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User Manual
All rights reserved.
Specifications are subject to change without notice.

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Summary of Contents for Aneng SZ18

  • Page 1 User Manual All rights reserved. Specifications are subject to change without notice.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY Customers enjoy one-year warranty from the date of purchase. This warranty does not cover fuses, disposable batteries, damage from misuse accident, neglect, alteration, contamination, or abnormal conditions of operation or handling, including failures caused by use outside of the product's specifications, or normal wear and tear of mechanical components.
  • Page 3: Table Of Contents

    Table of Contents Page Introduction............1 Safety Information..........1 Instrument Overview..........3 LCD Display...........3 Function Buttons..........5 Rotary Buttons..........6 Input Terminals..........8 Measurements Instruction........9 Measure AC/DC Voltage.........9 Measure AC/DC Current.........9 Measure Resistance........10 Test Diodes and Continuity......10 Measure Capacitance........11 Measure Frequency and Duty Cycle..... Measure Temperature........13 Test NCV…………..…………………………13...
  • Page 4 V.F.C test.............14 Square wave test..........14 Maintenance............15 Clean the Product.........15 Replace the Batteries........15 Replace the Fuses........16 Specifications.............17 General Specifications.........17 Mechanical Specifications......17 Environmental Specifications.......17 Electrical Specifications........18...
  • Page 5: Introduction

    Introduction This product is a 9999 counts true RMS auto- ranging digital multimeter. It is operated all by buttons with a triple display. Safety Information To avoid possible electrical shock, fire, or personal injury, please read all safety information before you use the product. Please use the product only as specified, or the protection supplied by the product can be compromised.
  • Page 6 • Keep fingers behind the finger guards on the probes. • When the product has already been connected to the line being measured, do NOT touch the input terminal that is not in service. • Disconnect the test leads from the circuit before changing the mode.
  • Page 7: Instrument Overview

    Instrument Overview LCD Display Auto range. The product selects ① the range with the best resolution. Manual range. The user selects ② the range. ③ Capacitance test. (Farad) ④ Relative mode. ⑤ Diode test. ⑥ Continuity test. ⑦ Duty cycle test. ⑧...
  • Page 8 ⑪ Frequency test. (Hertz) ⑫ Temperature test. (Celsius) ⑬ Temperature test. (Fahrenheit) ⑭ Analog bar graph. ⑮ Resistance test. (Ohm) ⑯ Current test. (Ampere) ⑰ Voltage test. (Volt) ⑱ Primary measurement display. product measures both ⑲ sinusoidal and nonsinusoidal ac waveforms accurately.
  • Page 9: Function Buttons

    Function Buttons ② ③ ① ④ Short press to switch among functions. ① Long press to enter in V.F.C function. Short press to change range. Push for more than 2 seconds to enter the relative mode. The product will store the present ②...
  • Page 10: Rotary Buttons

    Rotary button Turn off the product at this position. • The product automatically powers off after 15 minutes of inactivity. • The built-in beeper beeps 5 times 1 minute before auto power off. • To restart the product from auto power off, press the SELECT button or turn the rotary switch back to the OFF position and then...
  • Page 11 AC voltage ≤750V DC voltage ≤1000V Frequency ≥10V,1~100KHz Duty cycle:1%~99% V.F.C AC voltage ≤99.99mV DC voltage ≤99.99mV Frequency ≤10V,1~10MHz Duty cycle :1%~99% Temperature:-20~1000°C (-4~1832)℉ Resistance:≤99.99MΩ Continuity:beeper will beep when resistance less than 50 Ω Diode test. Displays above 3V Capacitance:≤9.999mF Square wave:...
  • Page 12: Input Terminals

    Input Terminals Input terminal AC/DC current measurements to 9.999A. Input terminal AC/DC current μA/mA measurements to 99.99mA. Common (return) terminal measurements. Input terminal for the measurements of: 1. Diode 2. Continuity 3. Square wave 4. Temperature 5. AC/DC voltage 6. Resistance 7.
  • Page 13: Measurements Instruction

    Measurements Instruction Measure AC/DC Voltage 1. Connect the black test lead to the COM Terminal and the red lead to the Terminal. 2. To measure voltage under 99.99mV, turn the rotary to .To measure voltage higher than 99.99mV, turn the rotary to , press SELECT to turn to AC voltage test mode.
  • Page 14: Measure Resistance

    *Do not measure current that exceeds the extremes as indicated in the Specifications. *Use the AmA Terminal when you are measuring an unknown current. Then switch to the μA Terminal if necessary. *Do not input voltage at this setting. Measure Resistance 1.
  • Page 15: Measure Capacitance

    4. To test diodes, connect the red probe to the anode side and the black probe to the cathode side of the diode being tested. Then read the forward bias voltage value on the display. If the polarity of the test leads is reversed with diode polarity or the diode is broken, the display reading shows “...
  • Page 16: Measure Frequency And Duty Cycle

    Measure Frequency and Duty Cycle 1. Connect the black test lead to the COM Terminal and the red lead to the Terminal; 2. Turn the rotary switch to , press SELECT to frequency test function (≥10V,1~100KHz); or turn the rotary switch to , press SELECT to frequency test function (≤10V,1~5MHz);...
  • Page 17: Measure Temperature

    Measure Temperature 1. Connect the black test lead to the COM Terminal and the red lead to the Terminal; , press “SELECT” to 2. Turn the rotary to the temperature Mode; Now the main display will show Celsius and the vice display will show Fahrenheit;...
  • Page 18: Test

    Measure V.F.C 1. Connect the black test lead to the COM Terminal and the red lead to the Terminal; 2. Turn the rotary to , long press to enter V.F.C mode, the screen will show voltage when put the test leads at the correct circuit. Measure square wave 1.
  • Page 19: Maintenance

    Maintenance Beyond replacing batteries and fuses, do not attempt to repair or service the product unless you are qualified to do so and have the relevant calibration, performance test, service instructions. Clean the Product Wipe the product with a damp cloth and mild detergent.
  • Page 20: Replace The Fuses

    2. Loosen the screw on the battery door and remove the battery door. 3. Replace the used batteries with new batteries of the same type. 4. Place the battery door back and fasten the screw. Replace the Fuses When a fuse is blown or do not work properly, it shall be replaced as below: 1.
  • Page 21: Specifications

    Specifications General Specifications 9999 Counts Display(LCD) Ranging Auto/Manual Material ABS+TPE Update Rate 3 Times/Second Ture RMS √ Data Hold √ Backlight √ Low Battery Indication √ Auto Power Off √ Mechanical Specifications 147*76*37mm Dimension Weight 191g(without batteries) Battery Type 1.5V AAA Battery * 3 Warranty One year Environmental Specifications...
  • Page 22: Electrical Specifications

    Electrical Specifications Function Range Resolution Accuracy 999.9mV 0.1mV 9.999V 0.001V DC Voltage 99.99V 0.01V ±(0.5%+3) 999.9V 0.1V 9.999mV 0.001mV DC Voltage (mV) 99.99mV 0.01mV 999.9mV 0.1mV 9.999V 0.001V AC Voltage 99.99V 0.01V ±(1.0%+3) 750.0V 0.1V 9.999mV 0.001mV AC Voltage (mV) 99.99mV 0.01mV *Frequency response of ACV: 40Hz-1kHz...
  • Page 23 Function Range Resolution Accuracy 9.999A 0.001A DC Current (A/mA) 999.9mA 0.1mA 99.99mA 0.01mA ±(1.0%+3) 9.999mA 0.001mA DC Current (μA/mA) 99.99μA 0.01μA 999.9μA 0.1μA 9.999A 0.001A AC Current (A/mA) 999.9mA 0.1mA 99.99mA 0.01mA ±(1.2%+3) 9.999mA 0.001mA AC Current (μA/mA) 99.99μA 0.01μA 999.9μA 0.1μA Frequency response of AC Current: 40Hz-1kHz...
  • Page 24 Function Range Resolution Accuracy 99.99Ω 0.01Ω ±(1.0%+3) 999.9Ω 0.1Ω 9.999kΩ 0.001kΩ ±(0.5%+3) Resistance 99.99kΩ 0.01kΩ 999.9kΩ 0.1kΩ 9.999MΩ 0.001MΩ ±(1.5%+3) 99.99MΩ 0.01MΩ ±(3.0%+5) 9.999nF 0.001nF ±(5.0%+20) 99.99nF 0.01nF 999.9nF 0.1nF Capacitance 9.999μF 0.001μF ±(2.0%+5) 99.99μF 0.01μF 999.9μF 0.1μF 9.999mF 0.001mF ±(5.0%+5)
  • Page 25 Function Range Resolution Accuracy 9.999Hz 0.001Hz 99.99Hz 0.01Hz Frequency 999.9Hz 0.1Hz (Measures only to 9.999kHz 0.001kHz ±(0.1%+2) 100kHz under the 99.99kHz 0.01kHz ACV setting) 999.9kHz 0.1kHz 5.000MHz 0.001MHz Duty Cycle 1%~99% 0.1% ±(0.1%+2) 1℃ (-20~1000)℃ Temperature ±(2.5%+5) 1℉ (-4~1832)℉ Diode √...

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