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Aktakom AMM-4189 User Manual

True rms multimeter & oscilloscope
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TRUE RMS MULTIMETER& OSCILLOSCOPE
AMM-4189
User's Manual
www.tmatlantic.com

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  • Page 1 TRUE RMS MULTIMETER& OSCILLOSCOPE AMM-4189 User’s Manual www.tmatlantic.com...

  • Page 2: Table Of Contents

    Contents Contents True RMS Multimeter ....................... 1.Introduction........................2.Safety..........................3.Safety Instructions......................4.Feature .......................... Measurement and Setup....................6.General Specification s....................7.Specifications........................ Oscilloscope Section ....................1.Introduction........................2.Function and Operation....................3.Examples........................4.Fault Processing......................Appendix 1:Daily maintenance..................Appendix 2:Specifications....................Meterbox User’s Guide ................... 1.Meter Operation......................2.Meter Connection......................

  • Page 3: True Rms Multimeter

    True RMS Multimeter Please read this manual before switching the unit on. Important safety information inside. www.tmatlantic.com www.cem-instruments.com...

  • Page 4: Introduction

    True RMS Multimeter 1.Introduction Professional True RMS Industrial D igital Multimeter with osci l loscope functions and TFT color LCD display ,providing fast A/D conver ting sampling time, high accuracy , built-in datalogging and Trend Capture feactures. It can trace any interrupted problems of the equipments and watch on without person.

  • Page 5: Safety Instructions

    True RMS Multimeter OVERVOLTAGE CATEGORY II Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from the fixed installation. Note – Examples include household, office, and laboratory appliances. OVERVOLTAGE CATEGORY III Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations. Note –...

  • Page 6: Feature

    True RMS Multimeter 3-7.NEVER operate the meter unless the back cover and the battery and fuse covers are in place and fastened securely. If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. 4.Feature 4-1.Understanding the Push Buttons The 12 push buttons on the front of the Meter...

  • Page 7: Understanding The Display

    True RMS Multimeter 4-2.Understanding the Display 13:17 - 0 0 0 0 8 03/26/11 Auto Range 0 0005 23.2 MENU SAVE REL,% SETUP .Soft key labels Indicates the function of the button just below the displayed label. .Bar graph Analog display of the input signal(See the "Bar Graph" section for more information). .Minus sign Indicates a negative reading.
  • Page 8 True RMS Multimeter 4-4.Page Area The page area of the display is where the main meter content is displayed. The primary display (upper half of the page area) is where the most important value of the selected function is shown. The secondary display contains the bar graph and values that may be measured in addition to the primary function value.

  • Page 9: Measurement And Setup

    True RMS Multimeter 5. Measurement and Setup 5-1.DC Voltage Measurements CAUTION: Do not measure DC voltages if a motor on the circuit is being switched ON or OFF. Large voltage surges may occur that can damage the meter. 1 Set the function switch to the green VDC DT-9989 position.
  • Page 10 True RMS Multimeter 5-2.AC Voltage Measurements WARNING: Risk of Electrocution. The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the contacts are recessed deep in the outlets. As a result, the reading may show 0 volts when the outlet actually has voltage on it. Make sure the probe tips are touching the metal contacts inside the outlet before assuming that no voltage is present.
  • Page 11 True RMS Multimeter 5-3.Making dB Measurements The Meter is capable of displaying voltage as a dB value, either relative to 1 milliwatt (dBm), a reference voltage of 1 volt (dBV) or a user-selectable reference value. 1.Set the function switch to the green VAC position.
  • Page 12 True RMS Multimeter 5-5.mV Voltage Measurements CAUTION: Do not measure mV voltages if a motor on the circuit is being switched ON or OFF. Large voltage surges may occur that can damage the meter. 1.Set the function switch to the green mV position.
  • Page 13 True RMS Multimeter 5-6 Temperature Measurements 1.Set the function switch to the green DT-9989 TEMP( C or F) position. ° ° 8:10pm 06/13/07 auto range °C 100.00 2.press the soft key labeled Menu. Move the menu selector to the menu item labeled TEMP .
  • Page 14 True RMS Multimeter 5-8.Resistance Measurements WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements. Remove the batteries and unplug the line cords. 1.Set the function switch to the green Ω...
  • Page 15 True RMS Multimeter 5-9.Continuity Check WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements. Remove the batteries and unplug the line cords. 1.Set the function switch to the green DT-9989 Ω...
  • Page 16 True RMS Multimeter 5-10.Diode Test 1.Set the function switch to the green Ω CAP position. DT-9989 8:10pm 06/13/07 2.Press the soft key labeled Menu. Move the auto range 0.400 menu selector to the menu item labeled Diode. Press the soft key Diode. 3.Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jack.
  • Page 17 True RMS Multimeter 5-11.Capacitance Measurements WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements. Remove the batteries and unplug the line cords. 1.Set the rotary function switch to the green DT-9989 Ω...
  • Page 18 True RMS Multimeter 5-12.DC Current Measurements CAUTION: Do not make 20A current measurements for longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1.Insert the black test lead banana plug into the negative COM jack. μ...
  • Page 19 True RMS Multimeter 5-13.AC Current Measurements CAUTION: Do not make 10A current measurements for longer than 30 seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads. 1.Insert the black test lead banana plug into the negative COM jack. DT-9989 μ...
  • Page 20 True RMS Multimeter 5-14.Understanding Function Menus Each primary measurement function (rotary switch position) has a number of optional sub-functions or modes accessed by pressing the softkey labeled Menu (F1). A typical menu is shown in Figure. Menu selection is indicated by the filled-in black square(hereafter the menu selector) to the left of a menu item.
  • Page 21 True RMS Multimeter 5-16.Measuring AC and DC Signals The Meter is capable of displaying both AC and DC signal components (voltage or current) as two separate readings or one AC+DC(RMS) value combined. As shown in Figure , the Meter displays ac and dc combinations two ways: DC displayed over AC (DC,AC), and AC combined with dc (AC+DC).
  • Page 22 True RMS Multimeter To save the MIN MAX screen data, the MIN MAX session must be ended by pressing the softkey labeled Stop. Next, press the softkey labeled Save.A dialog box openswhere the default saved name can be selected or anothername assigned. the softkey labeled Save to store.
  • Page 23 True RMS Multimeter 5-22.Storing Individual Measurement Data For all measurement functions, a snapshot of the screen data is saved by pressing the softkey labeled Save. Edit name, then pressing the softkey labeled Save stored date. 5-23.Viewing Memory Data Viewing data stored in the Meter’s memory is performed through the save menu. Press the softkey labeled Save.
  • Page 24 True RMS Multimeter 5-25.Recording Measurement Data The Meter’s record feature collects measurement information over a user-specified duration. This collection of information is called a recording session. A recording session is made up of one or more measurement records Each record contains measurement summary information covering the duration of the record.
  • Page 25 True RMS Multimeter 5-27.Changing Meter Setup Options The Meter has a number of preset features such as date and time formats and battery save mode timeouts, and the displayed language. These variables are referred to as Meter setup options. Many setup options affect general Meter operations and are active in all functions. Others are limited toone function or group of functions.
  • Page 26 True RMS Multimeter 5-32.Using Communications ou can use the Wireless communication link and transfer the contents of a meter’s memory to a PC. Press the softkey labeled Setup to access the setup menu. Using the cursor buttons, move the menu selector next to the menu item labeled communicate and press the softkey labeled PC. press the softkey labeled open will start communications function;...
  • Page 27 True RMS Multimeter 5-37.Replacing the Fuses Referring to Figure , examine or replace the Meter's fuses as follows: 1.Turn the Meter off and remove the test leads from the terminals. 2.Remove the battery door assembly by using a standardblade screwdriver to turn the battery door screw one-half turn counterclockwise.

  • Page 28: General Specification S

    True RMS Multimeter 6.General Specification Enclosure Double molded, waterproof Shock (Drop Test) 6.5 feet (2 meters) Diode Test Test current of 0.9mA maximum, open circuit voltage 3.2V DC typical Continuity Check Audible signal will sound if the resistance is less than 25 (approx.), test current <0.35mA Ω...
  • Page 29 True RMS Multimeter μ Fuses mA, A ranges; 0.5A/1000V ceramic fast blow A range; 10A/1000V ceramic fast blow Operating Temperatur 5°C to 40°C 41°F to 104°F Storage Temperature -20°C to 60°C -4°F to 140°F Operating Humidity Max 80% up to 31°C 87°F ) decreasing linearly to 50% at...

  • Page 30: Specifications

    True RMS Multimeter 7.Specifications Function Range Resolution Accuracy DC Voltage 0.001mV 50mV (0.05% + 20) 500mV 0.01mV (0.025% + 5digits) 0.0001V (0.025% + 5digits) 0.001V (0.025% + 5digits) 500V 0.01V (0.05% + 5digits) 1000V 0.1V (0.1% + 5) [1] Add 10 counts by temperature influence. [2] Add 4 counts by temperature influence.
  • Page 31 True RMS Multimeter Function Range Resolution Accuracy μ μ DC Curren 0.01 A 0.1%+20 μ μ 5000 A 0.1 A 50mA 0.001mA 500mA 0.01mA 0.15%+20 0.001A 0.3%+20 (20A: 30 sec max with reduced accuracy) Function Range Resolution Accuracy C Curren 50 to 10000Hz μ...
  • Page 32 True RMS Multimeter Function Range Resolution Accuracy AC Voltage 5K-100K (5000+Count) 50mV 0.001mV (5.0% + 40) 500mV 0.01mV 0.0001V 0.001V (6.0% + 40) NOTE: Accuracy is stated at 18 to 28°C 65 to 83°F ) and less than 75%RH. AC switch according to the calibration of sine wave. It generally increase ±...
  • Page 33 True RMS Multimeter Function Range Resolution Accuracy Frequency 50Hz 0.001Hz ±(0.01% + 10) (electronic) 500Hz 0.01Hz 5kHz 0.0001kHz 50kHz 0.001kHz 500kHz 0.01kHz 5MHz 0.0001MHz 10MHz 0.001MHz Sensitivity: 0.8V RMS min. @ 20% to 80% duty cycle and <100kHz; 5V RMS min @ 20% to 80% duty cycle and >100kHz.

  • Page 34: Oscilloscope Section

    Oscilloscope Section Please read this manual before switching the unit on. Important safety information inside. www.tmatlantic.com www.cem-instruments.com...

  • Page 35: Introduction

    Oscilloscope Section Introduction Digital Oscilloscope, is of compact size, powerful and easily operated; TFT color LCD display, realizing its ease of use which can greatly improve customer’s work efficiency. Digital Oscilloscope performs outstandingly, powerful, affordable, with a high cost performance. Its real time sample rate is up to 50 MSa/s, can meet the market needs of high capture speed, complicated signal;...

  • Page 36: General Safety Requirements

    Oscilloscope Section General safety requirements Know about the following safety precautions to avoid personal injury, also to prevent damage generated by connection of this product with any other product. In order to avoid any potential danger, please use the product according to the regulation. Only qualified technical personnel can take the maintenance procedures.
  • Page 37 Oscilloscope Section Summary The manual introduces operation information of Digital Oscilloscope which includes the following chapters: • "Introduction"presents the front panel, user interface, function check and probe of the oscilloscope. • "Function introduction and operation" makes a detailed introduction of oscilloscope function and operation.
  • Page 38 Oscilloscope Section 1. Date and time 2. Status of current waveform windows 3. Remaining power of battery 4. Waveform display area 5. Waveform peak value 6. Signal coupling marks, preset amplitude gear 7. Waveform measured frequency 8. Preset sample rate 9.

  • Page 39: Function And Operation

    Oscilloscope Section • To avoid electric shock, don’t touch the metallic part of the probe top while connecting to voltage source. • Measured signal by the oscilloscope is taken as a reference voltage to the ground, make sure the ground terminal connect to the earth correctly, do not cause a short circuit. 1 3 2 Probe application 1.
  • Page 40 Oscilloscope Section 2 2 Connector • Connector is adopted for the connection of probe and oscilloscope, the probe and connector must be used when the measuring frequency of waveform is above 1KHz. • When measured signal is a waveform of DC or its measuring frequency is below 1KHZ, the stick of general oscilloscope can be adopted.
  • Page 41 Oscilloscope Section 2 5 Fast/slow display • When the measured signal is unstable, displayed waveform presents jumping; long-term observation may cause eye fatigue. Digital Oscilloscope offers the selection of fast/slow display function, press F3 (F/S), fast display can be switched to slow display, which can efficiently improve eye fatigue.
  • Page 42 Oscilloscope Section 2-8 1 Trigger Mode • 2 kinds of trigger mode for the oscilloscope: raising edge and falling edge. When signal voltage across trigger electrical level, raising and falling edge of input signal is adopted for triggering. • Raising edge setup: press “setup” →...
  • Page 43 Oscilloscope Section If adopt FFT (Fast Fourier Transform) mode, take following steps: 1. Set up time domain waveform • Press “AUTO” to display proper waveform. • If displayed waveform shows unsatisfactory, press “ ” and “ ” for adjustment. • Press F4 (FFT), the oscilloscope may adopt the 256 central points of time domain waveform to calculate FFT frequency spectrum.
  • Page 44 Oscilloscope Section Note: • DC component or deviation existed in signal may cause error or deviation in FFT waveform component part. Select DC coupling mode to reduce AC component. • Nyquist frequency: for waveform, of which highest value ups to F, sampling rate of 2F must be adopted to rebuild the waveform, that is also called Nyquist criteria, “F”...

  • Page 45: Display System

    Oscilloscope Section 2-12 Display System 2 12 1 Time and Date •After startup, actual time and date display at the top left corner on the interface, format: mm/dd/yy, hh/mm/ss (picture 2-10-1). •Function of the clock is supplied by the back-up battery inside of the device, which can work for 5 to 10 years, and irrelevant to the Li-ion rechargeable battery.
  • Page 46 Oscilloscope Section 4. Press F1 (V/F cursor), cursor measurement turns to voltage amplitude from frequency (cycle). Up and down cursor appears on the screen at the moment. 5. If use needs to move the cursor, press “ ”, one time for one space, press this key for more than 1 second for fast move, the cursor moves continuously in the same direction.
  • Page 47 Oscilloscope Section 1. Store the current displayed waveform into the device. •Press “HOLD” “F2(Save)” enter into “Save Operations” state “ → → → ” (select position) → “F1(Memory)”, when no store exists in the position(No store), store directly, the color may turn to purple red from green if storage succeeds.

  • Page 48: Examples

    Oscilloscope Section •Press F2 (return) under waveform displaying state, turn back to “Save Operations” state. •Press “F4 (EXIT)” in waveform displaying state, turn back to waveform displaying state. 3.Examples This chapter mainly introduces several application examples, these simplified examples focus on some main functions of the oscilloscope, and user may take it for reference to solve some actual testing problems.

  • Page 49: Fault Processing

    Oscilloscope Section 3 3 Serial Signal Measurement To measure serial signals, as UART, IIC, SPI and etc, please take following steps: 1. Take 3.1 operations as reference, preliminary observe the measured signal. 2. Press “REC” while signal transmission. 3. Press “NEXT” or “Previous” according to prompt bar on the screen to check corresponding page.
  • Page 50 Oscilloscope Section (5) Press “AUTO” to try again. 4.2 Waveform displays, but cannot stabilize. (1) Check the trigger option is correct or not. Waveform stabilizes only proper trigger mode is operated. (2) Try to change “trigger mode” to falling edge or raising edge, waveform can not stabilize in “no trigger”...

  • Page 51: Appendix 1:Daily Maintenance

    Oscilloscope Section Appendix 1:Daily maintenance While store or place the device, please don’t make LCD display surface exposed to direct sunlight for long time. Note: to avoid device or probe damage, please don’t place it in fog condition, liquid or dissolvent.

  • Page 52: Appendix 2:Specifications

    Oscilloscope Section Appendix 2:Specifications Main specification Format or note Function 3.5” color TFT-LCD; 320 X 240 pixels LCD display 15~50 V/S Fast / Slow Refresh rate 10MHz 0 - 10 MHz Bandwidth Coupling, AC, DC AC DC ， Input Ω 1000C/CA:1M +/-2% 15pF...
  • Page 53 Oscilloscope Section www.tmatlantic.com...

  • Page 54: Meterbox User's Guide

    Meterbox User’s Guide Meterbox www.tmatlantic.com...
  • Page 55 Meterbox User’s Guide Meterbox is a kind of smart mobile software for meter’s cloud computing. Using this software, the measured data can be transmitted to smart mobile via Bluetooth. Users can share the meter data with the cloud storage and cloud computing of the meters’ cloud service by a smart mobile. These can satisfy the continuous growing on-demand of business in the mobile era, and help users to achieve the functions which other meters can’t realize.

  • Page 56: Meter Operation

    Meterbox User’s Guide d. Meter Cloud Computing: Large number works of computing and storage can be accomplished in meter cloud server, and the user's business computing can be added and deleted through the network, therefore, mobile can break through the limit of software function, computing power, storage capacity to achieve the powerful calculation and storage function as a mainframe.
  • Page 57 Meterbox User’s Guide Function Selection interface will be shown after choosing the right meter. Click , (the meter enter into Bluetooth mode), Meterbox will match with Bluetooth. www.tmatlantic.com...

  • Page 58: Measurement Mode

    Meterbox User’s Guide When matching successfully, Meterbox combined with the meter to be a Cloud Meter. 3 Measurement Mode Meterbox Cloud Meter supports the following measurement mode: * Local meter measuring * Cloud meter measuring In Login interface, users click Login to enter Cloud meter measuring; while click Local to enter Local meter measuring.

  • Page 59: Connect Meter Cloud

    Meterbox User’s Guide a. Local meter measuring: When the user in an area without signal coverage (GPRS/3G/WiFi), or just want to operate in local mode, users enter local measuring mode. In local mode, data measured by the meter transmitted to Meterbox via Bluetooth and stored in the storage medium of the smart mobile. As the limitation of storage and computing capacity of a phone, Meterbox cloud function can not be achieved.

  • Page 60: Data Recording

    Meterbox User’s Guide 5 Data Recording To record data, please enter the Meterbox’s Function Selection interface. Click , the meter will connect with mobile via Bluetooth, measured data could transmit to Meterbox data display interface in real-time. www.tmatlantic.com...

  • Page 61: Data Chart

    Meterbox User’s Guide When users need to record data, press button to begin recording in real-time, the prompt can check current recording. To terminate data recording, re-click , the meter data recording completed. In local mode, data stored in cell phone, while in cloud mode, data transmit to meter cloud sever in real-time.
  • Page 62 Meterbox User’s Guide Or in data file interface, press data file to enter the chart interface. Meterbox can make the real-time data and measured data to be visualized, which can great improve the users’ interface. In the chart interface, users can enlarge, reduce and pan the visual data to do kinds of business analysis conveniently.

  • Page 63: Data File

    Meterbox User’s Guide 7. Data File To check the data file, users can enter Meterbox Function Selection interface, choose button In the interface of data file list, all the buffered measure data in local database will be shown. Data measured by local mode, the front of the data file will shown icon , indicate the data have not synchronized in the meter cloud sever, on the contrary, the front of the data file shown icon...

  • Page 64: Data Sharing

    Meterbox User’s Guide Data Sharing Users can export measured data from Meterbox for other statistics analysis or producing professional report etc. To export the data, first press the button on the mobile in the chart interface, will popup menu, users can click Save As Picture , or Save As CSV.

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