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UYIGAO 19B User Manual

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Summary of Contents for UYIGAO 19B

  • Page 3: Table Of Contents

    4.12 Transistor Measurement ……………25 4.13 Capacitance Measurement ……………25 4.14 Frequency/Duty Ratio Measurement ……………26 4.15 Temperature Measurement ……………28 4.16 Non-contact voltage Measurement ……………29 （NCV)） ……………29 Maintenance 5.1 Battery Replacement ……………29 5.2 Probes Replacement ……………30 Appendix ……………30 ……………31 Warranty Instructions...
  • Page 4 This device is a 3 5/6 digital multimeter with stable performance and reliable quality. The meter adopts LCD display screen with clear reading, intuitive display and convenient operation. It can be used to measure DC voltage, AC voltage sine RMS, DC current, AC current sine RMS, resistance, capacitance, frequency, duty ratio, diode on/off test, symbol unit data hold and automatic power off functions etc.
  • Page 5 With appropriate use and protection, the multimeter will give you a satisfactory service. 1.1 Preparations 1.1.1 When using the meter, the user must follow the standard safety rules： - General anti-shock protection - Avoid misuse of the meter. 1.1.2 After receive the meter, please check if it is damaged in transit.
  • Page 6 measurement function, please remove the test leads from the circuit which is under test. 1.2.7 Do not measure resistors, capacitors, diodes and on/off when they are charged. 1.2.8 Be careful to avoid the instrument connected to the voltage power when measuring range under current, resistance, capacitance, diode and circuit on/off.
  • Page 7 1.4 Maintenance 1.4.1 Do not attempt to open the bottom case to adjust or repair the meter, this operation can only be performed by technicians who fully understand the dangers of the instrument and electric shock. 1.4.2 Before opening the instrument case or battery cover, please remove the test leads from the circuit under test.
  • Page 8 - Meter has a reading hold function. - Meter with automatic shutdown function. 2.1 Components ⑴ Flashlight ⑵ NCV and buzzer indicator ⑶ LCD Monitor ⑷ Transistor test socket ⑸ Function selection button（SEL） ⑹ Switch ⑺ 20A High current input jack ⑻...
  • Page 11 AC、DC ALTERNATING CURRENT 、 Direct Current Diode、On/off 、 Automatic Measuring Range Mode AUTO Non-Contact AC Voltage Detect Transistor test status Temperature measurement status ℃ ℃ BATTERY WEEK Data hold Percentage (duty ratio) Millivolt, volt (voltage) mV, V Ampere (current) NaFala, micro-Farah, millifara nF,μF，mF Ohm, kilo-ohm, megaohm (resistance) Ω, kΩ, MΩ...
  • Page 12 Fuse protection：uA、mA Gear fuse:FF630mA/250V; A Gear fuse: FF20A/250V Working height：Max 2000m Monitor：6000 counts LCD monitor. Maximum display value：5999 digits Polarity indication: automatic indication, '-' indicates negative polarity. Over-range display: '0L' or '-0L'. Sampling time: about 3 times / second Unit display: a function, power unit display. Automatic power off time: about 15 minutes when no signal Power: DC 9V...
  • Page 13 accurately, but it may display a reading between 1 and 50 if the measured signal is not being input (in the ac voltage range, at the input) on the AC function gear. These deviations from the readings are normal. They do not affect the multimeter's accuracy of measuring AC power within the specified measurement range.
  • Page 14 3.2.3 AC Voltage Measuring Resolution Accuracy Range 600mV 0.1mV （ 1.2% readings + 5 digits） 0.001V ±（0.8% readings + 3 digits） 0.01V 600V 0.1V ±（1.0% readings + 10 digits） 750V - Input resistance：10MΩ - Maximum input voltage：750V AC （RMS）or 1000V - Frequency range: 40 ~ 1000Hz True RMS Note：...
  • Page 15 600mA 0.1mA ±（1.0% readings + 3 digits） 0.01A ±（2.5% readings +10 digits） - Overload Protection：mA measuring range fuse （FF630mA/250V) 20A measuring range fuse（FF20A/250V) -Maximum input current ：mA gear：600mA DC or AC RMS； -20A gear：20A DC or AC RMS； When the measured current is greater than 5A, the continuous measurement time is not longer than 15 seconds, after measuring the current measurement to be stopped for more than 1 minute.
  • Page 16 （FF630mA/250V),20A measuring range fuse （FF20A/250V) - Maximum input current ：mA gear：600mA DC or AC RMS； 20A gear：20A DC or AC RMS； When the measured current is greater than 5A, the continuous measurement time is not longer than 15 seconds, after measuring the current measurement to be stopped for more than 1 minute.
  • Page 17 0.1 – 99.9% 0.1% ± 3.0% - Frequency response：10 ~ 10MHz -Input voltage range: 200mV ~ 10V ac (with the measured frequency increases, the input voltage should also increase) - Maximum input voltage: 250V AC (RMS) 3.2.8 Resistance Measuring Resolution Accuracy Range 600Ω...
  • Page 18 1) If the resistance of the circuit to be tested is less than50Ω，buzzer attached to the instrument may sound. If less than 10Ω, the buzzer must sound. 2) When the built-in buzzer sounds and the indicator lights on, 0. 1Ω when the measured resistance is about40Ω~60Ω, the rightmost two indicator lights;...
  • Page 19 The display reads the Base current hFE approximation approx 10uA； （0~1000） Vce approx 2.8V 3.2.12 Capacitamce Measuring Range Resolution Accuracy 9.999nF 0.001nF 99.99nF 0.01nF 999.9nF 0.1nF ±（4.0% readings + 3 digits） 9.999μF 0.001μF 99.99μF 0.01μF 999.9μF 0.1μF 9.999mF 0.001mF ±（5.0% readings + 3 digits） 99.99mF 0.01mF Not calibrated...
  • Page 20 The displayed value of the device will be locked, and then to press the key again to release the reading hold. 4.2 Function Key 1) In diode, buzzer gear, press "SEL" key, the meter will switch between on-off detection and diode two-file. 2) In frequency and duty gear, press "SEL"...
  • Page 21 Note： When battery voltage ≤7.5V，LCD display“ ” （Under-voltage）symbol. But under the condition of backlight and flashlight，when battery voltage ≥7.5V，the high working current will decrease the battery voltage， “ ” symbol may appears（when “ ” appears，the measuring result may not be accurate） ，It is no necessary to replace batteries.
  • Page 22 voltage is greater than 750V, the DC When the voltage is higher than 1000V and the AC / DC current is greater than 20A, the buzzer will continue to sound as over-range warning. The buzzer will continuously emit 5 sounds about 1 minute before the auto-off and the buzzer will give a long sound warning;...
  • Page 23 meter. Do not apply voltages in excess of 1000VAC or 750VAC between the common terminal and earth ground in case of electric shock or damage to the meter. The meter's DC voltage range is：600.0mV、6.000V、 60.00V、600.0V、1000V AC voltage range is： 6.000V、 60.00V、 600.0V、 750V 1）Set the switch to DC voltage position。or AC voltage gear.
  • Page 24 or 1000V DC. 3）If the meter measured readings over 1000V DC or 750V RMS AC，it will be issued a "beep" alarm sound. 4.8 AC & DC Current Measurement Warning Risk of electric shock Do not attempt to make current measurements on the circuit when the voltage between the open circuit voltage and ground exceeds 250V.
  • Page 25 between 600mA and 20A, connect the red test lead to the 20A input socket. 3) Disconnect the circuit under test. Connect the black test lead to the disconnected (lower voltage) end of the circuit, and connect the red test lead to the other end of the disconnected circuit (which has a higher voltage).
  • Page 26 4) Read the measured resistance value from the LCD. Note： 1) The measured resistance on the circuit will usually differ from the resistance rating. 2) In the measurement of low resistance, in order to measure accurately, please short-circuit the two test leads, read out the resistance of the test leads short-circuit, after measuring the resistance to be measured to be subtracted from the resistance.
  • Page 27 4) The meter shows the approximate forward voltage drop of the diode under test. If the polarity of the test leads is reversed, the meter will display "OL." In the circuit, the normal diode should produce a forward voltage drop of 0.5V to 0.8V; however, the reverse bias reading will depend on the change in resistance of the other channels between the two test leads...

  • Page 28: Transistor Measurement

    rightmost four Only the light will be lit; when the measured resistance is less than 5Ω, all six lights will be lit. Note： If the test leads are open or the measured line resistance is greater than 600Ω，the display shows "0L". 4.12 Transistor Measurement Risk of electric shock.

  • Page 29: Frequency/Duty Ratio Measurement

    The meter’s capacitance range is: 60.00nF、600.0nF、 6.000uF、60.00 uF、600.0 uF、6mF、100mF。 1）Turn the rotary switch to 100mF. 2）Insert the black test lead into the COM jack, and the red test lead into the jack. 3) After the capacitor is fully discharged, connect the other end of the red and black test leads to the two ends of the capacitor under test.
  • Page 30 range. 2）Connect the red and black test leads to the COM and input jack. 3) Press "SEL" key to switch to frequency measurement status 4) Use the other two ends of the test pen and connect it to the voltage source or both ends of the load for measurement.

  • Page 31: Temperature Measurement

    2) Connect the red and black test leads to the COM and jack respectively. 3) Connect the other two ends of the red and black test leads to the signal source or both ends of the load. 4) Read the measured frequency value from the LCD. 5) Press "SEL"...

  • Page 32: Non-Contact Voltage Measurement

    K-type thermocouple distribution of the highest measurement temperature of 250 4.16 Non-Contact Voltage Measurement（NCV) Set the function range switch to the NCV range position. At this time, the instrument displays "NCV" and "----" symbols, and the top of the instrument is close to the object to be detected such as the mains phase line, the power switch and the outlet.

  • Page 33: Probes Replacement

    meter's display. To avoid electric shock or personal injury, shut off the machine and check that the test pen has been disconnected from the measurement circuit before opening the battery cover to replace the new battery. Please follow the steps below to replace the battery 1) Turn off the meter power.

  • Page 34: Warranty Instructions

    User Manual 1 pc 2） Temperature probe 1 pair 3） Battery 6F22 1 pc 4） ﹡The contents of this manual are subject to change without notice﹡ ﹡The contents of this manual are considered correct. Please contact the manufacturer if the user finds errors, omissions, etc.﹡...
  • Page 35 (4) Within the warranty period time, we will charge maintenance cost according the following situations: *Users improper use of device or damage caused by accident leads to damaged components and burned board. *The device has been opened, inspected, or modified by those who are not the company professionals.
  • Page 36 20180120-19B...

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