Guardian
TM
Hotplate-Stirrers
EN-11
CAUTION: THIS DOES NOT MEAN THAT THE TOP PLATE IS SAFE TO TOUCH.
Once the heater is turned off and the heater’s temperature cools, the
on the
control panel will disappear.
Typical Time to Boil Water
The chart below is an example of an approximate time to boil for the specified
amount of water in a specific vessel. These values are only approximate and can
vary from unit to unit. Values are based on 23°C water in an ambient environment
of 23°C.
Unit Size
Heater Temp. Limit
Volume of Water
Typical Time to Boil
Round Top
380°C
500mL in 1L beaker
≈
25 min
7
×
7
500°C
500mL in 1L beaker
≈
18 min
4
×
4
500°C
500mL in 1L beaker
≈
30 min
4. MAINTENANCE
4.1 Cleaning
WARNING
: Electric Shock Hazard. Disconnect the equipment from
the power supply before cleaning.
Make sure that no liquid enters the interior of the instrument.
Attention:
Do not use solvents, harsh chemicals, ammonia or
abrasive cleaning agents.
The housing may be cleaned with a cloth dampened with a mild detergent if
necessary.
4.2 Replacing Power Fuse
The use of a fuse of a different type or with a different value, or
bridging or shunting the fuse is not allowed and can possibly
cause a hazard to your safety and lead to instrument damage!
WARNING
:
Electric Shock Hazard.
Disconnect
the equipment from the power supply before
replacing the fuse.
Summary of Contents for Guardian 2000
Page 1: ...GuardianTM 2000 Hotplate Stirrer e G21 Instruction Manual...
Page 2: ......
Page 83: ......
