IKA RV 8 FLEX - Manual (Page 22)

22
Safety lift
When the device is switched off or the power supply disconnected,
the internal safety lift removes the evaporating flask from the
heating bath.
The safety lift at loss of power is designed for a maximum total
weight (glassware and solvent) of 3.1 kg.
Sample calculation of the maximum load with vertical glassware
and a 1 litre flask:
Condenser + receiving flask + evaporating flask + fittings=
1200gr + 400gr + 280gr + 100gr = 1980 gr
Maximum loading of solvent = 3100gr – 1980gr = 1120 gr
Due to the design, operation of the safety lift cannot be
guaranteed for higher loads!
When using other types of condensers such as dry ice or intensive
condensers, and also when using return distillation distributors
with slip-on condensers, it may be necessary to reduce the load by
the amount of the added weight of the glass apparatus.
Thus, prior to distillation, check whether the lift, laden with the
glassware and distillation material, rises when power is lost.
The safety lift must be checked daily prior to operation!
Attach the maximum total weight of 3.1 kg to the lift. Manually
move the lift to the lowest position and press the “Power“ key on
the front panel or the main switch on the back right side of the
device.
The evaporating flask is lifted out of the heating bath.
Note: The behaviour when switching off and disconnecting the
power supply exhibits a delay compared to the behaviour when
switching off using the “Power“ switch on the front membrane.
If the safety lift does not work, please contact the IKA
® Service
department.
For the evaporating equipment (evaporating flask plus contents),
the maximum permissible weight is 3.0 kg! Loads greater than this
risk breakage of glass at the steam pipe!
Ensure that the safety lift has been powered down.
When working with large loads, always use low speeds.
Unbalanced loads can result in breakage of the steam pipe !
• A vacuum may be formed inside the glassware in the case of
power outage. The glassware must be vented manually.
• Never operate the device when the
evaporation flask is rotating and the lift
is raised. Always lower the evaporation
flask into the heating bath first before
starting the rotation drive. Otherwise
hot tempering medium may be sprayed
out!
• Set the speed of the drive so no tempering medium is sprayed
out as a result of the evaporation flask rotating in the heating
bath. If necessary reduce the speed.
• Do not touch rotating parts during operation.
• Imbalance may result in uncontrolled resonance behavior of
the device or assembly. Glass apparatus may be damaged or
destroyed. In the event of unbalance or unusual noises, switch
off the appliance immediately or reduce the speed.
• The appliance does not start up again automatically following a
cut in the power supply.
• The device is only disconnected from the power supply network
if the device power switch is off or the plug is pulled out.
• The socket for the mains cord must be easily accessible.
For protection of the equipment
• The voltage stated on the type plate must correspond to the
mains voltage.
• Socket must be earthed (protective ground contact).
• Removable parts must be refitted to the appliance to prevent
the infiltration of foreign objects, liquids, etc.
• Protect the appliance and accessories from bumps and impacts.
• The appliance may only be opened by experts.
CAUTION