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Summary of Contents for KJ KJ39E
- Page 1 KJ39E Digital Multimeter Operation Manual...
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Page 2: Unpacking Inspection
To avoid electric shock or personal injury, read the “ Safety Information” and rules for safe operation carefully before using the Meter. Digital Multimeter Model KJ39E(hereafter referred to as “the Meter”) is 3 1/2 digits with steady operations, pocket size, fashionable... -
Page 3: Safety Information
Safety Information In this manual, a “ Warning” identifies conditions and actions that pose hazards to the user, or may damage the Meter or the equipment under test. A “Note” identifies the information that user should pay attention to. This Meter complies with the standards IEC 61010-1: in pollution degree 2, overvoltage category (CAT.III 600V) and double insulation. - Page 4 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. If the value to be measured is unknown, use the maximum measurement position and reduce the range step by step until a satisfactory reading is obtained.
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Page 5: International Electrical Symbols
When using the test leads, keep your fingers behind the finger guards. Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity and diode. Replace the battery as soon as the low battery indicator “ ”appears. With a low battery, the Meter might produce false readings that can lead to electric shock and personal injury. -
Page 6: The Meter Structure
DC(Direct Current). (Alternating Current). Continuity Test. 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 5. Input Terminals 6. -
Page 7: Function Description
Function description Rotary switch position Description DC voltage measurement V～ AC voltage measurement Ω Resistance measurement Diode test Continuity test DC current measurement Transistor hFE test Buttons Data hold button Backlight button Measurement Operation DC/AC Voltage Measurement To measure DC/AC voltage, connect the Meter as follows: ·Set the rotary switch to desired range V～... -
Page 8: Dc Current Measurement
Warning a) To avoid harms to you or damages to the Meter from electrical shock, do not attempt to measure voltages higher than DC /AC 600V rms, although readings may be obtained. b) When the Meter working 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. -
Page 9: Resistance Measurement
reading is obtained. b) If “1” or “-1” is shown on the LCD, it means the Meter is overloaded, then set the measuring range to higher. c) The protection of mA input terminal : Self-Healing Fuse, and 10A /250V Fast. d) When the measured current is more than or equal to 10A, the continuous measurement time is 10 seconds maximum and interval time between 2 measurements... - Page 10 all the high-voltage capacitors before measuring resistance. To measure resistance, connect the Meter as follows: ·Set the rotary switch to desired Ω range ·Connect the RED test lead into “VΩmA” input terminal and BLACK test lead into “COM” input terminal. ·Connect the test leads across with the object being measured.
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Page 11: Diode Test
steady reading when you do the resistance measurement greater than 1MΩ. e) When the measurement has been completed, disconnect the connection between the testing leads and the circuit under test and remove testing leads from the input terminals. Diode Test Warning To avoid damages to the Meter or to the devices under test, disconnect circuit power and discharge... -
Page 12: Continuity Test
working in diode test mode. b) If diode is open or connected by reverse the display will show “1”. c) In a circuit, a good diode should still 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 pathways between the probe tips. - Page 13 50Ω to 100Ω. The buzzer does not sound if the resistance of a circuit under test is higher than 100Ω. ·Press HOLD button if need. Warning a) Do not apply any voltage to the input when the Meter is working in contonuity test mode. b) The open voltage of input terminal is approx.
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Page 14: General Specifications
· Press HOLD button to enter and exit the Hold mode in any measuring mode. When it is active, the display value will be freezed on display until it be released. Backlight When moment press the Backlight button, the backlight will turn on and last about 15 seconds than auto turn off. -
Page 15: Accurate Specifications
· Safety certificate： · mA input protection: Self-Healing Fuse · EMC consider: the accuracy is need to add 5% of full scale as the final accuracy when the strength of RF field less than1V/m and not specified when it more than 1V/m. - Page 16 AC Voltage Range Resolution Accuracy 200V 100mV ±(1.2%+5) 600V Input impedance：450KΩ approx. Overload protection:：600V rms Frequency response ： 40Hz ～ 400Hz （ not specified for ≥400Hz） Display：effective value of sine wave (mean value response) DC Current Range Resolution Accuracy 200μA 0.1μA 1μA ±(1.8%+3)
- Page 17 greater than 15 minutes. Resistance Range Resolution Accuracy 200Ω 0.1Ω 2KΩ 1Ω ±(1.0%+5) 20KΩ 10Ω 200KΩ 100Ω 2MΩ 1KΩ ±(2.0%+5) Overload protection：250Vrms Note: At 200Ω 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.
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Page 18: Maintenance
Range Resolution Description open voltage is approx. 3V. The buzzer sounds if the resistance of a circuit under test is less than or equal to 50Ω. The buzzer may or may not sound if the 1Ω resistance of a circuit under test is between 50Ω... - Page 19 get service. ·Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. The Meter use the self-healing fuse for uA / mA current measurement protecting component, so it not need to replace it. If it shows no input for mA or uA as a trouble, you’d to check if the input is too great and out of the range, if that, you can try again after some time.
- Page 20 · Rejoin the back cover and the front cover, and reinstall the screw. - End - *** This operating manual subject to change without notice. ***...
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