LabCo SCIENTIFIC 400.100.112 Magnetic and Magnetic Hotplate Stirrer User Manual

MICRO CENTRIFUGE
USER MANUAL

INTRODUCTION

Welcome to the Magnetic and Magnetic Hotplate 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.

WARRANTY
This instrument is warranted to be free from defects in materials and workmanship under normal use and service, for a period of 12 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 claims under the warranty please contact your local supplier.

DELIVERY
This unit is supplied with one main unit, power cable, stirrer bar and user manual.

SAFETY INSTRUCTIONS

| Warning!
• Read the operating instructions carefully before use.
• Ensure that only trained staff works with the instrument.
---|---
| Risk of burn! (hotplate model)
• Caution when touching the housing parts and the hotplate they can reach temperature of 340°C.
• Pay attention to the residual heat after switching off.
| Protective ground contact!
• Make sure that socket is grounded (protective ground contact) before use.

• When working wear personal safety guards avoid the risk from:
  o Splashing and evaporation of liquids
  o Release of toxic or combustible gases

• Set up the instrument in a spacious area that’s stable, clean, non-slip, dry and fireproof surface. Do not operate the instrument in explosive atmospheres, with hazardous substances or under water.

• Gradually increase the speed but reduce the speed if:
  o Stirring bar breaks away due to high speed
  o The instrument is not running smoothly, or container moves on the base plate

• When using the hotplate model temperature must always be set to at least 50℃ lower than the fire point of the media used.

• Be aware of hazards due to:
  o Flammable materials or media with a low boiling temperature (Hotplate model)
  o Overfilling of media
  o Unsafe container

• Process pathogenic materials only in closed vessels.

• In the case of the stirrer bar is PTFE, please note:
  o Elemental fluorine, three fluoride and alkali metals will corrode the PTFE and Halogen alkanes makes it expand at room temperature
  o 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 ℃ .

• Check the instrument and accessories prior to each use. Do not use damaged components. Safe operation is only guaranteed with the accessories described in the user manual. Accessories must be securely attached to the device. Always disconnect the plug before fitting accessories.

• When using the external temperature sensor, the tip of the measuring sensor must be at least 5-10mm from vessel bottom and wall.

• The instrument can only be disconnected from the main power supply by pulling out the main or the connector 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 may only be opened by a qualified technician.

• Keep away from high magnetic field.

PROPER USE

The instrument is designed for mixing and/or heating liquids in schools, laboratories or factories.

• Observe the minimum distances between the devices and the wall and above the assembly (min. 100 mm)

This device is not suitable for using in residential areas or other constraints.

INSPECTION

Receiving Inspection
Unpack the equipment carefully and check for any damages which may have arisen during transport. Please contact manufacturer/supplier for technical support.

Note:
If there is any apparent damage to the system, please do not plug it into the power line.

CONTROL

Control elements

| ITEMS| DESCRIPTIONS
---|---|---
LCD DIGITAL MODEL| Stirring knob Stir| Set the rotary speed. The function “Stirring” is switched ON or OFF via push ON/OFF the knob.
Heating knob Heat
(Hotplate model only)| Set the rated temperature. The function “heating” is switched ON or OFF via push ON/OFF the knob.
Set the heating mode. startup and during the initialization, rotate the Heat knob, select among the mode A/B/C.
LCD| LCD displays the real working state and all settings.
LED Heat
(Hotplate model only)| When the heating function is switched ON, the LED Heat is lit.
LED Stir| When the stirring function is switched ON, the LED Stir is lit.
Power Switch| Switch ON or OFF the instrument.

Table 2

Display

TEMP AND °C
(HOTPLATE MODEL ONLY)| Display temperature when the heating function is switched ON.
STIR| Display stirring state when the stirring function is switched ON.
HOT| Display hot warning if the heating plate temperature is above 50°C after switching OFF the heating function.
PROBE| Display when using external probe.
REMOTE| Display in case of remote control.
ERR| Display in case of error happening.
RATED VALUE/REAL VALUE| Display value in case of heating or stirring function switching ON.
A| rapid heating mode, under which the heating speed is the fastest but there may be some overshoot
B| standard heating mode, under which the heating speed is faster and the overshoot is smaller
C| steady heating mode, under which the heating speed is slower, but the overshoot is small or no overshoot

Table 3

Note:
If both heating and stirring functions have been started at the same time, heating function always has higher
priority. If in this case speed is changed via the stirring knob, it displays stirring speed and reverses to
temperature in the duration of 5 seconds.
Heating mode Setting method: startup and during the initialization, rotate the Heat knob, select among the mode A/B/C. The mode will be automatically locked after 3 seconds. If you need to adjust again, please repeat the same setting operation after restarting the machine.

TRIAL RUN

• Make sure the required operating voltage and power supply voltage match.
• Ensure the socket is properly grounded.
• Plug in the power cable and ensure the power is on and begin initialising.
• 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 (digital model).
• Set the target temperature and start heating.
• Observe the real temperature on LCD display (digital model).
• Stop the heating and stirring functions.
• 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 supplier for technical support.

Warning!
Do not transfer the vessel when the instrument is powered on.

FUNCTION: HEATING (HOTPLATE MODEL ONLY)

The device is controlled by digital temperature control technology, which has two separate safe circuits. The hotplate is kept at a constant temperature by a digital control circuit. The hotplate temperature can also be monitored from a separate, adjustable safe circuit. The two temperature sensors (PT1000) internal for temperature control are built into the hotplate. The single external PT1000 can monitor the temperature of sample.

• Plug in the external PT1000.
• Set the temperature via rotating the temperature control knob slowly to the target value.
• When the heating function is switched on, the LED “Heat” will light up and the LCD will display the real temperature.
• The rated 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.

The instrument is turned on for the zone temperature setting when the last shutdown temperature. The common case is its set the heating temperature display and the actual temperature may have the following differences:

• Hotplate centre and outer edge.
• The sample container and the container.

In order to ensure the accuracy of the temperature inside the container, please use the external temperature sensor PT1000.
Working with external temperature sensor (hotplate model only)

The external temperature sensor PT1000 is the manufacture’s standard accessory. If the sensor is plugged in, “Probe” will be shown on the digital display to indicate the sensor is operating. The setting value of external temperature sensors and actual temperature are displayed. Safe circuit controls hotplate temperature.
Comparing with the temperature control of the hotplate, the external temperature sensor can control the medium’s temperature more precisely.

Residual heat warning ‘HOT’ (hotplate model only)
In order to prevent the risk of burns from a hotplate, digital hotplate has a residual heat warning function. When the heating function is switched off and the heating plate temperature is still above 50°C, “Hot” will flash to warn that there is a hazard of burns from the hotplate. When the hotplate temperature drops to below 50°C, the unit will automatically switch off. If users want to turn off the LCD immediately, just pull out the plug directly. When the plug is pulled out, the residual heat warning function will not work.

STIRRING

The function “stirring” 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 of function heating and stirring are switched on and those above operations are done, the LCD will shift to the speed value and come back to the temperature value in about 5 seconds.

FAULTS

• Instruments can’t be power ON
  o Check whether the power line is unplugged.
  o Check whether the fuse is broken or loose.

• Fault in power on self-test
  o Switch OFF the unit, then switch ON and reset the instruments to factory default setting.

• Stir speed cannot reach set point
  o Excessive medium viscosity may cause abnormal speed reduction of the motor.

• Unit cannot be powered off when switched off
  o 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 supplier.

MAINTENANCE AND CLEANING

• Proper maintenance can keep instruments working properly and lengthen its lifetime.
• Do not spray cleanser into the instrument when cleaning.
• Unplug the power line when cleaning.
• Only use recommended cleansers:

Before using other method for cleaning or decontamination, the user must ascertain with the manufacturer/supplier that this method will not harm the instrument. Wear proper protective equipment during cleaning of the instrument.

Note:

• Electronic device cannot clean with cleanser.
• If you require maintenance service, must be cleaned the instrument in advance to avoid pollution of hazardous substances, and to send back into original packing.
• If the instrument will not use for a long time, please switch off and place in a dry, clean, room temperature and stable location.

ASSOCIATED 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

Changes or modifications not approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at your expense.

SPECIFICATIONS

*CONTROL ACCURACY OF HEATING TEMP WITH TEMP SENSOR [ ℃ ]*| ±0.2
RESIDUAL HEAT WARNING| 50℃
DIMENSIONS (MM)| 280×160×85
WEIGHT [KG]| 2.8
PERMITTED AMBIENT TEMPERATURE [°C]| 5-40
PERMITTED RELATIVE HUMIDITY| 80%
PROTECTION CLASS ACC. TO DIN 60529**| IP42

• Hotplate only

ORDERING INFORMATION

Printed technical specificartions are subject to change without notification
Labco® is a registered trademork.
See the full product range online.
1800 052 226
soles@lobcoscientific.com.au
labcoscientific.com.au
PO Box 5816, Brendale, QLD 4500
ABN 57 622 896 593
Version 1.1

References

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