Four E's Scientific MI0102008 User manual

Operating Instructions
5 Inch LED Digital
Magnetic Stirrer with Timer
MI0102008

Contents
Safety Instructions
Inspection
Control
Trial run
Timing
Stirring
Faults
Error codes
Maintenance
Standards and regulations
Specifications
Warranty
2
3
4
6
6
7
7
7
7
8
9
10
1

Safety Instructions
For your protection
• Read the operating instructions in full before starting up
and follow the safety instructions when in use.
• Ensure that only trained staff work with the device.
• Socket must be earthed (protective ground contact)
• Caution-Magnetism! Effects of the magnetic field have to be
taken in to account (e.g. data storage media, cardiac
pacemakers…).
• Wear your personal protective equipment in accordance with
the hazard category of the media to be processed. Otherwise
there is a risk from:
- Splashing and evaporation of liquids
- Ejection of parts
- Release of toxic or combustible gases
• Set up the device in a spacious area on an even, stable, clean,
nonslip, dry and fireproof surface.
• Don’t use damaged components.
• Gradually increase the speed and reduce the speed if
- the medium splashes out of the container because the
speed is too high
- the machine is not running smoothly
- the container moves on the heating plate
• Beware of hazards due to:
- glass breakage
- incorrect container use
- overfilling of media
- unsafe condition of container
• Don’t use the machine in explosive atmospheres with
hazardous substances.
• Process pathogenic materials only in closed containers under
a suitable extractor hood.
2

• Only process media that will not react dangerously to the extra
energy produced in other ways, e.g. through light irradiation.
• Accessories must be securely attached to the machine and
can’t come off by themselves.
• Always disconnect the plug before fitting accessories.
• The machine can only be disconnected from the mains supply
by pulling out the mains plug or the connector plug.
• When using PTFE-coated magnetic bars, the following has to
be noted:
Chemical reactions of PTFE occur in contact with molten or
solute alkali metals and alkaline earth metals, as well as with
fine powders of metals in groups 2 and 3 of the periodic
system at temperatures above 300°C-400°C.
Only elementary fluorine, chlorotrifluoride and alkali metals
attack it; halogenated hydrocarbons have a reversible
swelling effect.
• The voltage stated on the type plate must correspond to the
mains voltage.
• Don’t cover the machine, even partially e.g. with metallic plates
or film, which will result in overheating.
• Ensure the working plate is kept clean.
• Protect the machine and accessories from bumps and impacts.
• The minimum distance between the machines; the
minimum distance between the machine and the wall is
mini. 100mm.
Inspection
• Unpack the device carefully and check for any damages
which may have arisen during transit. Please contact
the manufacturer/supplier for technical support.
Note:
If there is any apparent damage to the device,
please do not connect the power line.
3

Contents of package
4
Qty
1
1
1
1
1
Items
Main unit
Power cable
Screwdriver
Magnetic stirring bar
User Manual
Control

5
Knob for time
setting
Knob for speed
setting
Timer display
Speed display
Setting indicator
Power switch
Set the time by rotating the knob
Start/stop timing by pressing the
knob
Set the speed by rotating the knob
Start/stop stirring by pressing the
knob
When timer function starts, it
displays the remaining stirring
time. It displays “OFF” when time
is off.
When stirring, it displays the
target speed and the actual speed
simultaneously. It displays “OFF”
when the stirring stops.
The light will flash when setting
the timer or speed.
Switch on/off
Item Description
1
2
3
4
5
6

6
Trial run
• Make sure the required voltage corresponds to the mains voltage.
• Ensure the socket must be properly grounded.
• Switch on and start initializing.
• Add sample into the container with an appropriate stirring bar.
• Place the container on the working plate.
• Set the target speed and start stirring.
• Observe the stirring bar and the LED display.
• Set the time and start timing.
• Observe the actual speed and timing on the LED display.
• When timer function starts, the LED will display the
remaining stirring time.
• Timer function is switched on/off by pressing the timer setting.
If the above operations are normal, the device is good to run. If
these operations are abnormal, the device may probably be
damaged during transit, please contact manufacturer/supplier
for technical support.
Warning!
DO NOT move the container when the device is
working.
Timing
Timing function is activated for stirring period timing ONLY when
Stirring function is ON. LED displays the remaining stirring time
limits. The stirring function will be automatically shut down when
the timer display comes to zero. If timing function is off, or shut
down in the halfway, the device will keep stirring.

Stirring
Stirring is switched on / off by pressing the speed setting knob.
The speed is set by rotating the knob in the range of 50-1500rpm.
When powered on, it displays the set speed of last operation.
Faults
• The device can’t work when powered on
- Check if the power line is connected properly
- Check if the fuse is broken or loose
• Fault in power on self test
- Power off the device and then restart
• Actual speed can’t reach the set value
- Media in high viscosity may probably cause abnormal speed
reduction of the motor
Error codes
7
If the instrument still can’t work properly, please contact
manufacturer / supplier for technical support.
Maintenance
Proper maintenance can make the device work well and extend
its life.
• Do not allow moisture to get into the device when cleaning.
• Disconnect the main plug when cleaning.
• Wear protective gloves when cleaning.
• Only use the recommended cleansing agents.
Error code Error description Solutions
Er5 Motor failure Reduce the sample

8
Dyes
Constructions materials
Cosmetics
Foodstuffs
Fuels
isopropyl alcohol
water containing tenside /
isopropyl alcohol
water containing tenside /
isopropyl alcohol
water containing tenside
water containing tenside
Standards and regulations
Construction in accordance with the following safety standards:
EN 61010-1
UL 3101-1
CAN/CSA C22.2(1010-1)
EN 61010-2-10
Construction in accordance with the following EMC standards:
EN 61326-1
Associated EU guidelines:
EMC-guidelines: 89/336/EWG
Instrument guidelines: 73/023/EWG

9
Specifications
Items
Voltage [VAC]
Frequency [Hz]
Power [W]
Stirring point position quantity
Max. stirring quantity (H2O) [L]
Max. magnetic bar [L x Φ, mm ]
Motor Type
Max. power input of motor [W]
Max. power output of motor [W]
Speed range [rpm]
Speed display
Working plate material
Dimension of working plate (mm)
Time setting range
Timing display
Dimensions [W x D x H, mm]
Weight[kg]
Permissible ambient temperature[°C]
Permissible relative humidity
Protection class acc. to DIN EN60529
MI0102008
200-240/100-120
50/60
40
1
5
55 x 10
Brushless DC motor
30
20
50-1500
LED
Aluminum alloy with
ceramic coated
Φ135
0-99h59min
LED
250x148x85
1.7
5-40
80%
IP42

10
Warranty
The 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 doesn’t cover any worn out parts,
nor apply to any damage by improper use, insufficient care or
maintenance not carried out in accordance with the instructions
in this operating manual.
For claims under the warranty please contact your local supplier.
You may also send the instrument directly to manufacturer,
enclosing the invoice copy and giving reasons for the claim.