MRC ROVA-100S User manual

LED Digital Rotary Evaporator
Operation Instructions
ROVA-100S LED Digital Rotary Evaporator
Please carefully read the Instructions, and use
the product safely under the direction of the
Instructions.
If any information of shapes and performance
indicators changes, we will not notify this
otherwise.
MRC. 1.23

Disclaimer
•The intellectual property right on the manual belongs to MRC Laboratory
Instruments Limited (hereinafter referred to as “the Company”), i.e. relevant
copyright belongs to the company.
•Products of the company are under the patent protection countries and
regions (including obtained patents and patents being applied for).
•We elaborately prepared the manual in the attitude of being responsible for
the users. But we can’t guarantee that the contents of the manual are fully
correct. If any occasional or subsequent loss is caused by the use of the
Manual, the company will not be liable for this at all.
•The manual is a pure technical document, free of any implication or oblique
hint of any third party. Moreover, we won’t be liable for any user’s
misunderstanding upon the printer’s error(s).
•The company and any of the company’s employees will not bear any liability
for direct/indirect loss of information or stop of business (if any) caused by the
information of the manual or the product it mentions.
•The company reserves the right to change specification & price of the product.

•If any information of the manual changes, we will not notify this otherwise.
•The manual and any content of it must not be copied, abstracted or modified
in any form without the company’s written approval in advance.

Contents
Introduction........................................................................................................... 1
How to acquire help .............................................................................................. 1
Warranty ............................................................................................................... 1
1.Safety notes....................................................................................................... 2
2.Scope of application .......................................................................................... 8
3.Inspection .......................................................................................................... 9
3.1 Open-package inspection.......................................................................... 9
3.2 Package list ............................................................................................. 10
4.Control and display .......................................................................................... 11
4.1 Control..................................................................................................... 11
4.2 Display .................................................................................................... 15
5.Installation and testing ..................................................................................... 17
5.1 Installation ............................................................................................... 17
5.2 Testing ..................................................................................................... 21
6.Fault diagnosis ................................................................................................ 23
7.Maintenance and cleaning ............................................................................... 24
8.Relevant standards.......................................................................................... 26
9.Technical parameters....................................................................................... 27

1
Introduction
Welcome to use the Operating Instructions of Rotary Evaporator. Users are advised
to read carefully this manual before using this instrument, operate the instrument
according to the instructions contained herein and be aware of all precautions.
How to acquire help
If you encounter any problems or need help while installing or using this instrument,
please immediately contact the After-sales Service Department of the manufacturer
/ supplier.
Please prepare the following information and materials:
•Product serial number (on the instrument nameplate)
•Warranty card
•Description of problem phenomenon
•The method and operating steps you have undertaken to resolve the problem
•Your contact details including telephone number, fax number and email address.
Warranty
According to the manufacturer’s warranty clause, the warranty period of the product
is 24 months (since the purchase date) provided that it is used by the normal
operation method under the normal service conditions specified in the Manual. This

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warranty does not cover any performance degradation of or damage to the
instrument due to incorrect installation or operation, unauthorized disassembly or
repair or any other violations of the operating instructions contained herein. If any
related problem described in the terms of warranty occurs, please contact the
manufacturer / supplier.
1.Safety notes
•Please carefully read the Manual before operating the product, and observe
the specifications on safe operation.
•Please properly keep the operating instructions for easy reference in case of
need.
•Please ensure only suitably trained personnel can operate this instrument.
•Please comply with the safety rules, personal safety and accident prevention
norms, especially when creating vacuum!
•According to the type of medium handled, please wear suitable protective
devices when operating the instrument; otherwise, the following dangers may
occur:

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-Splatter of liquids
-Fly-out of parts
-Contamination of human body, hair or clothes by splattered substances
•Warning! Inhale of contact with toxic liquids, gases, spatters, vapor, dust,
biological or microbiological medium might cause damage to the operator.
•Place the instrument on a stable, clean, antiskid, dry & fireproof table surface.
•Make sure there is sufficient space above the instrument and the glass
assembly might exceed the height of the instrument.
•Before use, please carefully examine the instrument and accessories
especially the glass assembly for any damage. Please do not use any
damaged parts.
•Ensure the glass assembly is free of stress! Each of the following reasons
might result in damage to the glass assembly:
-Stress due to incorrect installation
-Effect of external mechanical force
-Sharp change to the ambient temperature
•Ensure the instrument will not move due to vibration when turning on the
instrument.

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•Note the danger caused by the following circumstances:
- Flammable substance
- Flammable low-boiling-point medium
- Breakage of glass component
•Warning! Never distill or heat any substance whose ignition point is lower than
the temperature set for the safety of the heating bath.
•The heating bath’s safety temperature shall at least 25 °C lower than the
ignition point of the medium being handled.
•Please don’t operate or use this instrument in an explosive environment or
underwater or use this instrument to handle any dangerous substance.
•This instrument is only suitable for the medium that does not react with the
energy generated in the handling process in a way that might cause danger.
Meanwhile, the substance being handled may not produce danger due to
energy generated in any other manner such as illumination reaction.
•The instrument must be monitored all the time when operating the instrument.
•Please don’t operate this instrument under overpressure.
•To ensure the effective condensation of the motor system, please do not block
the vent of the motor system.

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•Only use of the accessories in the list of “optional accessories” can guarantee
the operational safety.
•Please refer to the operating instructions for heating kettle.
•Please refer to the operating instructions for optional accessories.
•Please use this instrument in a closed fume hood or other suitable protective
device.
•Select the distilling device according to the amount to be distilled and the
distillation type. The condenser must work normally. Please monitor the flow
rate of the coolant at the outlet of the cooler.
•To prevent pressure buildup, the glass assembly shall be kept vented when
operating under normal pressure, such as keeping the condenser open.
•Please note that gases, vapor or other substances can pose danger through
overflow from the upper opening of the condensation tube. To minimize or
avoid such danger, please take suitable measures, such as connecting the
cooling tube and scrubbing bottle or other effective extraction devices
downwards.
•The glass evaporating flask may not be heated on one side. The rotating
evaporating flask must rotate at the heating phase.

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•The glass assembly’ design pressure tolerance is 10mbar. The venting valve
(see the part of “Testing”) must be opened before heating and once again after
cooling. When performing vacuum distillation, the steam must be condensed
before release or released safely.
If the residue after distillation is likely to be decomposed when exposed to
oxygen, please add only gas for stress release into it.
•Warning! Please be careful be avoid the formation of peroxides, as the
decomposition of peroxides accumulated in the distillation process might result
in explosion.
Please protect any liquid forming peroxides from ray of light, especially
ultraviolet irradiation. Please be careful to examine formation of any peroxides
before distillation and to remove the peroxides if any. Many organics are easy
to form peroxides, such as methoxypyridine, diethyl ether, dioxane,
tetrahydrofuran, unsaturated hydrocarbostyril, such as tetrahydronaphthalene,
diene, isopropylbenzene, ketone and solutions of the aforesaid substances.
•Warning! The heating bath, heating medium, evaporating flask and glass
assembly might become hot in the operation process and remain hot for a
while after stop of the operation! Before further operation, please let each part

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cool down.
•Note: be careful to avoid boiling delay! When the instrument is not started up
and rotated, never heat the evaporating flask! Sudden appearance of foams or
gases indicates that the medium inside the evaporating flask begins
decomposing. Please immediately shut down the heating bath and lift the
evaporating flask above the heating bath, keep the surrounding danger area
well ventilated and inform surrounding personnel.
•Note! When the evaporating flask rotates, never operate the instrument.
Before the motor is started up, please lower the evaporating flask down to the
heating bath, otherwise the boiling heating medium might splatter.
•When operating the instrument, if necessary, please reduce the motor speed
to prevent the medium in the heating bath from splattering.
•When operating the instrument, never touch any rotating parts. Due to the
instrument or fabrication problems, the instrument might be unbalanced,
possibly damaging the glass assembly. When imbalance or abnormal noise
occurs, please immediately turn off the instrument or reduce the rotation
speed.
•In case of powering on after power failure, the instrument will not automatically

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be started up.
•The power supply to the instrument will be disconnected only when the
instrument is turned off or the power plug is pulled off.
•The power socket must be easy to operate.
•The actual supply voltage must be consistent with the voltage specified on the
instrument’s nameplate.
•The power socket must be grounded.
•To prevent possible infiltration of outside liquid, moving parts must be mounted
in place.
•Ensure the instrument and its accessories are protected from extrusion and
collision.
•Only professional repairman may open the instrument.
2.Scope of application
This instrument is designed for such application environments as schools, labs
and factories, in conjunction with the optional accessories recommended by the

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manufacturer, which may be used for:
•Rapid softening of distilled liquid
•Distillation of solutions or suspensions
•Crystallization, synthesis or cleaning of chemicals
•Drying of powder or particulate substances
•Recovery of solvents
This instrument is intended for use in the following environment:
•Altitude: ≤2,000m ASL;
•Ambient temperature: 0-40℃;
•Voltage fluctuation: within the range of -10%~+10% of normal value (the
product is designed for indoor socket);
The product is unusable in residential area or under the restrictions specified in
Chapter 1.
3.Inspection
3.1 Open-package inspection
If you find any damage on the package, please specify the damage on the
receipt. If you find any internal damage after opening the package, please contact

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supplier or manufacturer.
Caution:
1. If you find any visible damage on the product, please don’t
connect the product to power supply.
3.2 Package list
Name Qty.
Main unit 1
Heating bath 1
Power cable 2
Vertical glass assembly 1
Operating manual 1
Table 1

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4.Control and display
4.1 Control
Fig. 1
Fig. 2

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Fig. 3
Fig. 4
LED
display
Adjustment
knob
Forward
indicator
Reverse
indicator
Forward and reverse rotation
interval setting button

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Fig. 5
Name Description
LED display Indicates the current working status and parameter setting.
Forward indicator
The indicator is on when the instrument is in the state of
forward rotation only
Reverse indicator The indicator is on when the instrument is rotating forwardly
and reversely in turn
Forward and
reverse rotation
interval setting
button Int
Press this key to enter the state of setting the forward and
reverse rotation interval time. Turning the adjustment knob
can set the intermittent left and right rotation time within the
range of 1-
999 sec. When set to 0 sec, the instrument
rotates forward only
Heating
indicator
Temperature
adjustment knob
Water mode
indicator
Oil mode
indicator

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Adjustment knob
Turn the knob clockwise to increase the parameter and
counterclockwise to decrease the parameter
Press this key to start / stop the instrument
Water mode
indicator
The indictor is on when the heating bath is in the water bath
mode
Oil mode indicator The indicator is on when the heating bath is in the oil bath
mode
Heating indicator The indicator is on when the Heating bath is in the heating
state
Temperature
adjustment knob
Turn the knob clockwise to increase the parameter and
counterclockwise to decrease the parameter
Press this key to start / stop the instrument
Press the key for 3s to switch the heating mode
Heating bath
power switch
Turn on / off the main power supply to the heating bath
Table 2

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4.2 Display
After the main unit is turned on, the interface is on and indicates the real-time speed:
Fig. 6
This interface indicates the real-time speed. Turn the adjustment knob to set the
speed and press the adjustment knob to start the instrument. The rotation speed
can be changed by turning the adjustment knob while the instrument is in operation.
After setting, the interface automatically changes to real-time speed.
Press the “INT” key to stop the motor, with LED indicating “txxx” (xxx is the
intermittent operation interval, to be set within 1-999sec), as shown in the figure.
Fig. 7
Turning the adjustment knob can adjust the forward and reverse rotation interval
time. The instrument only rotates forward when the forward and reverse rotation
interval time is 0.
After setting, by pressing the “INT” key, the interface changes to the real-time speed

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display.
When the heating bath is turned on, water mode is the default mode, the water
mode indicator is on and the interface is on, indicating the real-time temperature:
Fig. 8
Turn the temperature adjustment knob to set the target temperature of the heating
bath. After setting, by pressing the knob, the heating indicator is on and the heating
process begins. In the heating process, the target temperature can be changed by
turning the knob. After setting, the interface automatically changes to real-time
temperature.
Press the knob for 3s to switch the heating mode, with the corresponding indicator
being on.
Water bath mode display:
Fig. 9
Oil bath mode display: