KAIWEETS HT118A Digital Multimeter

User Manual

Contents

Safety Instructions

The instrument is designed according to the requirements of the international electrical safety standards IEC61010-1 for the safety requirements of the electronic testing instruments. The design and manufacture of instruments strictly comply with the requirements of IEC61010-1 CAT III 1000V over-voltage safety standards and pollution level 2.

Warning: To avoid possible electric shock or personal injury and other safety accidents, please abide by the following specifications:

Product Description

Symbol Meaning

KAIWEETS HT118A TRMS 6000 Counts Digital Multimeter

Multimeter Features

Diagram showing the front of the KAIWEETS HT118A digital multimeter with numbered features.

Measurement Operation

DC/AC voltage measurement

A Don't use it to test DC 250V, the instrument may be damaged. Always test known voltage with the meter before use to confirm the instrument function is intact.

  1. Turn the rotary switch to "V" and select DC/AC voltage function by "FUNC." key.
  2. Insert the red lead in "VΩmA" terminal, insert the black lead in "COM" terminal.
  3. Connect the test leads to the source or load to be measured.
  4. Read LCD display, when measuring AC voltage the frequency is displayed simultaneously.
Diagram showing DC and AC voltage measurement setup with the multimeter.

DC/AC voltage measurement mV

A Don't use it to test DC 250V, the instrument may be damaged. Always test known voltage with the meter before use to confirm the instrument function is intact.

  1. Turn the rotary switch to "mV" and select DC/AC voltage function by "FUNC." key.
  2. Insert the red lead in "VΩmA" terminal, insert the black lead in "COM" terminal.
  3. Connect the test leads to the source or load to be measured.
  4. Read LCD display, when measuring AC voltage the frequency is displayed simultaneously.
Diagram showing DC and AC voltage measurement setup for mV range with the multimeter.

Frequency/Duty measurement (Hz%)

A The voltage above 10V can't be measured, otherwise, the instrument may be damaged.

  1. Turn the rotary switch to "Hz%".
  2. Insert the red lead in "VΩmA" terminal, insert the black lead in "COM" terminal.
  3. Connect the test leads to the source or circuit in parallel to be measured, measure the frequency and duty.
  4. Read the measurement result on the screen.
Diagram showing frequency/duty measurement setup with the multimeter.

Resistance / Continuity / Diode Measurement

A When measuring voltage on the line, disconnect the power supply and discharge all the high-voltage capacitors. Otherwise, the instrument may be damaged by shock.

  1. Turn the rotary switch to "Ω" and select Resistance / Continuity / Diode measurement function by "FUNC."
  2. Insert the red lead in "VΩmA" terminal, insert the black probe in "COM" terminal.
  3. Connect the test leads to the source or circuit in parallel or diode to be measured.
  4. Read the measurement result on the screen.
Diagram showing resistance, continuity, and diode measurement setup with the multimeter.

Capacitance Measurement

A When measuring Capacitance on the line, disconnect the power supply and discharge all the high-voltage capacitors. Otherwise, the instrument may be damaged and may be struck by electric shocks.

  1. Turn the rotary switch to "F".
  2. Insert the red lead into "VΩmA" terminal, insert the black lead into "COM" terminal.
  3. Connect the probe to the measured circuit or Capacitance, measure the resistance.
  4. Read the measurement result on the screen.
Diagram showing capacitance measurement setup with the multimeter.

Temperature Measurement

A Don't touch the charged object when measuring temperature.

  1. Turn the rotary switch to "°C/°F".
  2. Insert the K-Type thermocouple into the meter. The thermocouple's positive (red) is inserted into the "VΩmA" terminal, insert the black (negative) into the "COM" input.
  3. Carefully touch the end of the thermocouple to the object being measured. Wait for the temperature reading to settle, then record the result from the LCD display.
Diagram showing temperature measurement setup with the multimeter and thermocouple.

DC/AC current measurement

A To avoid damaging the instrument or equipment, check the fuse before measurement. Ensure that the measured current does not exceed the rated maximum current; use the correct input.

  1. Turn the rotary switch to "A" or "mA" and select AC or DC current function by "FUNC." key.
  2. Insert the red lead in "mA" terminal or "10A" terminal, insert the black lead in "COM" terminal.
  3. Disconnect the power of the tested circuit, connect the meter to the circuit under test, then turn on the circuit power supply.
  4. Read the measurement result on the screen. When measuring AC current, the frequency is displayed on LCD simultaneously.
Diagram showing DC/AC current measurement setup with the multimeter.

NCV Test

A In order to avoid possible accidents such as electric shock or personal injury, please follow the safety regulations.

  1. Turn the rotary switch to "NCV" and Switch to test NCV function by "FUNC." key. Meter will display "LIVE".
  2. The NCV probe generally approaches the detection point.
  3. When the meter senses weak AC signals, the green indicator lights up and meter beeps slowly.
  4. When the meter senses strong AC signals, the red indicator lights up and meter beeps fastly.
Diagram showing NCV test operation with the multimeter.

Live Test

A In order to avoid possible accidents such as electric shock or personal injury, please follow the safety regulations.

  1. Turn the rotary switch to "LIVE" and Switch to test NCV function by "FUNC." key. Meter will display "LIVE".
  2. Insert the red lead to the "LIVE" terminal, then the black probe is in "COM" terminal.
  3. When the meter senses weak AC signals, the green indicator lights up and meter beeps slowly.
  4. When the meter senses strong AC signals, the red indicator lights up and meter beeps fastly.
Diagram showing Live Test operation with the multimeter.

Maintenance

Clean

If there's dust on the terminal or the terminal is wet, it may cause measurement error. Please clean the instrument according to the steps below:

  1. Switch off the power supply of the instrument and remove the test probe.
  2. Turn over the instrument and shake out the dust accumulated in the input terminal. Wipe the outer cabinet with a damp cloth and mild detergent, do not use corrosive or abrasive solvents. Wipe contacts in each input terminal with a clean cotton swabs soaked in alcohol.

Replace the Fuse

If the fuse is damaged due to overload protection, the instrument may be damaged. If the fuse is damaged due to overload protection, the instrument may be damaged.

  1. Turn off the power supply of the instrument, and remove the probe on the instrument.
  2. Unscrew driver to unscrew screws fixing the back cover, and remove the back cover.
  3. Remove the burnt fuse, replace with new fuse of the same specifications, and install back cover, fix and lock it with screws.
Diagram showing how to replace the fuse in the multimeter.

General Specifications

Display Measurements 6000 counts, True - RMS
Safety / Compliances CATII 1000V CATIII 600V
Input Impedance 10MΩ
Fuse protection mA F600mA/250V Fuse
10A F10A/250V Fuse
Measurement Speed 3 times per second
Range Auto
Current 60mA, 10A AAA Batteries (included)
Temperature Operating: 0°C ~ 40°C, <45% RH
Storage: -10°C ~ 60°C, <70% RH
Humidity 10°C non condensing

Accuracy Specifications

The accuracy applies within one year after the calibration. Reference condition: the environment temperature 18°C to 28°C, the relative humidity is no more than 80%.

Accuracy: ± (% reading + digit)

Voltage Range Resolution Accuracy Input Impedance Maximum Input Voltage
DC Voltage 600mV 0.1mV ±(1.0%+3) 10MΩ 1000V DC
6V 0.001V ±(0.5%+3)
600V 0.1V ±(0.5%+3)
AC Voltage 600mV 0.1mV ±(1.5%+5) (reading=5) 10MΩ 750V AC
6V 0.001V ±(1.5%+5) (reading=5)
600V 0.1V ±(1.5%+5) (reading=5)
Current Range Resolution Accuracy Overload protection Maximum input current
DC Current 60mA 0.01mA ±(1.2%+5) F600mA/250V Fuse 600mA
600mA 0.1mA ±(1.2%+5)
10A 0.01A ±(2.0%+5)
AC Current 60mA 0.01mA ±(1.5%+5) (reading=5) F10A/250V Fuse 10A
600mA 0.1mA ±(1.5%+5) (reading=5)
10A 0.01A ±(2.0%+5) (reading=5)
Resistance Range Resolution Accuracy Overload protection
600Ω 0.1Ω ±(1.0%+3) 250V
6kΩ ±(1.0%+3)
60kΩ 10Ω ±(1.0%+3)
600kΩ 100Ω ±(1.0%+3)
6MΩ 1kΩ ±(1.5%+5)
60MΩ 10kΩ ±(1.5%+5)
Capacitance Range Resolution Accuracy Overload protection
6nF 1nF ±(5%+10) 250V
60nF 10nF ±(5%+10)
600nF 100nF ±(5%+10)
6μF 1μF ±(5%+10)
60μF 10μF ±(5%+10)
600μF 100μF ±(5%+10)
6mF 1mF ±(5%+10)

Note: When measuring large current, continuous measurement don't than 15 seconds.

Three Year Warranty

KAIWEETS warrants its products, without charge, for any defects in materials or workmanship for three years from the date of purchase provided that proof of purchase is produced.

Service/repairs have not been attempted by unauthorized persons;

The product has been subject to fair wear and tear;

The product has not been misused.

Defective products will be repaired or replaced, free of charge or at our discretion, if sent together with proof of purchase to our authorized distributor(s). For further detail of warranty coverage and warranty repair information, send email to support@Kaiweets.com.

Models: KAIWEETS, True-RMS, HT118A, Digital, Multimeter

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