Upon receiving the VWR Hotplate/Stirrer/Hotplate-Stirrer, check to ensure that no
damage has occurred in shipment. It is important that any damage that occurred in
transport is detected at the time of unpacking. If you do find such damage the carrier
must be notified immediately.
After unpacking, place the Hotplate/Stirrer/Hotplate-Stirrer on a level bench or table,
away from explosive vapors. Ensure that the surface on which the unit is placed will
withstand typical heat produced by the unit and place the unit a minimum of six (6)
inches (15.2cm) from vertical surfaces. Always place the unit on a sturdy work surface.
The Hotplate/Stirrer/Hotplate-Stirrer is supplied with a power cord that is inserted into
the IEC connector on the back of the unit first, then it can be plugged into a properly
grounded outlet. The 120V unit plugs into a 120 volt, 50/60 Hz source. The 230V unit
plugs into a 230 volt, 50/60 Hz source. Be sure the power cord is fully and correctly
installed into the IEC connector before powering the unit.
Note: 10 x 10, 120V heating models have a fixed power cord terminated with a NEMA
5-15P appliance connector.
MaintenanCe & serviCing
The Hotplate/Stirrer/Hotplate-Stirrer is built for long, trouble-free, dependable service.
It needs no user maintenance beyond keeping the surfaces clean. The unit should
be given the care normally required for any electrical appliance. Avoid wetting or
unnecessary exposure to fumes. Spills should be removed promptly after the unit has
cooled down. Do not use a cleaning agent or solvent on the front panel or top plate
which is abrasive or harmful to plastics, nor one which is flammable. Always ensure
the power is disconnected from the unit prior to any cleaning. If the unit ever requires
service, contact your VWR representative.
CLEANING CERAMIC TOPS:
First remove any burnt-on deposits or spills from the top plate with a scraper (similar
to scraping paint off of windowpanes in your home). For your safety, please wear an
insulated mitt when using a metal scraper. When the top plate has cooled, apply a few
dabs of a non-abrasive cleaner over the surface with a damp paper towel. As a final
step, clean with water and wipe surface with a clean, dry paper towel.
CLEANING ALUMINUM TOPS:
For simple dust and dirt, clean the aluminum top by using a damp cloth with soap and
water. For more stubborn deposits, try using a flat edge wooden spatula to scrape off
as much as possible. For more stubborn stains, try using a couple of tablespoons of
white vinegar to two pints of water and mix well. Dip a clean cloth into the mixture and
gently rub the exterior of the aluminum surface. Generally, it is not a good idea to use
abrasive pads or cleaners on aluminum, as the metal will scratch easily. If you must
use some type of abrasive, try applying baking soda to the surface and then rubbing
with a moist cloth. This will work as well as most scouring pads and is less likely to
create deep scratches in the surface. Be careful not to use steel wool or scouring
pads as they can leave the aluminum riddled with little scratches that make it harder
to clean in the future. If you feel you must use steel wool, use the finest grade you
can find and use as sparingly as possible with as little pressure as possible. Go with
the grain rather than using circular motions.
intended Use
These Hotplates/Stirrers/Hotplate-Stirrers are intended for general laboratory use.
environMental Conditions
Operating Conditions: Indoor use only.
Temperature: 5 to 40°C (41 to 104°F)
Humidity: 20% to 80% relative humidity, non-condensing
Altitude: 0 to 6,562 ft (2000 M) above sea level
Non-Operating Storage:
Temperature: -20 to 65°C (-4 to 149°F)
Humidity: 20% to 80% relative humidity, non-condensing
Installation Category II and Pollution Degree 2 in accordance with IEC 664.
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installation MaintenanCe & serviCing Cont’d
