Nahita LGB004 User manual

English
User’s manual for LGB004 Version 1, July 2023
LGB004
Multi tube vortex mixer
safety rules
☆For safety reasons, please read the operating manual carefully before starting the
operation!
☆Components subjected to heat, humidity, and biological changes can lead to
functional degradation and even loss of safety, leading to accidents!

English
User’s manual for LGB004 Version 1, July 2023
Catalogue
preface………………...................………..................………………………. 3
Instrument usage environment ………………………………….............….3
Safety tips ……… ……………………………..............……..................…3-4
1.Product brief.........................................................…………………….…………...5
2. Product model and its main technical parameters…………… ……….......... 6
3. Introduction to the appearance and functions of the multi tube vortex
mixer ……………........................................................................….……..….....….7-8
4. Operating Instructions ………………………………...……………..…8-11
4.1Introduction to the Installation of Test Tube Mats …........................………..9
4.2 Turn on/off the power supply………………………………..................…10
4.3 Operating a multi tube vortex mixer………………………..........…….....10
5. Maintenance matters…………………………………….........................…......11
6. List of Test tube rack ..........................................………………………….......12
7. Fault alarm information......…………………...........……………………..13-14
8. Warranty (repair) basis ………………………….....................…………........15
9. packing list …………………………………………………..................………16

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User’s manual for LGB004 Version 1, July 2023
Foreword
This manual is copyrighted by Our companyl, and no one may reprint or distribute any of the
contents of this manual, including pictures and audiovisual materials.
The equipment operator can copy some chapters of this operation manual, but only for
internal use, for example, to guide the user.
How to handle emergencies. The contents of these chapters are clearly marked in the manual table
of contents.
Our companyl is not responsible or liable for any damage to the instrument caused by the
user's failure to declare the "environment for the use of the instrument" in accordance with the
manual.
Our companyl Corporation reserves the right to modify the contents of the operating manual
at any time without proper notice.
Instrument use environment
To ensure the continued safety of the machine, the following factors
may damage the instrument:
-Chemical effects;
-Environmental impacts, including natural ultraviolet radiation;
-Corrosion and wear of protective cover parts and
other safety parts.
* Indoor use;
* Altitude: ≤2000m;
* The applicable ambient temperature range of the instrument is + 5 ℃~ + 40 ℃;
* The applicable relative temperature range of the instrument is ≤80%;
*Applicable scope of instrument working power supply product model and its main
technical parameters;
* Adequate ventilation must be installed indoors;
* There are no vibrations or air currents that affect performance;
* There is no conductive dust explosive gas and corrosive gas in the surrounding air;
safety warning
* For the first time using this machine, please read this manual carefully!
* The mixer may only be operated by trained and authorized personnel;
* The maintenance of the equipment can only be completed by Our companyl or its
authorized agents;
* The following materials are strictly prohibited in the instrument:
-Flammable and explosive materials;
-Strongly chemically active materials;
-Toxic or radioactive substances, or pathogenic microorganisms, etc.
* Only qualified maintenance personnel should use appropriate tools to perform repair

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User’s manual for LGB004 Version 1, July 2023
operations on the mixer system.
* If the operator encounters a situation not mentioned in this manual, please contact
Our companyl or an authorized agent of Our companyl to inquire about the correct
treatment method.
* Try to use the accessories provided by Our companyl, if the user wants to use other
accessories, Our companyl will not be responsible for the adverse consequences.
But users can apply to Our companyl to verify whether the accessories meet the
requirements of Our companyl.
* The mixer must be inspected and maintained at regular intervals.
Safety warning sign description
Note: Please read the instruction manual carefully before using the
instrument!
Note: Danger of high voltage! Danger of electric shock!
Meaning of safety instructions
In order to avoid harm to the surrounding people or damage to surrounding objects
and the environment, you must follow all safety instructions in this user manual.
Except for accident prevention, environmental protection, and recognized professional
rules on safety and occupation, including the laws and regulations of the country
where the user is located and the installation of this instrument, they must be carefully
followed.
Consequences of neglecting safe operating procedures
Any action that ignores safe operating procedures, laws and regulations and various
rules will lead to harm to people, objects and the environment.
Safety Precautions
* Never plug or unplug the power plug or toggle the power button when
the liquid is in your hands!

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User’s manual for LGB004 Version 1, July 2023
* Never plug or unplug the power plug while the instrument is live!
* It is strictly forbidden to maintain and scrub the instrument while
the power is on!
* It is strictly forbidden to carry out shaking operation when the sample
capacity exceeds 70% of the test tube capacity.
The container must be covered!
* It is strictly forbidden to install the instrument on the uneven,
shaking and shaking work surface!
* When installing the gasket or fixture, make sure that it is in place
to prevent the gasket and fixture from flying out during work!
* Do not oscillate more than the maximum load of the instrument!
I. Product Brief:
Our companyl vortex mixer adopts international advanced
design concepts and manufacturing technologies, and has the
advantages of smooth and beautiful appearance, compact and firm
structure, high versatility, simple operation and other
advantages. The device is very suitable for the necessary
conventional instruments for fixing, shaking and mixing
various reagents, solutions and chemicals.
Product model and its main technical parameters

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User’s manual for LGB004 Version 1, July 2023
1.Product brief：
This multi tube vortex mixer adopts a user-friendly programming
design, with built-in continuous/pulse/jog operation modes; The multi
tube vortex mixer can mix and process 54 samples at once, equipped
with three types of sponge pads as standard, to meet the needs of vortex
mixing in different specifications of test tubes, making the
experiment more convenient and efficient; It is mainly applicable to
the inspection of pesticide residues, veterinary drug residues, food
additives, drug analysis, Drug development and other scientific
fields in food safety. It shows incomparable advantages in handling
a large number of sample mixing, saving time and effort. Automatic
mixing improves the repeatability of experimental methods and the
recovery rate of tested samples.
Advantages at a Glance:
1. Equipped with safety protection operation: equipped with a one
button emergency stop button, which can immediately stop the machine
operation with one button in case of an emergency;
2. Standard configuration 1.5/2.2ml ×54 wells, 15ml ×54 holes,
50ml ×20 hole sponge pad Test tube rack, non-standard size can be
customized to meet the needs of test tubes of different
specifications;
3. Humanized program design, with built-in continuous/pulse/jog

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User’s manual for LGB004 Version 1, July 2023
operation modes. After running, it displays "End" and emits a beep
sound;
4. It has a soft start, uniform acceleration, and can be used as a
shaking table for sample cultivation at lower speeds;
5. Pulse mode: Built in with 10 fixed intermittent operating times,
fast operation without the need to adjust cumbersome parameters;
6. The perfect optimization design of the body structure ensures
sufficient counterweight weight and circumferential eccentric
balance operation, providing a stable and quiet working platform for
various oscillation mixing;
7.3 inch LCD highlight screen, with clear and real-time online
settings and operating parameters;
8.10 built-in Stored procedure numbers, which can quickly save the
current experimental operation records for switching between
different experimental parameters;

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2.Product model and its main technical parameters
／at23℃ambient temperature
Product model
LGB004
Input power supply
AC100-250V/50/60Hz
Input power [W]
60W
Speed range
200~2500r/min.
Speed accuracy
±15rpm
control mode PWM stepless speed regulation
Operation mode Continuous/Pulse/Jog
Programmable parameter
storage
10 built-in Stored procedure numbers
Oscillation mode circumference
Circumferential diameter 3.6mm
Time function/display
Digital timing 1s-999min; Continuous: Countdown; Jog: positive timing;
vein
Speed regulation
function/display
Impulse: intermittent time/highlighted LCD
Maximum load
5Kg
Fastest linear acceleration
time
≈15s
Fastest linear deceleration
time
≈13s
Security protection
operation
Equipped with one button emergency stop button
Size: Long
×
wide
×
high
416×294×440mm
weight
23KG
Protection level
IP20
Permissible ambient
temperature/relative
humidity
+5-40℃/80%
Interference suppression
standard
EN 61010-1,EN 61010-2-020,EN 61326-1,EN 61010-3-2/A2

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User’s manual for LGB004 Version 1, July 2023
3.Introduction to the appearance and functions of the multi
tube vortex mixer
A. Test tube pressing plate B. Lock nut C. Upper test tube pad
D. Test tube rack E. Lower test tube pad
F. Test tube fixed disk G. Operation panel H. Power switch I.
Power cord socket
The above image shows the LGB004 multi tube vortex
mixer (exterior schematic diagram 1)
The above figure shows the LGB004 multi tube vortex
mixer (functional schematic diagram 2)

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Explanation shown in Functional Schematic Diagram 2
1. EMERGENCY/STOP emergency stop button.
2. MENU Menu key is used to switch time/speed keys and program
stored/pulse parameter selection.
3. Upward button, the button for increasing the value of the selected
parameter.
4. Downward key, the button for decreasing the selected parameter value.
5. Confirm key, after adjusting the parameters, press this key to confirm.
6. Pulse mode, set for intermittent operation.
7. Stop/Start key.
8. Click the button to momentarily oscillate.
9. Speed display area, unit r/min.
10. Dynamic symbol of operation.
11. Stored procedure display area 0~9.
12. In pulse mode, set the display area for the number of runs.
13. In pulse mode, the operating time corresponds to the gear position.
In pulse mode, the stop light strip time corresponds to the gear position.
4.Operating Instructions
Attention: Before using the instrument, please ensure that there
is no damage during transportation!

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User’s manual for LGB004 Version 1, July 2023
*Before receiving the instrument, please observe whether there are
scratches, screws falling off, and other phenomena during
transportation!
*Do not press the test tube pad tightly for a long time before the machine
is in an unused state!
*It is strictly prohibited to install the instrument on uneven, shaking
and vibrating workbenches!
*It is strictly prohibited to perform shaking operations when the sample
capacity exceeds 70% of the test tube capacity. To prevent liquid overflow,
the container containing the sample must be covered!
*The locking nuts on the left and right sides of the test tube fixing
pressure plate must be tightened!
*When installing the fixed pressure plate and sponge pad of the test tube,
it is necessary to confirm that they are installed in place to prevent
the test tube and sponge pad from flying out during operation!
*If an emergency occurs during use, immediately press the emergency stop
button!
*After using the instrument, please cut off the power!
4.1【Introduction to the Installation of Test Tube Mats】
Place the instrument in a suitable operating area, plug in the power, ensure that
the power is in the OFF state, and select the required test tube pad as shown in
the above image.
【The operation method is as follows:】
1. Firstly, loosen the locking nuts on both sides, remove the upper cover
pressing plate, and then take out the test tube pad;
2. Place the lower test tube pad flat in the test tube fixing plate;
3. Select the desired test tube pad and place it flat and centered on the lower
test tube pad;
4. Select a test tube or container with a lid and place it evenly in the test tube
pad;
5. Place the upper test tube pad evenly above the test tube or container in a

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User’s manual for LGB004 Version 1, July 2023
centered manner (note: the thickness of the upper test tube pad is 50mm, and
the thickness of the lower test tube pad is 35mm, please do not place it
incorrectly);
6. Install the two holes on the upper cover pressing plate horizontally on the
protruding smooth rods on both sides of the machine, press the upper cover
pressing plate tightly and tighten the lock nuts on both sides (note: be sure to
press the upper cover pressing plate tightly and tighten the lock nuts on both
sides to prevent the test tube pad and test tube from flying out at high speed);
7. Turn on the power and turn on the switch for operation.
4.3【Operating a multi tube vortex mixer】
1. Turn on the power, and the instrument is in an unset mode state.
2. When using LGB004-1, LGB004-2, and LGB004-3 standard test tube gaskets,
the maximum speed limit is 2500rpm (please refer to the list of six
fixtures for each type of test tube gasket). Press the MENU button, and
the speed display will flash. Use the up and down adjustment buttons to
adjust the desired speed.
3. When using any test tube pad in LGB004, evenly place the sample to be
mixed and switch to continuous mode, jog mode, or pulse mode;
4. Select continuous mode operation: press the MENU key and the space on
the speed bar will jump to set the desired speed; Pressing the MENU key
causes the minute bar to flash, setting the desired minute; When pressing
the MENU key, it flashes in seconds and sets the required second time;
After setting the above speed, minutes, and seconds, press the Enter key
and then press the Start/Stop key. The instrument will run at the set speed
and time, with the time counted down. When the predetermined time is
reached, the instrument will automatically stop. The display screen in
the time bar displays End, and the instrument will emit a "drip" stop
prompt sound.
5. Operation in pulse mode: Press the pulse mode, the yellow indicator
light will light up, and the number of pulse running segments will flash.
Then, press the Menu key to flash, and press the up and down adjustment
keys to set the running time gear; Press the Menu key again to flash, press
the up and down adjustment keys to set the stop time gear; After setting
up, press the Enter key and then press the Start/Stop key to run; The time
is countdown, and when the cycle ends, the "End" prompt sound will be

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displayed in the time bar for 3 times. The time column set to wait in pulse
mode shows the countdown. The Decimal separator of the last number flashes
with the countdown time, and the pulse indicator flashes with the
operation.
The pulse mode operation time and stop waiting time are 1-9 gears
respectively, and the corresponding time for each gear is as follows:
Run time file (in seconds) Stop waiting time file (in seconds)
1=5 1=10
2=10 2=15
3=15 3=20
4=20 4=25
5=25 5=30
6=40 6=40
7=60 7=60
8=90 8=70
9=120 9=90
1. Operation in jog mode: Press and hold the Flash key, the time is positive,
and the speed increases from 200rpm to 2500rpm in increments of 10rpm.
2. Emergency stop button: If a test tube breaks or the test tube pressing
plate locking nut is not tightened and the test tube pad flies out during
operation, immediately press the emergency stop button and the machine
will stop running immediately;
(Note: When the fault is resolved, please turn out the emergency
stop button before starting the instrument again.)。
5.Maintenance matters
Do not attempt to clean the instrument when the power cord is plugged in
or the power switch is turned on. If the equipment or accessories are
contaminated by pathogenic, toxic, or radioactive substances, it is the
responsibility of the user to carry out appropriate purification. When
developing a "Laboratory Biosafety Manual", it is necessary to explain
this. When there are other requirements for cleaning and decontamination
mentioned in this chapter, please contact our company to check if they
may damage the equipment. If you plan to return the equipment or
accessories to our company or request repair, you must ensure that the
equipment or accessories are clean and do not cause harm to human health!
Organic solvents cannot be used as they can decompose the lubricating
grease inside the motor bearings; During the cleaning process, liquids,
especially organic solvents, should not come into contact with the motor
spindle and bearing balls!
5.1 Do not use sharp objects to collide with the fixture. During
transportation and disassembly, it is necessary to prevent collisions,

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and to prevent cracks in the fixture and host during use due to scratches
or external injuries.
5.2 Regularly inspect fixture components (especially plastic brackets)
for corrosion spots, grooves, and small cracks. If any of the above
conditions are found, please stop using and contact the production
unit.
When disassembling the fixture, lift both hands vertically upwards and
do not shake left or right!
5.3 When cleaning the fixture, please use neutral detergent to wet sponge or cotton
cloth, and then use distilled water to clean the detergent. Do not sprinkle or spray the
rotor with water, as the liquid may be carried away and cause corrosion. Allow to dry
upside down after cleaning.
5.4Carefully wipe the surface of the instrument with a soft cloth dipped in neutral
detergent, and then remove the detergent with a clean damp cloth.
5.5 If there are major issues with the instrument, such as the inability to operate under
normal power supply, burning odor inside the machine, broken fixtures, and severe
shaking during operation, please contact the manufacturer or authorized distributor in
a timely manner. It is not allowed to repair without the guidance of professional
maintenance personnel!

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6.Fixture List
Name
Model/spee
d
use to
picture
Test tube
gasket
Standard
configurat
ion
LGB004-1
Max.2500rpm
Used to place test tubes
and small containers with
a diameter of no more
than 10mm, with a total of
54 holes.
Test tube
gasket
Standard
configurat
ion
LGB004-2
Max.2500rpm
Used to place test tubes
and small containers with
a diameter of no more
than 15mm, with 54 holes.
Test tube
gasket
Standard
configurat
ion
LGB004-3
Max.2500rpm
Used to place test tubes
and small containers with
a diameter of no more
than 27mm, with a
number of 20 holes.

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User’s manual for LGB004 Version 1, July 2023
7. Fault alarm information
The following table lists the alarm information and related fault causes and
handling methods emitted by the machine. You can follow the prompts to
troubleshoot; If the user cannot troubleshoot after trying or the alarm
message sent is not listed below, the user should immediately contact our
company's maintenance personnel.
After an abnormality occurs, the power should be turned
off first and restarted after the fault is resolved.
Table 3: Fault alarm information
Fault
codes
Code Definition
Troubleshooting
E2 overspeed Speed up too fast, lower the gear up;
E3 Emergency stop switch ①
System emergency stop;
E4
Hall fault
②Check if there is an open circuit at both ends of the
outlet wire of the emergency stop switch detection switch
(the button should be in a rotated out state);
E5
Brake overpressure ①The motor Hall detection is incorrect;
E7 No speed measurement ②Check if the Hall plug of the motor is properly connected;
E8 Communication
error
①Check if the brake resistor is properly connected or if
the brake resistor is burnt out;
E9 Brake overpressure ②Reduce the DEC value;

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Table 2: Fault Symptoms, Causes, and Troubleshooting
Methods
Fault
phenomeno
n
Fault causes and troubleshooting methods
The instrument
does not rotate
1. Check if the power socket and wiring are in good condition, and if the power
socket is charged.
2. Is the power switch in poor contact.
3. If it cannot be ruled out, please contact the manufacturer's maintenance
personnel.
Sudden stop
during instrument
operation
1. Check if the power connection is in good condition.
2. Does the instrument have a burning odor? If so, please immediately unplug
the power and contact the manufacturer's maintenance personnel.
3. The voltage range may be too large. Check if the power supply voltage meets
the requirements of AC100-250V.
The instrument
has high vibration
and noise
1. Check if the instrument is placed on a horizontal desktop.
2. Check if the test tube pressure plate is tightly pressed.
3. Check whether the locking nuts on both sides are tightened.
4. Check the fixed plate of the test tube and rotate it by hand. If it cannot rotate
smoothly, there may be a problem with the transmission shaft or motor. If it
cannot be ruled out, please contact the
manufacturer's maintenance
personnel.
After turning on
the power switch,
the screen does
not light up
1. The power supply is not connected, check the power distribution.
2. Is the button indicator light on the panel on? If not, please contact the
manufacturer.
3. If it cannot be ruled out, please contact the manufacturer's maintenance
personnel.
Panel buttons Please contact the manufacturer's maintenance personnel!
No response Please contact the manufacturer's maintenance personnel!

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8.Warranty (repair) basis
The warranty period (warranty period) starts from the user receiving the product.
During the warranty period, if the product malfunctions, the production unit or
authorized sales company maintenance personnel of the production unit are
responsible for free on-site repair. If the necessary replacement parts are caused by
their own quality rather than human misuse, they can be replaced for free, otherwise
they must be paid. The shell is not covered by the warranty!
Warranty (repair) basis
Users operate according to the requirements of this user manual;
The implementation of installation, debugging, moving positions, adding
accessories, and maintenance work is the responsibility of the production unit or sales
company authorized by the production unit, designated or specialized personnel;
Regular maintenance is carried out according to the methods specified in this
user manual;
If the above requirements are not met, i.e. damage caused by improper user use,
the production unit or authorized sales company of the production unit is responsible
for repairing, but it is not free of charge.
Our company guarantees that within 18 months after the sale of the machine, any
quality issues related to the machine (excluding damage caused by improper user use)
will be covered by our company's warranty. Beyond the warranty period, repairs will
be charged.

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User’s manual for LGB004 Version 1, July 2023
9.packing list
Serial
Number
name numb
er
notes
1
main engine 1
2
Standard test tube pad
LGB004-1~LGB004-3 1
3
Additional test tube pad According to
the order
contract
4
Certificate of Conformity 1
5
Quality Assurance Page 1
6
Operating Instructions 1
7
Power cord 1
When unpacking, please check in a timely manner. If
there are any discrepancies, please contact the
production unit or authorized sales company of the production
unit in a timely manner!

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Maintenance records
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