Teledyne T3DMM4-5 User Manual
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Teledyne T3DMM4-5 User Manual

Teledyne T3DMM4-5 User Manual

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T3DMM4-5 Digital Multimeter

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Summary of Contents for Teledyne T3DMM4-5

  • Page 1 User Manual T3DMM4-5 Digital Multimeter...

  • Page 2: Copyright And Statement

    Trademark Information Teledyne Test Tools is registered trademark of Teledyne Test Tools. Statement Teledyne Test Tools products are protected by patent laws in and outside ● of the United States of America. Teledyne Test Tools reserves the rights to change the specification and ●...

  • Page 3: General Safety Summary

    Do not operate with suspected failures. If you suspect that the product is damaged, please contact a Teledyne Test Tools qualified service personnel to inspect it. Any repair and adjustment to the product or replacing a component should only be done by qualified personnel.

  • Page 4: Safety Terms And Symbols

    Use only the fuse specified for the instrument. Use proper over-voltage protection. Use anti-static protection. Operate in an anti-static protected area. Ground measurement cable conductors before connecting to the instrument to discharge any static electricity before connecting the cables to the instrument. Observe ventilation requirements.

  • Page 5: Operating Environment

    The following symbols may appear on the instrument: CAUTION WARNING Earth Protective Frame Alternating Risk of Risk of Ground Conductor Standby Current injury or electric Terminal Terminal Chassis Power damage; shock or Terminal refer to burn manual Operating Environment Temperature: 0 °C to 40 °C Humidity: 5% to 90% relative humidity (non-condensing) up to +30 °C.
  • Page 6 Input terminal protection limitation. Protection limit is defined for the input terminals: 1. Main input (HI and LO) terminal HI and LO terminals are used for Voltage, Resistance, Capacitance, Continuity, Frequency and Diode measurements. Two protection limits are defined: HI-LO protection limit: 1000VDC or 750AVC. It is the maximum ●...
  • Page 7 The multimeter can make measurements with the HI and LO inputs connected to mains in such devices (≤ 300 VAC for T3DMM4-5 and ≤ 600 VAC for T3DMM5-5 / T3DMM6-5) or to the branch outlet itself.

  • Page 8: Main Features

    It contains a combination of basic measurement functions, multiple math functions, and display functions, etc. T3DMM4-5 has a 4.3 inch colour TFT-LCD display screen. Its clear keyboard layout and operation hints make it easier and quick to use. It also supports multi-interfaces such as USB Device, USB Host, and LAN.

  • Page 9: Abstract

    The manual covers information for the effective operation of the T3DMM4-5 Digital Multimeter. It contains these chapters: Chapter 1 Quick Start General introduction to the T3DMM4-5 Digital Multimeter, the Front/Back panel and user interface. Chapter 2 Function and Operation Introduce the functions and operations of T3DMM4-5 in detail.

  • Page 10: Table Of Contents

    Content Copyright and Statement ..................II General Safety Summary ................III Safety Terms and Symbols................VII Introduction to T3DMM4-5 ................VIII Abstract ......................IX Chapter 1 Quick Start ................11 General Inspection ...................12 Handle Adjustment ................13 Front Panel ....................14 Back Panel ....................15 Power On ....................16 User Interface ..................17 Single Display: ..................17...
  • Page 11 Short-circuit Resistance ...............50 Dual-display Function ................51 Utility Function ..................53 Store and Recall ..................54 Manage File ..................56 I/O Configuration .................58 LAN Settings ..................58 Board Test....................60 System Setup ..................64 Firmware Update .................66 Acquire ....................67 Auto Trigger ..................68 Single Trigger ..................69 External Trigger ...................70 Help System ....................71 Math Function ..................73 Statistics ....................75...
  • Page 12 Crest Factor Errors (non-sinusoidal inputs) ...........103 Loading Errors (AC Voltage) ..............104 Chapter 5 General Troubleshooting ...........105 Chapter 6 Appendix................107 Appendix A: Accessories ...............107 Appendix B: Warranty summary ............108 Appendix C: Daily Maintenance and Cleaning ........109 Maintenance..................109 Cleaning .....................109 Appendix D: Contact Teledyne Test Tools ..........110...

  • Page 13: Chapter 1 Quick Start

    Chapter 1 Quick Start General Inspection Handle Adjustment The Front Panel The Back Panel To Connect Power Line User Interface To Use Safety Lock...

  • Page 14: General Inspection

    Damage of the instrument caused by the shipment will be compensated by the shipper or carrier. Teledyne Test Tools will not be responsible for free repair or replacement. 2. Inspect the instrument.

  • Page 15: Handle Adjustment

    To adjust the Handle Adjust the handle position of T3DMM4-5 properly to place the instrument in a stable position, so that users can manipulate and observe the display better. Please grip the handle by the two sides and pull it outward. Then rotate the handle to the appropriate position.

  • Page 16: Front Panel

    Front Panel T3DMM4-5 Digital Multimeter provides users with a brief and clear front panel. These control buttons are group by logic and users only need to choose the corresponding buttons to carry out the basic operations, as shown in Diagram 1- 4.

  • Page 17: Back Panel

    Back Panel T3DMM4-5 Digital Multimeter’s Back Panel provides users with abundant interfaces as shown in the following diagram. Diagram 1- 5 Back Panel Overview Power Socket Power Fuse AC Voltage Selector Extension card interface (not used) USB Device VMC Output...

  • Page 18: Power On

    (200~240V, 50/60Hz, AC) in accordance with the power standards of your country. 2. Connect the instrument to an AC supply via a power cord supplied by Teledyne Test Tools. 3. Press the power key on the front panel, the instrument will be started a few seconds later.

  • Page 19: User Interface

    User Interface Single Display: Trigger Mode LAN State Icon Control Mode Main Display Function Reading Display Unit Measurement Range Softkey Menu Diagram 1- 6 Single Display Interface Dual-Display: Dual Display Icon Main Display Function Main Display Second display Diagram 1-7 User Interface...

  • Page 20: Chapter 2 Functions And Operation

    Chapter 2 Function and Operation To Measure DC Voltage/Current To Measure AC Voltage/Current To Measure 2-Wire/4-Wire Resistance To Measure Frequency/Capacitance To Test Continuity/Diode To Measure Temperature To use Dual-display Function or Set Up the Utility Acquire Function or Help System Math Function or Display Function Run/Stop Single Trigger / Hold Measurement Function...

  • Page 21: To Select Measurement Range

    To Select Measurement Range The Multimeter has two kinds of modes of selecting a measurement range: “Auto” and “Manual”. It can select the appropriate range according to the signals input in Auto mode, which is very convenient for users. While in Manual mode, you can obtain a higher reading precision.
  • Page 22 Diagram 2- 2 Range selection menus Explanation: 1. When the input signal is beyond the current scope of the measurement range, the Multimeter will show “overload”. 2. The Range option will turn back to default setting “Auto” after restarting and remote reset.

  • Page 23: To Select Measurement Speed

    Selecting Measurement Speed The instrument provides three types of measurement rates: 5 reading/s, 50 reading/s and 150 reading/s. 5 reading/s is the “Slow” rate; 50 reading/s is the “Middle” rate and 150 reading/s is the “Fast” rate. Measurement speed can be controlled by the soft key menu. Press [Speed] and then press [Slow], [Middle] or [Fast] to choose the measurement speed.

  • Page 24: Basic Measurement Functions

    Basic Measurement Functions T3DMM4-5 Digital Multimeters have the following basic functions: To Measure DC Voltage To Measure AC Voltage To Measure DC Current To Measure AC Current To Measure 2/4-Wire Resistance To Measure Capacitance To Test Continuity To Test Diode...

  • Page 25: To Measure Dc Voltage

    To Measure DC Voltage The Multimeter enables a user to measure DC Voltage up to 1000V. The process steps to connect and measure DC Voltage will be introduced as follows. Operating Steps: 1. Press on the front panel to enter the DC Voltage measurement interface, as shown in Diagram 2- 4.
  • Page 26 3. Choose a voltage range in accordance with the measured circuit. Table 2- 1 Measurement Characteristics of DC Voltage Ranges* 600mV, 6V, 60V, 600V, 1000V Input Protection 1000V on all ranges (HI terminal) Configurable Range, Speed DC input impedance, Rel NOTE*: All the ranges enable a user to obtain a 20% value higher than the original ●...

  • Page 27: To Measure Dc Current

    Measure DC Current The Multimeter can measure the DC Current up to 10A. The method to connect and measure the DC Current will be introduced in detail in the following steps. Operating Steps: 1. Press on the front panel to enter the DC Current measurement interface, as shown in diagram 2- 6.
  • Page 28 3. Choose a current range in accordance to the measured circuit. Table 2- 2 Measurement Characteristics of DC Current Ranges* 600μA, 6mA, 60mA, 600mA, 6A, 10A Input Protection 10A (back panel), 12A (inside the instrument) Configurable Range, Speed, Rel, Auto NOTE*: All the ranges enable a user to obtain a 10% value higher than the original except 10A.

  • Page 29: To Measure Ac Voltage

    To Measure AC Voltage The Multimeter can measure the AC Voltage up to 750V. The method to connect and measure the AC Voltage will be introduced in detail in the following steps. Operating Steps: 1. Press on the front panel to enter the AC Voltage measurement interface, as shown in Diagram 2- 8.
  • Page 30 3. Choose a voltage range in accordance to the measured circuit. Table 2- 3 Measurement Characteristics of AC Voltage Ranges* 600mV, 6V, 60V, 600V, 750V Input Protection 750Vrms on all ranges (HI terminal） Configurable Range, Speed, Rel, Auto NOTE*: All the ranges can withstand a 10% value higher than the range maximum ●...

  • Page 31: To Measure Ac Current

    To Measure AC Current The Multimeter can measure the AC Current up to 10A. The method to connect and measure AC Current will be introduced in detail in the following steps. Operating Steps: 1. Press on the front panel to enter the AC Current measurement interface, as displayed in diagram 2- 11.
  • Page 32 3. Choose a current range in accordance to the measured circuit. Table 2- 4 Measurement Characteristics of AC Current Ranges* 60mA, 600mA, 6A, 10A 10A (back panel), 250V(fuse), 12A (inside the Input Protection instrument) Configurable Range, Speed, Rel, Auto NOTE*: All the ranges can measure a Value 10% higher than original except 10A.

  • Page 33: To Measure 2-Wire/4-Wire Resistance

    Measure 2-Wire/4-Wire Resistance The Multimeter can measure a 2-Wire Resistance and 4-Wire Resistance. The method to connect and measure a 2-Wire/4-Wire Resistance will be introduced in detail separately. 2-Wire Resistance Operating Steps: 1. Press on the front panel to enter the 2-Wire Resistance measurement interface, as displayed in diagram 2- 13.
  • Page 34 3. Choose a resistance range in accordance to the scope. Table 2- 5 Measurement Characteristics of 2-Wire Resistance Ranges* 600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ, 10MΩ,100MΩ Open-circuit Voltage <8V Input Protection 1000V on every range (HI terminal) Configurable Range, Speed, Rel, Auto NOTE*: All the ranges can measure a value 10% higher than the selected range.

  • Page 35: 4-Wire Resistance

    4-Wire Resistance Operating Steps: 1. Press on the front panel to enter the 4-Wire Resistance measurement interface, as displayed in diagram 2- 14. Diagram 2- 15 4-Wire Resistance Measurement Interface 2. Connect the red lead to the terminal Input-HI and the black lead to terminal Input-LO as displayed in diagram 2- 16.
  • Page 36 3. Manually choose a resistance range or set to Auto. Table 2- 6 Measurement Characteristics of 4-Wire Resistance Ranges* 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ, 10MΩ, 100MΩ Open-circuit Voltage <8V 1000V on each range (HI terminal) Input Protection 200V on each range (HI Sense, LO Sense) Configurable Parameters Range, Speed, Rel, Auto NOTE*: All the ranges can measure a Value that is 20% higher than the range.

  • Page 37: To Measure Capacitance

    To Measure Capacitance The Multimeter can measure Capacitance up to 1000μF. The method to connect and measure Capacitance will be introduced in detail in the following steps. Operating Steps: 1. Press on the front panel to enter the Capacitance measurement interface, as shown in diagram 2- 17.
  • Page 38 3. Choose a capacitance range in accordance to the measured circuit. Table 2- 7 Measurement Characteristics of Capacitance Ranges* 2nF, 20nF, 200nF, 2μF, 200μF, 200μF, 10000μF Input Protection 1000V on all ranges (HI terminal) Configurable Range, Rel Parameters NOTE*: All the ranges can obtain a 20% value higher than the original. Both Manual and Auto are available for setting every range.

  • Page 39: To Measure Frequency Or Period

    To Measure Frequency or Period The Frequency or Period of a signal could be obtained by the Dual-display Function whilst measuring its voltage or current; or by the function button on the front panel. The method to connect and measure the Frequency or Period will be introduced in detail in the following steps.
  • Page 40 3. Choose a voltage range in accordance to the measured circuit. Table 2- 8 Measurement Characteristics of Frequency Ranges 600mV, 6V, 60V, 600V, 750V Measurement Range 20Hz ~ 500kHz Input Protection 750Vrms on all ranges (HI terminal) Configurable Range, Rel 4.

  • Page 41: To Measure Period

    To Measure Period Operating Steps: 1. Press on the front panel and select [Period] to enter the Period measurement interface. The lower right corner of the screen shows the unit of Period, as displayed in diagram 2- 21. Diagram 2- 21 Period Measurement Interface 2.
  • Page 42 3. Choose a voltage range in accordance to the measured circuit. Table 2- 9 Measurement Characteristics of Period Ranges 200mV, 2V, 20V, 200V, 750V Measurement Range 2μs – 50ms Input Protection 750Vrms on all ranges (HI terminal) Configurable Range, Rel 4.

  • Page 43: To Test Continuity

    To Test Continuity Continuity test uses the double leads method to measure the resistance of the measured circuit via the 0.5mA current. When the measured resistance in circuit is lower than the selected one, it is considered being connected with the instrument.
  • Page 44 3. Set the Short-circuit resistance. The default value is set as 50Ω before leaving the factory. The value can be changed by using the direction keys. You also can execute the Continuity measurement directly without modification. Table 2- 10 Measurement Characteristics of Continuity Test Current Ranges* Fixed at 2kΩ...

  • Page 45: To Test Diode

    To Test Diode If the input voltage is under the Threshold, the Beeper will beep persistently. The method to test Diode will be introduced in in detail in the following steps. Operating Steps: 1. Press on the front panel to enter the Diode test interface, as displayed in Diagram 2- 25.
  • Page 46 3. Set the Threshold function. The default value is set as 2V before leaving the factory. The value can be changed by using the direction keys. You also can execute the Diode measurement directly without modification. Table 2- 11 Characteristics of Checking Diodes Test Current Ranges* 0~4V...

  • Page 47: To Measure Temperature

    To Measure Temperature The Multimeter supports two types of temperature sensor: TC and RTD. The method to connect and measure Temperature will be introduced in detail in the following steps. Operating Steps: 1. Press on the front panel to enter the Temperature measurement interface, as displayed in diagram 2- 27.
  • Page 48 3. Press [Load] and use the direction keys to select the required file. Press [Read] to recall an existing configuration file. Diagram 2- 29 Load a Configuration File 4. Press [Define] to view the configuration, as displayed diagram 2- 30. Diagram 2- 30 Configuration of the Sensor 5.
  • Page 49 6. Press [All], the measured value will be shown on the Vice display and the corresponding value will be shown on the Main display at the same time, which is convenient for users to observe temperature and voltage values. Diagram 2- 32 Show Temperature And Voltage Values 7.
  • Page 50 9. Read the measurement result. The Temperature measurement is fixed at “Fast” rate. Therefore, you cannot adjust the reading rate when reading the result. 10. View historical data. There are four methods to view historical data: “Number”, “Bar Meter” “Trend Chart” and “Histogram”.

  • Page 51: Measurement Parameters

    Measurement Parameters The parameters have been configured before the Multimeter leaves the factory. Users can either measure or modify the parameters to meet your own requirements. DC Input Impedance DC input impedance is only applicable for a DC voltage measurement. When the DC Voltage function is selected, press [Range] and select [600mV] to show the menu [Input Z], as displayed in diagram 2- 35.

  • Page 52: Short-Circuit Resistance

    Short-circuit Resistance Set up the short-circuit resistance value in the short-circuit test menu. When the measured resistance is lower than the short-circuit resistance, the circuit is considered as connected, and the beeper sounds (if sound is turned on). The short-circuit resistance is only applicable to the continuity test. Operating Steps: 1.

  • Page 53: Dual-Display Function

    Dual-display Function Dual-display function is used to improve the test and measurement functions. Press to open the Dual-display function and the upper right corner will show “Dual”. By this time, press a function key if this function can be used as the vice display, it will be displayed in the Vice Display.
  • Page 54 2. If different measurement functions are used in both Main and Vice Display. The readings in both displays will update alternately. ● If the math function (dBm, dB) is used in the Main Display, when opening ● the Vice Display, the math operation will be closed automatically, and Vice Display will show the second selected function normally.

  • Page 55: Utility Function

    Utility Function The Utility function enables users to set up system parameters, interface parameters of the multimeters. Press to enter the operating menu of the Utility function, as displayed in diagram 2- 36. Diagram 2- 36 Utility Function Configuration Interface Table 2- 13 Utility Function Menu Description Function Menu Description...

  • Page 56: Store And Recall

    Store and Recall The Store/Recall function enables users to store and recall the instrument parameters and data files in the local storage as well as in the USB storage. Operating Steps: 1. After entering the Utility function menu, press [Store/Recall] to enter the interface as displayed in diagram 2-37.
  • Page 57 Table 2- 14 Storage Function Menu Description Function Settings Description Menu Browse Choose the location that file will be saved. File Input a file name. Name Type .xml/ Choose the type that the file is saved. .csv Store Save the file as input file name to the current selected location.

  • Page 58: Manage File

    Manage File The Manage File function enables users to create a new folder and save, copy, rename or delete files in the local storage as well as in USB storage. Operating Steps: 1. After entering into the Utility function menu, press [Manage File] to enter the interface as displayed in diagram 2-40.
  • Page 59 The method of inputting a file name: Press the direction keys to select a desired char in the input area. ● Press “OK” key on the front panel to input selected char in the input area. ● Press [Clear All] to clear all input chars. ●...

  • Page 60: I/O Configuration

    I/O Configuration Press [I/O Config] to enter the following interface and set up the parameters. Diagram 2- 42 I/O Configuration Interface LAN Settings The Multimeter enables users to operate the instrument remotely by LAN interface and store or recall internet settings. You can review the current LAN settings and set up the IP address and subnet mask.
  • Page 61 Table 2- 16 LAN Settings Function Description Menu IP Address Set up IP address and the default setting is 10.11.11.104. Subnet Set up subnet mask and the default setting is 255.0.0.0. Mask Gateway Set up gateway and the default setting is 192.168.0.1 Cancel Cancel current operation and return to the higher-level menu.

  • Page 62: Board Test

    Board Test T3DMM4-5 provides self-test functions, including Key Test, LCD Test, Beeper Test and Chip Test. Operating Steps: 1. Press , then choose [Test/Admin] → [Board Test] to enter the following interface. Diagram 2- 45 Board Test Interface Table 2- 17 Board Test Function Description...
  • Page 63 2. Test the keys. Select [Key] to enter the key test interface, as displayed in diagram 2-46. The on-screen lathy rectangle shapes represent the keys on the front panel. Test all keys and knobs and you should also verify that all the backlit buttons illuminate correctly.
  • Page 64 3. Test the LCD screen. Select [LCD] to enter the screen test interface. The screen displays the message “Press ‘Change’ to change; Press ‘Done’ to exit”. Press [Change] to start the test and observe if the screen has changed colour or displayed an error message, as shown in diagram 2-47.
  • Page 65 5. Test the chips. Press [Chip] → [Start] to enter chip test interface, as Diagram 2-48 shows. Diagram 2- 48 Chip Test Interface NOTE: If the test has passed, the corresponding result shows “pass”. ● If the test has failed, the corresponding result shows “fail”. ●...

  • Page 66: System Setup

    System Setup Press , then select [System Setup] to enter the following interface. Diagram 2- 49 System Setup Interface Table 2- 18 System Settings Menu Description Function Menu Description Language Select the display interface language. Firmware Update Update software version. Screen Set up the screen protection function.
  • Page 67 2. Set up the time of screen protection. Press [Screen] to set up the screen protection as 1 Min, 5 Mins, 15 Mins, 30 Mins, 1 Hour, 2 Hours or 5 Hours according to different demands. Activate the screen saver program and the screen saver will be on if no action is taken within the time that you have selected.

  • Page 68: Firmware Update

    Firmware Update The software of the Multimeter can be updated directly via a USB flash drive, to update the current software version to a desired software version. Operating Steps: 1. Copy the update file to the USB flash drive. 2. Insert the USB flash drive to the USB host interface on the front panel of the Multimeter.

  • Page 69: Acquire

    Acquire Sampling is a process of acquiring and digitising a signal. The optional Trigger methods of the Multimeter include Auto Trigger, Single Trigger and the External Trigger. Press to enter the interface shown as the following diagram: Diagram 2- 52 Acquire Interface Table 2- 19 Function Menu of triggering parameter Function Menu Description...

  • Page 70: Auto Trigger

    Auto Trigger Auto Trigger parameters that need to be set up include delay, samples/trigger and VMC out. Operating Steps: , then select [Trg Src] → [Auto] or press 1. Press on the front panel directly to enable the Auto Trigger. 2.

  • Page 71: Single Trigger

    Single Trigger Single Trigger parameters that need to be set up include delay, samples/trigger and VMC out. Operating Steps: 1. Press , then select [Trg Src] → [Single]; or press on the front panel directly to enable the Single Trigger. See diagram 2- 53. Diagram 2- 53 Setting interface of Auto Trigger 2.

  • Page 72: External Trigger

    External Trigger The external trigger signal will be input via the EXT TRIG interface on the rear panel. The External trigger parameters that need to be set up include delay, samples /trigger, slope and VMC out. Operating Steps: , then select [Trg Src] → [Ext] or press 1.

  • Page 73: Help System

    Help System T3DMM4-5 provides a powerful built-in help system. You can recall help information at any time whilst using the instrument. You also can get functionality help for every button on the front panel or menu soft key by using the built-in help system.
  • Page 74 3. Measuring Capacitance. Get the method to measure temperature. 4. Math Function. Introduce how to use the math function while you are measuring. 5. Dual-display Function. Get the method to use the dual-display function while you are measuring. 6. Saving and Recalling Information. Introduce how to store and recall the data/parameter/sensors files.

  • Page 75: Math Function

    Math Function The Multimeter provides five math functions: Statistics, Limits, dBm, dB and Relative. Choose different math functions to meet different measurement demands. Press to show the operating menu of math functions on the screen, as shown in the following diagrams. Diagram 2- 56 Math Function Menu of DC Voltage Diagram 2- 57 Math Function Menu of AC Current...
  • Page 76 Table 2- 21 Math Function Menu Description Function Settings Description Menu Reading statistic functions, including: max, min, Statistics average, span, std dev and samples. The Limits function performs Pass/Fail testing Limits according to the specified upper and lower limits. The dBm is based on a calculation of power delivered to a reference resistance, 0dBm = 1mW.

  • Page 77: Statistics

    Statistics There are many kinds of reading statistic functions, including: Max, Min, Average and Standard deviation. → [Statistics] → [Show] to enter the interface shown in the following Press diagram. Diagram 2- 58 Statistics Table 2- 22 Statistic Measurement Menu Function Description Function Settings Description...
  • Page 78 Statistics Function: In statistic function, the first reading is usually set to the maximum or ● minimum value. When performing more readings, the current displaying value is always the maximum/minimum reading among all the measured values. The maximum, minimum, average and reading quantities are stored in ●...

  • Page 79: Limits

    Limits Limits function is available to prompt signals beyond ranges according to the upper and lower parameters. → [Limits] → [On] to enter the interface shown in the diagram 2- 59. Press Diagram 2- 59 Limits Table 2- 23 Limits Measurement Menu Function Description Function Settings Description...
  • Page 80 1. How to Set Limits Select [High], [Low], [Centre] or [Span] and then switch to the required digit by using the Left or Right Direction keys and input the numerical value by using the Up and Down Direction keys. 2. Unit The unit of Limits is decided by the current measurement function.

  • Page 81: Dbm

    The dBm function is logarithmic and based on a calculation of power delivered to a reference resistance, relative to 1 mill watt. This function only applies to AC voltage and DC voltage measurements. Press → [dB/dBm] → [On] and select [Function dBm] to enter the interface displayed in diagram 2- 60.
  • Page 82 Each dB measurement is different between the input signal and a stored relative value, with both values converted to dBm. The dB function applies to AC voltage and DC voltage measurements only. Press → [dB/dBm] → [On] and select [Function dB] to enter the interface displayed in diagram 2- 61.
  • Page 83 The computation method of the dB: dB = 10 x Log [(Reading )/0.001W] – (dB Ref value) is the resistance value measurement of the actual electric circuit. Range of the dB Ref value: -200 dBm ~ +200 dBm. The default is 0 dBm dB Ref value Input a value in the dB setting interface by via the direction button;...

  • Page 84: Relative Value

    Relative Value Relative value is used for relative measurement. The actual measurement reading is the depression between the measurement value and pre-set value. The Multimeter allows operating for the following parameters: DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Period, Capacitance and Temperature.

  • Page 85: Display Mode

    Display Mode The Multimeter supports four methods to view measured data: “Number”, “Bar Meter”, “Trend Chart” and “Histogram”. Number Press to open the menu in display mode and press [Display] to enter the following interface. “Number” is always the selected mode when the Multimeter is turned on.

  • Page 86: Bar Meter

    Bar Meter Operating Steps: 1. Press [Bar Meter] to enter Bar Meter display mode. Diagram 2- 64 Bar Meter Display Mode 2. Press [Horizontal Scale] to set the vertical scale as a Default or Manual mode or Limits (limit function is on). Table 2- 27 To Set the Vertical Scale of Bar Meter manually Function Menu Description...

  • Page 87: Trend Chart

    Trend Chart Operating Steps: 1. Press [Trend Chart] to enter the Trend Chart display mode. Diagram 2- 65 Trend Chart Display Mode Table 2- 28 Trend Chart Display Mode Function Menu Description Display The current selected display mode is Trend Chart. Trend Recent Displays the recent or all readings.
  • Page 88 2. Press [Horizontal Scale] to set the horizontal scale as Default, Auto or Manual or Limits ( Limit function is on) mode. 3. Press [Auto] and the Multimeter will set the vertical scale automatically. Diagram 2- 66 Auto Vertical Scale 4.

  • Page 89: Histogram

    Histogram Operating Steps: 1. Press [Histogram] to enter the Histogram display mode. Diagram 2- 68 Histogram Display Mode Table 2- 29 Histogram Display Mode Function Settings Description Menu Display The current selected display mode is Histogram. Histogram Binning Set Binning as Auto or Manual mode. Bin Set Set the Bin parameters.
  • Page 90 2. Press [Binning] to set Binning to Auto or Manual mode. When in the Manual mode, press [Bin Settings] to enter the following interface. Diagram 2- 69 Bin Set Interface Table 2- 30 Bin Set Function Settings Description Menu Num.Bins Set the number of Bins, 10, 20, 40, 100, 200 or 400.

  • Page 91: Trigger

    Trigger The Multimeter supports Trigger function. Press on the front panel to trigger the Multimeter by Auto or Single mode. Auto trigger is considered as a default when the power is on. Auto Trigger Press on the front panel one time and the Auto Trigger will be started to capture continuous readings automatically.

  • Page 92: Hold Measurement Function

    Hold Measurement Function The Hold Measurement function provides users with a stable reading on the screen of the front panel. When the test leads are put away, the reading is still held on the screen, which enables users to view the measured history data. Press to open the Hold measurement function interface.

  • Page 93: Chapter 3 Application Examples

    Chapter 3 Application Examples This chapter introduces a few application examples to help users control and manipulate T3DMM4-5 quickly. Example 1: Reading Statistic Functions Example 2: To Eliminate Leads Impedance Example 3: dBm Measurement Example 4: dB Measurement Example 5: Limits Test...

  • Page 94: Example 1: Reading Statistic Functions

    Example 1: Reading Statistic Functions Introduce how to realise the statistic function during measuring. When continually measuring few readings, the Multimeter will update statistic values constantly. Operating Steps: 1. Press on the front panel to select the AC Voltage measurement function and select a voltage range.

  • Page 95: Example 2: To Eliminate Leads Impedance

    Example 2: To Eliminate Leads Impedance Relative Operation could eliminate impedance errors from leads when measuring smaller resistance. Operating Steps: 1. Press on the front panel to select the 2-Wire Resistance measurement function. 2. Connect the red lead to the terminal Input-HI and the black lead to terminal Input-LO as displayed in diagram 2-14 on page 31.
  • Page 96 5. Set the parameters for Relative operation. → [Rel Value] to set the relative value as current Press measured value. Diagram 3- 4 Set Relative Value 6. Press [Rel] on the softkey menu to open the Relative operation. The Relative Operation has been turned on. Diagram 3- 5 Lead Impedance after Operation...

  • Page 97: Example 3: Dbm Measurement

    Example 3: dBm Measurement dBm is commonly used in the audio signal measurement. The following will introduce you how to measure the dBm value. Operating Steps: 1. Press on the front panel to select the AC Voltage measurement function and choose a voltage range. 2.

  • Page 98: Example 4: Db Measurement

    Example 4: dB Measurement As a common measuring unit, dB has been widely used in electrical engineering, radio science, mechanics, shock and vibration, mechanical power and acoustics areas. The following will introduce you on how to measure dB between two circuits.
  • Page 99 Method 3: 1. Access the first circuit. Measure dBm2 according to Example 3. → [dB/dBm] to turn on the dB function and select 2. Press [Measure Ref Value] to set the current dBm measurement value as the preferred value. 3. Access the first circuit. At this time, the reading shown on the screen is the power difference between two circuits.

  • Page 100: Example 5: Limits Test

    Example 5: Limits Test Limits Operation notifies a user if a signal has overstepped its range in accordance to the selected High and Low Limit parameters; meanwhile the beeper will sound an alarm (if sound is on.) Operating Steps: 1. Press on the front panel to select the AC Voltage measurement function and choose a voltage range.
  • Page 101 5. Turn on the beeper to start the Limits Test. As shown in Diagram 3-10. The measured result is between the Low and High limits, so the test status is “True”. 6. If changing the high limit value to 1V, the measured result for the low and high limits will display.

  • Page 102: Example 6: To Use Hold Measurement Function

    Example 6: To Use Hold Measurement Function Reading Hold can help user obtain a stable reading and hold it on the display of Front Panel. The reading would be held all the same although testing pen had been moved away. Then we will introduce how to keep the readings displayed on screen.
  • Page 103 5. Connect the red lead to the terminal Input-HI and black lead to the terminal Input-LO as Diagram 2-9 on page 27. The screen will record the AC voltage measured result as shown in the following diagram. Diagram 3- 12 Result 2...

  • Page 104: Chapter 4 Measurement Tutorial

    Chapter 4 Measurement Tutorial True RMS AC Measurement The AC measurement of the Multimeter has a true RMS response. The power dissipated in the resistor within a time is proportional to the square of the measured true RMS voltage, independent of wave shape. The instrument can accurately measure true RMS voltage or current, if the wave shape contains negligible energy above the effective bandwidth.

  • Page 105: Crest Factor Errors (Non-Sinusoidal Inputs)

    Crest Factor Errors (non-sinusoidal inputs) A common misconception is that "since an ac Multimeter is true RMS, its sine wave accuracy specifications apply to all waveforms. “Actually, the shape of the input signal can dramatically affect the measurement accuracy. A common way to describe the signal wave shapes is “crest factor”.

  • Page 106: Loading Errors (Ac Voltage)

    Loading Errors (AC Voltage) In the AC Voltage function, the input of T3DMM4-5 appears as a 1MΩ resistance in parallel with 100pF of capacitance. The test lead that you use to connect signals to the Multimeter will also add additional capacitance and loading. The approximate input resistances of the Multimeter at different frequencies are listed in the following table.

  • Page 107: Chapter 5 General Troubleshooting

    3. Check if the power fuse has blown. Replace it as desired if it has blown. 4. Restart the Multimeter after all the above steps are complete. 5. If the instrument still cannot start up properly, please contact Teledyne Test Tools.
  • Page 108 3. Check if the capacity of the used USB disk is too large. The Multimeter is recommended not to use USB disks which exceed 8GB. 4. After restarting the instrument, insert the USB disk again to inspect. 5. If you still cannot use the USB disk properly, please contact Teledyne Test Tools.

  • Page 109: Chapter 6 Appendix

    We suggest that the length of the USB data wire and LAN cable connected • to the instrument should be less than 3m to avoid affecting the product performance. All the accessories are available by contacting your local Teledyne Test • Tools office.

  • Page 110: Appendix B: Warranty Summary

    Teledyne Test Tools makes no warranty of any kind, express or implied, including without limitation the implied warranties of merchantability and fitness for a particular purpose. In no event shall Teledyne Test Tools be liable for indirect, special or consequential damages.

  • Page 111: Appendix C: Daily Maintenance And Cleaning

    Appendix C: Daily Maintenance and Cleaning Maintenance When storing or placing the instrument, please avoid the liquid crystal display from long periods of direct sunlight. NOTE: To avoid damages to the instrument or probe, please do not place them in mist, liquid or solvent.

  • Page 112: Appendix D: Contact Teledyne Test Tools

    Appendix D: Contact Teledyne Test Tools Teledyne LeCroy (US Headquarters) 700 Chestnut Ridge Road Chestnut Ridge, NY. USA 10977-6499 Phone: 800-553-2769 or 845-425-2000 Fax Sales: 845-578-5985 Email Sales: contact.corp@teledynelecroy.com Email Support: support@teledynelecroy.com (Oscilloscopes, Waveform Generators, Signal Integrity) Web Site: http://teledynelecroy.com/...
  • Page 113 © 2018 Teledyne Test Tools is a brand and trademark of Teledyne LeCroy Inc. All rights reserved. Specifications,prices,availability and delivery subject to change without notice. Product brand or brand names are trademarks or requested trademarks of their respective holders.

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