6
4. The HB-1 and HB-2 block heaters are only for indoor use.
5. A power cord according to IEC 60227 or IEC 60245 shall be used. The power
supply cord set shall have a supply cord with conductors providing a
cross-sectional area of 3G, 0.75mm
2
minimum.
6. The equipment only allowed to be connected to socket-outlet with PE. Make sure
the equipment is reliably connected to protective earth before use.
7. Always disconnect the power plug before maintenance.
8. Operate the block heater with volatile liquid may cause damage while heating the
liquid.
9. The lifetime of the electronic components may be shortened if the block heater is
operated with volatile liquid in a poor ventilated environment.
10. Do not directly pour water/liquid/ice on high temperature heating block to cool
down the temperature of the block. It may cause damage to the instrument and
fast-evaporated water/ liquid may be harmful to the operator.
11. Do not dispose of electrical appliances as unsorted municipal waste, use collection
facilities. Contact your local government for information regarding the collection
systems available.
12. If electrical appliances are disposed of in landfills or dumps, hazardous
substances can leak into the groundwater and get into the food chain, damaging
