KJ KJ39E, Operation Manual

Page 1: ...KJ39E Digital Multimeter Operation Manual...

Page 2: ...fashionable structure and highly reliable hand held measuring instrument The Meter uses large scale of integrated circuit with double integrated A D converter as its core and has full range overload p...

Page 3: ...Use the Meter only as specified in this operating manual otherwise the protection provided by the Meter may be impaired Warning To avoid possible electric shock or personal injury and to avoid possibl...

Page 4: ...e placed in the right position and no any changeover of range shall be made during measurement is conducted to prevent damage of the Meter z Do not carry out the measurement when the Meter s cover is...

Page 5: ...ircuit of the Meter shall not be altered at will to avoid damage of the Meter and any accident z Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing No abrasi...

Page 6: ...ing Current Warning Refer to the Operating Manual Conforms to Standards of European Union The Meter Structure see figure 1 1 LCD Display 2 Backlight button 3 Rotary Switch 4 Transistor hFE test socket...

Page 7: ...t button Measurement Operation DC AC Voltage Measurement To measure DC AC voltage connect the Meter as follows Set the rotary switch to desired or V range Connect the RED test lead into V mA input ter...

Page 8: ...nect the connection between the testing leads and the circuit under test and remove testing leads from the input terminals DC current Measurement To measure DC current connect the Meter as follows Set...

Page 9: ...me between 2 measurements greater than 15 minutes e Remember to cut off the power supply of the circuit be measured before connect it f Do not apply any voltage to the input when the Meter is working...

Page 10: ...orking in resistance measuring mode b If resistance of the circuit or resistor be measured is open or higher than the range be selected the display will show 1 c For low resistance measurement it mayb...

Page 11: ...nd discharge all the high voltage capacitors before testing the diode in circuit To do diode test connect the Meter as follows Set the rotary switch to range Connect the RED test lead into V mA input...

Page 12: ...rom the input terminals Continuity Test Warning To avoid damages to the Meter or to the devices under test disconnect circuit power and discharge all the high voltage capacitors before doing continuit...

Page 13: ...eted disconnect the connection between the testing leads and the circuit under test and remove testing leads from the input terminals hFE Measurement Warning To avoid damages to the Meter or to the de...

Page 14: ...Display 3 1 2 digits LCD display Maximum display 1999 Polarity Auto Polarity Overloading Display 1 or 1 Low battery indicator display Sampling rate 2 3 times second Range mode Manual range Power 9V B...

Page 15: ...pecified when it more than 1V m Accurate Specifications Accuracy a reading b digits guarantee for 1 year Operating temperature 23 5 Relative humidity 75 R H Temperature coefficient 0 1x specified accu...

Page 16: ...of sine wave mean value response DC Current Range Resolution Accuracy 200 A 0 1 A 2mA 1 A 20mA 10 A 200mA 0 1mA 1 8 3 10A 10mA 2 5 Overload protection mA range Self healing fuse 10A range 10A 250V Fas...

Page 17: ...At 200 range as a tip you can short the test leads firstly and record down the resistance then subtract it from the measuring value to obtain the more accurate result Diode test Range Resolution Desc...

Page 18: ...sound if the resistance of a circuit under test is higher than 70 Transistor hFE Range Test condition Description hFE Ibo is about 10uA Vce about 3 0V Can test NPN or PNP type transistor display rang...

Page 19: ...g the Battery 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 Make sure the test leads are d...

Page 20: ...19 Rejoin the back cover and the front cover and reinstall the screw End This operating manual subject to change without notice...