THOMSON DFT-6700 User manual

DFT-6700 Battery Charger
Users Manual
THOMSON TECH CO LTD
www.thomsontesting.com

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Table of Contents
Use notice & Reading tips ....................................................................................................................................................2
Chapter 1 Overview..............................................................................................................................................................4
1.1. DFT-6700 Tester Usage .........................................................................................................................................4
1.2. DFT-6700 Tester Functions....................................................................................................................................4
1.3. DFT-6700 Tester Features......................................................................................................................................5
1.4. Working schematic diagram...................................................................................................................................6
Chapter 2 Shape & structure.................................................................................................................................................8
2.1. The host schematic diagram...................................................................................................................................8
2.2. Package List...........................................................................................................................................................9
2.3 Main Parts Pictures...............................................................................................................................................10
Chapter 3 Connection .........................................................................................................................................................11
3.1. Preparations .........................................................................................................................................................11
3.2. Host connection ...................................................................................................................................................11
3.2.1 Charge cable connection....................................................................................................................................12
3.2.2 Voltage test line connection ...............................................................................................................................13
3.2.3 Others.................................................................................................................................................................13
3.2.4 Illustration of safe operating instructions:..........................................................................................................13
3.3. Cell-Data-Case connection ..................................................................................................................................13
3.4 PC connection.......................................................................................................................................................17
3.5. Running................................................................................................................................................................17
Chapter 4 Functions and operating procedures...................................................................................................................18
4.1. Starting Boot........................................................................................................................................................18
4.2. Battery Charge .....................................................................................................................................................18
4.3. Data management ................................................................................................................................................22
4.4. System settings ....................................................................................................................................................23
4.4.3 System Calibration (Authorization)...................................................................................................................25
Chapter 5 Routine maintenance..........................................................................................................................................26
Chapter 6 FAQ & Tips........................................................................................................................................................27

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Use notice & Reading tips
Use notice
This manual is intended to guide the user in operating the DFT-6700 Tester.
The operator must have the qualification of electrician or above.
The operator should pay special attention to the safety of personnel and equipment during use.
The DFT-6700 Tester belongs to the precision test equipment, in the process of use should be lightly handled,
do not throw and throw, the result of the light will lead to the deformation of the shell, the heavy will lead to
the failure of internal components, affecting normal use.
Avoid splashing liquids onto the surface of the smart control charge monitoring DFT-6700 Tester to avoid
permanent damage caused by entering the system, and flammable gases may cause explosions.
For your safety, please read the entire contents of this manual before operating the DFT-6700 Tester. The surveyor
should be familiar with the characteristics of the system under test. It is important to take the correct testing steps to
avoid injury to yourself and others in the work area and to detect damage to your equipment.
Ensure that the operator has a comprehensive understanding of the battery, charging system and relative device
starting before using this tester. Before using this tester, be sure to refer to and follow the relevant safety
precautions and test procedures provided by the THOMSON of the equipment under test.
Safety Information: Security information is used to avoid casualties and damage to equipment.
Reading & understanding and comply with the safety information and instructions in this instruction manual,
including follows:
Dangerous! Indicates a very urgent and dangerous situation that could result in serious casualties if not avoided.
Warning! Indicates a potentially dangerous situation that could result in serious casualties if not avoided.
Note! Indicates a potentially dangerous situation that may result in general personal injury if not avoided.
Significant! Indicates a potentially hazardous situation that could result in damage to the test equipment if not
avoided.
Prompt! Do not operate the Air (Control) Switch during charge

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Important safety guidelines
Warning
Explosion hazard! The gas produced by the battery is extremely explosive.
Reading & understanding and follow all guidelines with the tester, battery, and any other equipment near the
battery.
No Smoking & No lighting matches, and placing metal tools near or creating sparks near the battery are
prohibited.
The terminals should be cleaned before using the tester. Take care to protect your eyes, nose and mouth when
cleaning. Soda and water can be used to neutralize acidity to reduce the corrosiveness of the air.
Do not place the tester in rain or snow or in a humid environment.
Do not allow battery gas or sulfuric acid to touch the tester's housing.
Never charging, testing, or loading to a frozen battery. The battery should be thawed and warmed to room
temperature before performing the above operations. Charging or testing a frozen battery can cause the battery
to explode and injure people.
Before performing the test, confirm that all test connectors are connected according to the guidelines.
Make sure that the two battery clips are securely connected to the battery.
Battery explosions can cause casualties.
Warning!
Prevent burns
The current generated by the battery short circuit is enough to melt down various ornaments and make them weld
to metal. So please remove various ornaments while working near the battery.
Any short circuit will result in injuries!!!

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Chapter 1 Overview
1.1. DFT-6700 Tester Usage
This DFT-6700 Tester can charging, single cell testing, online monitoring as 3-in-1 multi-purpose, which reduce
the cost and reduce the labor intensity of maintenance personnel, and provide comprehensive scientific testing
methods for battery and UPS power maintenance.
The Smart portable DFT-6700 Battery Charger adopts new advanced edge resonant soft-switching technology, which can
be plugged in and unplugged. Smart portable charger adopts new power consumption components, patented technology
manufacturing, smart three-stage charging, equal charge/float charge, constant current/constant voltage automatic
conversion function; Real-time online display, testing, recording of the voltage of a single cell or a whole set of batteries,
while storing or transmitting data to the PC; Large-screen LCD display, full English menu prompts, easy to operate, high
degree of intelligence, can set and control voltage, current, time, capacity and other parameters, automatically complete
the test and monitoring of various parameters of the battery pack; After charging, the detected data can be directly
uploaded to the PC through the RS232 interface or transferred to the U-disk on site; The supporting data processing
software processes the data information collected by the charge, analyzes the remaining capacity of the battery, and
generates various charts, which provides a scientific basis for analyzing the performance of the battery
1.2. DFT-6700 Tester Functions
LCD touch screen display with full English menu prompts, easy to operate with high automation, it can set the
Parameters of voltage, current, Tim, capacity, cycles No. and etc, and automatically complete the test monitor
of various parameters of the battery string.
Real-time online monitoring function: real-time online monitoring, display all test data: current, battery
string voltage, single-cell voltage, time, capacity, etc., while storing and transmitting the data to the PC,
displaying and printing various charts.
Automatic charge & charging function: It can set the high limit and low limit of the current, duration,
capacity and voltage of the charge/charge, and can cycle the charge and charging process.
Battery activation function: Set the charge and charging cycles No., and activate the battery string.
Automatic Stop function: It can automatically stop discharging/charging when any of the following
conditions are met: time to, capacity to, single-cell protection voltage to and the whole String of battery

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protection voltage to.
Protection function: If there is a voltage abnormality, automatically stop charging or discharging.
Calibration correction function of voltage and current display value: It mainly calibrates the total voltage,
current and single-cell voltage of the battery string.
U-disk data transfer function: charging, discharging, automatic charge or after the end of battery activation,
the collected data can be transferred to the U-disk, and then the U-disk will put / charge the collected data
transferred to the PC, after the supporting data processing software processing, display, print a variety of
charts. Provide a scientific basis for judging the advantages and disadvantages of whole Strings or Single
batteries.
1.3. DFT-6700 Tester Features
3- in-one of charging, single-cell testing, online monitoring with complete functions as one DFT-6700 Tester
for multi-purpose.
Smart three-stage charging, constant current charge, real-time online circuit testing of each single-cell
parameters.
The power consumption component adopts new efficient resistor, which is safe & redfree heat phenomenon
and has a long life.
The application of single-chip microcomputer to U-disk data transfer technology solves the problem of
large-capacity data storage.
After the end of charging/discharging, the data can be automatically generated after the data is transferred by
the U-disk or uploaded by the RS232 interface to the computer background processing, and the battery
performance is clear at a glance.
Portable design, convenient for users with strong mobility.

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1.4. Working schematic diagram

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1.5. DFT-6700 Technical Index
Item
Project
Technical indicators
AC input
3P4W input
380V 50Hz
Voltage variation range
323V-437V
Frequency variation range
50Hz±10%
DC output rated voltage
220V, 176V-264V
DC output rated current
20A
Output current limit range
(10%-100%)×rated current
DC output
Voltage Regulation precision
≤0.5%
Steady Current precision
≤0.5%
Ripple coefficient
≤0.1%
Productivity
≥94%
Dynamic response
≤200us
Insulation
insulation resistance
DC500V,>2M
Dielectric strength
AC1500V/50Hz,1min
Size
520×180×393mm
Weight
15kg
Display size
5 -inch LCD large color touch screen
Storage capacity
4M Flash
Note*: customized according to user needs

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Chapter 2 Shape & structure
2.1. The host schematic diagram
Figure 2-1 DFT-6700 series tester Host (images only for reference)

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2.2. Package List
S/N
Release Date
QC
QA
Item
Parts Name
Quantity
1
Host
1
2
String Voltage line
1-Red + 1-Black
3
Charge cable
1-Red + 1-Black
4
U-disk
1
5
Power Lead
1
6
Ground wire
1
7
Instruction manual
1
8
Box
1
Cell-Data-Case optional with PC Data Software
No. differ to 2V，4V，6V，12V etc
9
Cell-Data-Case
N rationed according to actual conditions
10
Cell-Data-Case voltage line（12-Red Cell +1-Black）
N Kit
11
Cell-Data-Case ramp （12-Red +1 Black）
N x (12+1)
12
Antenna
1

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2.3 Main Parts Pictures
Box
String Voltage line
Charge and charge cable
Cell-Data-Case voltage line
（12-Red Cell +1-Black Ground）
Cell-Data-Case（2V，6V，12V）
Antenna
Cell-Data-Case ramp （12-Red +1 Black）
Power Lead 220V

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Chapter 3 Connection
3.1. Preparations
Confirm that the voltage level of charged battery string is consistent with the charge tester!
Before connecting to the DFT-6700 Tester, first confirm that the charged battery string has exited the operating
state and has been disconnected from the charging power and load.Avoid accidents during charge.
There is enough space around the battery string and the DFT-6700 Tester,
There are No flammable and explosive materials around the site
There are No flammable and explosive gases in the air.
Check that the DFT-6700 Tester is in good condition and that the power switch is in an open state.
There must be no inflammable and explosive materials around the work.
The air must not contain flammable and explosive gases to prevent the occurrence of explosions!
3.2. Host connection
a) The Air (Control) Switch of the tester back should be in a closed position, if not, please close;
b) The host power switch is in the off position;
c) Plug in the host power lead;

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3.2.1 Charge cable connection
a) Connect the host side first, insert and tighten the black quick plug at the convex alignment charge tester black
quick connect socket notch, and the red quick plug at the raised alignment charge tester red quick connect
socket notch inserted and tightened;
b) Black charge cable large test clip connected to the battery string negative, red large test clip connected to the
battery string positive;
c) Now Can turn on the host power on;
Note:
a) If there is a spark found in the process of discharging the cable clip battery string electrode, please remove the
clip, stop the charge testing, and contact the THOMSON;
b) When wiring, first connect the DFT-6700 Tester and then connect the battery, and first remove the clip at the
battery end when disconnecting the wire;
c) When the coupling connector is connected to the quick connecting socket, it needs to be rotated and tightened
clockwise to prevent falling off! Rotate counterclockwise to remove at the end of charge.
d) It is forbidden to only operate the Air (Control) Switch on the back of the tester for stopping discharging,
please disconnect the open circuit by removing the charge cable clip!

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When connecting the charge cable and the voltage test cable, pay attention to safety to prevent electric shock
and short circuit！
3.2.2 Voltage test line connection
Due to the large charge current, in order to accurately measure the voltage of the battery string, a Special voltage
test line is provided. One end of the voltage test line is connected to the voltage test socket of the DFT-6700 Tester,
the other end of red clip is connected to the positive pole of the battery string (busbar), and the black clip is
connected to the negative pole of the battery string (busbar).
Be careful that Positive and Negative Terminals not to reversed!
3.2.3 Others
Connect the host antenna reliably to the antenna socket of the host of the DFT-6700 Tester.
3.2.4 Illustration of safe operating instructions:
After completing the wiring of the preparatory work, it is necessary to correctly select the Air-switch according to
the requirements of the operation.
3.3. Cell-Data-Case connection
Cell-Data-Case is for each-cell voltage sampling of max 12-Cell, which is with magnetized screws for easy fixing
standby.
12V Cell-Data-Case wiring mode (with independent power cable) as follows:
The power cord connection method of each case: the power supply negative (P-) is connected to the same position
as the Case line 0. The power supply is positive (P+) in the same position as the Case line 2 or 3. It is
recommended to connect the power cable first and then the voltage monitoring cable.
The first Case: Line 0 is connected to the 1st battery negative (total negative), Line 1 is connected to the 1st battery
positive, and Line 2 is connected to the 2nd battery positive... Line 12 section 12 battery cathode;
The second case: Line 0 is connected to the 13th battery negative (total negative), Line 1 is connected to the 13th
battery positive, and Line 2 is connected to the 14th battery positive... Line 12 section 24 battery positive pole;

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The wiring harness of the 2V Cell-Data-Case does not have a separate power cord. The wiring is as follows:
The first Case: Line 0 is connected to the 1st battery negative (total negative), Line 1 is connected to the 1st battery
positive, and Line 2 is connected to the 2nd battery positive... Line 12 section 12 battery cathode;
The second Case: Line 0 is connected to the 13th battery negative (total negative), Line 1 is connected to the 13th
battery positive, and Line 2 is connected to the 14th battery positive... Line 12 section 24 battery positive pole;

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Each Cell-Data-Case can monitor up to 12 batteries, if the number of batteries is less than the number of
Cell-Data-Case, the remaining voltage clamp can be clipped together at the positive pole of the last battery.

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3.4 PC connection
If real-time monitoring via a PC is required, Wi-fi of Tester and PC needs to be connected.
3.5.Running
After checking that the wiring is correct, turn on the power switch; then the LCD screen should be displayed
normally, now you can complete the setting of various test & charge parameters according to the operating
instructions

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Chapter 4 Functions and operating procedures
4.1. Starting Boot
Press the power switch on the back of the tester to activate the tester and enter the main menu of the DFT-6700
Tester. The main menu is as follows:
4.2. Battery Charge
In the main menu, press the icon "Charge Test" to enter the charge settings interface.
At this point, you need to set the site No., Battery string No., Voltage level, Battery type, batteries No., Nominal
capacity. Charge capacity; the parameters of the stop setting are automatically filled in, or you can also modify it
yourself.

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Finally, according to the actual situation, tick select to detect single-cell, or the single-cell is not monitored if not
tick the single-cell means.
After set the charge parameters and press the [Start] key to enter the charge state.
Press the [Charge Information] icon to enter the following interface
Press the [Charge Info] icon to enter the following interface:
Press the [V-I Trend] icon to enter the following interface:
In the main menu, press the "Charging Test" icon to enter the charging settings interface. As shown in the following
figure: