IKA RV 10 control FLEX auto - Manual (Page 41)

41
• Unpacking
- Please unpack the device carefully
- In the case of any damage a fact report must be sent immediately
(post, rail or forwarder)
• Delivery scope
see table
Useful information
The device is equipped with a piston-operated safety mechanism. The
glass apparatus may contain a vacuum following interruption to the po-
wer supply; vent the system before switching back on. If the power cuts
out, the evaporator piston is automatically lifted out of the heating bath
by an integrated gas spring.
CAUTION! The safety lift must be checked daily prior to operation. For
more information see the section entitled "Safety Instructions - Safety
Lift"!
In addition to offering a full range of manual and semi-automatic evapo-
ration operating modes, the RV 10 control rotary evaporator can also be
used for fully automatic and quantity-controlled evaporation processes.
Standard fittings for fully-automatic operation include a vacuum cont-
roller, a cooling water differential temperature measurement sensor and
a cooling water flow rate meter. The vacuum can be controlled in both
two-position and speed-controlled pumping operation with the help of
the integrated vacuum controller The device is designed for operation
with a cooling water supply system (e.g. laboratory thermostat), but can
also be run off a water supply line. Please refer to the Technical Data for
information on cooling water pressure, temperature constancy, flow rate
and local regulations.
We recommend using the RV 10.5001 water regulator valve when ope-
rating directly off a water supply line.
This valve allows the cooling water flow rate to be adjusted and automa-
tically cuts off the cooling water supply on completion of the distillation
process.
The RV 10.5002 water filter can be used to prevent particles of dirt pas-
sing from the water supply line into the valve mechanism.
If pressure reduction is required, we recommend fitting the RV 10.5003
pressure regulator valve in the pipe immediately downstream of the pick-
off point.
Automatic volume-dependent distillation: The apparatus must be
brought up to operating temperature. This is achieved by conducting a
test distillation.
Distillation is a thermal separating process for liquid compounds based
on substance-specific, pressure-dependent boiling points through evapo-
ration and subsequent condensation.
The boiling point temperature decreases with decreasing external pressu-
re which means that work is usually done under reduced pressure. In this
way the heating bath can be maintained at a constant temperature (e.g.
60 °C). Using the vacuum, the boiling point is set with a steam tempe-
rature of approx. 40 °C. The cooling water for the condensation cooler
should not be warmer than 20 °C (60-40-20 rule).
A chemical resistant membrane pump with a vacuum controller should
be used to create the vacuum. The pump is protected from solvent resi-
due by the addition of a Woulff bottle and/or a vacuum separator.
Working with a jet pump to create a vacuum can only be recommended
to a limited extent as the solvents may contaminate the environment
when using these systems.
Speed, temperature, piston size and system pressure all affect the eva-
porator air capacity.
The optimum capacity of the flow-through condenser is approx. 60%.
This corresponds to condensation on approx. 2/3 of the cooling coil.
With larger capacities there is the risk that the uncondensed solvent va-
pour will be extracted.
In order to prevent this, the condenser loading safety monitoring system
can be activated. Before activating the safety monitoring, first carry out
several distillations, noting the value given under menu “Settings”, menu
option “Drive”, item “Maximum heat rejection rate”. Now calculate the
heat rejection rate using the following formula:
Heat rejection rate threshold = maximum heat rejection rate * 1.3
Enter this value under menu “Settings”, menu option “Distillation”, item
“Heat rejection rate threshold”. The device will now stop the measure-
ment and issue an error message if the threshold for the condenser is
exceeded. If the configuration of the condenser equipment or the dis-
tillation process is modified, then it may be necessary to re-evaluate the
maximum condenser loading.
The factory setting for this value is 900 W.
Unpacking
RV 10 control V x x x x x x x x x x x x
RV 10 control V-C x x x x x x x x x x x x
RV 10 control FLEX x x x x x x x x x x x
RV 10 control V auto x x x x x x x x x x x x
RV 10 control V-C auto x x x x x x x x x x x x
RV 10 control FLEX auto x x x x x x x x x x x
Drive RV 10 contr
ol
Heating bath HB 10 Vertical glasswar
e RV 10.1
Vertical glasswar
e RV 10.10 coated
W
oulff bottle
Br
acket
Cooler locking device, compl. Vacuum hose (2 x 0.55 m) W
ater dischar
ge hose (1 x 1 m)
Oper
ating instructions
Ring spanner Hand
hold
RV 10.4002 vacuum valve for labor
atory vacuum system
N 920 speed-contr
ol
led vacuum pump