Nahita LNB003 User manual

Version 1, July 2021
Instruction Manual
NAHITA BLUE
SHAKING INCUBATOR
REFERENCE: LNB003

Version 1, July 2021
Thank you for choosing Nahita Blue Shaking Incubator. It is widely used in bacterial culture,
fermentation, hybridization and biochemical reactions, as well as enzyme and cell tissue
research, which have high requirements on temperature and oscillation frequency. It is an
important equipment in medicine, biology, pharmaceutical, food, environment and so on.
After you receive the product, please confirm whether it is the same as the one you ordered,
and then confirm whether the appearance of the product is intact and the random accessories
matches the packing list.
If the product model you received is inconsistent with your booking or the appearance is
damaged or there are not enough accessories, please contact your distributor.
1. Safety warning before operation
1
2. Product main features
2
3. Technical parameters
3
4. Operation and display instructions
4
5. Electric diagram
12
6. General failures and troubleshooting
13
Remember:
This manual describes in detail the product features, usage methods,
precautions, etc. For your better understanding, convenient and safe use of this
product, we recommend that you carefully read this manual before using it.
Content

1
Prohibitions
1．Read this instruction manual before using the product.
2．Do not put volatile, flammable and explosive material in the machine, otherwise could
cause explosion or fire.
3．Do not place the incubator in a place exposed to rain, moisture, or splashing, as this may
result in electrical leakage, short circuit, or electric shock.
4．Non-professional persons must not disassemble, repair or modify the equipment,
otherwise it may cause fire or electric shock to personnel due to improper operation.
5．Do not damage the power plug or the power cord. If it is damaged, the power cord must
be replaced. Otherwise, it may cause fire or electric shock.
Recommendations
1. This equipment should install on the firm ground, otherwise could cause staff injury
because of drop down of the equipment.
2. Please use the special power supply that indicated one the nameplate. This equipment must
install on the ground, otherwise could cause electric shock and fire because of electric
leakage.
3. Do not touch the power plug with wet hands, otherwise there is a risk of electric shock.
4. Before any repair or maintenance is carried out, the power must be disconnected to prevent
electric shock or injury.
5. Please wear gloves when repair and maintain the equipment in case of injury.
6. Do not to damage the power cord or use the non - specified power cord, do not connect the
power cord in the middle section and use long soft wire, otherwise it may lead to electric
shock or fire.
7. Do not remove the power plug during the operation, do not pull the power cord by pulling
the power cord.
8. If you find that the equipment is running abnormally, unplug the power plug immediately
and stop the equipment.
9. If the equipment is idle for a long time in the unsupervised area, please ensure that the
equipment door is completely closed.
Necessary considerations
❖Adjust the feet so that the equipment is installed horizontally, and all four feet should be
close to the support surface. There must be no vacant or false.
1. Safety warning before operation
The following items could cause serious injury or death.
The following items may cause personal injury,
equipment damage and related property damage.
The following items could cause staff injury
or equipment.

2
❖Use a separate power outlet fitted with a grounding wire. Tight the power plug when in
use.
❖Put off the power plug, before removing the equipment.
❖Carefully touch the inner wall of the door, which may be hot.
❖Nonprofessional technical staff could not disassemble the machine privately, professional
staff should repair and replace parts.
❖The internal parameters must be set by the specific management person to prevent the
function of the controller program from being disturbed by do not know setting operation.
❖The installation location of the equipment must be longer than 20 cm from the wall and
from the object.
❖Open or close the door gently. Rudely opening or closing the door can easily cause
damage to the equipment.
❖The surface of the equipment must not be exposed to volatile chemicals such as gasoline
or thinner.
❖Keep the inside and outside of the box clean, often cleaning debris and smudges.
1. The large screen LCD displays the temperature, speed and working time continuously,
accurately and in real time, and the menu operation interface is easy to operate.
2. Microcomputer controlled temperature and oscillation frequency, with timing function,
built-in power failure protection function, can automatically resume operation after normal
power supply.
3. The unique air duct of the workshop has a gentle breeze circulation, good temperature
uniformity, large observation window design, convenient observation of samples, convenient
opening and closing.
4. Speed control: DC brushless motor intelligent feedback control, high speed accuracy. Slow
start design, when the speed is out of control, automatic locking, adjustable start speed,
prevent the sudden start of the shake flask liquid spatter, effectively ensure the accuracy of the
quantitative experiment.
2. Product main features

3
Model / Code
642 / LNB003
Shaking Mode
Cyclotron Oscillation
Function
Amplitude
Ф20mm (orbital movement)
Temp. Resolution
0.1℃
Temp. Motion
±0.1℃
Temp. Uniformity
±1℃
Temp. Range
RT+5～65℃
Rotary Speed
30～300rpm
Rotary Speed Precision
±1rpm
Structure
Chamber Material
Mirror Stainless Steel
Outer Shell
ABS
Observation Window Material
Resin
Thermal Insulation Material
Polyurethane
Cooling System
No
Coolant
No
Heater
Stainless steel heating tube
Drive Mode
Three-axis level
Oscillating Plate
Spring Wire Rack
Air Circulation Mode
Horizontal convection
Power Rating
0.6kW
Controller
Temp. Control Mode
LCD PID intelligent control
Cyclotron Control Mode
Automatic changes of rotation direction
Setting Mode
Touch button setting
Temp. Display Mode
LCD display
Speed Display Mode
Timer
0～9999min
Operation Function
Fixed value operation, timing function, bidirectional automatic
switchover, auto stop, quick stop start
Temperature Sensor
Pt100
Speed Sensor
Hoare
Gating System
Yes
Additional Function
Deviation correction, menu keys locked, power-off memory
Safety Device
Over temperature alarm, menu locked, gating system,
power-off protection, plugging turn protection
Specification
Inner Chamber Size (W*L*H)
(mm)
455x380x290
Exterior Size (W*L*H)(mm)
500x640x480
Packing Size (W*L*H)(mm)
550x690x530
Shelf Size (mm)
380x320
3. Technical parameters

4
Shift key: left arrow, click Select to move to the left. Return to the head and return.
Reduce the key: down arrow, press the parameter value to reduce one number, hold down this
key, and the parameter value decreases continuously.
Increase the key: the upward arrow, press the parameter value to add a number, hold down
this key not to put, the parameter value continues to increase.
Time function key: Dial symbol, press enter timing parameter setting state, and press... Until
it returns to the normal interface.
Temperature function key: thermometer symbol, press enter temperature parameter setting
state, then click return to normal interface.
Speed function key: with arrowhead circle, press enter speed parameter setting state, then
press back to return to normal interface.
Bactericidal function key: purple with light symbol, long press 3 seconds, sterilize lamp light;
and then press for 3 seconds, sterilization lamp extinguished.
Lighting function key: bulb symbol, press the light to turn on and then close.
Max. capacity of shelf (ml/pc)
100mlx16, 250mlx10, 500mlx6
Number of flask clamp as
standard (ml/pc)
250mlx8
Inside Volume
50L
Shelf Load Bearing
≤10kg/layer
Shelf Layer
1
Power Supply (50/60Hz)
AC220V/2.5A
NW/GW (kg）
25/35
4. Operation and display instructions

5
Operation start / stop key: press the device to start running; then click stop.
1. Temperature internal parameters setting
Press the "temperature" key for about 3 seconds, the temperature display area displays the
password prompt "Lc", and the speed display area displays the password value.
By adding keys, reducing keys and shift keys, modify to the required password value. Then
click the "temperature" key, if the password value is not correct, the controller automatically
returns to the normal display state; if the password value is correct, then enter the temperature
internal parameters setting state, and then click "temperature" key to modify each parameter
in turn. After modification, press the "temperature" button for 3 seconds and exit the internal
parameter setting state, and the parameter value is automatically saved.
Internal parameter table -1
Parameter
indication
Parameter
name
Parameter function description
(Range) Factory Value
Lc
Password
The parameter value can be viewed and
modified when "Lc=3".
0
AL-
Upper deviation
Over
temperature
alarm
When the "temperature measurement >
temperature setting value +AL", the alarm light is
turned on, the buzzer calls, and the heating output
is disconnected.
(0～20.0℃)
5.0
Ct-
Compressor
start delay
Compressor start delay protection time, the
minimum time interval from compressor stop to
restart.
(0～600s)
180
uP-
compressor
Start threshold
When the compressor is working in an
intermittent manner,
If the "temperature measurement value ≥
temperature set value + uP" and the compressor
start delay time is up, start the compressor.
Note: This parameter is valid only in the manual
start and stop compressor mode, and is invalid in
the automatic mode.
(-10.0～10.0℃)
0.4
dn-
Compressor
Closing the
threshold
When the compressor is working in an
intermittent manner,
Turn off the compressor if "temperature
measurement value ≤temperature set value +
dn".
Note: This parameter is valid only in the manual
start and stop compressor mode, and is invalid in
the automatic mode.
(-10.0～(uP-0.1))
0.2
Lt-
Floodlight
off-delay
The light is opened and the time delay Lt time is
automatically closed. "Lt=0", the delay is invalid,
the lights must be turned off manually.
(0～9999min)
0
St-
Sterilizing lamp
off-delay
The sterilization lamp is opened and the time
delay St time is automatically closed. "St=0", the
delay is invalid and the lamp must be manually
closed.
(0～9999min)
0
T-
Control cycle
Heating control cycle.
(1～60s) 5
P-
Proportional
band
Time proportional adjustment.
(0.1～50.0) 15.0
I-
Integration time
The integral function is adjusted.
(1～2000s) 380
d-
Differential time
Differential action regulation.
(0～2000s) 100

6
Pb-
Zero adjustment
Correction of errors caused by sensor (low
temperature) measurement.
Pb= actual temperature value - instrument
measurement value
(-99.9～99.9℃)
0
PK-
Full degree
adjustment
Correct the error generated when the sensor (high
temperature) is measured.
PK=1000* (actual temperature value - meter
measurement value) / meter measurement value
(-999～999) 0
Internal parameter table -2
Parameter
indication
Parameter
name
Parameter function description
(Range) Factory Value
Lc
Password
When“Lc=9”,the parameter values
can be viewed and modified.
0
rES
Power down
memory
function
0：No power down memory function
1：Power-down memory function
(0～1)
0
FAn
Fan Type
selection
0：The fan is a short axis fan
1：Fan is a long shaft fan
(0～1)
0
ndc
Compressor
Operation
mode
0: the compressor is only working in a
discontinuous type.
1: compressor according to the value of CP (see
below) to determine the balanced or intermittent
work of the compressor.
2: compressor according to the value of Htd (see
below) to determine the balanced or intermittent
work of the compressor.
(0～2) 0
CP-
Compressor
working
mode fixed
switching
point point
When "ndc=1",
If the "temperature set value ≥CP", the
compressor works in an intermittent manner, and
vice versa.
(0～100.0℃)
30.0
Htd
Compressor
working
mode
automatic
switching
point
When "ndc=2",
If the "temperature set value ≥ambient
temperature + Htd", the compressor works in an
intermittent manner, and vice versa.
(-50.0～50.0℃)
0.0
Crc
Compressor
Start and
stop mode
When the compressor is working in an intermittent
manner,
0: Automatically start and stop the compressor
(according to the ambient temperature and set
value);
1: Manually start and stop the compressor
(according to the values of uP and dn in internal
parameter table-1);
(0～1) 0
Cnp
Prohibit
compressor
Working
temperature
point
When "temperature set value ≥Cnp", the
compressor is prohibited from working.
Note: This mode of operation has the highest
priority, that is, the controller executes this
command first, and then judges the balanced or
intermittent operation of the compressor.
(0～100.0℃)
42.0

7
nP-
Maximum
power
output
The maximum power percentage of the heating
output.
(0～100%) 100
Co-
Turn off the
heating
output
deviation
When the "temperature measurement value ≥
temperature set value + Co", the heating output is
turned off.
(0.0～20.0℃)
5.0
SPL
Lower
temperature
setting
Lower limit of temperature set point
(-50.0～100.0℃)
0.0
SPH
Upper
temperature
limit
Upper limit of temperature set point
(SPL～100.0℃)
60.0
Adr
mailing
address
The local communication address.
(1～16) 1
Internal parameter table -3
Parameter
indication
Parameter
name
Parameter function description
Factory value
Lc
Password
The ambient temperature can be viewed when
"Lc=18".
Ht
Ambient
temperature
The ambient temperature at which the controller is
located.
2. Speed internal parameters setting
Press and hold the “Speed”button for about 3 seconds. The temperature display area
displays the password prompt“Lc”. The speed display area displays the password value. You
can change the password value to the required password value by adding the key, decreasing
key and shift key. Then click the “Speed”button. If the password value is incorrect, the
controller will automatically return to the normal display state. If the password value is
correct, it will enter the speed internal parameter setting state, and then click the “Speed”
button to modify each parameter in turn. After the modification, press and hold the “Speed”
button for 3 seconds to exit the speed internal parameter setting state, and the parameter value
is automatically saved.
Note: The speed parameter is forbidden to be modified during the running of the controller. If it needs
to be modified, please stop the controller and then modify it.
Speed---internal parameter table (1)
Parameter
indication
Parameter
name
Parameter function description
(Range) Factory Value
Lc
Password
The parameter value can be viewed and
modified when "Lc=3".
0
Pd-
Proportional
Speed proportional gain.
(1～100) 10

8
gain
Id-
Integral
coefficient
Speed integral coefficient.
(1～100) 5
InT
Acceleration
time
The time it takes for the motor to accelerate
to the new setpoint.
(1～60) 10
dET
Deceleration
time
The time it takes for the motor to decelerate
to the new setpoint.
(1～60) 10
SdL
Speed
setting lower
limit
Minimum value of speed setpoint
(20～6000) 20
SdH
Speed
setting upper
limit
Maximum speed setting
(SdL～6000) 600
Speed---internal parameter table (2)
Parameter
indication
Parameter name
Parameter function description
(Range) Factory Value
Lc-
Password
The parameter value can be viewed and
modified when "Lc=9".
0
EAr
Gear ratio
Big gear diameter / pinion diameter.
(1.0～10.0) 3.2
PoL
Motor pole
number
DC brushless motor pole pairs.
(1～32) 4
dIF
Motor rotation
Reference
direction
dIF=0: Specifies that the clockwise
direction of rotation is positive
dIF=1: Specifies that the
counterclockwise direction of rotation is
positive
(0～1) 0
FdS
Speed feedback
value
Speed feedback coefficient value
(0.1～10.0) 1.0
FdC
Current
feedback value
Current feedback system value
(0.1～10.0) 1.0
FrE
Carrier
frequency
Frequency modulation frequency of
brushless motor carrier
Note: when the carrier frequency is
changed, the controller needs to be
restarted.
(5～15) 15
Po-
Motor power
Brushless motor power
Note: users adjust this parameter
according to the actual power of the
motor.
(1～400)
Low voltage driver: 80
High voltage driver: 200
CL-
Overflow
multiple
Allowable current multiplier for
overcurrent protection of motor
(1.0～10.0) 5.0
Fr-
Rotation
direction
selection of
motor
0: The motor only runs in forward
rotation;
1: The motor only runs in reverse;
2: The motor can run in reverse direction;
(0～2)
0
db-
Display
Speed display insensitive area
(0～100) 2

9
Insensitive area
dF-
False display
interval point
When the speed set value ≥dF, both
the speed set value and the speed display
value are false display values.
(0～6000) 6000
3. Time setting
1. When Fr is set to “0”or “1”in “Speed---Internal Parameter Table (2)”, it can only
be forwarded or reversed: press the “Time”button, the number on the right side of the time
display area will flash. Use the “◀”shift button, “▼” decrease button, “▲” increase
button to set the running time, press the “Time”button again to return to the work interface,
and the time display area displays the set total. Timing time, the number decreases with the
running time, and the integer stops. Finally, it stops and the buzzer sounds. Press any key and
the buzzer will stop.
2. When Fr is set to "2" in "Speed - Internal parameter table (2)", there is a positive and
negative function: Click the "Time" button to enter the total timing setting state, and the time
display area flashes. You can use the '◀' shift key, '▼' decrease key, '▲' increase key to
modify the desired set value; then click the“time”key to enter the forward rotation time (the
prompt Fd is displayed on the right). ) Set the status, modify the desired setting value by
shifting, reducing, increasing, etc.; then click the“Time”button to enter the stop timing time
(the right display prompt p-) setting status, Also modify to the desired setting value; then click
the“Time”button to enter the reverse timing time (the right display prompt Rd) setting state,
also modify to the desired setting value; then click the “Time”button , returns to the normal
display state. Complete the time setting.
Note: The total time can be selected in minutes and hours; the forward, stop, and reverse
timings are minutes.
3. Press and hold the “Time” button for about 3 seconds. The temperature display area
displays the password prompt “Lc”, and the speed display area password value is modified to
the required password value by the increase, decrease and shift keys. Then click the “Time”
button. If the password value is incorrect, the controller will automatically return to the
normal display state. If the password value is correct, it will enter the time internal parameter
setting state, and then click the “Time” button to modify each parameter in turn. Press and
hold the “Time” button for 3 seconds to exit this state and the parameter values are
automatically saved.
Time---internal parameter table
Parameter
indication
parameter
name
Parameter function description
(Range) Factory
Value
Lc-
Password
The parameter values can be viewed and modified when
"Lc=3".
0

10
ndt
Timing mode
selection
0: Start timing after running, running time is up, only stop
speed, non-stop temperature
1: Start timing after running, run time arrives, stop speed
and temperature simultaneously
2: The temperature starts to count after reaching the set
value. The running time is up, only stop speed, non-stop
temperature.
3: When the temperature reaches the set value, the timing
starts, the running time arrives, and the speed and
temperature are stopped at the same time.
When the timing starts, “m”or “h”starts to flash, and
after the time is over, the time display area displays“End”.
Note: This parameter is prohibited from being modified
during operation.
(0～3)
1
Hn-
Total timing
Timing mode
0: Timing is measured in minutes
1: Timing is measured in hours
Note: This parameter is prohibited from being modified
during operation.
(0～1) 0
rT-
Total timing
Time correction
Correct the total timing timing error,
Correction value = [run time (seconds) - actual time
(seconds)] * 10 / actual time (minutes)
(-999～999) 0
4. Buttons and operation instructions
1. Power on: Turn on the power, the controller is powered on, the temperature display window
displays “HY-2”, the speed display window displays “8888”, the time display window
displays “8888”, all the identifiers light up, and enters after about 3 seconds. Normal display
status.
2. Temperature: Press the “Temperature”button, the number on the right side of the
temperature display area flashes, use the “◀”shift button, “▼” decrease button, “▲”
increase button to set the desired temperature, then press the “Temperature”button exits the
temperature setting state, and the set temperature value is automatically saved, and the
instrument operates according to this temperature value.
3. Speed: Press the “Speed”button, the number on the right side of the speed display area
flashes, use “◀”shift button, “▼” decrease button, “▲” increase button to set the
required speed, press again the“Speed”button exits the speed setting state, and the set speed
value is automatically saved, and the instrument runs at this speed value.
4. Time: When the total timing is set to “0”, it means that there is no timing function and the
equipment is running continuously. The timing function setting is set by referring to the
description in item 8 above.
5. Sterilization: When “St=0”, long press the “sterilization”button for 3 seconds, the
identifier “STERILIZE”under the interface lights up, the UV lamp is turned on, the device
is in sterilization operation; and then press the “sterilization”button. In 3 seconds, the
identifier "STERILIZE" is extinguished and sterilization is stopped. The sterilization lamp off
delay setting is set by referring to the description of "Temperature - Internal Parameter Table
(1)".

11
6. Operation control: Press the “Start/Stop” button, the identifier “RUN” at the lower right of
the interface will light up and start to turn; press the “Run/Stop” button again, the identifier
“STOP” at the bottom right of the interface will light and stop rotating.
7. Gating: During operation, open the door, the interface identifier “OPEN” lights up, the
rotation stops, the door is closed, the identifier “OPEN” goes out, and the rotation continues.
8. Lighting: When “Lt=0”, click the “Lighting” button to turn the light on and off. The
illumination off delay setting is set by referring to the description of “Temperature---Internal
Parameter Table (1)”.
5. Function setting description
1. Timing function
When the total timing time is set to “0”, it means that there is no timing function, the device
runs continuously; when the total timing time is not “0”, the timing is started according to the
timing mode, “m”(time in minutes) or “h”(timed by hour) flashes, the motor stops when the
timer ends, the time display area displays “End”, the buzzer sounds, and the “start/stop”
button is clicked to restart the operation.
Notes: 1) If the set value of the timing time is changed during the running, the controller
restarts the timing according to the new set time.
2) The timing mode can be selected by modifying the "ndt" value in the "Time--Internal
Parameter Table".
3) The timing mode can be selected by modifying the "Hn" value in the "Time - Internal
Parameter Table".
2. Power failure memory function
You can select whether there is a power-down memory function by modifying the value of
“rES”in “Temperature-Internal Parameter Table (2)”.
1) No power-down memory function (rES=0): the controller is powered off after power
failure, and the speed is stopped.
2) There is power-down memory function (rES=1): the controller is powered off after
power-off, and the speed is in the running state at the last power-off.
6.Alarm and shutdown
1. When the power module failure (Er-1), Er-2, Holzer error (Er-3), busbar undervoltage
(Er-4), busbar overvoltage (Er-4), busbar overvoltage (Er-5), communication fault (Er-6), the
identifier "ALM2" is lit, the controller is automatically stopped and the buzzer calls. Please
turn off the power when the fault occurs, carefully check the wiring of the motor, and make
sure it is correct again.
2. When the over temperature alarm occurs, the buzzer sounds and the "ALM1" identifier

12
lights up. If an over-temperature alarm occurs due to changing the temperature set value, the
"alarm" light is on, but the buzzer does not sound.
3．When the buzzer sounds, you can press any key to stop.
4. If there is no key pressed within 1 minutes in setting state, the controller will automatically
return to the normal display state.
5. If the display window of the controller shows "-" to indicate the fault of the temperature
sensor or the controller itself, please check the temperature sensor and its wiring carefully.
6. When you turn off the machine, press the "Start / Stop" button to stop turning, then turn off
the power switch on the right side of the instrument, and turn off the whole machine.
5.Electric diagram

13
Failure phenomenon
Fault analysis
Troubleshooting
Open machine without
display
Power supply is not connected
Check if the power outlet with voltage
The power plug is not plugged
in
Check the reliability of the contact
between the power plug and the socket
The power switch is not open
Turn on the power switch on the right side
of the instrument
The damage of the fuse on the
box
Replacement of a power fuse with the
same specification
Rolling plate does not rotate
Door switch does not work
Check whether the door is closed or not.
The bottom of the rolling plate
is stuck with foreign objects
Remove foreign body
Belt damage
Notify distributor to replace the belt
Control circuit fault
Notify distributor to repair
Instability of rolling plate
The instrument is not placed
smoothly
Adjust the foot of the instrument to make
the instrument smooth
Foreign body barrier at the
bottom of the plate
Remove foreign body
Control circuit fault
Notify distributor to repair
The measured temperature is
higher than the set
temperature or the instrument
enters the high temperature
alarm state
The door is not closed well
Close the door well
The instrument has not yet
entered the state of constant
temperature
Wait for a moment to observe again
Damage of circulating fan
Notify distributor to replace the fan
The noise of the incubator is
too loud
The incubator is not placed
smoothly
Adjust the foot to make the incubator
smooth
Flask clamp fixing screw loose
Remove the rocker with the tool fasten
screw
Shake plate loosening
Tighten the fixing screws at the four
corners of the rocking plate
Bump on the bottom of the
plate with foreign objects
Remove foreign body
Mechanical failure
Notify distributor to repair
6.General failures and troubleshooting