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Sanwa PC720M, Instruction Manual

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Sanwa PC720M Instruction Manual Download Page 6

― 3 ―

1-3 Overload Protection

Function

Measuring 

Terminal

Max. Rated Input Overload Protection

「 」

and

1000V dc/ac

1050V rms, 1450V peak

「

」,「 」

「

」,「 」

10V dc/ac

600Vrms

「 」,「

」

Do not apply 

any voltage or 

current.

「

」

T1+ and -

50mV dc

T2+ and -

0.63A/500V Fuse

Breaking capacity: 50kA

and

12.5A/500V Fuse

Breaking capacity: 20kA

「

」,「

」

mAμA

and

600mA dc/ac

Do not apply 

any voltage.

0.63A/500V Fuse

Breaking capacity: 50kA

「

」

and

10A dc/ac

Do not apply 

any voltage.

12.5A/500V Fuse

Breaking capacity: 20kA

Summary of Contents for PC720M

Page 1: ...PC720M DIGITAL MULTIMETER INSTRUCTION MANUAL ...

Page 2: ...5 Range Hold 4 6 Data Hold 4 7 Beeper Control 4 8 PC Personal Computer Interface 4 9 Data Logging Recording 4 10 Test Leads Improper Connection Warning 4 11 Crest capture mode Sampling time 1ms 4 12 MAX MIN Recording Mode 4 13 Relative Measurement 4 14 Back Light 4 15 Terms 5 Measuring procedure 5 1 Pre operational Check 5 2 Automatic measurement for Ω V under Low Impedance 5 3 AC Voltage Frequenc...

Page 3: ...Current AC Current DC AC Current AC Current Frequency Hz Measurement 5 11 Measurements with Separately Available Accessories 6 MAINTENANCE 6 1 Simple Examination 6 2 Calibration 6 3 Battery and Fuse Replacement 6 4 Storage 7 AFTER SALE SERVICE 7 1 Warranty and Provision 7 2 Repair 7 3 SANWA web site 8 SPECIFICATIONS 8 1 General Specifications 8 2 Measuring Range and Accuracy 34 38 40 43 47 51 57 6...

Page 4: ... WARNING and must be followed to prevent accidental burn andelectric shock 1 1 Explanation of Warning Symbols The meanings of the symbols used in this manual and attached to the product are as follows Extremely important instructions for safe use WARNING identifies conditions and actions that could result in accidental burn and electric shock CAUTION identifies conditions and actions that could ca...

Page 5: ...tery lid removed 7 Remove test leads from the meter before opening the meter case for replacing the battery or fuse 8 Never attempt to repair or modify the instrument except for battery and fuse replacement 9 Do not use any unspecified type of test leads 10 Keep your fingers behind the finger guards of the test leads while measurement 11 Connect the common test lead Black before you connect the li...

Page 6: ...peak 10V dc ac 600Vrms Do not apply any voltage or current T1 and 50mV dc T2 and 0 63A 500V Fuse Breaking capacity 50kA and 12 5A 500V Fuse Breaking capacity 20kA mAμA and 600mA dc ac Do not apply any voltage 0 63A 500V Fuse Breaking capacity 50kA and 10A dc ac Do not apply any voltage 12 5A 500V Fuse Breaking capacity 20kA ...

Page 7: ...ponents and DC components of Voltage or Current True RMS detection for alternate current AC True RMS DC AC indications available AutoΩ V function recognizes automatically DCV ACV or Ω Maximum DC AC voltage measurement resolution 0 01 mV Frequency Sensitivity selectable Wide capacitance range 0 01nF to 25 00mF Automatically range selectable Crest Capture Mode Sampling time Approx 1ms MAX MIN record...

Page 8: ...ring terminal for mAµA Common terminal measuring terminal Data hold button Light shielding magnet cap Optical communication unit connector Stand Battery door Holster Finger guards Plugs Test probe red Test probe black Test leads TL 23a 3 Detachable test pin covers Test pins 5 3 Parts Identification 3 1Multimeter and Test Leads With the detachable test pin covers CAT III 600V Without the detachable...

Page 9: ... wall 6 How to detach the light shielding magnet cap Turn the light shielding magnet cap counterclockwise to detach An application of the light shielding magnet cap Note Keep the light shielding magnet cap away from cellular phones analog watches floppy disks magnetic cards magnetic tapes and magnetic tickets Otherwise the memorized information may be lost ...

Page 10: ...ator Crest capture mode indicator Max Min updating indicator DC measurement indicator AC measurement indicator Temperature measurement indicator Polar character Low impedance measurement indicator Continuity check indicator Low battery voltage indicator Unit of readings for main display Unit of readings for sub display 7 3 2 Display ...

Page 11: ... mode turns the meter off automatically after approximately 30 minutes of no activities While the Auto Power Saving mode following activities set the Auto Power Saving back 1 Function selector or push button operations 2 Significant measuring readings of above 512 counts or non OL readings Following activities disable the Auto Power Saving mode automatically 1 Crest capture mode or MAX MIN recordi...

Page 12: ...vent unexpected battery wearing down mount the attached light shielding magnet cap on the optical comminucation unit connector when not in use Always turn the power switch to the OFF position when the meter is not in use for a long time 4 3 Low Battery Indication Decreasing the internal battery voltage to approx 7V due to wearing down turns on the indicator on the LCD display Replace the battery w...

Page 13: ...s off In the manual ranging mode press the button again to step through the ranges Select an appropriate range making sure units and decimal point positions To resume auto ranging mode press and hold the button for 1 second or more Note Manual ranging mode is not available in the Hz functions 4 6 Data Hold Press HOLD button to freeze present reading for later view indicator turns on Input fluctuat...

Page 14: ...t equips with an optical isolated interface port at the meter back for data communication KB USB7 dedicated USB optical communication unit separately available and PCLink7 dedicated software allow you to transfer real time readings and internally logged data to your PC For more information see the HELP for PCLink7 PC linkage software USB Optical Communication Unit KB USB7 Optical Communication Uni...

Page 15: ...Data Hold function 4 9 1 Set logging interval Select a function you need then press button for 1 sec or more The sampling speed interval will be displayed in second The t0 05 factory default means the sampling interval is 0 05 second 20 times Sec Press or to select one from followings Shortest 0 05s 0 1s 0 5s 1s 2s 3s 4s 5s 10s 15s 30s 60s 120s 180s 300s 600s Longest Each of the following function...

Page 16: ... More than 1 second More than 1 second 13 ...

Page 17: ...cate the memory points left for new logging session s Sub main displays for most significant least significant numbers separately Below example illustrates 43 102 memory points are available for new logging session s Then press the button to start a new logging session directly without erasing the formerly logged one s Or you can press the button to erase ALL of the formerly logged session page s ...

Page 18: ... s i n g New logging starts a f t e r e r a s i n g OR 0 5s 0 5s 15 Press SELECT button to toggle the LCD display between measuring data and logged data item number Sub main displays for most significant least significant numbers separately ...

Page 19: ... Press PAUS CONT STOP button for 1 sec or more to stop logging When a sampling speed of 30s or longer is selected the meter will enter a 50 power down mode between data logging measurements displaying only the swinging pointer Press the SELECT button to resume the real time display approx 4 2 minutes after data logging has started ...

Page 20: ...e for fast scrolling The beeper sounds when the first or last data is reached Press the SELECT button to toggle the LCD display between logged data and its item number Press the RANGE HOLD button to make sure the set reading time interval Press the and buttons simultaneously again to select another session page in sequence Press them and hold for 1 sec or more for fast scrolling and the beeper sou...

Page 21: ...0 5s 18 ...

Page 22: ... against possible damage to the meter due to test leads improper connections to the or measuring jacks when other function like voltage function is selected Temperature measurement function is an exception Note InEr warning may be indicated due to weak battery even if the test leads are connected properly ...

Page 23: ...er beeps when new MAX maximum or MIN minimum reading is updated Press the button to read the MAX MIN and MAX MIN peak to peak readings in sequence Press the button for 1 sec or more to exit the MAX MIN recording mode Auto ranging remains and Auto Power Saving is disabled automatically in this mode 4 13 Relative Measurement Press the REL button to activate the relative measurement mode and indicato...

Page 24: ...storted waveforms with the presence of harmonics This instrument employs the True RMS Root Mean Square detection Crest Factor Crest Factor is the ratio of the Crest instantaneous peak value divided by the True RMS value Most common waveforms such as sinusoidal wave and chopping wave have a relatively low crest factor A low duty cycle wave form like pulse string has a high crest factor For voltages...

Page 25: ...at can cause inaccurate DC measurements NMRR is typically specified in terms of dB decibel This instrument has a NMRR specification of 60dB at 50 and 60Hz which means a good ability to reject the effect of AC noise in DC measurements CMRR Common Mode Rejection Ratio Common mode voltage is voltage which is present on both the COM and VOLTAGE measuring terminals of a DMM with respect to the ground C...

Page 26: ...nt if the meter or test leads look damaged 2 Make sure the test leads and the fuse are not broken WARNING Make sure the low battery indicator is off after power on Replace the battery with new one if the indicator is on CAUTION Perform pre oparational check for safety Inspection using continuity check ...

Page 27: ... the black one to the COM terminal Set the function selector to Press the SELECT button to select the continuity check Short circuit between the red and black test pins Ω turns on Beeper sounds Finished Does not turn on Does not sound Turns on Sounds Looks OK Damaged In the case nothing is displayed check for the battery ...

Page 28: ...s present the meter displays the resistance value When below the continuity threshold 20Ω to 300Ω is present the meter further gives a continuity beep tone Auto Ω V mode input impedance increases abruptly from initial 3kΩ to a few hundred kΩ s on high voltage hard signals LoZ displays on the LCD to remind the users of being in such low impedance mode Peak initial load current while probing 1000V a...

Page 29: ... 999 9Vdc LoZ 3Vac to 999 9Vac 50 60Hz LoZΩ 0 0Ω to 60 00MΩ 2 Measuring procedure Connect the red plug of the test lead to the AutoΩ V measuring terminal and the black one to the COM terminal Set the function selector to Apply the test pins Red and Black to the object to measure Read the display ...

Page 30: ...he ranges or functions Voltage Hazardous Alert When making resistance measurements in AutoΩV mode an unexpected display of voltage readings alerts you that the object under test is being energized Ghost voltage Buster Ghost voltages are unwanted stray signals coupled from adjacent hard signals Our AutoΩV mode provides low ramp up input impedance approx 3kΩ at low voltage to drain ghost voltages le...

Page 31: ... the black one to the COM terminal Set the function selector to Press the SELECT button to select a display style Apply the test pins Red and Black to the object to measure Read the display 1 Do not apply any input signal exceeding the max rated input voltage 2 Do not switch the function selector while measuring 3 Keep your fingers behind the finger guards of the test leads while measurement WARNI...

Page 32: ...range has the lowest sensitivity Auto ranging measurements normally set the most appropriate trigger level You can also press the RANGE HOLD button to select another trigger level voltage range manually If the Hz reading becomes unstable select higher voltage range to avoid electrical noise If the reading shows zero select lower voltage range ...

Page 33: ...nt Hz Input sensitivity Sine wave Frequency range 9 999V 2 5V 15 00Hz to 10 00kHz 99 99V 25V 999 9V 100V The display style of Hz does not show the bar graph As a normal condition non connected test leads may cause unstable readings ...

Page 34: ... ranges 9 999V 99 99V 999 9V 3 Measuring procedure Connect the red plug of the test lead to the V measuring terminal and the black one to the COM terminal Set the function selector to Press the SELECT button to select a function you want to perform Apply the test pins Red and Black to the object to measure Read the display 1 Do not apply any input signal exceeding the max rated input voltage 2 Do ...

Page 35: ... 32 ...

Page 36: ... 33 Note The display style of or does not show the bar graph ...

Page 37: ...on selector while measuring 3 Keep your fingers behind the finger guards of the test leads while measurement WARNING 1 What to measure m DC voltage DC circuit voltage lower than 600mV m m DC voltage component AC voltage component m m DC AC superimposed signal voltage AC voltage component Logic level frequency 3V 5V logic circuit frequency D Duty cycle Logic level signal duty cycle Square wave 2 Me...

Page 38: ...of the test lead to the VHz measuring terminal and the black one to the COM terminal Set the function selector to Press the SELECT button to select a function you want to perform Apply the test pins Red and Black to the object to measure Read the display ...

Page 39: ...m m 36 ...

Page 40: ...D 37 Note The display style of m m m m or D does not show the bar graph ...

Page 41: ...t WARNING 1 What to measure m AC voltage AC voltage lower than 600mV Hz Frequency Frequency on a AC circuit lower than 600mV 2 Measuring ranges m 60 00mV and 600 0mV Hz 15 00Hz to 10 00kHz Auto ranging 3 Measuring procedure Connect the red plug of the test lead to the VHz measuring terminal and the black one to the COM terminal Set the function selector to Press the SELECT button to select a funct...

Page 42: ... Hz m does not show the bar graph As a normal condition non connected test leads may cause unstable readings Note Range Frequency measurement Hz Input sensitivity Sine wave Frequency range 60 00mV 40mV 15 00Hz to 50 00kHz 600 0mV 60mV ...

Page 43: ...ts Note Conductance is the inverse of Resistance that is S 1 Ω or nS 1 GΩ 2 Measuring ranges Ω 6 ranges 600 0Ω 6 000kΩ 60 00kΩ 600 0kΩ 6 000MΩ and 60 00MΩ Beeper threshold level between 20Ω and 300Ω Response time 100μs nS 99 99nS Single range Open circuit voltage between the measuring terminals 1 2V dc 1 0V dc for 60 00MΩ range Do not apply any voltage or current to the measuring terminals In the ...

Page 44: ...suring terminal and the black one to the COM terminal Set the function selector to Press the SELECT button to select a function you want to perform Apply the test pins Red and Black to the object to measure Read the display A continuous beep tone indicates a complete wire ...

Page 45: ...ion does not show the bar graph To avoid external noise influence shield the object to measure with COM potential Measurements with finger touched test pins may cause some errors being influenced by human body conductance ...

Page 46: ...ARNING 1 What to measure o F Temperature Temperature of liquid solids gas and etc 2 Measuring ranges Celsius 50 to 1 000 Fahrenheit 58 o F to 1832 o F 3 Measuring procedure Connect the provided K type thermocouple s to the T1 and or T2 measuring terminals Set the function selector to Temp Press the SELECT button to select or o F Press the T1 T2 RENGE HOLD button to select T1 T2 T1 T2 or T1 T2 T2 A...

Page 47: ...T1 T1 44 ...

Page 48: ...T2 T1 T2 45 ...

Page 49: ...e bar graph The provided K type thermocouple K 250PC is a polar device Connect the device to the meter properly The range of K 250PC is 50 to 250 Separately available K type adapter K AD allows you to use other international standard mini plug thermocouples ...

Page 50: ... Capacitance of capacitors 2 Measuring ranges 7 ranges 60 00nF 600 0nF 6 000μF 60 00μF 600 0μF 6 000mF and 25 00mF 3 Measuring procedure Connect the red plug of the test lead to measuring terminal and the black one to the COM terminal Set the function selector to then press the SELECT button to select the capacitance measurement Unit F will be indicated Apply the test pins Red and Black to the obj...

Page 51: ...Note Capacitance function does not show the bar graph 48 ...

Page 52: ...e diode and the red one to the anode The display will show the forward voltage drop forward biased Forward biased voltage drop for a good silicon diode is between 0 400V to 0 900V A reading higher than that indicates a defective diode A zero or close to reading indicates a defective diode shorted An OL indicates a defective diode open Apply the red test pin to the cathode of the diode and the blac...

Page 53: ...Note Open circuit voltage between the measuring terminals 3 5V dc Test current 0 4mA typical Diode test function does not show the bar graph Forward biased test Reverse biased test 50 ...

Page 54: ...eous measurement DC AC current m μ AC current m μ simultaneous measurement 1 Do not apply any voltage to the measuring terminals 2 Be sure to connect the meter in series with the load object 3 Do not apply any input exceeding the max rated current 4 First turn off the circuit to measure then cut the part Connect the test leads of the meter properly in series with the circuit WARNING ...

Page 55: ...ng procedure Connect the red plug of the test lead to measuring terminal and the black one to the COM terminal Set the function selector to or then press the SELECT button to select m m m m m m Hz for mA range or select μ μ μ μ μ μ Hz for μA range Connect the test pins red and black in series with the circuit to measure m μ Connect the black test pin to the lower electric potential side of the cir...

Page 56: ...e black one to the COM terminal Set the function selector to and press the SELECT button to select a display style from and Hz Connect the test pins red and black in series with the circuit to measure Connect the black test pin to the lower electric potential side of the circuit to measure and the red test pin to the higher electric potential side in series with the object Connect the test pins re...

Page 57: ...μ μ μ 54 ...

Page 58: ...μ μ μ Hz 55 ...

Page 59: ...m Hz Hz 56 Note 6A Cool down more than 3 minutes after measuring 1 minute 6A Continuable Measuring range Frequency Hz Input sensitivity Sine wave Frequency range 6 000A 4A 15 00Hz 3 000kHz 10 00A 6A ...

Page 60: ...urrent of power supply equipments and etc 2 Measuring ranges 20A and 200A 3 Measuring procedure 1 Do not apply any input exceeding max rated input for the separately available accessories 2 2 Do not switch the function selector while measuring To make measurements of consumption current for home appliances using a current probe use a line separator as shown in the drawing below CAUTION WARNING ...

Page 61: ...easured Do not measure such high current even though the display works Try to put the wire to measure in the center of the clamp jaws as possible 5 11 2 Clamp probe CL 22AD Max measurable current 200A dc ac 1 What to measure ACA 50 60 Hz sine wave current such as consumption current of home appliances current of power supply equipments and etc DCA Current of automotive electric circuits consumptio...

Page 62: ...20A range and read the display directly for 200A range Note Current exceeding 20A or 200A cannot be measured Do not measure such high current even though the display works Try to put the wire to measure in the center of the clamp jaws as possible 5 11 3 DC Clamp probe CL 33D Max measurable current 300A dc 1 What to measure Current of automotive electric circuits consumption current of DC equipment...

Page 63: ...e reading zero Open the clamp jaws of the clamp probe and clamp the wire to measure Multiply the reading by 0 1 for 30A range and read the display directly for 300A range Note Current exceeding 30A or 300A cannot be measured Do not measure such high current even though the display works Try to put the wire to measure in the center of the clamp jaws as possible ...

Page 64: ...anizing internal parameters Do not turn off the meter and it will be back to normal measurement shortly However if self diagnostic message C_Er is being displayed while powering on some meter ranges might be largely out of specifications To avoid misleading measurements stop using the meter and send it for re calibration Refer to the AFTER SALE SERVICE section for obtaining warranty or repairing s...

Page 65: ...holder WARNING Pre installed battery Since the pre installed battery is for monitoring it may not be durable as typically expected The purpose of the battery for monitoring is to check for the functions and performances of the product Replacement procedure Remove the holster and loosen the Philips head screw fixing the battery door using appropriate screw driver Remove the battery door and replace...

Page 66: ...yl alcohol Clean the instrument up with a dry soft cloth 2 The panel and case are not resistant to heat Keep it away from heat generating devices such as solder irons 3 Do not save the instrument into vibratory places or where the instrument may fall off 4 Do not expose the instrument to direct sunlight and do not save it into any places with extreme temperature humid or condensation 5 Remove the ...

Page 67: ...or any product or parts which have been subject to one of the following causes 1 A failure due to improper handling or use that deviates from the instruction manual 2 A failure due to inadequate repair or modification by people other than Sanwa service personnel 3 A failure due to causes not attributable to this product such as fire flood and other natural disaster 4 Non operation due to a dischar...

Page 68: ...ct Sanwa authorized agent service provider in advance The minimum retention period of service functional parts is 6 years after the discontinuation of manufacture This retention period is the repair warranty period Please note however if such functional parts become unavailable for reasons of discontinuation of manufacture etc the retention period may become shorter accordingly 4 Precautions when ...

Page 69: ...tage to approx 7V turns the battery mark on Operating conditions Altitude 2 000m Pollution degree II Operating temperature humidity 5 to 40 non condensing 5 to 31 80 RH Max 31 to 40 decreasing 80 to 50 linearly Storage temperature humidity 10 to 40 80 RH Max non condensing with battery removed 40 to 50 70 RH Max non condensing Remove the battery if the equipment is not going to be used for a long ...

Page 70: ...egory III for 600V ac and dc Category II for 500V ac and dc Category III for 300V ac and dc Category II for 500Vac and 300Vdc Category III for 300Vac and 150Vdc EMC Meets EN61326 1 2006 In an RF field of 3V m Capacitance function is not specified Other function ranges Total Accuracy Specified Accuracy 100digits Performance above 3V m is not specified Dimensions withoutholster Approx L175mm W80mm H...

Page 71: ...age DCV DC Voltage AC Voltage for dual display Range Accuracy 60 00mV 600 0mV 9 999V 99 99V 999 9V 0 7 rdg 6dgt NMRR 60dB 50 60Hz CMRR 110dB DC 50 60Hz unbalanced resistance 1kΩ Input impedance 10MΩ 80pF nominal 130pF nominal for 600 0mV 60 00mV range For AutoΩ V function Range Accuracy 9 999V 99 99V 999 9V 0 5 rdg 3dgt Lo Z DCV threshold level 1 0VDC or 1 5VDC nominal Lo Z DCV input impedance Ini...

Page 72: ...V 1 0 rdg 4dgt 999 9V 2 0 rdg 4dgt 1kHz 3kHz 60 00mV 600 0mV 2 0 rdg 3dgt 9 999V 99 99V 999 9V 3 0 rdg 4dgt 3kHz 20kHz 60 00mV 600 0mV 2 0 rdg 3dgt 9 999V 99 99V 3dB 999 9V Unspecified CMRR 60dB DC to 60Hz unbalanced resistance 1kΩ Input impedance 10MΩ 80pF nominal 130pF nominal for 600 0mV 60 00mV range Residual reading Less than 5 digits with test leads shorted Specified from 30 to 100 of the ra...

Page 73: ...Input impedance 10MΩ 80pF nominal 130pF nominal for 600 0mV 60 00mV range 1 Specified from 30 to 100 of the range 2 3kHz 15kHz For AutoΩ V function Range Accuracy 50Hz to 60Hz 9 999V 99 99V 999 9V 1 0 rdg 4dgt Lo Z ACV threshold level 3V ac 50 60Hz nominal Lo Z ACV input impedance Initial Approx 3 0kΩ 270pF nominal If a reading is over 50V typical the input impedance goes up abruptly The following...

Page 74: ...luded AC current ACA and DC AC current DC AC A Range Accuracy Input resistance 50Hz 60Hz 600 0μA 0 6 rdg 3dgt Approx 83Ω 6000μA 60 00mA Approx 1Ω 600 0mA 1 0 rdg 3dgt 6 000A 10 00A 0 8 rdg 6dgt Approx 0 05Ω 40Hz 1kHz 600 0μA 6000μA 0 8 rdg 4dgt Approx 83Ω 60 00mA Approx 1Ω 600 0mA 1 0 rdg 4dgt 6 000A 10 00A 0 8 rdg 6dgt Approx 0 05Ω 6A Cool down more than 3 minutes after measuring 1 minute 6A Cont...

Page 75: ...AutoΩ V function Resistance Range Accuracy 600 0Ω 6 000kΩ 60 00kΩ 600 0kΩ 0 5 rdg 4dgt 6 000MΩ 0 8 rdg 3dgt 60 00MΩ 2 0 rdg 5dgt Open circuit voltage 1 2Vdc 1 0Vdc for 60 00MΩ range Temp o F Range Accuracy 50 1000 0 3 rdg 2dgt 58 o F 1832 o F 0 3 rdg 5dgt Accuracy with K type thermocouple K type thermocouple range and accuracy not included Cool down more than 30 minutes after measuring DCA or ACA ...

Page 76: ...0μA 15 00Hz to 3 000kHz 6000μA 600μA 60 00mA 40mA 600 0mA 60mA 6 000A 4A 10 00A 6A Accuracy 0 04 rdg 4dgt Specified based on sine wave RMS Logic level frequency and Duty cycle D DCmV function Range Accuracy Frequency 5 000Hz to 1 000MHz 0 03 rdg 4 dgt Duty cycle 0 00 to 100 0 3dgt kHz 2 dgt Sensitivity 2 5Vp Square wave for 3V and 5V logic family Specified Frequency 5Hz to 10kHz ...

Page 77: ...mF 6 5 rdg 5dgt Accuracies with film capacitor or better In manual ranging mode measurements not specified below 50 0μF 0 54mF and 5 4mF for 600 0μF 6 000mF and 25 00mF ranges respectively Diode test Range Accuracy Test current Open circuit voltage 2 000V 1 rdg 1dgt Approx 0 4mA 3 5 V Continuity check Threshold level 20Ω to 300Ω Response time 100μs ...

Page 78: ...acy Example DC voltage measurement DC mV True value 100 0 mV Range accuracy 0 06 rdg 2dgt in the 600 0mV range Measuring error 100 0 mV 0 06 rdg 2dgt 0 3 mV Calculation 100 0 mV 0 3 mV Reading 099 7 mV to 100 3 mV 2dgt in the 600 0mV range corresponds to 0 2mV The product specifications and its appearance described in this manual are subject to change without prior notice for improvements or other...

Page 79: ... 76 MEMO ...

Page 80: ...ル 郵便番号 101 0021 電話 東京 03 3253 4871 大阪営業所 大阪市浪速区恵美須西2 7 2 郵便番号 556 0003 電話 大阪 06 6631 7361 SANWA ELECTRIC INSTRUMENT CO LTD Dempa Bldg 4 4 Sotokanda2 Chome Chiyoda Ku Tokyo Japan 02 1012 5008 6010 This manual employs soy ink ...

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