Safety instructions – IKA RV 10 digital FLEX User Manual

Page 22

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Safety instructions

• Use the HB 10.2 cover or the HB 10.1 spray guard.
• Only use the device under an all side-closed exhaust, or a compa rable

protective device.

• Adapt the quantity and the type of distilland to the size of the distilla-

tion equipment. The cooler must work properly. Monitor the coolant
flow rate at the cooler outlet.

• The glass equipment must always be ventilated when working under

normal pressure (e.g. open outlet at cooler) in order to prevent a pres-
sure build-up.

• Please note that dangerous concentrations of gases, vapours or parti-

culate matter can escape through the outlet at the cooler. Take appro-
priate action to avoid this risk, for example, downstream cold traps,
gas wash bottles or an effective extraction system.

• Evacuated glass vessels must not be heated on one side; the evapora-

ting flask must rotate during the heating phase.

• The glassware is designed for operation under a vacuum of up to 1

mbar. The equipment must be evacuated prior to heating (see chap-
ter ”Commissioning”). The equipment must only be aired again after
cooling. When carrying out vacuum distillation, uncondensed vapours
must be condensed out or safely dissipated. If there is a risk that the
distillation residue could disintegrate in the presence of oxygen, only
inert gas must be admitted for stress relief

Caution! Avoid peroxide formation. Organic peroxides can accumula-

te in distillation and exhaust residues and explode while decomposing!

Keep liquids that tend to form organic peroxides away from light, in

particular from UV rays and check them prior to distillation and ex-
haust for the presence of peroxides. Any existing peroxides must be
eliminated. Many organic compounds are prone to the formation of
peroxides e.g. dekalin, diethyl ether, dioxane, tetrahydrofuran, as well
as unsaturated hydrocarbons, such as tetralin, diene, cumene and al-
dehydes, ketones and solutions of these substances.

Danger of burning! The heating bath, tempering medium, evapora-

tor piston and glass assembly can become hot during operation and
remain so for a long time afterwards! Let the components cool off
before continuing work with the device.

ATTENTION! Avoid delayed boiling! Never heat the evaporating flask

in the heating bath without switching on the rotary drive!Sudden fo-
aming or exhaust gases indicate that flask content is beginning to de-
compose. Switch off heating immediately. Use the lifting mechanism
to lift the evaporator piston out of the heating bath. Evacuate the
danger zone and warn those in the surrounding area!

Caution! Never operate the device when the evaporator piston is rota-

ting and the lift is raised. Start at low speed and lower the evaporating

flask into the heating bath, increase to desired speed. 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 evaporator piston rotating in the heating bath. If neces-
sary reduce the speed.

• Do not touch rotating parts during operation.
• Imbalance may result in uncontrolled resonance behaviour of the device

or assembly. Glass apparatus may be damaged or destroyed. In the
event of unbalance or unusual noises, switch off the appliance imme-
diately or reduce the speed.

• A vacuum may form inside the glassware in case of power outage.
• 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.

• if the device power switch is off or the plug is pulled out.
• The socket for the mains cord must be easily accessible.

For your protection

Read the operating instructions in full before

starting up and follow the safety instructions.

• Keep the operating instructions in a place where they
can be accessed by everyone.
• Ensure that only trained staff work with the appliance.

• Follow the safety instructions, guidelines, occupational health and

safety and accident prevention regulations. When working under a

vacuum in particular!

• Wear your personal protective equipment in accordance with the ha-

zard category of the medium to be processed. Otherwise there is a
risk of:
- splashing liquids,
- body parts, hair, clothing and jewellery getting caught,
- injury as a result of glass breakage.

Caution! Inhalation of or contact with media such as poisonous li-

quids, gases, spray mist, vapours, dusts or biological and microbiologi-
cal materials can be hazardous to user.

• Set up the device in a spacious area on an even, stable, clean, non-slip,

dry and fireproof surface.

• Ensure that there is sufficient space above the device as the glass as-

sembly may exceed the height of the device.

• Prior to each use, always check the device, accessories and especially

the glass parts for damage. Do not use damaged components.

• Ensure that the glass assembly is tension-free! Danger of cracking as

a result of:
- stress due to incorrect assembly,
- external mechanical hazards,
- local temperature peaks.

• Ensure that the stand does not start to move due to vibrations respec-

tively unbelance.

• Beware of hazards due to:

- flammable materials,
- combustible media with a low boiling temperature.

Caution! Only process and heat up media that has

a flash point higher than the adjusted safe tempe-
rature limit of the heating bath that has been set.
The safe temperature limit of the heating bath must al-

ways be set to at least 25 °C lower than the fire point of the media

• Do not operate the appliance in explosive atmospheres, with hazar-

dous substances or under water.

• Only process media that will not react dangerously to the extra energy

produced through processing. This also applies to any extra energy
produced in other ways, e.g. through light irradiation.

• Tasks with the device must only be performed when operation is mo-


• Operation with excess pressure is not permitted (for cooling water

pressure see "Technical Data")

• Do not cover the ventilation slots of the device in order to ensure ade-

quate cooling of the drive.

• There may be electrostatic discharges between the medium and the

drive which could pose a direct danger.

• The appliance is not suitable for manual operation.
• Safe operation is only guaranteed with the accessories described in the

”Accessories” chapter.

• Refer to the operating instructions for the HB 10 heating bath.
• Refer to the operating instructions for the accessories, e.g. vacuum


• Position the positive pressure outlet of the vacuum pump under a fume


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