1. Úvod
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Corning PC-620D Stirring Hot Plate. The PC-620D is a laboratory instrument designed for precise temperature control and stirring of various solutions, featuring a durable Pyroceram top and digital displays for both temperature and stirring speed.
Figure 1: Corning PC-620D Stirring Hot Plate. This image shows the hot plate from an angled front view, highlighting the white Pyroceram top, the gray base, and the control panel with digital readouts for stirring speed (RPM) and temperature (Celsius), along with the 'Stir' and 'Heat' control knobs.
2. Bezpečnostní informace
Vždy dodržujte následující bezpečnostní opatření, abyste předešli zranění a poškození nástroje:
- Horký povrch: The top surface can reach high temperatures. Always allow the unit to cool completely before touching or moving. A "HOT TOP" indicator light will illuminate when the surface temperature exceeds 60°C (140°F).
- Elektrická bezpečnost: Connect the unit only to a properly grounded electrical outlet with the specified voltage (120V/60Hz). Do not operate with a damaged power cord.
- Větrání: Zajistěte dostatečné větrání kolem jednotky, aby se zabránilo přehřátí.
- Rozlití: In case of spills, immediately disconnect the power and clean the unit carefully after it has cooled. Avoid liquid ingress into the internal components.
- Osobní ochranné prostředky: Always wear appropriate personal protective equipment (e.g., heat-resistant gloves, eye protection) when operating the hot plate.
- Zamýšlené použití: Use the hot plate only for its intended laboratory heating and stirring applications. Do not use for heating flammable or explosive materials without proper safety protocols.
3. Co je v krabici
Po vybalení ověřte, zda jsou přítomny následující položky:
- One (1) Corning PC-620D Stirring Hot Plate
Pokud některé součásti chybí nebo jsou poškozené, ihned kontaktujte svého dodavatele.
4. Nastavení
- Umístění: Place the hot plate on a stable, level, and heat-resistant surface away from flammable materials. Ensure there is sufficient clearance around the unit for air circulation.
- Připojení napájení: Connect the power cord to the back of the hot plate and then plug the three-prong plug into a grounded 120V/60Hz electrical outlet.
- Počáteční kontrola: Before first use, inspect the unit for any visible damage from shipping.
5. Provoz
5.1 Ovládací prvky a indikátory
- Indikátor napájení: Green light illuminates when the unit is powered on.
- STIR Knob: Controls the stirring speed from 60 to 1150 RPM. Turn clockwise to increase speed.
- STIR RPM Display: Digital LED display shows the current stirring speed in RPM.
- HEAT Knob: Controls the heating temperature from 5°C to 550°C. Turn clockwise to increase temperature.
- TEMPERATURE Display: Digital LED display shows the set temperature in Celsius. It blinks until the set temperature is reached.
- HOT TOP Indicator: Red light illuminates when the top surface temperature exceeds 60°C (140°F), even if the heat function is turned off.
5.2 Stirring Function
- Place a suitable stir bar into your vessel (e.g., beaker, flask) containing the solution.
- Umístěte nádobu do středu pyroceramové desky.
- Turn the STIR knob clockwise to the desired RPM. The digital display will show the set speed.
- Adjust the speed as needed for optimal mixing without splashing.
- To stop stirring, turn the STIR knob counter-clockwise to the "Off" position.
5.3 Funkce ohřevu
- Place your vessel containing the sample on the Pyroceram top.
- Turn the HEAT knob clockwise to the desired temperature. The digital display will show the set temperature in 5°C increments.
- The temperature display will blink until the set temperature is reached, then it will remain steady.
- Monitor the HOT TOP indicator. It will remain lit as long as the surface temperature is above 60°C, even after the heat is turned off.
- To turn off heating, turn the HEAT knob counter-clockwise to the "Off" position. Allow the unit to cool down naturally.
6. Údržba a péče
- Čištění: Disconnect the power cord and allow the unit to cool completely before cleaning. Wipe the Pyroceram top and housing with a damp hadříkem a jemným čisticím prostředkem. Nepoužívejte abrazivní čisticí prostředky nebo rozpouštědla.
- Rozlití: Clean spills immediately to prevent residue buildup. For chemical spills, refer to appropriate safety data sheets for cleaning procedures.
- Skladování: Pokud varnou desku nepoužíváte, skladujte ji v čistém a suchém prostředí.
- Inspekce: Pravidelně kontrolujte napájecí kabel, zda nevykazuje známky poškození.
7. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Jednotka se nezapne. | No power to outlet; power cord disconnected or damaged. | Check power outlet; ensure power cord is securely connected and undamaged. |
| No stirring action. | Stir knob is off; stir bar not present or not coupled. | Turn stir knob to desired RPM; ensure stir bar is in vessel and centered. |
| Žádné topení. | Heat knob is off; temperature set too low. | Turn heat knob to desired temperature; increase set temperature. |
| Temperature display blinking. | Unit has not reached set temperature. | This is normal operation. Wait for the unit to reach the set temperature. |
8. Specifikace
| Parametr | Hodnota |
|---|---|
| Číslo modelu | 6795-620D |
| Materiál horní desky | Pyroceram sklokeramika |
| Rozměry horní desky | 10 x 10 palců (25.4 x 25.4 cm) |
| Teplotní rozsah | 5 °C až 550 °C (41 °F až 1022 °F) |
| Teplotní přírůstky | 5 °C |
| Rozsah rychlosti míchání | 60 až 1150 otáček za minutu |
| Elektrické požadavky | 120V/60Hz |
| Celkové rozměry (D x Š x V) | 19 x 18 x 8 palce |
| Hmotnost | 11.46 libry |
| Certifikace | UL, cUL Approved |
9. Záruka a podpora
The Corning PC-620D Stirring Hot Plate comes with a 2-letá záruka from the date of purchase, covering defects in materials and workmanship under normal use. For warranty claims, technical support, or service inquiries, please contact Corning customer service or your authorized distributor.
Please have your model number (6795-620D) and purchase information ready when contacting support.
