instrument if there is any damage to the casing or when the casing is removed Fuses e Use fuses of the specified rating when the fuse is replaced Operating Environment Do not operate the instrument in an atmosphere where any flammable or explosive gas is present e Avoid using the instrument if it has been exposed to rain or moisture or if your hands are wet Disassembly e No person except personnel from Yokogawa M amp C is authorized to disassemble this instrument iii Amma E 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 Do not apply any input level higher than maximum allowable input AC DC 600V CATIN AC DC 1000V CAT III Over voltage Cat
33. unction switch to the position 2 Plug the black testing lead into the COM input terminal and the red testing lead into the 4 V Q e lt TEMP input terminal 3 Connect the testing leads to the circuit under test If the circuit is continuous no more than approximately 100Q the buzzer sounds Diode Test lt VAN 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 t 4 position Press the SELECT key to select Diode test 2 Plug the black testing lead into the COM input terminal and the red testing lead into the 4 V Q e lt TEMP input terminal 3 Connect the testing leads to the diode and then read the value when it stabilizes 22 lt Forward bias Diode Test gt 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 lt Reverse bias Diode Test gt Connect the black testing lead to the anode and the red testing 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
34. w in its appearance contact the vendor from which you purchased the product E Precautions of Operation and Storage Amm The instrument is shipped with batteries included ready for use after unpacking The batteries therefor may not last their full specified life Do not use the instrument near noise emitting equipment or where there may be a sudden change of temperature Otherwise the instrument may give an unstable reading or errors Removal of Dirt Do not wipe the instrument using any volatile such as benzine or paint thinner as this may damage or discolor the front panel Use a dry cloth to clean the instrument Storage Conditions Do not leave the instrument exposed to direct sunlight or in a hot and humid location such as the inside of a vehicle for any prolonged length of time Ifthe instrument will not be used for a prolonged period remove the batteries 14 3 2 Components E Panel Description A Display LCD m SELECT PRINT key RANGE key HOLD SAVE key 5000 READ key For Model 734 01 GC LIGHT READ key semi oo alae L For Model 734 02 etter Ce Gee VMAX LO mr RELA k mA A o key sins Eig UA AICS OF PSS nmax LOG key MEMORY key Function switch Ok a mV Gi za Mette as an Cams D nie CA AmA CON C101 Input terminal block 15 1 Func
35. ymbol then the PASS symbol Press the SELECT key The display shows the symbol Press the HOLD key twice The display shows the symbol Press the RANGE key The display shows the nF symbol Connect the instrument to the calibrator with the testing leads Set the calibrator to Input 1 value as an input to the instrument Press the HOLD key to confirm Set the calibrator to Input 2 value as an input to the instrument Press the HOLD key to confirm 10 Carry out calibration of other ranges by repeating steps 6 to 9 11 To quit calibration turn the function switch back to the OFF position Input 1 mE 50nF 500nF SuF SOF 41 4 Battery and Fuse Replacement 4 1 Battery Replacement If the batteries fall below the normal operating voltage the gpg symbol turns on Follow the steps below to replace the batteries with new ones AA size R6 1 5V batteries Amma Be sure to disconnect the instrument from the circuit under test and testing leads before replacing the batteries Acum Do not mix batteries of different types or new batteries with used ones e Make sure the polarities of the new batteries are exactly as shown on the battery holder To replace the batteries 1 Remove the four screws on the back of the casing 2 Open the casing E y Casihg 3 Take the battery holder out of the casing 4 Replace the batteries with new on
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