CORNING PC-170 - User Manual

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Summary

International Symbols

Hot Surface Indicator

Symbol indicating surfaces may be hot to the touch.

Toxic Gas Emission Warning

Symbol indicating potential emission of toxic gases when heating materials.

Protective Earth Ground

Symbol for protective earth connection and grounding.

Warnings

Safety Precautions

Lists critical safety warnings including immersion, plug modification, insulating materials, volatile chemicals, explosion risk, and unit modification.

Heating Operation and Controls

Stirring Operation and Controls

Summary

International Symbols

Hot Surface Indicator

Symbol indicating surfaces may be hot to the touch.

Toxic Gas Emission Warning

Symbol indicating potential emission of toxic gases when heating materials.

Protective Earth Ground

Symbol for protective earth connection and grounding.

Warnings

Safety Precautions

Lists critical safety warnings including immersion, plug modification, insulating materials, volatile chemicals, explosion risk, and unit modification.

Heating Operation and Controls

Stirring Operation and Controls

The Corning® Scholar PC-170 Hot Plate and PC-171 Stirrer are laboratory devices designed for heating and stirring applications. This instruction manual provides comprehensive details on their operation, maintenance, and technical specifications.

Function Description:

The PC-170 Hot Plate is designed for heating various materials, while the PC-171 Stirrer is used for stirring liquids. Both units are intended for indoor use in laboratory settings. The hot plate features an enameled top style, and the stirrer has a plastic top style.

Important Technical Specifications:

Models:
- Corning® Scholar PC-170 Hot Plate (Catalog Numbers: 6795-170, 120V; 6797-170, 100V)
- Corning Scholar PC-171 Stirrer (Catalog Number: 6795-171, 120V)
Top Size (H x W x D): Both models have a 5 x 5 inch (12.7 x 12.7 cm) top size.
Dimensions (H x W x D):
- PC-170 Hot Plate: 4 x 5 x 5 inches (10.2 x 12.7 x 12.7 cm)
- PC-171 Stirrer: 3.2 x 5 x 5 inches (8.1 x 12.7 x 12.7 cm)
Power:
- PC-170 Hot Plate (6795-170): 120V, 50-60Hz, 250W, 2.1A
- PC-170 Hot Plate (6797-170): 100V, 50-60Hz, 250W, 2.5A
- PC-171 Stirrer (6795-171): 120V, 50-60Hz, 30W, 0.25A
Temperature Range (PC-170 Hot Plate): 60°C to 360°C. Approximate temperatures for dial settings are: Low (60°C), 2 (100°C), 3 (140°C), 4 (160°C), 5 (200°C), 6 (230°C), High (360°C). These are "no load" values and actual temperatures may vary.
Stir Range (PC-171 Stirrer): 100 to 1,600 rpm.
Operating Conditions:
- Indoor use
- Altitude up to 2,000 meters
- Temperature of 0°C to 40°C
- Maximum relative humidity of 80% for temperatures up to 31°C, decreasing linearly to 50% relative humidity at 40°C.
- Position at least 12” from walls, 48” from ceiling, and 12” between hot plates if using multiple units.
- Main supply voltage fluctuations not to exceed ±10% of the nominal voltage.
- Installation Category II
- Pollution Degree 2

Usage Features:

Heating Operation (PC-170 Hot Plate): The unit is operated by turning a dial to align with the desired setting. The hot plate will not heat when the dial is in the "OFF" position. The manual provides a table of approximate temperatures corresponding to different dial settings.
Stirring Operation (PC-171 Stirrer): Similar to the hot plate, the stirrer is operated by turning a dial to the desired setting. The stir range is from 100 to 1,600 rpm. The stirrer will not operate when the dial is in the "OFF" position.
International Symbols: The manual includes international symbols for hot surface indication, emission of toxic gases, protective earth, and disposal instructions.
Warnings: Users are cautioned against immersing the unit for cleaning, removing or modifying the ground power plug, using insulating materials like sand baths on the heating surface, heating volatile materials without caution, and modifying the unit electrically or mechanically without Corning's approval. Appropriate hand and eye protection should be used when handling hazardous chemicals. The units are not explosion-proof or spark-proof.

Maintenance Features:

Inspection Procedure:
- Regularly check the top plate for etching or chipping. Discontinue use and contact Corning if these conditions are present.
- Inspect the power cord for damage. Do not modify damaged cords or grounded power plugs. Service should be performed by qualified technicians following Corning instructions.
Preventive Maintenance:
- Always disconnect power by unplugging the unit before performing any maintenance.
- Always use a grounded power outlet.
- Keep the top surface clean and dry. Use a non-abrasive cleaner. Contact Corning for compatibility questions regarding cleaning agents.
- Clean spills promptly. If liquid or solid material enters the product, immediately disconnect power, use a non-abrasive cleaner, and discontinue use. Contact Corning for instructions regarding interior spills.
Warranty: Corning provides a two-year limited warranty from the date of purchase, covering defects in material and workmanship. The warranty is valid only if the product is used for its intended purpose and within the guidelines specified in the instruction manual. It does not cover damage from accidents, neglect, misuse, improper service, natural forces, or defects not related to original material or workmanship. Motor brushes, fuses, light bulbs, batteries, or damage to paint/finish are not covered. Transit damage claims should be filed with the transportation carrier.
Technical Support/Service: For questions or service inquiries, customers can contact Corning Customer Service via phone (1.800.492.1110 in the US/Canada, +1.978.442.2200 outside the US) or their local Corning sales office. A Return Authorization (RA) number must be obtained before returning any unit for service. Units should be returned in original or sufficiently packed packaging to prevent damage.
Equipment Disposal: According to Directive 2012/19/EU (WEEE), the units are marked with a crossed-out wheeled bin symbol, indicating they should not be disposed of with domestic waste. Buyers should follow instructions for reuse and recycling of WEEE provided with the products and available at www.corning.com/weee.