BioLAB BHMS-104 Manuale utente
Operation Manual
HotPlate Magnetic Stirrer
BHMS-104
Thank you very much for Choosing Biolab products. Please read the“Operating Instructions” and “Warranty”
before operating this unit to assure proper operation.
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HotPlate Magnetic Stirrer BHMS-104
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Index
1. Safety Instruction and Installation............................................................................................03
2. User Instruction................................................................................................................................06
3. Troubleshooting and Maintenance..........................................................................................13
4. Warranty.............................................................................................................................................14
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01Safety Instructions and Installation
1.1 Safety Instructions
Warning!
Read the operating instructions carefully before use.
• Ensure that only trained sta works with the instrument.
Risk of burn!
• Caution when touch the housing parts and the hotplate which can
reach temperature of 340°C.
• Pay attention to the residual heat after switching o.
Protective ground contact!
• Make sure that the electrical socket is grounded (protective ground
contact) before use.
a. When operating wear personal safety protection to avoid the risk from:
- Splashing and evaporation of liquids
- Release of toxic or combustible gases
b. Use the instrument in a spacious area on a stable, clean, non-slip, dry and reproof surface. Do not
operate the instrument in explosive atmospheres, with hazardous substances or around water.
c. Gradually increase the speed, reduce the speed if:
- Stirring bar breaks away due to high speed
- The instrument is not running smoothly, or the container is not centered on the plate.
d. Temperature must always be set to at least 50°C lower than the ash point of the media used.
e. Be aware of hazards due to:
- Flammable materials or media with a low boiling temperature
- Overlling of media
- Unsafe container
f. Process pathogenic materials only in closed vessels.
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g. If the case of the stirrer bar is PTFE, please note:
- Elemental uorine, three uoride and alkali metals will corrode the PTFE and Halogen alkalies make
it expand at room temperature
- Molten alkali, alkaline earth metals or their solution, as well as the powder in second and third
ethnic of the Periodic Table of Elements will have chemical reaction with PTFE when temperature
reaches 300 ~ 400°C.
h. Check the instrument and accessories prior to each use. Do not use damaged components. Safe
operation is only guaranteed with the accessories listed in the “Accessories” section. Accessories
must be securely attached to the device and must be removed when not in use. Always disconnect
the power before tting accessories.
i. When using the external temperature sensor, the tip of the measuring sensor must be at least
5-10mm from vessel’s bottom and wall.
j. The instrument can only be fully disconnected from the main power supply by turning o the main
or disconnecting the plug.
k. The voltage stated on the label must correspond to the main power supply.
l. Ensure that the main power supply cable does not touch the hotplate. Do not cover the device.
m. The instrument must only be operated by adults.
n. Keep away from high magnetic elds.
1.2 Proper Use
The instrument is designed for mixing and/or heating liquids in laboratories:
• Do not use more than 2000 meters above sea level
Temperature between 0°C and 40°C
• Installation Type: Product is designed to connect the indoor outlet, where voltage uctuation is
not more than ±10% compared with normal.
• Observe the minimum distances between multiple units, and distances to the rear wall and above
the assembly (min. 100 mm).
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Picture 1
This device is not suitable for using in residential areas or other constraints mentioned in 1.1.
1.3 Inspection
1.3.1 Receiving Inspection
Unpack the equipment carefully and check for any damage which may have arisen during transport.
Please contact manufacturer/supplier for technical support.
Note: If there is any apparent damage to the unit, do not attempt to operate.
1.3.2 Listing of Items
Item Quantity
Main unit 1
Power cable 1
Stirrer bar 1
User manual 1
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02User Instruction
2.1 Functions
2.1.1 Technical Parameters
Capacity 20 L
Stirring Positions 1
Speed Range 100-1500 rpm
Temperature RT-340°C
Permissible Ambient Temperature 5-40°C
Temperature Increment 1°C
Control Accuracy of Work Plate ±1(<100°C), ±1%(>100°C)
Temperature Accuracy ±0.1°C
Safety Temperature 360°C
Control Accuracy with Sensor PT1000 ±0.2°C
Permissible Relative Humidity 0.8
Heating Warning 50°C
Timing Range 1 min to 99h 59min
Motor rating Input [W] 18
Motor rating output [W] 10
Heating Output 500 W
Work Plate Size 135 mm
Stirrer Dimension 80 mm
Platform Material Stainless steel with ceramic coating
Speed Display LCD
Speed Display Resolution ±1 rpm
Temperature Display LCD
Remote Control (RS232 interface) Yes
Motor Type Brushless DC motor
Protection Class IP42
Overall Dimension 160Wx280Dx85H mm
Weight 2.8 kg
Power 550 W
Power Supply 100-120V/200-240V, 50/60Hz
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2.1.2 Control
Picture 2
Picture 3
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LCD digital
Hotplate
Timer
Magnetic
Stirrer
Items Descriptions
Function switch knob
Turning the knob, switches the parameters setting
interface, followed by Temperature setting, Speed
setting, Timer setting, switching cycle. Pressing the
knob turns the three setting options on/o.
Parameter setting knob
At the parameter setting interface, set the
parameter by turning the knob. Pressing the knob
turns on the initializer.
LCD display LCD displays the real-time working state and all
settings.
Heating knob Heat When the heating function is switched ON, the LED
Heat is lit.
Stirring knob Stir When the stirring function is switched ON, the LED
Stir is lit.
Timer knob timer When the timer function is switched ON, the LED
Timer is lit.
Power switch Switch ON or OFF.
2.1.3 Display
Picture 4
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Characters Descriptions
Temp & °C Displays temperature when the heating function is switched
ON.
Stir Displays stirring speed when the stirring function is switched
ON.
Hot Displays HOT warning if the plate temperature is above 50°C
after switching OFF the heating function.
Timer Timer parameter when the timer function is switched ON.
Probe Display when using external probe.
Remote Display when using remote control.
Rated value/Real value Display values in when heating or stirring or timer function is
switched ON.
Note: If both heating and stirring functions have been started at the same time, heat display always
has higher priority. If in this case speed is changed via the stirring knob, it displays stirring speed and
reverts to temperature after 5 seconds.
2.2 Trial Running
Make sure the required operated voltage and power supply voltage match.
Ensure the socket is properly grounded.
Plug in the power cable, ensure the power is on and begin initializing.
Add the medium into the vessel with an appropriate stirring bar.
Place vessel on the work plate.
Set the target stirring speed and begin.
Observe the stirring bar and LCD display.
Set the target temperature and start heating.
Observe the real temperature on LCD display.
Set the timer.
Timer ends, the heating function stops.
Stops stirrer function.
If these operations above are normal, the device is ready to operate. If these operations are not
normal, the device may be damaged during transportation, please contact manufacturer/supplier for
technical support.
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Warning !
Do not remove the vessel when the instrument is operating.
2.3 Function
2.3.1 Heating
The device is controlled by digital temperature control technology, which has two separate safety
circuits. The hotplate is kept at a constant temperature by a digital control circuit. The hotplate
temperature can also be controlled from a separate, adjustable safety circuit. The two temperature
sensors (PT1000) internal for temperature control are built into the hotplate. The single external
PT1000 can control the temperature of sample.
• Plug in the external PT1000.
• Set the temperature via rotating the temperature control knob slowly to the target value, press
parameter set knob and switch on the heating function.
• When the heating function is switched on, the LED “Heat” will light up and the LCD will display
the actual temperature.
• The set temperature will be displayed on the right-hand side of the LCD as well as Temp and °C
characters.
• The heating function is switched on or o by pushing heating knob.
Instrument is turned on for the setting zone temperature setting when the last shutdown temperature,
the common case, set the heating temperature display the actual temperature may have the following
dierences:
- Hotplate center and outer edge.
- The sample container and the container.
In order to ensure the accuracy of the liquid temperature inside the container, please use the PT1000
external temperature sensor.
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