
Instruction Manual | 7
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. The equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the user manual, may cause harmful interference to radio communications. Operation of equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct the interference.
CAUTION: This equipment is not intended for use in residential environments and may not provide adequate protection to radio
reception in such environments.
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à la norme NMB-001 du Canada.
12.0 Frequently Asked Questions
I have a beaker of water on my hot plate and the temperature is set for 550°C. Why does the display setting blink and not remain
constant?
The display will blink at any time when the temperature sensor is not within range of the set temperature value. The temperature
measured by the sensor is a composite of the temperature of the heating element located beneath the sensor, the ceramic top
above the sensor, and the very small air space around the sensor. Water requires a substantial amount of heat in order to boil yet
remains at a constant temperature of 100°C for the duration of the boiling process. Although the heating element is producing
maximum heat at the 550°C setting, the water consumes this heat so quickly during the boiling process that the heat is unable to
raise the temperature measured by the sensor to within the range of the 550°C set value.
How long does it take to bring a beaker of water to a boil?
Using a 600 mL beaker with 400 mL of water at 25°C, it takes approximately 15 minutes to bring the water to a full, rolling boil.
Can I use a metal tray on top of my Labnet hot plate?
No. The metal will act as a heat sink, and have a high probability of creating an abnormal heating condition. If an abnormal
condition is detected, the product will shut down. A metal vessel will also scratch the ceramic top plate.
The stir bar keeps decoupling. Why and what can I do to stop this?
These units are programmed to minimize decoupling. However, liquid viscosity, stir bar magnetic strength, vessel used, and speed
changes can cause decoupling. High viscosity liquids must be stirred at slower speed settings. The magnetic strength of stir bars can
weaken over time and may need to be replaced. The vessels used need to have thin, flat bottoms to insure optimal performance.
Rapid decreases in stir speed can cause decoupling as the magnet slows down quicker than the stir bar and the liquid.
What size vessel should I use?
The vessels used on the top of a hot plate must not be larger than the top plate.
13.0 Limited Warranty
Corning Incorporated (Corning) warrants that this product will be free from defects in material and workmanship for a period of
two (2) years from date of purchase. CORNING DISCLAIMS ALL OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED, INCLUDING
ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE. Corning’s sole obligation shall be to
repair or replace, at its option, any product or part thereof that proves defective in material or workmanship within the warranty
period, provided the purchaser notifies Corning of any such defect. Corning is not liable for any incidental or consequential damages,
commercial loss or any other damages from the use of this product.
This warranty is valid only if the product is used for its intended purpose and within the guidelines specified in the supplied instruction
manual. This warranty does not cover damage caused by accident, neglect, misuse, improper service, natural forces or other causes not
arising from defects in original material or workmanship. This warranty does not cover motor brushes, fuses, light bulbs, batteries or
damage to paint or finish. Claims for transit damage should be filed with the transportation carrier.
In the event this product fails within the specified period of time because of a defect in material or workmanship, contact Corning
Customer Service at: USA/Canada 1.800.492.1110, outside the U.S. +1.978.442.2200, visit www.corning.com/lifesciences, or contact
your local support office.
Corning’s Customer Service team will help arrange local service where available or coordinate a return authorization number and
shipping instructions. Products received without proper authorization will be returned. All items returned for service should be sent
postage prepaid in the original packaging or other suitable carton, padded to avoid damage. Corning will not be responsible for
damage incurred by improper packaging. Corning may elect for onsite service for larger equipment.
Some states do not allow limitation on the length of implied warranties or the exclusion or limitation of incidental or consequential
damages. This warranty gives you specific legal rights. You may have other rights which vary from state to state.
No individual may accept for, or on behalf of Corning, any other obligation of liability, or extend the period of this warranty.