Chemglass CG-1993-T - Manual (Page 4)

1 Safety Instructions
Warning!
• Read the operating instructions carefully
before use.
• Ensure that only trained staff work with the
instrument.
Risk of burn!
• Caution when touch the housing parts and
the hotplate which can reach temperature of
340°C.
• Pay attention to the residual heat after
switching off.
Protective ground contact！
• Make sure that the electrical socket is
grounded (protective ground contact) before
use.
• When operating wear personal safety protection to avoid
the risk from:
- Splashing and evaporation of liquids
- Release of toxic or combustible gases
• Use the instrument in a spacious area on a stable, clean,
non-slip, dry and fireproof surface. Do not operate the
instrument in explosive atmospheres, with hazardous
substances or around water.
• Gradually increase the speed, reduce the speed if:
- Stirring bar breaks away due to high speed
- The instrument is not running smoothly, or the
container is not centered on the plate
• Temperature must always be set to at least 50 C lower than
the flash point of the media used.
• Be aware of hazards due to:
- Flammable materials or media with a low boiling
temperature
- Overfilling of media
- Unsafe container
• Process pathogenic materials only in closed vessels.
• If the case of the stirrer bar is PTFE, please note
：
- Elemental fluorine, three fluoride and alkali metals will
corrode the PTFE and Halogen alkanes make it expand at
room temperature
- Molten alkali
，alkaline earth metals or their solution, as
well as the powder in second and third ethnic of the
Periodic Table of Elements will have chemical reaction
with PTFE when temperature reaches 300 ~ 400C .
• Check the instrument and accessories prior to each use.
2