405 mannual (NEW) - Kusam Electrical Industries Ltd.
Contents
1. 21 TUV SAFETY APPROVED TO IEC1010 POWER CE GS DATA HOLD AUTO POWER OFF Black Red figure 8 The frequency measurement range is 2kHz 20kHz 200kHz To measure frequency connect the Meter as follows 1 Insert the red test lead into the VQ terminal and the black test lead into the COM Terminal 2 Set the rotary switch in the appropriate frequency range 3 Connect the test leads across which the frequency is to be measured The measured value is shown on the display A Caution e When Hz measurement has been completed disconnect the connection between the testing leads and the circuit under test 22 G Duty Cycle Measurement 1 Set the rotary selector switch to the Hz range desired for a measurement 2 Insert the BLACK and RED test leads into the COM and VQ input terminals respectively 3 Apply the test leads to the points across which the frequency is to be measured and read the result directly from the display 4 To make duty cycle test during frequency measurements place the range selector switch into the DUTY position The display will indicate 0 of the frequency duty cycle A Caution The frequency ranges have overload protection to 500 VAC VDC Do not exceed this limit To do socould damage your multimeter H Logic Testing 1 Insert the BLAC2. Input Impedance 10M Overload Protection 500V DC or 350Vrms on 200mV range 1000V DC or 750Vrms on all other range AC VOLTAGE 500Hz to 2KHz TRUE RMS Range Input Impedance 10MQ Overload Protection 500V DC or 350Vrms on 200mV range 1000V DC or 750Vrms on all other range O AC CURRENT TRUE RMS Range Resolution Accurac Burden Voltage 300mV for 200uA 2mA 20mA 600mV for 200mA amp 800mV for 20A Overload Protection 500mA 600V fuse on mA inputs fast blow ceramic fuse 20A 600V fuse on 20A inputs fast blow ceramic fuse 20A for 30 seconds maximum DC CURRENT Burden Voltage 300MV for 200uA 2mA 20mA 600mV for 200mA amp 800mV for 20A Overload Protection 500mA 600V fuse on mA inputs fast blow ceramic fuse 20A 600V fuse on 20A inputs fast blow ceramic fuse 20A for 30 seconds maximum RESISTANCE 0 25 rdg 10 dgts 0 15 rdg 3 dgts 200KQ 110 Q 0 25 rdg 10 dgts 1 0 rdg 10 dgts Overload Protection 500V DC or AC rms Burden Voltage 3 3V DC 6 FREQUENCY Range Resolution Accuracy input imped 0 5 rdg 3dgts 10MQ 10pF Sensitivity 50mV rms Sine Wave 400mV rms at gt 30 and lt 70 duty cycle Input Frequency More than 10 Hz at pulse width gt 2u sec Overload Protection 500V DC or AC rms DUTY CYCLE Range Resol Pulse Width Accuracy 2 0 rdg 1 0dgts Overload Protection 500V DC or AC rms Frequency Range
3. A Warning To avoid electric shock or personal injury read the Safety Information and Rules for Safe Operation carefully before using the Meter Digital Multimeter Model 405 hereafter referred to as the Meter is a 4 digits TRMS Multimeter with steady operations and highly reliable hand held measuring instrument having different measurement positions The Multimeter not only can measure AC DC Voltage AC DC Current Resistance Frequency Diode Test Logic Test but also has Data Hold Full Icon Display Terms in this manual A Warning Identifies conditions and actions that could result in serious injury or even death to the user A Caution Identifies conditions and actions that could cause damage or malfunction instrument Unpacking Inspection Open the package case and take out the Multimeter Check the following items carefully to see any missing or damaged part item Description ay lt English Operating Manual 1 piece 2 Test Lead i In the event you find any Part missing or damaged please contact your dealer immediately FEATURES Low power consumption CMOS double integration A D transform integrated circuit Auto Zero Calibration Auto Polarity display Data Hold Low Battery amp Over range indication Display 4 digit 19999 Counts with digit height 17mm and function units sign annunciators Selected Range displayed on LCD High Accuracy Digital Reading Instant
4. The measured value is shown on the display 24 A Caution In a circuit a good diode will produce a forward voltage drop reading of 0 5V to 0 8V However the reverse voltage drop reading can Vary depending on the resistance of other path ways between the probe tips Connect the test leads to the proper terminals as said above to avoid error display The LCD will display 1 indicating open circuit for wrong connection The unit of diode is Volt V displaying the positive connection voltage drop Value When diode testing has been completed disconnect the connection between the testing leads and the circuit under test Testing for Continuity To test for continuity connect the Meter as below Insert the red test lead into VQ terminal and the black test lead into the COM terminal Set the rotary switch to gt position Connect the test leads across with the object being measured The buzzer sounds if the resistance of a circuit under test is less than 150Q The LCD displays the resistance value of a circuit under test ZA caution The LCD displays 1 indicating the circuit being tested is open e When continuity testing has been completed disconnect the connection between the testing leads and the circuit under test 25 Maintenance Warning To avoid false reading replace the battery as soon as the battery indicator appears To replace battery fuse Disconnect
5. 20 Hz to 20 KHz LOGIC TEST Pulse Pulse Rep Pulse Rise Logic Hi Logic Low Width min max max Test Voltage 5V DC Duty Cycle gt 20 and lt 80 Indication 40msec beep at logic Hi Overload Protection 500V DC or AC rms Frequency Response 20MHz CONTINUITY TEST Range Audible Response Open Circuit Indication Time Volts Less than 1500 Approx 500ms 3 3V DC Typical Overload Protection 500V DC or AC rms IODE TEST a 0 5 rdg 1dat 3 3V DC Typical Overload Protection 500V DC or AC rms Rules For Safe Operation 1 WMA Warning To avoid possible electric shock or personal injury and to avoid possible damage to the Meter or to the equipment under test adhere to the following rules e Before using the Meter inspect the case Do not use the Meter if it is damaged or the case or part of the case is removed Look for cracks or missing plastic Pay attention to the insulation around the connectors Inspect the test leads for damaged insulation or exposed metal Check the test leads for Continuity Replace damaged test leads with identical electrical Specifications before using the Meter Do not apply more than the rated voltage as marked on the Meter between the terminals or between any terminal and grounding The rotary switch should be placed in the right position and no any changeover of range shall be made while measurement is conducted to prevent damage of the Meter When
6. an appropriate measurement position in Current range Break the current path to be tested Connect the red test lead to the positive side of the path and the black test lead to the negative side of the path Turn on power to the circuit The measured value is shown on the display a Caution If the value of current to be measured is unknown use the maximum measurement position 20A and 20A terminal and reduce the range step by step until a satisfactory reading is obtained When current measurement has been Completed switch off power in the circuit and then disconnect the connection between the testing leads and the circuit under test D ER Caiu 405 MULTIMET yy figure 6 A Warning Never attempt an in circuit current measurement where the open circuit voltage between terminals and ground is greater than 60V DC or 30V rms If the fuse burns out during measurement the Meter may be damaged or the operator himself may be hurt Use proper terminals function and range for the measurement When the testing leads are connected to the current terminals do not parallel them across any circuit The DC current measurement has 5 measurement positions on the rotary switch 200uA 2mA 20mA 200mA 20A To measure DC Current connect the meter as follows 18 1 Turn off power to the circuit Discharge all High Voltage capacitors 2
7. of voltage Q Ohm The unit of resistance KQ kilohm 1 x 10 ohms MQ Mega Ohm 1 x 10 ohms Measurement Operation e Make sure the Low Battery display is not on otherwise false readings may be provided e Pay extra attention to the A symbol which is located besides the input terminals of the Meter before carrying out measurement A DC voltage measurement see figure 3 LOGIC gt e 20A HA mA COM car VOHZ y E 405 MULTIMETER 2 Figure 3 A Warning To avoid harms to you or damages to the Meter from electric shock please do not attempt to measure voltages higher than 1000V or 750V rms although readings may be obtained 43 The DC Voltage ranges are 200mV 2V 20V 200V 1000V To measure DC voltage connect the Meter as follows 1 Insertthe red test lead into the VA input terminal and the black test lead into the COM input terminal 2 Set the rotary switch to an appropriate measurement position inV range 3 Connect the test leads across with the object being measured The measured value is shown on the display A Caution e l the value of voltage to be measured is unknown use the maximum measurement position 1000V and reduce the range step by step until a satisfactory reading is obtained The LCD displays 1 indicating the existing selected range is overloaded it is r
8. the connection between the testing leads and the circuit under test and remove the testing leads away from the input terminals of the Meter Turn the Meter OFF Remove the screws from the bottom case and separate the bottom case from the top case Remove the battery fuse from the battery fuse compartment Replace the battery fuse with a new Standard 9V Battery same specification fuse Rejoin the bottom case and the top case and install the screw A 4 MUMBAI TEST CERTIFICATE DIGITAL MULTIMETER This Test Certificate warrantees that the product has been inspected and tested in accordance with the published specifications The instrument has been calibrated by using equipment which has already been calibrated to standards traceable to national standards MODEL NO 405 SERIAL NO aN ISO 9001 REGISTERED pass 27 WARRANTY Each KUSAM MECO product is warranted to be free from defects in material and workmanship under normal use amp service The warranty period is one year 12 months and begins from the date of despatch of goods In case any defect occurs in functioning of the instrument under proper use within the warranty period the same will be rectified by us free of charges provided the to and fro freight charges are borne by you This warranty extends only to the original buyer or end user customer of a KUSAM MECOC authorized dealer This warranty does not apply for damage
9. Continuity Buzzer Overload Protection in all Ranges Recessed Safety Designed Input Jacks DATA HOLD switch freezes reading CE Approved GS approved IEC61010 overload category II GENERAL SPECIFICATIONS Display Digit Size Polarity Overrange indication Low Battery Indication Auto Power Off Measurement rate Operating environment Storage temperature Power Power Consumption Dimension Weight Accessories 4 digit LCD Maximum reading 19999 with Function and unit sign annunciators 17mm H Automatic negative polarity indication T most significant digit The sign is displayed when the battery voltage drops below the operating Voltage Meter automatically shuts down after approx 45 minutes of inactivity 2 5 times per Second nominal 0 C to 50 C lt 70 R H 20 C to 60 C 0 to 80 RH with battery removed Single 9 V Battery 14mW Typical 189mm H X 87mm W X 37mm D Approx 330 grams including battery Test Leads Carrying Case User Manual Battery Tilt stand Protective Holster ELECTRICAL SPECIFICATION DC VOLTAGE 200 mV 2 v 100 w 2 V 20 V 0 05 rdg 3dgts 200 V 1000 V 100 mV Input Impedance 10MQ Overload Protection 500V DC 350Vrms on 200mV range 1000V DC 750V rms on all other ranges AC VOLTAGE 50Hz 500Hz TRUE RMS 1 0 rdg 10 dats
10. Insert the red test lead into the mA or 20A terminal and the black test lead into the COM terminal 3 Set the rotary switch to an appropriate measurement position in Current range 4 Break the current path to be tested Connect the red test lead to the positive side of the path and the black test lead to the negative side of the path 5 Turn on power to the circuit The measured value is shown on the display ZA Caution e f the value of current to be measured is unknown use the maximum measurement position 20A and 20A terminal and reduce the range step by step until a satisfactory reading is obtained When current measurement has been completed switch off power in the circuit and then disconnect the connection between the testing leads and the circuit under test E Resistance Measurement see figure 7 A Warning To avoid damages to the Meter or to the devices under test disconnect circuit power and discharge all the high voltage capacitors before measuring resistance 419 RUSAMTEMECE 405 MULTIMETER S 2 figure 7 The resistance range has 6 measurement positions on the rotary switch 20042 2KQ 20KQ 200KQ 2MQ 20M To measure resistance connect the meter as follows 1 Insertthe red test lead into the VA terminal and the black test lead into the COM terminal 2 Set the rotary switch to an
11. K and RED test leads into the COM and VQ input terminals respectively Select the logic function by rotating the selector dial to the logic position Connect the BLACK probe tip to the Common Bus of the logic circuitry to be measured Connect the RED probe tip to the point to be tested With a logic high pulse 1 the indicator 4 will display in the L CD and a beeping sound will emit With a logic low pulse O the indicator Y will appear in the LCD 23 I Measuring Diodes amp Continuity ZN Warning To avoid damage to the Meter or to the equipment under test disconnect circuit power and discharge all high voltage capacitors before measuring diodes and continuity Testing Diodes Use the diode test function to check diodes The diode test sends a current through the Semiconductor junction and then measures the voltage drop across the junction A good silicon junction drops between 0 5V and 0 8V To test a diode out of a circuit connect the Meter as follows a E LOGIC Insert the red test lead into the VQ terminal and the black test lead into the COM terminal Set the rotary switch to gt position For forward voltage drop reading on any Semiconductor component place the red test lead on the component s anode and place the black test lead on the component s cathode
12. KUSAM MECO G 17 Bharat Industrial Estate T J Road Sewree W Mumbai 400015 INDIA Sales Direct 24156638 Tel 91 22 2412 4540 2418 1649 Fax 91 22 2414 9659 Email kusam_meco vsnl net Website www kusamelectrical com www kusam meco co in DIGITAL MULTIMETER 10000 gt 20A pA mA COM car VO Hz Oa On A0 ss od FUSED 750 405 MULTIMETER TAKE MEASUREMENT CAREFULLY AND YOU LL SPARE YOUR METER AND YOURSELF SOME PAIN Nearly every electrical engineer has a hand held digital multimeter DMM We sometimes take them for granted until we damage them or burn them out if you incorrectly connect your DMM to a circuit or if you have the DMM on wrong setting you damage the meter and possibly hurt yourself You can also get into trouble if you try to measure the voltage across a charged capacitor DMM users frequently burn their meters by trying to measure current the same way as they measure voltage Remember you measure voltage across a circuit and current through a circuit When you use the current input your DMM becomes a lower impedance circuit element If you accidentally connect this low impedance path across your circuit you ll effectively short circuit it You can therefore send high current through your meter and severely damage it Unless the meter has a fused input you can even get an explosion or fire Even if you correctly insert your DMM into the circuit yo
13. LTIMETER Figure 1 LCD DISPLAY A 4 digit display maximum reading 19999 indicates measured values and features symbols indicating function Low Battery Continuity Diode Logic FUNCTION SELECTOR To Select ACV DCV ACA DCA Resistance Frequency Diode Continuity 8 Logic Test INPUT JACKS VQ mA A and COM Test leads are inserted into these jacks for Voltage Resistance Current measurements Continuity amp Diode Checks PROTECTIVE HOLSTER Prevents the instrument from damage D Functional Buttons Below table indicates the functional button operations Buttons Operation Performed POWER Switch the Meter on and off Black Button Press the POWER button to switch on the Meter e Press the POWER button to turn off the Meter DATA HOLD e Press HOLD Button to hold the Black Button reading on the display e Press HOLD button again to exit hold mode Display Symbols see figure 2 2an E afoot ot A Vey 0 V 0 EN Figure 2 1 Dangerous Voltages The battery is low Warning To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator appears displayed value is the mean value a trsiates negative reading Ps sorae O 6 Gi Data Hold is active e a A Amperes amps The unit of curent V Volts The unit
14. appropriate measurement position in 2 range 3 Connect the test leads across with the resistance being measured The measured value is shown on the display Note e The test leads can add 0 1 to 0 30 of error to the Resistance measurement To obtain precision readings in low resistance that is the range of 2004 short circuit the input terminals beforehand and record the reading obtained call this reading as X X is the additional resistance from the test lead 20 Then use the equation Measured resistance value Y X precision Reading of resistance e When there is no input for example in open circuit condition the Meter displays 1 e When resistance measurement has been completed disconnect the connection between the testing leads and the circuit under test A Caution Never connect high voltage to the input sockets with the switch in Resistance range Using Resistance measurement function in a Live circuit will produce false results and may damage the instrument In many cases the suspect component must be disconnected from the circuit to obtain an accurate reading F Frequency Measurement see figure 8 A Warning To avoid harm to you or damages to the Meter do not attempt to measure voltages higher than 60V in DC or 30V rms in AC although reading may be obtained When the frequency signal to be tested is higher than 30V rms the Meter cannot guarantee accuracy of the measurement
15. d Ic s fuses burnt PCB s disposable batteries carrying case testleads or to any product which in KUSAM MECO s opinion has been misused altered neglected contaminated or damaged by accident or abnormal conditions of operation or handling KUSAM MECO authorized dealer shall extend this warranty on new and unused products to end user customers only but have no authority to extend a greater or different warranty on behalf of KUSAM MECO KUSAM MECO s warranty obligation is limited at option free of charge repair or replacement of a defective product which is returned to a KUSAM MECO authorized service center within the warranty period 29 THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TOANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE KUSAM MECO SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA ARISING FROM ANY CAUSE WHATSOEVER All transaction are subject to Mumbai Jurisdiction G 17 Bharat Industrial Estate T J Road Sewree W Mumbai 400 015 INDIA Sales Direct 022 24156638 Tel 022 24124540 24181649 Fax 022 24149659 Email kusam_meco vsnl net Website www kusamelectrical com www kusam meco co in 30
16. equired to select a higher range in order to obtain a correct reading In each range the Meter has an input impedance of approx 10MQ This loading effect can cause measurement errors in high impedance circuits If the circuit impedance is less than or equal to 10kQ the error is negligible 0 1 or less When DC voltage measurement has been completed disconnect the connection between the testing leads and the circuit under test B AC Voltage Measurement see figure 4 TUV SAFETY APPROVED TO IEC1010 POWER A Warning figure 4 To avoid harm to you or damages to the Meter from electric shock please do not attempt to measure voltages higher than 1000V or 750V rms although readings may be obtained The AC Voltage measurement has 5 measurement positions on the rotary switch 200mV 2V 20V 200V and 750V To measure AC Voltage connect the Meter as follows 1 Insert the red test lead into the VQ terminal and the black test lead into the COM terminal 2 Set the rotary switch to an appropriate measurement position in V range 3 Connect the test leads across with the object being measured The measured value is shown on the display 45 Pell If the value of voltage to be measured is unknown use the maximum measurement position 750V and reduce the range step by step until a satisfactory reading is obtained T
17. he LCD displays 1 indicating the existing selected range is overloaded it is required to select a higher range in order to obtain a correct Reading When AC Voltage measurement has been completed disconnect the connection between the testing leads and the circuit under test C AC Current Measurement see figure 5 TUV SAFETY APPROVED TO IEC1010 POWER m LE on gt t gt 20A HA mA COM car VQHZ C20a6 AO Black Red fi 5 A Warning id Never attempt an in circuit current measurement where the open circuit voltage between terminals and O D DC Current Measurement see figure 6 N ground is greater than 60V DC or 30V rms If the fuse burns out during measurement the Meter may be damaged or the operator himself may be hurt Use proper terminals function and range for the measurement When the testing leads are connected to the current terminals do not parallel them across any circuit LOGIC The AC Current measurement has 5 measurement positions on the rotary switch 200uA 2mA 20mA 200mA 20A To measure AC Current connect the meter as follows 1 2 3 4 5 Turn off power to the circuit Discharge all High Voltage capacitors Insert the red test lead into the mA or 20A terminal and the black test lead into the COM terminal Set the rotary switch to
18. measurement is taken at an effective voltage over 60V in DC or 30V rms in AC special care should be taken for there is danger of electric shock Use the proper terminals function and range for your measurements Do not use or store the Meter in an environment of high temperature humidity explosive inflammable and strong magnetic field The performance of the Meter may deteriorate after the meter is dampened When using the test leads keep your fingers behind the finger guards Rules For Safe Operation 2 Disconnect circuit power and discharge all high voltage capacitors before testing resistance continuity diodes or current Replace the battery as soon as the battery indicator appears With a low battery the Meter might produce false readings that can lead to electric shock and personal injury Turn the Meter power off when it is not in use and take out the battery when not using for a long time Constantly check the battery as it may leak when it has not been used for some time replace the battery as soon as leaking appears A leaking battery will damage the Meter International Electrical Symbols eoram 5 Ea A Al NS Logic test The Multimeter Structure see figure 1 a N e DN 49999 TUV SAFETY APPROVED TO IEC1010 POWER AUTO POWER OFF TRUE RMS ue 405 MU
19. u can still damage your meter Don t try to measure current in excess of your meter s capacity Handheld DMMs usually have a maximum current rating of 10A or 20A If you are measuring current in industrial environment you can easily exceed those ratings The best way to avoid damage is to use a clamp meter orto connect a clamp attachment to your DMM To prevent excess current from flowing through your meter always disconnect the test leads from the circuit under test whenever you change DMM functions Set your meter to the correct function say current and its highest range for the setting say 10A Next connect the test leads before you apply power to the circuit To be safe start by setting your meter to its highest range first Table of Contents Title Overview Unpacking Inspection Features General Specification Electrical Specification DC Voltage AC Voltage AC Current DC Current Resistance Frequency Duty Cycle Logic Test Continuity amp Diode Test Rules For Safe Operation International Electrical Symbols The Multimeter Structure Functional Buttons Display symbols Measurement Operation DC Voltage Measurement AC Voltage Measurement AC Current Measurement DC Current Measurement Measuring Resistance Measuring Frequency Duty Cycle Measurement Logic Testing Diode Test amp Continuity LOMMUOWSY Maintenance A Replacing the Battery amp fuse Test Certificate Warranty Overview
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