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Magnetic Hotplate-Stirrer with Timer
User Manual
OptiMag-ST Magnetic H otplate-Stirrer with Timer
Please read the User Manual carefully before use, and follow all operating and
safety instructions!
Technical specifications and outline are subject to change without prior
notice.
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Contents
Service ............................................................................ 1
Warranty ......................................................................... 1
1 Safety Instructions .................................................. 2
2 Proper Use .............................................................. 3
3 Inspection ................................................................ 4
3.1 Receiving Inspection ............................................ 4
3.2 Listing of Items ..................................................... 4
4. Control .................................................................... 4
4.1 Control elements ................................................... 4
4.2 Display .................................................................. 2
5 Trial Run ................................................................. 2
6 Function: Heating ................................................... 3
6.1 Working with external temperature sensor ........... 4
6.2 Residual heat warning（HOT） .......................... 4
7 Stirring .................................................................... 5
8 Timer ...................................................................... 5
9 Remote Control ....................................................... 5
10 Faults ...................................................................... 6
11 Maintenance and Cleaning ..................................... 6
12 Associated Standards and Regulations ................... 7
13 Specifications .......................................................... 8
14 Ordering information ............ Error! Bookmark not
defined.
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Preface
Welcome to the “(Hotplate) Timer Magnetic Stirrer User
Manual”. Users should read this Manual carefully, follow
the instructions and procedures, and be aware of all the
cautions when using this instrument.
Service
When service is required, please contact our Service
Department or local distributor for technical support:
Chemglass Life Sciences
3800 N Mill Road
Vineland, NJ 08360 USA
1-800-843-1794
www.chemglass.com
Please provide the customer care representative with the
following information：
•
Certification
• Description of problem (i.e., hardware or software)
• Methods and procedures adopted to resolve the problems
• Your contact information
Warranty
This instrument is warranted to be free from defects in
materials and workmanship under normal use and service,
for a period of 24 months from the date of invoice. The
warranty is extended only to the original purchaser. It shall
not apply to any product or parts which have been damaged
on account of improper installation, improper connections,
misuse, accident or abnormal conditions of operation.
For warranty claims please contact your local supplier. You
may also send the instrument directly to manufacturer,
enclosing the invoice copy and by giving reasons for the
claim.
• Serial number（on the rear panel）
1
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1 Safety Instructions
Warning!
ng instructions carefully
instrument.
Caution when touch the housing parts and
the residual heat after
Make sure that the electrical socket is
use.
• Read the operati
before use.
• Ensure that only trained staff work with the
• When operating wear personal safety protection to avoid
the risk from:
• Use the instrument in a spacious area on a stable, clean,
non-slip, dry and fireproof surface. Do not operate the
instrument in explosive atmospheres, with hazardous
Risk of burn!
•
the hotplate which can reach temperature of
340°C.
• Pay attention to
switching off.
Protective ground contact！
•
- Splashing and evaporation of liquids
- Release of toxic or combustible gases
grounded (protective ground contact) before
substances or around water.
• 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
• Temperature must always be set to at least 50
the flash point of the media used.
• Be aware of hazards due to:
- Flammable materials or media with a low boiling
temperature
- Overfilling of media
- Unsafe container
• Process pathogenic materials only in closed vessels.
• If the case of the stirrer bar is PTFE, please note：
- Elemental fluorine, three fluoride and alkali metals will
corrode the PTFE and Halogen alkanes 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 ~ 400C .
• Check the instrument and accessories prior to each use.
2
C lower than
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Do not use damaged components. Safe operation is only
>100mm
>100mm
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 fitting accessories.
• When using the external temperature sensor, the tip of the
measuring sensor must be at least 5-10mm from vessel’s
bottom and wall.
• The instrument can only be fully disconnected from the
main power supply by turning off the main or disconnecting
the plug.
• The voltage stated on the label must correspond to the
main power supply.
• Ensure that the main power supply cable does not touch
the hotplate. Do not cover the device.
• The instrument must only be operated by adults.
• Keep away from high magnetic fields.
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℃and 40℃
• Installation Type: Product is designed to connect the
indoor outlet, where voltage fluctuation 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).
Figure 1
This device is not suitable for using in residential areas or
other constraints mentioned in Chapter 1.
3
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3 Inspection
4. Control
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.
3.2 Listing of Items
The package includes the following items:
Items
Main unit 1
Power cable 1
Stirrer bar 1
User Manual 1
Table 1
Qty
4.1 Control elements
Figure 2 LCD Digital Hotplate Timer Magnetic Stirrer
4
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Figure 3
5
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Items Descriptions
followed by Temperature
the parameter setting
When the heating function is
function is
function is
switch
Turning the knob, switches the
parameters setting interface,
Function
switch
knob
LCD
setting, Speed setting, Timer
setting, switching cycle.
Pressing the knob turns the
three setting options on/off.
Timer
knob timer
Power
When the timer
switched ON, the LED Timer is
lit.
Switch ON or OFF.
Table 2
Digital
Hotplate
Parameter
setting
knob
Timer
Magnetic
LCD
display
Stirrer
Heating
knob Heat
Stirring
knob Stir
At
interface, set the parameter by
turning the knob. Pressing the
knob turns on the initializer.
LCD displays the real-time
working state and all settings.
switched ON, the LED Heat is
lit.
When the stirring
switched ON, the LED Stir is
lit.
6
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4.2 Display
Characters
Descriptions
Displays HOT warning if the plate
temperature is above 50°C after
Timer parameter when the timer
function is switched
Note：
the stirring knob, it displays stirring speed and
Rated value/Real
Probe
Remote
value
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
Display when using external probe.
Display when using remote control.
Display values in when heating or
stirring or timer
ON.
Table 3
Figure 5
Temp & °C
Stir
Hot
Timer
Displays temperature when the heating
function is switched ON.
Displays stirring speed when the stirring
function is switched ON.
switching OFF the heating function.
function is switched ON.
reverts to temperature after 5 seconds.
5 Trial Run
• 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.
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• 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.
Warning !
Do not remove the vessel when the instrument is
operating.。
6 Function: 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 off 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 differences:
- 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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6.1 Working with the PT1000 external
temperature sensor
following at this time:
• Turn off the power
• Ensure the external temperature sensor is positioned
sample container correctly
• Turn on the power, set the target temperature and
switch on the heating function
• If the unit is still not functioning correctly, please
contact manufacturer/supplier
Figure 6
The PT1000 external temperature sensor is the
manufacturer’s optional accessory. If the sensor is plugged
in, “Probe” will be sho wn on the digital d isplay to indica te
the sensor is operating. The setting value of external
temperature sensors and actual temperature are displayed.
The safety circuit controls hotplate temperature.
Comparing with the temperature control of the hotplate, the
external temperature sensor can control the medium’s
temperature more precisely. The external temperature
sensor must be put in sample container, if detect anomalies,
heating will automatically shut down. Please do the
6.2 Residual heat warning（HOT）
In order to help prevent the risk of burns from the hotplate,
this instrument has a residual heat warning function. When
the heating function is switched off (and the power cord is
still plugged in) and the heating plate temperature is still
above 50°C, “Hot” will flash to warn that it is unsafe to
touch.. When the hotplate temperature drops to below 50°C,
the display will automatically switch off. To completely
turn off the unit, pull out the plug. When the plug is pulled
out, the residual heat warning function will not function.
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7 Stirring
The “stirring” function is switched on or off via rotating
stirring knob. The speed is set on the knob (100 to 1500
rpm in steps of 10 rpm). When both the heating function
and stirring are switched on and the above operations are
completed, the LCD will shift to the speed value and revert
back to the temperature value in about 5 seconds.
The last speed value set is displayed.
8 Timer
Turn the Function switch knob to time set interface, turn the
parameter set knob to target time, press parameter set knob,
to switch on timer function.
Attention: The heating and stirring function can be
switched on at the same time only when setting the timer
function. Otherwise, only the stirring function can be
switched on.
9 Remote Control
Figure 7
The unit can be controlled from an external PC (using the
third-party software) v ia the RS232C serial interface fitted
to the unit. Data communication from laboratory instrument
to computer is only possible on demand of the computer.
• The functions of the interface lines between laboratory
instrument and automation system are selected from
the specified signals of the EIA-standard RS232C,
corresponding with DIN66020 Part 1. The allotment of
the bushing can be taken from Figure 7.
• Transmission method: Asynchronous signal
transmission in start-stop-operation.
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• Mode of transmission: Fully Duplex. 1 start bit; 7
materials
Water containing surfactant /
Isopropyl alcohol
Cosmetics
Water containing surfactant /
Fuels
Water containing surfactant
character bits; 1 parity bit [straight (even)); 1 stop bit
• Transmission speed: 9600 bit/s
Note:
Forbid to insert or remove the RS232C
communication line when switch on!
10 Faults
• Instruments can’t be powered ON
- Check whether the power line is unplugged
- Check whether the fuse is broken or loose
• Fault in power during self-test
- Switch OFF the unit, then switch ON and reset
the instruments to factory default setting.
• Stir speed cannot reach set point
- Excessive medium viscosity may cause abnormal
speed reduction of the motor
• Unit cannot be powered off when switched off.
- Check if the residual heat warning function is still
ON and hotplate temperature is above 50℃ (the
LCD still work and “Hot” flash).
If these faults are not resolved, please contact
manufacturer/supplier.
11 Maintenance and Cleaning
Correct usage and maintenance of the equipment can
extend the service life of equipment. Please keep the
instrument dry and clean, quickly remove and overflowing
liquid, use non-abrasive cleaner to clean up the outer
surface, please do not connect with the power supply if wet.
If wet solids or liquid enter into the instrument, please
disconnect the power supply and do not use, contact the
manufacturer/supplier for more advice.
• Do not use a spray cleanser on the instrument when
cleaning.
• Unplug the power cord when cleaning.
• Only use recommended cleansers:
Dyes Isopropyl alcohol
Construction
Isopropyl alcohol
Foodstuffs Water containing surfactant
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Construction in accordance with the following safety
standards:
Construction in accordance with the following EMC
EN 61326-1
Associated EU guidelines:
EMC-guidelines: 89/336/EWG
Repairing equipment must be cleaned and
contamination of dangerous
condition at dry, clean,room temperature,
• Before using other method for cleaning or
decontamination, the user must ascertain with the
manufacturer that this method will not harm the
instrument. Wear the proper protective gloves during
cleaning of the instrument.
12 Associated Standards and Regulations
Note:
• Electronic equipment cannot cleaned with a
detergent cleaner.
•
avoid the
substances, put the equipment into original
package box and returned.
• When the equipment hasn’t been used for
long time, please leave it in power-off
EN 61010-1
UL 3101-1
CAN/CSA C22.2(1010-1)
EN 61010-2-10
standards:
Instrument guidelines: 73/023/EWG
stable environment.
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13 Specifications
Stirring point position quantity
1
Max. stirring quantity (H2O) [L]
20
[W]
Heating power [W]
500
[°C]
Residual heat warning
50℃
Set time limits
1min-99h 59min
Temperature display accuracy
±0.1
Items
Voltage [VAC] 200-240 / 100-120
Frequency [Hz] 50 / 60
Power [W] 550
Max. magnetic bar [L×Ø, mm]
Motor type Brushless motor
Max. power input of motor [W] 18
Max. power output of motor
Speed range [rpm]
Rotary speed display LCD
Plate material Stainless steel
Dimensions of workplate (mm)
Temperature range [°C]
Temperature display [°C] LCD
Digital model
80×10
10
100-1500，
Ø 135
Room temperature -
340,
Step:1
The safety temperature of the
hotplate [℃]
Temperature sensor in medium PT1000
Control accuracy of heating
temperature with temperature
sensor [℃]
Dimensions [WxDxH ,mm] 280x160x85
Weight [kg] 2.8
Permitted ambient temperature
[°C]
Permitted relative humidity 80%
Protection class acc. to DIN
60529
RS232 interface Yes
Table 4
360
±0.2
5 – 40
IP42
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