KM 2777 pagewise - Kusam Electrical Industries Ltd.
Contents
1. Specified with Relative Zero A mode applied to offset the non zero residual readings if any DC VOLTAGE VFD_ ACV with Low Pass Filter 6 000 V 60 00 V 6 000 V mV 0 5 rdg 5d gts 600 0 V 100 mV 60 00 V 4 rdg 80dgts 1000 V 600 0 V Input Impedance 10MQ 50pF nominal 1000 V AC VOLTAGE 6 000 V 2 rdg 60dgts 50Hz 400Hz 600 0 V 1 V oe al 1 2 rdg 5dgts 200Hz 420Hz Input Impedance 10MQ 50pF nominal 600 0 V Nao au 7 rdg 80dgts AC DC VOLTAGE 1000 V Accuracy Not specified for fundamental frequency gt 400Hz DC 50Hz 400Hz Accuracy linearly decreases from 2 50d 200Hz to 7 80d 400Hz 6 000 V 60 00 V CREST MAX CAPTURE MODE 1 4 rdg 7dgts 600 0 V 100 mV Accuracy 1000 V Specified accuracy plus 250 digits for changes Input Impedance 10MQ 50pF nominal gt 5ms in duration ae NON CONTACT EF DETECTION ea ovieieaneessov 960 ssvtaoaneezov 05 Mov Gotan v e00N Indication Bar graph segments amp audible beep tones proportional to the field strength Detection Frequency 50 60Hz Detection Antenna Top side of the stationary jaw Probe Contact EF Detection For more precise indication of live wires such as distinguishing between live and ground connections use the Red test probe for direct contact measurement CAPACITANCE 2 0 rdg 5dgts 600 0 uF 4 0 rdg 5dgts Accuracies with film capacitor or better2. mode This innovative AutoCheck feature automatically selects measurement function of ACV DCV or Resistance based on the input via test leads With no input the meter displays Auto when it is ready With no voltage signal but a resistance below 10M nominal is present the meter displays the resistance value When the resistance is below the Audible Threshold the meter further gives a continuity beep tone When a signal above the voltage threshold of 1 5V DC or AC up to the rated 1000V is present the meter displays the voltage value in appropriate DCV or ACV whichever larger in peak magnitude 15 Note Range Lock and Function Lock Feature When a measurement reading is being displayed in AutoCheck mode press the RANGE or SELECT button momentarily 1 time can lock the range or function it was in Press the button momentarily repeatedly to step through the ranges or functions As Hazardous Alert When making resistance measurements in AutoCheck 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 which confuse common multimeter voltage measurements Our AutoCheck mode provides low ramp up input impedance approx 2 5kQ at low voltage to drain ghost voltages leaving mainly hard signal values on meter readings It is an invaluab
3. MEASUREMENT CAREFULLY AND YOU LL SPARE YOUR METER AND YOURSELF SOME PAIN Nearly every electrical engineer has a hand held digital clamp meter Tongtester We sometimes take them for granted until we damage them or burn them out If you incorrectly connect your clamp meter to a circuit or if you have the clamp meter 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 Clamp meter 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 clamp meter becomes a low impedance circuit element Even if you correctly insert your clamp meter in to the circuit you can still damage your meter Don t try to measure current in excess of your meter s capacity Check the current capacity of the Clamp meter If you are measuring current in industrial environment to prevent excess current from flowing through your meter always disconnect your test leads from the circuit under test whenever you change Clamp meter functions Set your meter to the correct function say current and its highest range for the setting If the reading is small change the range to the next lower range till the reading can be read with the best possible accuracy When measuring voltage connect the test l
4. Temperature Coefficient 0 25 x specified accuracy C 0 C 18 C or 28 C 40 C AUTOCHECK DCV 1 V 600 0 V 100 mV AutoCheck Lo Z DCV Threshold gt 1 5VDC amp lt 1 5VDC nominal AutoCheck Lo Z DCV input impedance Initially approx 2 5kQ 600pF nominal impedance increases abruptly within a fraction of a second as display voltage is above 50V typical Ended up impedances vs display voltages typically are 10 kQ 100V 60 kQ 300V 200k22 600V 420kQ 1000V 1 3 rdg 5dgts OHM amp AUTOCHECK OHM Range 600 0 Q 0 6 000 KQ i g 0 5 rdg 5dgts 600 0 KQ 0 8 rdg 5dgts 6 000 MQ Oa KQ 1 2 rdg Sdgts 40 00 MQ 2 3 rdg 5dgts Open Circuit Voltage 0 45VDC typical AutoCheck OhmThreshold lt 10 00MQ nominal a Q 1 Q 60 00 KQ 10 Q 1 KQ 11 Hz LINE LEVEL FREQUENCY 200 40Hz 1999Hz V V V 100 V 40Hz 1999Hz 1000 V 600 V 40Hz 1999Hz AutoCheck Lo Z ACV Threshold gt 1 5V 50 60Hz nominal 2000 A que Suen AutoCheck Lo Z ACV input impedance VFD6 vV 1V 2V 10Hz 400Hz Initially approx 2 5kQ 600pF nominal impedance increases VFD 60 vV 6V 20V 10Hz 400Hz abruptly within a fraction of a second as display voltage is VED 600 Vv 60 V 200 V 10Hz 400Hz above 50V typical ae up impedances vs display voltages typically are Accuracy 0 1 4d 10 kQ 100V VED sensitivity linearly decreases from 10 F S 20
5. fuse panels and some MAINS installation control equipment OVERVOLTAGE CATEGORY IV CAT IV is for equipment installed at or near the origin of the electrical supply to a building between the building entrance and the main distribution board Such equipment may include electricity tariff meters and primary overcurrent protection devices Oa TERMS IN THIS MANUAL JA weenine Identifies conditions and actions that could result in serious injury or even death to the user Penirion Identifies conditions and actions that could cause damage or malfunction in the instrument Z N warnine To reduce the risk of fire or electric shock do not expose this product to rain or moisture The meter is intended only for indoor use To avoid electrical shock hazard observe the proper safety precautions when working with voltages above 60 VDC or 30VAC rms These voltage levels pose a potential shock hazard to the user Before amp after hazardous voltage measurements test the voltage function on a known source such as line voltage to determine proper meter functioning Keep your hands fingers behind the hand finger barriers of the meter and the test leads that indicate the limits of safe access of the hand held part during measurement Inspect test leads connectors and probes for damaged insulation or exposed metal before using the instrument If any defects are found replace them immediately Only use the test lead provided with the equip
6. 0Hz 60 KQ 300V to 40 F S 400Hz 200kQ 600V 420kQ 1000V TEMPERATURE DIODE TESTER Range Test Current Open Circuit mange Accuracy Typical Voltage 50 C 1000 C 0 3 rdg 4dgts 1 000V 0 56mA lt 1 8V DC typical 58 F 1832 F 0 3 rdg 6dgts Accuracy 1 0 3d K type Thermocouple range amp accuracy not included AUDIBLE CONTINUITY TESTER between 10Q and 200Q 32ms approx PRODUCT DESCRIPTION 1 Antenna for Non Contact EF Detection 2 Hand Finger Barrier to indicate the limits of safe access of the meter during measurement 3 Rotary switch Selector to turn the power ON OFF Wear 2 AA and Select a function AC DC TRMS Clamp on DMM 4 Push buttons for special functions amp features 5 Input Jack for all functions EXCEPT non invasive DCA amp ACA current eu IHD functions podi n 6 Common Ground refer l ence Input Jack for all functions EXCEPT non invasive DCA amp ACA current functions 7 3 5 6 digits 6000 counts amp 3 1 2 digits 2000 counts dual numeric LCD display 8 Jaw trigger for opening the clamp jaw 9 Jaw center amp DCA polarity Indicator at where best DCA amp ACA accuracy is specified 10 Hall effect Clamp Jaw for AC amp DC current magnetic field pick up SAE OPERATION CAUTION Before and after hazardous voltage measurements test the voltage function on a known source such as line voltage to determine proper meter functioning AutoCheck
7. LIST OF PRODUCTS Digital Multimeter AC Clamp Adaptor Thermo Anemometer Distance Meter Network Cable Tester Earth Resistance Tester DC Power Supplies Calibrators Frequency Counter Phasing Sticks Waterproof Pen Testers EMF Detector Digital AC amp AC DC Clampmeter AC DC Current Adaptor Thermo Hygrometer Digital Lux Meter Power Factor Regulator Digital Panel Meters High Voltage Detector Gas Analysers Function Generator Battery Tester Solar Power Meter Wood Paper amp Grain Moisture Meter Transistorised Electronic Analog amp Digital Insulation Resistance Testers upto 10 KV Digital Sound Level Meter amp Sound Level Calibrator Digital contact amp Non contact Type Tachometer Digital Non contact infrared Thermometer Maximum Demand Controller Digital Power Meter Digital Hand Held Temperature Indicators 17 Bharat Industrial Estate T J Road Sewree W Mumbai 400015 INDIA Sales Direct 022 24156638 Tel 022 2412 4540 2418 1649 Fax 91 22 2414 9659 E mail kusam_meco vsnl net Website www kusamelectrical com www kusam meco co in KUSAM MECO AN ISO 9001 2008 COMPANY AC DC Clamp On Multimeter with VFD EF Detection amp PC Interface MODEL KM 2777 OPERATION MANUAL AC DC TRMS Clamp On Multimeter with VFD EF Detection amp PC Interface MODEL KM 2777 MAX 200A av caT iy amp AA AC DC TRMS a A p l FULA AOAN SELECT RANGE AZERO EF TAKE
8. ana plug type K temperature bead probe Bkp60 with correct polarities You can also use a plug adapter bkb32 optional purchase with banana pins to type k socket to adapt other type k standard mini plug temperature probes oes Electric Field EF Detection In Voltage or Current function press the EF button for one second or more and release to toggle to EF Detection feature The meter displays E F when it is ready Signal strength is indicated as a series of bar graph segments on dhe display together with variable beep tones Non Contact EF Detection An antenna is located along the top right end of the clamp jaw which detects electric field surrounds energized conductors It is ideal for tracing live wiring connections locating wiring breakage and to distinguish between live or earth connections robe Contact EF Detection For more precise indication of live wires such as distinguishing between live and ground connections use the Red test probe for direct contact measurements PC computer interface capabilities The instrument equips with an optical isolated interface port at the meter back for data communication Optional purchase PC interface kit BRUA 19X is required to connect the meter to the PC computer RS232 or USB ports Press and hold the HOLD button while turning the meter on to enable meter PC COMM output Hold The hold feature freezes the display for later view Press the HOLD button moment
9. arily and release to toggle the hold feature 5ms CREST MAX capture mode Press CREST HOLD button for one second or more and release to activate CREST MAX capture Instantaneous Peak Hold mode to capture signal peak of voltage or current in duration as short as 5ms The LCD C amp MAX turn on Press again the button momentarily and release can toggle the combination use of HOLD feature Press the button for 1 second or more and release to exit CREST MAX capture mode Auto ranging and Auto Power Off are disabled automatically in this mode Ae Backlighted LCD display Model KM 2777 Press the SELECT button for 1 second or more to toggle the LCD backlight The backlight will also be turned off automatically after 32 seconds to extend battery life Relative Zero A mode Relative Zero allows the user to offset the meter consecutive measurements with the main display displaying reading as the reference value Press the REL button momentarily and release to toggle Relative Zero mode Manual or Auto ranging Press the RANGE button momentarily and release to select manual ranging and the meter will remain in the range it was in the LCD AUTO turns off Press the button again to step through the ranges Press and hold the button for 1 second or more and release to resume auto ranging Note manual ranging feature is not available in Hz and function ranges Set Beeper Off Press the RANGE button while turning the met
10. cified Other function ranges Total Accuracy Specified Accuracy 200 digits Performance above 3V m is not specified 05 ELECTRICAL SPECIFICATIONS DCA CURRENT Clamp on Accuracy is readings digits number of digits or otherwise specified at 23 C 5 C amp less than 75 R H True RMS Model KM 2777 voltage accuracies are specified from 5 to 100 of range or otherwise specified Maximum Crest Factor lt 1 4 1 at full scale amp lt 2 8 1 at half scale amp with frequency Induced error from adjacent current carrying conductor components within the specified frequency bandwidth for non lt 0 1A A sinusoidal waveforms Specified with Relative Zero A mode applied to offset the non zero residual readings if any ACA CURRENT Clamp on Range Accuracy DC ACA CURRENT Clamp on 0 500 A 2 5 rdg 5dgts DC 50Hz 60Hz 7 o 200 0 A 100mA 500 2000 A 3 0 rdg 5dgts Parr 40Hz 50Hz amp 60Hz 400Hz 2000 200 0 A 100mA __ 4 2 5 rdg 5dgts 40Hz 50Hz amp 60Hz 400Hz 2 o 200 0 A 100mA 0 500 A 3 0 rdg 5dgts AE 500 1000 A 3 5 rdg 5d gts 0 1000 A 1000 2000 A Unspecified 1000 2000 A Unspecified True RMS Crest Factor True RMS Crest Factor lt 1 4 1 at full scale amp lt 2 8 1 at half scale lt 1 4 1 at full scale amp lt 2 8 1 at half scale Induced error from adjacent current carrying conductor Induced error from adjacent current carrying conductor lt 0 1A A lt 0 1A A
11. eads before your apply power to your circuit To be safe start by setting your meter to its highest range first TABLE OF CONTENTS TITLE PAGE NO FET nen een ere E eee 01 TERMS IN THIS MANUAL INTERNATIONAL ELECTRICAL SYMBOL FEATURES amp GENERAL SPECIFICATION ELECTRICAL SPECIFICATION PRODUCT DESCRIPTION OPERATION MAINTENANCE TEST CERTIFICATE WARRANT Wece epet eee dere temece enanas ee sireseseeeeateieseseancoeaneeseestesiesaes 29 1 SAFETY INFORMATION This manual contains information and warnings that must be followed for operating the instrument safely and maintaining the instrument in a safe operating condition If the instrument is used in a manner not specified by the manufacturer the protection provided by the instrument may be impaired The meter protection rating against the users is double insulation per IEC EN61010 1 2nd Ed UL61010 1 2nd Ed CAN CSA C22 2 No 61010 1 0 92 IEC EN61010 2 032 UL61010B 2 032 CAN CSA C22 2 No 61010 2 032 04 amp IEC EN61010 031 2002 A1 2008 Measurement Category IV 1000V AC amp DC Per IEC61010 1 2010 OVERVOLTAGE CATEGORY OVERVOLTAGE CATEGORY Il CAT Il is for equipment intended to be supplied from the building wiring It applies both to plug connected equipment and to PERMANENTLY CONNECTED EQUIPMENT OVERVOLTAGE CATEGORY Ill CAT III is for equipment intended to form part of a building wiring installation Such equipment includes socket outlets
12. er on to temporarily disable the Beeper feature Turn the rotary switch OFF and then back on to resume 25 Auto Power Off APO The Auto Power Off APO mode turns the meter off automatically to extend battery life after approximately 34 minutes of no rotary switch or push button operations To wake up the meter from APO press the SELECT button momentarily and release or turn the rotary switch OFF and then back on Always turn the rotary switch to the OFF position when the meter is not in use Disabling Auto Power Off Press and hold the SELECT button while turning the meter on to temporarily disable the Auto Power Off APO feature Turn the rotary switch OFF and then back on to resume MAINTENANCE WARNING To avoid electrical shock disconnect the meter from any circuit remove the test leads from the input jacks and turn OFF the meter before opening the case Do not operate with open case Trouble Shooting If the instrument fails to operate check batteries and test leads etc and replace as necessary Double check operating procedure as described in this user s manual If the instrument voltage resistance input terminal has subjected to high voltage transient caused by lightning or switching surge to the system under test by accident or abnormal conditions of operation the protective impedance components in series might be 26 blown off become high impedance like fuses to protect the user and the instrumen
13. ily SS True RMS and release to select re _ DC ACV N Comm een 608 ke Dengi tte EF Ci C2 worn AA wea 2 AA E TRMS p a S AC DC TRMS lamp on DMM Cla M lamp an DMM ACA DCA amp DC ACA Model KM 2777 functions MAX 2000A Mar a CAUTION Application and removal of the Clamp on meter Input is made through the clamp K GD For non invasive current measurements press the jaw trigger and jaws for non invasive current WN ial clamp the jaws around conductor s of only one single pole of a measurements Defaults at ACA E circuit for load current measurement Make sure the jaws are function Press SELECT button y gem T completely closed or else it will introduce measurement errors momentarily amp release to select the Enclosing conductor s of more than one pole of a circuit may result subject functions in sequence in differential current like identifying leakage current Lee pee ao E measurement Locate the conductor s at the Jaws center as much as possible to get the best measuring accuracy For removal press the jaw trigger and remove the jaws from the conductor s ioe Adjacent current carrying devices such as transformers motors and conductor wires will affect measurement accuracy Keep the jaws away from them as much as possible to minimize influence Q Resistance amp Continuity Functions Inputs are made through the test leads terminals Defa
14. le feature for precise indication of hard signals such as distinguishing between hot and open wires to ground in electrical installation applications WARNING AutoCheck mode input impedance increases abruptly from initial 2 5KQ to a few hundred kQ 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 1000VAC for example can be up to 566mA 1000V x 1 414 2 5kQ decreasing abruptly to approx 3 37mA 1000V x 1 414 420kQ within a fraction of a second Do not use AutoCheck mode on circuits that could be damaged by such low input impedance Instead use rotary switch selector V o y Vv high input impedance voltage modes to minimize loading for such circuits Tip VFD ACV amp ACV functions Inputs are made through the test leads terminals VFD ACV function is to deal with VFD Variable Frequency Device signals It however further pre selects the most appropriate voltage ranges and thus the Hz trigger levels to best cope with most VFD Voltage and VFD Frequency applications Note The Hz trigger level is determined by the AC DC AC Voltage or Current function range being in use Press RANGE button to select different function ranges and thus trigger levels manually DCV amp DC ACV functions Inputs are made through the test leads terminals Defaults at DCV Function Press SELECT button momentar
15. ment or UL Listed Probe Assembly rated CAT IV 1000V or better This Clamp on meter is designed to apply around or remove from uninsulated hazardous live conductors But still individual protective equipment must be used if hazardous live parts in the installation where measurement is to be carried out could be accessible CAUTION Disconnect the test leads from the test points before changing meter functions ioe INTERNATIONAL ELECTRICAL SYMBOLS A Caution Refer to the explanation in this Manual A Caution Risk of electric shock Earth Ground Double Insulation or Reinforced insulation Ss pe AC Alternating Current DC Direct Current conductors is permitted iran Application around and removal from hazardous live 2 CENELEC Directives The instruments conform to CENELEC Low Voltage directive 2006 95 EC and Electromagnetic compatibility directive 2004 108 EC SPECIAL FEATURES AutoCheck Voltage amp Ohms VFD V amp VFD Hz function 5ms CREST MAX capture mode Peak Hold Autoranging Relative Zero mode Display Hold function EF Detection NCV Backlight LCD Display Auto Power Off Diode Test amp Continuity Test PC Interface Optional 3 SPECIFICATIONS GENERAL SPECIFICATIONS Sensing TRMS sensing Jaw Opening 55mm max Display 3 5 6 digits 6000 counts amp 3 digits 1 999 counts for Hz Update Rate 5 per second nominal Polarity Automatic Low Battery Bel
16. mer of a KUSAM MECO authorized dealer This warranty does not apply for damaged Ic s fuses burnt PCB s disposable batteries carrying case test leads 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 amp 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 THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY 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 Boye
17. ow approx 2 4V Operating Temperature 0 C to 40 C Relative Humidity Maximum 80 R H for temperature upto 31 C decreasing linearly to 50 Relative Humidity at 40 C Storage Temperature 20 C to 60 C lt 80 R H With battery removed Altitude Operating below 2000m Temperature Coefficient nominal 0 15 x specified accuracy C 0 C 18 C or 28 C 40 C or otherwise specified 04 Power supply Standard 1 5V AAA Battery x 2 Power Consumption Typical 14mA for Current function amp 5 2mA for others APO Timing Idle for 34 minutes APO Consumption 10mA typical Dimension 264 L x 97 W x 43 H mm Weight Approx 608gm Accessories Test leads pair user s manual Bkp60 banana plug K type Thermocouple x 1 amp carrying case Optional Accessories USB interface kit BRUA 19X BKB32 banana plug to type K socket plug adaptor SAFETY e Double insulation per IEC EN61010 1 2 Ed UL61010 1 2 Ed amp CAN CSA C22 2 No 61010 1 0 92 to Category CAT IV 1000V AC amp DC Transient Protection 12 kV 1 2 50us surge Overload Protection Clamp on jaws 2000A rms continuous amp COM Terminals all other functions 1000V rms Pollution degree 2 EMC Meets EN61326 1 2006 EN55022 EN61000 3 2 EN61000 3 3 EN61000 4 2 EN61000 4 3 EN61000 4 4 EN61000 4 5 EN61000 4 6 EN61000 4 8 EN61000 4 11 In an RF field of 3V m Capacitance function is not spe
18. t Most measuring functions through this terminal will then be open circuit Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for periods of longer than 60 days remove the batteries and store them separately Battery Replacement The meter uses standard 1 5V AA Size IEC LR6 battery X 2 Loosen the 2 captive screws from the battery cover case Lift the battery cover case Replace the batteries Replace battery cover case Re fasten the screws MUMBAI TEST CERTIFICATE AC DC CLAMP ON 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 KM 2777 SERIAL NO DATE ISO 9001 KUSAM MECO REGISTERED 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 custo
19. ults at O RESISTANCE Press SELECT button momentarily and release to select Continuity Capacitance amp gt Diode functions Inputs are made through the test lead terminals Defaults at Capacitance Press SELECT button momentarily and release to select Diode Note When using Diode test function normal forward voltage drop forward biased for a good silicon diode is between 0 400V to 0 900V A reading higher than that indicates a leaky diode defective A zero reading indicates a shorted diode defective An OL indicates an open diode defective Reverse the test leads connections reverse biased across the diode The digital display shows OL if the diode is good Any other readings indicate the diode is resistive or shorted defective CAUTION 1 Using Resistance Continuity Diode or Capacitance function in a live circuit will produce false results and may damage the meter In many cases the suspected component s must be disconnected from the circuit to obtain an accurate measurement reading 2 When using Capacitance function discharge capacitor s before making any measurements Large value capacitors should be discharged through an appropriate resistance load Loe Temperature Function OE Or Defaults at C Celsius readings Press SELECT button momentarily and release to select F Fahrenheit readings Inputs are made through the test leads terminals Be sure to insert the ban
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