Teledyne T3DMM4-5 User manual

User Manual
T3DMM4-5 Digital Multimeter

II
Copyright and Statement
Copyright
Teledyne Test Tools. All rights reserved.
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
price.
●Information in this publication replaces all previous corresponding
published material.
●Contents in this manual are not allowed to be copied, extracted or
translated in any form or by any means without Teledyne Test Tools
permission.

III
General Safety Summary
Read the following safety precautions carefully to avoid any personal injuries or
damage to the instrument and any products connected to it. To avoid potential
hazards, please use the instrument as specified.
Use the correct power cord.
Use the power cord which is supplied with the instrument and approved by the
country where the instrument will be used.
Ground the instrument.
The instrument is grounded through the protective ground conductor of the power
cord. The ground conductor must be connected to earth to avoid electric shock. Make
sure the instrument is grounded correctly before connecting its input or output
terminals.
Connect the signal wires correctly.
The potential of the signal conductor is equal to earth, so do not connect the signal
conductor to a high voltage beyond the rating on the instrument.
Observe all terminal ratings.
Please observe all ratings and sign instructions on the instrument to avoid fire or
electric shock. Before connecting the instrument, please read the manual carefully to
gain more information about the ratings.
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.
Avoid circuit or wire exposure.
Do not touch exposed contacts or components when the power is on.
Do not operate without covers.
Do not operate the instrument with covers or panels removed.

IV
Use only the fuse specied 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. Ensure good ventilation. Check the vent and fan
regularly to prevent overheating.
Safety Terms and Symbols
The following terms may appear on the instrument:
DANGER: Direct injury or hazard may occur.
WARNING: Potential injury or hazard may occur.
CAUTION: Potential damage to instrument/property may occur.
CAT I (1): IEC Measurement Category I, applicable for making measurements on
‘other’ circuits that are not directly connected to mains. See p. 6.
CAT II: IEC Measurement Category II, applicable for making measurements on
circuits connected directly to utilization points (socket outlets and similar points) of
the low voltage mains installation.
See page 6
(1) CAT I as dened in IEC/EN 61010-031:2008. Note that Measurement Category I
was removed in IEC/EN 61010-031:2015 and replaced by ‘O’, indicating "other
circuits that are not directly connected to mains."

V
The following symbols may appear on the instrument:
CAUTION
Risk of
injury or
damage;
refer to
manual
WARNING
Risk of
electric
shock or
burn
Earth
Ground
Terminal
Protective
Conductor
Terminal
Frame
or
Chassis
Terminal
ON/
Standby
Power
Alternating
Current
Operating Environment
Temperature: 0 °C to 40 °C
Humidity: 5% to 90% relative humidity (non-condensing) up to +30 °C. Upper limit
derates to 50% relative humidity (noncondensing) at +40 °C.
Altitude: ≤ 2000 m
Use indoors only.
Pollution Degree 2. Use in an operating environment where normally only dry, non-
conductive pollution occurs. Temporary conductivity caused by condensation should
be expected.
AC Power
Input Voltage & Frequency: 100-120 V at 50/60 Hz or
200-240 V at 50/60 Hz
Manual AC selection with a slide switch.
Power Consumption: 20 W maximum
Mains Supply Connector: CAT II per IEC/EN 61010-1:2010, instrument intended to
be supplied from the building wiring at utilization points (socket outlets and similar).
Fuse Type
Current Input Terminal: 250 VAC F 10 A, 3 AG
AC Mains: 250 VAC F 300 mA, 5x20 mm

VI
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
measurable voltage. The limit can be expressed as 1000Vpk.
●LO-ground protection limit: LO terminal can safely “float” 500Vpk
relative to ground. The maximum protection limit of the HI terminal
relative to ground is 1000Vpk. Therefore, the total of the “oat” voltage and
the measured voltage cannot exceed 1000Vpk.
2. Sampling (HI Sense and LO Sense) terminal
HI Sense and LO Sense are used for 4-wire Resistance measurements. Two
protection limits are defined:
●HI Sense-LO Sense protection limit: 200Vpk.
●LO Sense-LO Sense protection limit: 2Vpk.
3. Current input (I) terminal
I and LO terminals are used for current measurement. The maximum current
which go through the Iterminal is limited to 10A by the fuse on the back panel.
NOTE:
Voltage on the current input terminal corresponds to voltage on LO terminal. To
keep protected, only use the fuse of specified type and value to replace
this fuse.

VII
IEC Measurement Category II Overvoltage Protection
To avoid the danger of electric shock, the Digital Multimeter provides overvoltage
protection for line-voltage mains connections that meet both of the following
conditions:
1. The HI and LO input terminals are connected to the mains under
Measurement Category II conditions described in the warning below.
2. The maximum line voltage of the mains does not exceed:
300 VAC for T3DMM4-5
600 VAC for T3DMM5-5 and T3DMM6-5
WARNING:
IEC Measurement Category II includes electrical devices connected to mains at an
outlet on a branch circuit, such as most small appliances, test equipment, and
other devices that plug into a branch outlet or socket.
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.
However, the HI and LO terminals of the multimeter can’t be connected to mains in
permanently installed electrical devices such as the main circuit-breaker panels,
sub-panel disconnected boxes and permanently wired motors. Such devices and
circuits are prone to exceed the protection limits of the multimeter.
Limits for Measurements on Other Circuits Not Directly Connected to Mains
Max. rated input voltage: 1000 Vrms
Transient overvoltage: 4000 Vpk
WARNING:
Voltages above 300 VAC (for T3DMM4-5) or 600 VAC (T3DMM5-5 / T3DMM6-5)
can only be measured in circuits that are isolated from mains. However, there may
be transient over voltage in circuits that are isolated from mains. The multimeter is
able to withstand occasional transient overvoltage up to 4000 Vpk. Please don’t
use this instrument to measure circuits where transient overvoltage may exceed
this level.

VIII
Introduction of T3DMM4-5
T3DMM4-5 is a 4½ digits reading resolution, dual-display instrument,
especially fitting to the needs of high-precision, multifunction, and automation
measurements. 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.
Main Features:
4.3 inch colour TFT-LCD display screen with 480*272 resolution
Real 4½ digits readings resolution
Up to 150rdgs/S measurement speed
True-RMS AC Voltage and AC Current measurements
1 Gb Nand Flash size, mass storage configuration files and data files
Built-in cold terminal compensation for thermocouples
Support standard SCPI and control software on a PC, compatible
With commands of mainstream multimeters
Supports dual-display function, Chinese and English menu
Built-in help system, for immediate help and further information
Support USB Device, USB Host and LAN interfaces
Configuration and measured data can be imported or exported via VXI 11,
USBTMC and USB flash drive, which is convenient for users to modify, view
and backup

IX
Abstract
The manual covers information for the eective 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.
Chapter 3 Application Examples
Introduce the measurement functions and capabilities of this instrument through
examples.
Chapter 4 Measurement Tutorial
How to avoid and eliminate possible errors that could appear during your
measurement, and obtain accurate results.
Chapter 5 General Troubleshooting
Provide general troubleshooting hints and tips.
Chapter 6 Appendix
Provide information about accessories, warranties, troubleshooting,
services and support.

X
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
Dual-Display: ........................................................................................17
Chapter 2 Functions and Operation ..........................................................18
To Select Measurement Range ...............................................................19
To Select Measurement Speed ................................................................21
Basic Measurement Functions .................................................................22
To Measure DC Voltage .......................................................................23
To Measure DC Current .......................................................................25
To Measure AC Voltage .......................................................................27
To Measure AC Current .......................................................................29
To Measure 2-Wire/4-Wire Resistance ................................................31
4-Wire Resistance ................................................................................33
To Measure Capacitance .....................................................................35
To Measure Frequency or Period .........................................................37
To Measure Period ...............................................................................39
To Test Continuity ................................................................................41
To Test Diode .......................................................................................43
To Measure Temperature .....................................................................45
Measurement Parameters........................................................................49
DC Input Impedance ............................................................................49

XI
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
Limits ...................................................................................................77
dBm .....................................................................................................79
dB ........................................................................................................80
Relative Value .....................................................................................82
Display Mode ..........................................................................................83
Number ................................................................................................83
Bar Meter .............................................................................................84
Trend Chart .........................................................................................85
Histogram ............................................................................................87
Trigger ....................................................................................................89
Auto Trigger .........................................................................................89
Single Trigger ......................................................................................89
Hold Measurement Function ...................................................................90

XII
Chapter 3 Application Examples............................................................91
Example 1: Reading Statistic Functions...................................................92
Example 2: To Eliminate Leads Impedance.............................................93
Example 3: dBm Measurement ...............................................................95
Example 4: dB Measurement ..................................................................96
Example 5: Limits Test.............................................................................98
Example 6: To Use Hold Measurement Function...................................100
Chapter 4 Measurement Tutorial ............................................................102
True RMS AC Measurement..................................................................102
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

11
Chapter 1 Quick Start
General Inspection
Handle Adjustment
The Front Panel
The Back Panel
To Connect Power Line
User Interface
To Use Safety Lock

12
General Inspection
1. Inspect the shipping container.
Please keep the damaged container and cushioning material until the contents
of the shipment have been checked completely and the instrument has
passed the electrical and mechanical test.
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.
If there is any mechanical damage or damaged accessories, or the
instrument fails the electrical and mechanical test, please contact your
Teledyne Test Tools sales.
3. Check the accessories.
Check the accessories according to the packing list carefully. If there are any
accessories damaged or missing, please contact your Teledyne Test Tools
sales.

13
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. Please operate as shown in the following diagrams.
Diagram 1- 1 Handle adjustment
Diagram 1- 2 Horizontal Position Diagram 1- 3 Carrying Position

14
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.
B
CD
E
F
H
G
Diagram 1- 4 Front Panel Overview
LCD Display
USB Host
Power Key
Menu Keys
Basic Measurement Function Keys
Auxiliary Measurement Function Keys
Enable Trig Keys
Direction Keys
Signal Input Port
A
I

15
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
LAN
VMC Output
Ext Trig
Current Input Fuse
I
G
H
FE
A
B
C
D

16
Power On
Please power on the instrument with the following steps:
1. Adjust the AC Voltage Selector to 110 (100~120V, 45~440Hz, AC) or 220
(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.

17
User Interface
Single Display:
Trigger Mode LAN State Icon Control Mode
Diagram 1- 6 Single Display Interface
Dual-Display:
Diagram 1-7 User Interface
Main Display
Function
Reading
Display
Measurement Range Unit
Softkey Menu
Second display
Main
Display
Function
Main
Display
Dual Display Icon

18
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
To Switch Functions or Return to Local Menu
To Select Measurement Range