The Daily Maintenance of Magnetic Stirrer
Magnetic stirrer is an instrument works under the principle of
mixing the material. Suitable for the viscosity is not very large solid-liquid
mixture or liquid in the physical magnetic. In the daily usage if the magnetic stirrer broken, we need to
calmly deal with, do not be anxious. Some treatment and methods can be used to
determine the cause of the failure, so the daily use of magnetic stirrer in the
process must also pay attention to do maintenance of magnetic stirrer, extend
the equipment Of life as much as possible.
First, the routine maintenance
1.
First static then dynamic: determine the electrical equipment
buttons, transformers, thermal relays and the fuse is good or bad, to determine
the fault position when the device is not powered. Power test, listen to the sound,
test parameters, determine the fault, then maintenance. If the motor phase is
missing, if the measured three-phase voltage value can not be identified, it
should listen to the sound, individually measured each relative to the voltage,
to determine which phase defects.
2.
First the general then special: due to assembly quality or
other equipment failure caused by failure, generally account for about 50% of
common faults. Electrical equipment, special failures are mostly soft faults,
rely on experience and instrumentation to measure and repair.
3.
First cleaning then repairing: for the heavy pollution of electrical
equipment, clean its buttons, wiring points, contact points, check the external
control keys are malfunctioning. Many failures are caused by dirt and
conductive dust.
4.
First Machine then electrical: only in the determination of
mechanical parts without failure, and then electrical inspection. Check the
circuit failure, you should use the detection equipment to find the fault
location, to confirm no contact failure, and then targeted to see the
relationship between the operation of the line and machinery to avoid
misjudgment.
5.
Thinking first before moving hands: for electric stirrer
failure, should not rush to the first hands-on, ask the reason of fault. For
unfamiliar equipment, should also be familiar with the circuit principle and
structural characteristics, to comply with the corresponding rules, before you
disassemble. Familiarize yourself with the function, location, connection, and
relationship with other devices in each electrical component. In the absence of
an assembly diagram, you should dismantle and sketch the mark.
6.
First debugging then fault: debugging and fault coexistence
of electrical equipment, should first remove the fault, and then debugging,
commissioning must be carried out under the premise of the electrical line
speed.
7.
First external then internal: should first check whether the
equipment obvious cracks, defects, to understand its maintenance history, life,
etc., and then check the machine internal. Before the demolition should be
excluded from the surrounding fault factors, identified as the machine after
the failure to disassemble, otherwise, blind disassembly, the equipment may
repair the worse.
8.
First power then equipment: the power part of the failure
rate in the entire fault equipment accounted for a high proportion, so the
first maintenance power can often be more with less.
Second, the maintenance when working
1. It is best not to let the instrument works in the absence of
heating liquid.
2. The machine should be checked before the operation of the
ground, to ensure that after the completion of work.
3. In order to ensure no damage to the instrument, usually the
instrument will be placed inside the insulation material, so the first time we
use the magnetic stirrer will find a little smoke or pungent taste, it is normal.
Not the Product quality problems, but Keep it ventilated.
4. The magnetic stirrer inside the device heating the upper
limit, so in the heating time must be taken into account, the best way is to
ensure that the machine is not only heating, and remember the state of the
motor into a rotating state, so that The greatest degree of protection of
magnetic stirrer.
5. After the completion of heating, turn off the heat first, and
after the temperature has been dispersed and then close the mixing.
6. To ensure that the environment of the dry. Because in a humid
environment, the instrument easily leads to leakage and other phenomena, which
is why we must ensure that the instrument grounded, if the instrument is very
wet when you must use hot air dry.
7. The operation must be careful, do not be burned, because the
general temperature is relatively high.
8. For the sake of
safety equipment on the back of a fuse, the device is still working after the
power can check whether the need to replace.
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Coyp right by @Hangzhou Zhongwang Technology CO.,LTD
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