2
LED Digital 7
”
Square Hotplate Stirrer
1. Safety Instructions
Warning!
•
Read the operating instructions carefully
before use.
•
Ensure that only trained staff works with the
instrument.
Risk of burn!
•
Caution when touch the housing parts and
the hotplate which can reach temperature of
550°C.
•
Pay attention to the residual heat after
switching off.
Protective ground contact
！
•
Make sure that socket must be grounded
(protective ground contact) before use.
• When work
ing wear personal safety guards to avoid the
risk from:
- Splashing and evaporation of liquids
- Release of toxic or combustible gases
• Set up the instrument in
a spacious are on a stable, clean,
non-slip, dry and fireproof surface. Do not operate the
instrument in explosive atmospheres, with hazardous
substances or under water.
• Gradually increase the speed, reduce the speed
if:
- Stirring bar breaks away due to high speed
- The instrument is not running smoothly, or container
moves on the base plate
• Temperature must always be set to at least
50
℃
lower
than the fire 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.
• Check the instrume
nt and accessories prior to each use.
Do not use damaged components. Safe operation is only
guaranteed with the accessories described in the
“
Accessories
”
chapter. Accessories must be securely
attached to the device and can not come off by themselves.
Always disconnect the plug before fitting accessories.
•
When the external temperature sensor needed, the tip of
the measuring sensor must be at least 5-10mm from vessel
bottom and wall.
