User Manual
Contents
1. Digital True RMS Multimeter Instruction Manual 60V 10mV 1 GENERAL DESCRIPTION 600V 100mV lt 200V 50Hz 5kHz amp gt 200V 50Hz 1kHz 1 0 10 This multimeter with highly stable performance is a reliable 3 6 7 digit digital multimeter It uses the LCD with 23mm high figure to make the 750V 1V 50Hz 1kHz 1 0 10 reading clear and make operation more convenient Input impedance approx 10MQ This multimeter can test DCV ACV VSD DCA ACA resistance capacitance frequency temperature duty cycle transistor diode and continuity Overload protection 1000V DC or AC peak value 750V This meter holds functions including true RMS analog bar and unit symbol display data holding relative value measuring maximal minimal value Display True RMS measuring auto manual range switching RANGE auto power off backlight and warning functions To assure high accuracy and resolution it 3 2 4 Variable Frequency Voltage True RMS VSD V True RMS adopts an 8 bit microprocessor and a dual integral A D conversion IC as its core which can drive LCD directly It is an ideal tool for labs factories Frequency response Accuracy and radio technology aa cei 30Hz 60Hz 60Hz 200Hz 6V ImV 2 SAFETY PRECAUTIONS 60V DAV 2 0 10 5 0 10 The instrument is designed according to IEC1010 standard safety standard issued by International Electro technical Committee Please read the 600V 100mV m following before operation2. 3 Maximum input current is 600mA or 20A subject to where the red test lead insert in current higher than that will damage the fuse and may cause damage to the circuit of meter 4 7 Resistance measurement 1 Switch the knob to Q range and connect the leads with the resistor under test 2 Insert the black lest lead in COM terminal and the red one in V Q Hz terminal 3 Auto range is the original states press RANGE key change to manual range mode 4 Before measuring low resistance you should make the test leads short circuit at first and then press REL By this way you can get the actual value of the resistance Note 1 Firstly users should select the highest range if the value of resistance is unknown beforehand and then select the proper range based on displaying value 2 The LCD displays OL when the resistance is over the selected range The knob should be adjusted to a higher range When measuring value is over 1MQ the reading will take a few seconds to be stable It s normal for high resistance measurement 3 When input terminal is in open circuit LCD will display OL 4 Before measuring in line resistor make sure that the power is off and all capacitors are discharged completely 5 Do not input any voltage at resistance range 4 8 Diode and Continuity test 1 Switch the knob to Q 9 range and press DC AC key to select diode measurement mode 2 Insert the
3. battery to avoid leakage damage 9 When E symbol is displayed you should replace the battery according to the following steps 9 1 Follow picture 2 and remove the holster at first 9 2 Unlock the battery door and remove the cover 9 3 Replace the old battery with the new one For longer using life it s better to use alkaline battery 9 4 Fix the battery door 9 5 Follow the picture to put on the holster 10 Fuse change When replacing fuse please use fuse with same type and specification 10 1 Follow picture 2 and remove the holster at first then unlock the battery door and remove the cover 10 2 Take out the fuse and put on a new one 10 3 Fix the battery door and put on the holster 6 TROUBLE SHOOTING If the meter does not work properly please check the meter as following steps If the problems still cannot be solved please refer to repairing center or contact the local dealers Fault Solution t a Turn on the power No reading on LCD a Replace battery ES signal appears a Replace battery No current or temperature input a Replace fuse Error Value a Replace battery a The specifications are subject to changes without prior notice a The content of this manual is regarded as correct If users find out any mistakes or omissions please kindly contact the manufacturer i The manufacturer will not be responsible for accidents and damage caused by impr
4. inside the object to be tested Then you can read temperature from the screen and the data is in Centigrade Note 1 If insert the thermocouple oppositely it will display the wrong value When the temperature is rising the value will be down 2 When the input terminal is open circuit it will display the environment temperature 3 Don t change the temperature probe randomly or the accuracy will not be guaranteed 4 Don t input voltage at temperature range 4 12 Transistor Test hFE 1 Switch the knob to hFE range 2 Define the transistor is NPN or PNP type then insert the emitter base and collector separately in the relative hole 5 METER MAINTENANCE The meter is a precise instrument Random changes to the circuit are not allowed Note Don t input the voltage value higher than DC 1000V or AC 750V rms Don t input voltage at current resistance diode and continuity range Don t make any measurements when the battery isn t installed or the back cover isn t fixed Before replacing fuse please remove the test leads from the measuring point and turn off the power Keep the meter away from water dust and shock Don t expose the meter under high temperature high humidity combustible explosive and strong magnetic place Wipe the case with a damp cloth and detergent Do not use abrasives and alcohol to clean the meter CoN DMN WN If do not operate for a long time you should take out the
5. 3 0 10 P r A 750V 1V 2 1 Check the connection and insulation of test leads to avoid electric shock Input impedance approx 10MQ Overload protection 1000V DC or AC peak value 750V Display True RMS 3 2 5 DC Current DCA 2 2 To avoid electric shock and damage to the meter do not input voltage higher than DC 1000V or AC 750V during measurement 2 3 When measuring voltage higher than DC 60V or AC 40V please be careful 2 4 Select correct function and range to avoid fault operation 2 5 Please move the test leads away from test points when switching the function 2 6 Please don t input voltage in current terminal Range Accuracy Resolution 2 7 Please don t modify the circuit arbitrarily it may cause safety problem 6000s O 1pA 2 8 Introduction of safety symbol 6000uA 1 0 3 1pA A exists high voltage lt GND E dual insulation 60mA 1OWA hy Operator must refer to manual I Low battery indication 600mA 1004A 6A ImA 2 0 5 3 FEATURES 20A 10mA 3 1 General Characteristics Maximum voltage drop 300mV for mA and A range 3 1 1 Display LCD Maximum input current 20A for 15 seconds 3 1 2 Max display 6000 3 6 7 digits automatic polarity unit symbol and 61 section analog display Overload protection 0 5A 250V fast action fuse for mA fuse 13A 250V fast act
6. DUTY to shift between frequency and duty cycle measurements Q gt Q resistance measurement Press DC AC to choose diode test Press DC AC again to choose continuity test dk Capacitance measurement Hz Frequency measurement Press DC AC to choose diode test Press DC AC again to choose continuity test C F Temperature measurement Press DC AC to shift between C and F hFE Triode magnification measurement uA DC current measurement from 0 pA to 6000 uA Press DC AC for AC current measurement from 0 pA to 6000 uA mA DC current measurement from 0 mA to 600 mA Press DC AC for AC current measurement from 0 mA to 600 mA AN DC current measurement from 0 A to 20A Press DC AC for AC current measurement from 0 A to 20A Function Button 1 MAX MIN Recording of minimum and maximum values 1 Press MAX MIN into MAX mode which will store the maximum value of measurements Press it again to start MIN mode which will store the minimum value of measurements 2 Under MAX MIN mode it will start manual range automatically Under this mode functions like RELA HOLD RANGE and DC AC will not be available 3 Under MAX MIN mode it will store maximum or minimum values automatically 4 Under MAX MIN mode analog bar display and auto power off can t be used 5 Press MAX MIN for 2 seconds it will exit MAX MIN mode 2 Hz DUTY When measuring the Frequency press Hz DUTY will shift between frequency and duty cycle 1 99 measurement Wh
7. black test lead in COM terminal and the red one in V Q Hz terminal the polarity of red lead is 3 Forward measurement connect red test lead to the positive polarity and the black test lead to the cathode polarity of the diode LCD will display the approx value of forward voltage drop 4 Backward measurement connect red test lead to the cathode polarity and the black test lead to positive polarity of the diode LCD will display OL 5 The complete diode testing includes forward and backward measurement if the result doesn t meet the descriptions above it means the diode is broken 6 Press DC AC key to select the Continuity measurement mode 7 Connect test leads to two points of tested circuit if the resistance is less than 30 10 Q the buzzer sounds Note Don t input voltage at gt 9 range 2 Make sure the power is off and all capacitors are discharged Any AC signal will make the buzzer sounds 4 9 Capacitance measurement Switch the knob to AF range 2 Insert the black lest lead in COM terminal and the red one in V Q Hz terminal 3 If the LCD doesn t display 0 press REL to clear the reading 4 Connect the capacitor to COM and VQHz terminal Note the red test leads is for positive pole LCD displays capacitance value Note Don t input voltage or current to the VOQHz terminal when measuring the capacitance or the capaci
8. en measuring DC AC voltage current press Hz DUTY can choose voltage frequency duty cycle mode or current frequency duty cycle mode 3 RELA 1 Stores the present reading as a reference for subsequent readings The display is zeroed and the stored reading is subtracted from all subsequent readings REL LAvcficeadicws Hi nput value 2 RELA function is only available under manual range mode 3 Press REL A will enter manual range automatically 4 Under REL A mode press 5 Under HOLD mode press REL Awi A NOLIRS282MAX MIN HOLD REL BES APOHi current measuring value as reference value and the reference value will be hre C F Ji EIE fi J C se s I I 11 as AUTO Zay a me on an wy a mVAnF subtracted by subsequent readings automatically 6 Press RANGE DC AC or switch the rotary will exit the RELA mode RELA symbol will disappear from LCD TOL display Under RELA mode when input value over limit value OL will be displayed Press RELA to exit the RELA mode When OL is displayed meter can t enter the RELA mode 8 Under RELA mode analog bar display is not available 4 HOLD LIGHT Data Hold and Backlight A HOLD data hold 1 Press HOLD will enter HOLD mode the current value will be hold and symbol HOLD will be displayed Press HOLD again can exit the HOLD mode 2 Press RANGE DC AC or switch the rotary will exit the HOLD mode B LIGHT backlight control 3 Press HOLD more than 2 seconds wil
9. he higher range 2 Do not input a voltage over AC 750V It may cause damage to the circuit of meter 3 Be careful while measuring a high voltage circuit DO NOT touch the high voltage circuit 4 The built in buzzer will beep to remind user when the measuring voltage over AC7SOV 4 4 VSD True RMS voltage measurement 1 Switch the knob to NV range 2 Insert the black test lead in COM terminal and the red one in V Q Hz terminal 3 Auto range is the original states it will display AUTO symbol press RANGE key change to manual range mode and 6V 60V 600V 750V range is available All the signal will be converted by a wave filter and voltage with frequency higher than 1kHz will be prevented and voltage with lower frequency can pass By this way it can improve the measurement results of composite wave produced by inverter and variable frequency motor 4 Connect the leads to the electric circuit LCD will display voltage of the two test points Note 1 Under manual range mode if LCD displays OL it means over range you should select the higher range 2 Do not input a voltage over AC 750V It may cause damage to the circuit of meter 3 Be careful while measuring a high voltage circuit DO NOT touch the high voltage circuit 4 The built in buzzer will beep to remind user when the measuring voltage over AC7SOV 4 5 DCA measurement 1 Switch the knob to UA mA A range The default i
10. ion fuse for A input 3 1 3 Measurement method double integral A D conversion 3 2 6 AC Current True RMS 3 1 4 Sampling rate approx 3 times sec Range Accuracy Frequency response Resolution 3 1 5 Over range display OL displayed in the highest digit 600uA 0 1pA 3 1 6 Low battery display E T 6000uA 1pA 3 1 7 Working environment 0 40 SC relative humidity lt 80 40mA 1 2 20 40H2 5KHz 104A 3 1 8 Store condition 10 40 C relative humidity lt 80 600mA 100A 3 1 9 Battery 1 piece 9V battery 6F22 6A 4 1 5 20 40Hz 400Hz ImA 3 1 10 Dimension 185x93x35mm length width height 20A 4 2 5 20 40Hz 400Hz 10mA 3 1 M Weight apptox 2208 CGneludirig battery Maximum voltage drop 300mV for uA mA and A range 3 1 12 Accessories test leads user manual temperature probe crocodile clip gift box and 1 9V battery Maximum input current 20A for 15 seconds Overload protection 0 5A 250V fast action fuse 13A 250V fast action fuse scuracv ag adi ata igits ass q 7 i a 9 i idi 3 2 1 Accuracy a x reading data digits To assure accuracy the environment temperature should be 2345 C rel amidi phyeld 3 2 Technical Features lt 75 One year guarantee since production date 3 2 7 Resistance Q 22 DE voltage BEY Range Accuracy Resolution Range Accuracy Resolution 6009 H0 8 45 012 600mV 1 0 5 0 1mV 6
11. kQ 10 oy pm 60kQ 100 60V 0 5 3 10mV 600kQ 2 0 8 3 1002 600V 100mV 6MQ 1kQ 1000V 1 0 3 1V 30MQ 1 2 5 10kQ Input impedance approx 1 OMQ Open circuit voltage 600mV Overload protection 1000V DC or AC peak value 750V Overload protection 250V DC AC peak 3 2 3 AC voltage ACV True RMS NOTE At 600 Q range connect the test leads to measure the wire resistance then subtracts it from the real measurement or press REL to clear Range Resolution Frequency response Accuracy the wire resistance and read the value directly 6V lmV 50Hz 5kHz 1 0 10 5kHz 20kHz 1 5 10 3 2 8 Diode and Continuity Test Range Description Test Condition 3 Forward DC current is approximate 0 5mA Diode forward voltage drop reverse voltage is approximate 1 5V gt When the resistance under test is less than 30 10Q buzzer sounds Open circuit voltage is approximate 0 5V continuously Overload protection 250V DC or AC peak value NOTE Do not input vol 3 2 9 Capacitance C tage at this range Range Accuracy Resolution 40nF 2 5 10 10pF 400nF 100pF 4uF 4 2 5 5 InF 40uF 10nF 400uF 100nF 5 0 10 2000uF 100nF Overload protection 250V DC AC peak 3 2 10 Frequency Hz Range Accuracy Resolution 10Hz 0 01Hz 100Hz 0 1Hz 1000Hz 1Hz 10kHz 0 5 4 10Hz 100kHz 100Hz 1MHz 1kHz 30MHz 10kHz I
12. l turn on the backlight Press it for another 2 seconds will turn off the backlight When backlight is on it will auto off in 10 seconds unless you press HOLD for more than 2 seconds 5 RANGE Auto or manual ranging Auto range is the default when you turn on the meter Press RANGE it will enter manual range mode Press RANGE can switch between the ranges available for the selected function To return to auto ranging hold the button down for more than 2 seconds 6 DC AC 1 DC AC function button can choose DC or AC measurement under AZ mode Under Q gt Ohm Diode Beeper mode press DC AC can Corf 2 Keep this button down when turn on the meter auto power off function will be canceled the symbol APO will disappear Under the dormancy choose Q gt F or Under temperature measurement press DC AC can choose mode press DC AC will turn on the meter and will activate auto power off function 3 When there is no measurement in 15 minutes the meter will auto power off and enter dormancy mode In one minute before dormancy mode the buzzer will beep 5 times to remind user Press any button will exit the dormancy mode LCD Display the data and unit symbol Number Feature Indication 1 Negative polarity indicator for the analog bar graph 2 AUTO Auto range mode 3 AC AC voltage or current measurement 4 Indicates negative readings 5 DC DC voltage or curre
13. nput sensitivity 0 7V RMS Overload protection 250V DC AC peak 3 2 11 Temperature C F Range Display Resolution Ga tena oe lt 400 C 0 8 4 1 2400 C 1 5 15 0F 1832 F lt 750 F 0 8 5 F 2750 F H1 5 15 Sensor TPO1 K type thermocouple NOTE Do not input voltage at this range it may cause damage to the meter 3 2 12 Transistor triode hFE Measurement Range Test Conditions Base current is approximate 15uA Vce is NPN or PNP 0 1000 about 4 5V 4 OPERATION 4 1 Panel Description Input terminal Terminal Description A Input terminal for AC and DC current measurements to Max 20 00 A 15 seconds frequency and duty cycle coefficient IAIA Input terminal for AC and DC microamp and milliamp measurements to 600mA 600mA can last 18 hours frequency and duty cycle coefficient COM Common terminal for all measurements voit Input terminal for voltage continuity resistance diode capacitance frequency and duty cycle coefficient measurements hFE Input terminal for triode measurement TEMP Input terminal for temperature measurement Rotary switch used to change the range and choose functions Symbol Vx DC voltage measurement Press DC AC to shift between DC AC voltage measurements Press Hz DUTY to shift between frequency and duty cycle measurements V Variable frequency voltage measurement Press Hz
14. nt measurement 6 zp Low battery indication Warning To avoid false readings which could lead to possible electric shock or personal injury please replace the battery as soon as the battery indicator appears 7 RS232 Invalid 8 MAX MIN Indicators for minimum maximum recording mode 9 HOLD Display Hold is active 10 REL Relative REL mode is active 11 gt Diode test mode and the continuity beeper is on 12 APO Auto power off mode is on Indicator for Hi measurement mode At Q range press DC AC can choose Max 6000MQ high resistance measurement Accuracy is not referable 13 i At Hz range press DC AC can choose Max 1000MHz high frequency measurement Accuracy is not referable High frequency measurement needs special accessories a device can divide frequency to 128 or keep the impulse amplitude above 200mV RMS We don t provide those special accessories hFE C F hFE Triode magnification measurement Degrees Celsius Degrees Fahrenheit Percent used in duty cycle coefficient measurement RPM Rotational speed test RPM needs special accessories a device which can convert rotate speed to electrical pulse and the electrical pulse should be above 200mV RMS We don t provide these accessories i MQ kQ Q Megohm Kilohm Ohm Hz kHz MHz Hertz Kilohertz Megahertz mV V Millivolts Volts A pA mA Amperes amps Microamp Milliamp HF nF Microfarad Nanofarad Holster and Battery door 4 2 DCV measurement 1 Swi
15. oper operations The functions described in this User Manual shall not be considered as the reason for any special usages 201187 V0 0
16. s DCA measurement press DC AC can choose DC or AC measurement 2 Insert the black test lead in COM terminal and the red one in uAmA terminal Max 600mA or to A terminal Max 20A 3 Connect the leads to the electric circuit LCD will display polarity and current of the test point connected by the red test lead Note 1 Firstly users should select the highest range if users not sure about the range of current under test and then select the proper range based on displaying value 2 If the LCD displays OL it means the current is over range Now you need to select a higher range 3 Maximum input current is 600mA or 20A subject to where the red test lead insert in current higher than that will damage the fuse and may cause damage to the circuit of meter 4 6 ACA measurement 1 Switch the knob to UA mA lt A7 range Press DC AC to choose AC measurement 2 Insert the black test lead in COM terminal and the red one in uAmA terminal Max 600mA or to A terminal Max 20A 3 Connect the leads to the electric circuit LCD will display polarity and current of the test point connected by the red test lead Note 1 Firstly users should select the highest range if users not sure about the range of current under test and then select the proper range based on displaying value 2 If the LCD displays OL it means the current is over range Now you need to select a higher range
17. tch the knob to V 73 range The default is DCV measurement press DC AC can choose DC or AC measurement 2 Insert the black test lead in COM terminal and the red one in V Q Hz terminal 3 Auto range is the original states it will display AUTO symbol press RANGE key change to manual range mode and 600mYV 6V 60V 600V 1000V range is available 4 Connect test leads to the test point LCD will display polarity and voltage of the test point connected by the red test lead Note 1 Under manual range mode if LCD displays OL it means over range you should select the higher range 2 Do not input a voltage over DC 1000V It may cause damage to the circuit of meter 3 Be careful while measuring a high voltage circuit DO NOT touch the high voltage circuit 4 The built in buzzer will beep to remind user when the measuring voltage over DC1000V 4 3 ACV measurement 1 Switch the knob to V 7G range and then press DC AC to choose AC measurement 2 Insert the black test lead in COM terminal and the red one in V Q Hz terminal 3 Auto range is the original states it will display AUTO symbol press RANGE key change to manual range mode and 6V 60V 600V 750V range is available 4 Connect the leads to the electric circuit LCD will display voltage of the two test points Note 1 Under manual range mode if LCD displays OL it means over range you should select t
18. tor still in the Cx terminal 2 In order to assure the accuracy please press REL to clear the reading before testing 3 There is only the auto range mode under the capacitance range 4 The capacitor must be completely discharged before testing 5 The reading of 400uF range will take more than 15 seconds to be stable 4 10 Frequency measurement Insert the black lest lead in COM terminal and the red one in V Q Hz terminal 2 Switch the knob to Hz range connect the test leads or shielded cable to the signal source or the load which is tested 3 Press Hz DUTY key to choose frequency duty cycle measurement LCD will display the frequency or duty cycle of the tested signal source Note 1 There is only the auto range mode under the frequency range 2 The meter can still work if the input current is higher than 10V rms but the accuracy is not guaranteed 3 In noisy environment it s better to use shield cable to measure a low signal 4 When measuring high voltage circuit do not touch the high voltage circuit 5 Don t input voltage higher than 250V DC or AC peak value or it may damage the meter 4 11 Temperature measurement 1 Switch the knob to C F range and press DC AC key to choose C or F measurement 2 Insert the cold terminal free end of thermocouple in TEMP socket and put the working terminal temperature measuring end of thermocouple on the surface or
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