Buchi V-850, V-855 Operation Manuals

Vacuum Controller V-850 / V-855

Operation Manual

093081 en

Imprint

Product Identification:
Operation Manual (Original), Vacuum Controller V-850 / V-855

093081 en

Publication date:

08.2015, Version E

BÜCHI Labortechnik AG
Meierseggstrasse 40
Postfach
CH-9230 Flawil 1

E-Mail: [e-mail]

BUCHI reserves the right to make changes to the manual as deemed necessary in the light of experience; espe­cially in respect to structure, illustrations and technical detail.

This manual is copyright. Information from it may not be reproduced, distributed, or used for competitive purpos­es, nor made available to third parties. The manufacture of any component with the aid of this manual without
prior written agreement is also prohibited.

Table of contents

3

V-850 / V-855 Operation Manual, Version E

Table of contents

1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1 Reference documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.2 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.1 User qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Improper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 Safety warnings and safety signals used in this manual . . . . . . . . . . . . . . . . . 7

2.5 Product safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.6 General safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.1 Basic instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.2 Standard accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.3 Optional accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Technical data overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 Materials used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.4 Solvent table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4 Description of function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 Functional principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1.1 Control keys of Vacuum Controller V-850/855. . . . . . . . . . . . . . . . . . . . . 16

4.1.2 Rear connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2 Controller operation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.1 Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.2 Timer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.3 AutoDest mode (V-855 only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.4 EasyVac mode (V-855 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.5 Gradient mode (V-855 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.6 Repeat mode (V-855 only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.7 LabVac mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Read this manual carefully before installing and running your system and note the safety precautions
in chapter 2 in particular. Store the manual in the immediate vicinity of the instrument, so that it can be
consulted at any time.
No technical modifications may be made to the instrument without the prior written agreement of
BUCHI. Unauthorized modifications may affect the system safety or result in accidents.
This manual is copyright. Information from it may not be reproduced, distributed, or used for competi­tive purposes, nor made available to third parties. The manufacture of any component with the aid of
this manual without prior written agreement is also prohibited.

The English manual is the original language version and serves as basis for all translations
into other languages. Other language versions can be downloaded at www.buchi.com.

Table of contents

4

V-850 / V-855 Operation Manual, Version E

5 Putting into operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.1 Setting up the Rotavapor with the Vacuum Controller V-850 / V-855 . . . . . . . . . 20

5.1.1 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.1.2 Cable connections to the Rotavapor . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.2 Communication of Rotavapor and Vacuum Controller V-850 / V-855 . . . . . . . . . 21

5.2.1 Rotavapors R-200 / R-205 and R-210 / R-215 . . . . . . . . . . . . . . . . . . . . 21

5.2.2 Rotavapors R-220 SE and R-220 and R-250 with firmware 2.06 or higher . . . . . . 21

5.3 Installing the AutoDest probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.4 Initial software settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.1 Menu structure of the Vacuum Controller V-850 / V-855 software . . . . . . . . . . . 26

6.2 Vacuum Controller V-850 / V-855 main screen in Manual mode . . . . . . . . . . . . 27

6.3 Selecting the distillation conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.4 Starting a distillation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.4.1 Quick start of manual distillation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.4.2 Advanced settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.4.3 Working with a connected F-series chiller . . . . . . . . . . . . . . . . . . . . . . . 31

6.5 Vacuum Controller V-850 / V-855 main screen in Gradient mode . . . . . . . . . . . 32

6.6 General information on buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.6.1 Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.6.2 Menu buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.7 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.7.1 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.7.2 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.7.3 Program (V-855 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.7.4 Solvent library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.7.5 Extra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.8 Calibrating the pressure sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.8.1 Offset calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.8.2 Simple calibration (without temperature compensation) . . . . . . . . . . . . . . . . 41

6.8.3 Complete calibration with temperature compensation . . . . . . . . . . . . . . . . . 41

6.9 Recirculating chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.10 Tips and tricks for a distillation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.10.1 What to do when the solvent starts foaming? . . . . . . . . . . . . . . . . . . . . . 44

6.10.2 How to find out the distillation conditions for a solvent? . . . . . . . . . . . . . . . . 44

6.10.3 How to start a distillation without determining a pressure setpoint? . . . . . . . . . . 44

7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.1 Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.2 Functional test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8.1 Malfunctions and their remedy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8.2 Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9 Shutdown, storage, transport and disposal . . . . . . . . . . . . . . . . . . . . . . . . 48

9.1 Storage and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

9.2 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10 Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11 Declarations and requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

11.1 FCC requirements (for USA and Canada) . . . . . . . . . . . . . . . . . . . . . . . 51

11.2 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

1 About this manual

5

V-850 / V-855 Operation Manual, Version E

1 About this manual

This manual describes the vacuum controller and provides all information required for its safe opera­tion and to maintain it in good working order.
It is addressed in particular to laboratory personnel and operators.

NOTE:

The symbols pertaining to safety (WARNINGS and ATTENTIONS) are explained in chapter 2.

1.1 Reference documents

For information on the Rotavapor R-210 / R-215 and the Vacuum Pump V-700 / V-710, please refer to
the corresponding manuals available in English, German, French, Spanish and Italian:

• Rotavapor R-210 / R-215, Operation Manual numbers 93076–93080

• Vacuum Pump, Operation Manual numbers 93090–93094

1.2 Trademarks

The following product names and any registered and unregistered trademarks mentioned in this
manual are used for identification purposes only and remain the exclusive property of their respective
owners:

• Rotavapor® is a registered trademark of BÜCHI Labortechnik AG

1.3 Abbreviations

FFKM: Perfluoroelastomer
PBT: Polybutylene Terephthalate
PES: Polyester
PVC: Polyvinyl chloride
PEEK: Polyetheretherketone

2 Safety

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V-850 / V-855 Operation Manual, Version E

2 Safety

This chapter points out the safety concept of the instrument and contains general rules of behavior
and warnings from hazards concerning the use of the product.
The safety of users and personnel can only be ensured if these safety instructions and the safety­related warnings in the individual chapters are strictly observed and followed. Therefore, the manual
must always be available to all persons performing the tasks described herein.

2.1 User qualification

The instrument may only be used by laboratory personnel and other persons who on account of
training or professional experience have an overview of the dangers which can develop when
operating the instrument.
Personnel without this training or persons who are currently being trained require careful instruction.
The present Operation Manual serves as the basis for this.

2.2 Proper use

This instrument has been designed and built for laboratories. Its proper use includes regulating and
displaying a vacuum in a working range between 0 mbar up to atmospheric pressure.

The vacuum controller is used for:

• Distillation instruments, especially rotary evaporators

• Vacuum drying cabinets

2.3 Improper use

Applications not mentioned above are improper. Also, applications, which do not comply with the
technical data, are considered improper. The operator bears the sole risk for any damages caused by
such improper use.

The following uses are expressly forbidden:

• Use of the instrument in rooms which require ex-protected instruments.

• Use as calibrating instrument for other instruments.

• Use in excess pressure.

2 Safety

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V-850 / V-855 Operation Manual, Version E

2.4 Safety warnings and safety signals used in this manual

DANGER, WARNING, CAUTION and NOTICE are standardized signal words for identifying levels of
hazard seriousness of risks related to personal injury and property damage. All signal words, which are
related to personal injury are accompanied by the general safety sign.

For your safety it is important to read and fully understand the below table with the different signal
words and their definitions!

Sign Signal word Definition Risk level

DANGER

Indicates a hazardous situation which, if not avoided, will result in
death or serious injury.

★★★★

WARNING

Indicates a hazardous situation which, if not avoided, could result
in death or serious injury.

★★★☆

CAUTION

Indicates a hazardous situation which, if not avoided, may result
in minor or moderate injury.

★★☆☆

no

NOTICE

Indicates possible property damage, but no
practices related to personal injury.

★☆☆☆

(property damage only)

Supplementary safety information symbols may be placed in a rectangular panel on the left to the
signal word and the supplementary text (see below example).

Space for

supplementary

safety

information

symbols.

!

SIGNAL WORD

Supplementary text, describing the kind and level of hazard/risk seriousness.

• List of measures to avoid the herein described hazard or hazardous situation.

• ...

• ...

Table of supplementary safety information symbols
The below reference list incorporates all safety information symbols used in this manual and their

meaning.

Symbol Meaning

General warning

Electrical hazard

Device damage

2 Safety

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V-850 / V-855 Operation Manual, Version E

Symbol Meaning

Hot item, hot surface

Additional user information
Paragraphs starting with NOTE transport helpful information for working with the device/software or its

supplementaries. NOTEs are not related to any kind of hazard or damage (see example below).

NOTE

Useful tips for the easy operation of the instrument.

2.5 Product safety

Safety warnings in this manual (as described in section 2.4) serve to make the user alert and to avoid
hazardous situations emanating from residual dangers by giving appropriate counter measures.
However, risks to users, property and the environment can arise when the instrument is damaged,
used carelessly or improperly.
The following safety messages show hazards of general kind which may occur when handling the
instrument. The user must observe all listed counter measures in order to achieve and maintain the
lowest possible level of hazard.

Additional warning messages can be found whenever actions and situations described in this manual
are related to situational hazards.

NOTICE

Risk of instrument damage by wrong mains supply.

• External mains supply must meet the voltage given on the type plate

NOTE

Electromagnetic radiation may affect the pressure measurement so that the measured pressure value
can be adulterated.

• Keep the instrument from the influence of electromagnetic radiation.

2 Safety

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V-850 / V-855 Operation Manual, Version E

2.6 General safety rules

Responsibility of the operator
The head of laboratory is responsible for training his personnel.

The operator shall inform the manufacturer without delay of any safety-related incidents which might
occur during operation of the instrument. Legal regulations, such as local, state and federal laws
applying to the instrument must be strictly followed.

Duty of maintenance and care
The operator is responsible for ensuring that the instrument is operated in proper condition only, and

that maintenance, service, and repair jobs are performed with care and on schedule, and by autho­rized personnel only.

Spare parts to be used
Use only genuine consumables and genuine spare parts for maintenance to assure good system

performance and reliability. Any modifications to the spare parts used are only allowed with the prior
written permission of the manufacturer.

Modifications
Modifications to the instrument are only permitted after prior consultation with and with the written

approval of the manufacturer. Modifications and upgrades shall only be carried out by an authorized
BUCHI technical engineer. The manufacturer will decline any claim resulting from unauthorized modifi­cations.

3 Technical data

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V-850 / V-855 Operation Manual, Version E

3 Technical data

This chapter introduces the reader to the instrument specifications. It contains the scope of delivery,
technical data, requirements and performance data.

3.1 Scope of delivery

Check the scope of delivery according to the order number.

3.1.1 Basic instrument

Basic instrument V-850

Product Order number

Vacuum Controller V-850 stand alone (100 V–230 V), including power pack (47259) 47231

Vacuum Controller V-850 for R-210 / R-215 and V-700 / V-710 (100 V–230 V), including support
and communication cable

47299

Vacuum Controller V-850 for R-200 / R-205 (100 V–230 V), including support, communication cable
R-200 / R-205 and power pack (47259)

47297

Vacuum Controller V-850 for R-220 SE (100 V- 230 V) 48531

Vacuum Controller V-850 for R-250 (100 V- 230 V), including support, communication cable R-250 and
power pack (47259)

47293

Basic instrument V-855

Product Order number

Vacuum Controller V-855 stand alone (100 V–230 V) without automatic distillation probe 47235,
including power pack (47259)

47232

Vacuum Controller V-855 for R-210 / R-215 and V-700/710 (100 V–230 V) without automatic distilla­tion probe 47235, including support and communication cable (47280)

47298

Vacuum Controller V-855 for R-200 / R-205 (100 V–230 V) without automatic distillation probe 47235,
including support, communication cable R-200 / R-205 and power pack (47259)

47296

Vacuum Controller V-855 for R-220 SE (100 V- 230 V) without automatic distillation probe 47235 48532

Vacuum Controller V-855 for R-250 (100 V- 230 V) without automatic distillation probe 47235, including
support, communication cable R-250 and power pack (47259)

47292

3 Technical data

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V-850 / V-855 Operation Manual, Version E

3.1.2 Standard accessories

Standard accessories

Product Order number

Operation Manual:

English 93081

German 93082

French 93083

Italian 93084

Spanish 93085

3.1.3 Optional accessories

Optional accessories

Product Order number

1 Valve unit for Vacuum Controller V-850 /
R-855, including holder

47160

1 Holder for valve unit on Rotavapor
R-210 / R-215

47164

Woulff bottle complete including holder 47170

Woulff bottle glass part, P+G coated 47233

Holder for Woulff bottle 47164

1 Remote control for V-850 / V-855
complete

47230

Water jet pump unit B-767 with 2
magnetic valves 24 V for pump and
cooling water (with an FFKM-backstroke
valve)

31357

Water jet pump unit B-764 with magnetic
valve 24 V (with an FFKM-backstroke
valve) (see example on the left)

31358

3 Technical data

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V-850 / V-855 Operation Manual, Version E

Optional accessories (cont.)

Product Order number

Vacuum valve 24 V/2.4 mm for use with
a 1 l Rotavapor with Y-piece for vacuum
controller

31353

Vacuum valve 24 V/4 mm for use with a
20 l Rotavapor

31354

Vacuum valve 24 V/4 mm for use with a
50 l Rotavapor (see example on the left)

31355

Cooling water valve 24 V 31356

Water control valve ½” 11606

Connecting cable V-850 / V-855 (1200
mm)for R-220 / R-250

40758

Connecting cable V-850 / V-855 (250
mm) for R-200 / R-205

40742

Control cable between vacuum controller
and Vacuum Pump RJ 45,
330 mm (speed control)

44288

Control cable between Rotavapor and
Vacuum Pump and/or chiller RJ 45,
2000 mm (speed control)

44989

Control cable between Rotavapor and
Vacuum Pump and/or chiller RJ 45,
5000 mm (speed control)

11056240

3 Technical data

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V-850 / V-855 Operation Manual, Version E

Control cable Mini DIN 1500 mm between
vacuum controller and vacuum pump (on/
off) compatible with Vacuum Controller
V-800 / V-805 / V-850 / V-855 and
Vacuum Pump V-500 / V-1000

38010

Optional accessories (cont.)

Product Order number

Support set for vacuum controller or
manometer with needle valve for
R-210 / R-215, V-700 / V-710

47280

Power pack for V-850 / V-855 (stand­alone)

47259

Automatic distillation probe for V-855
(only for glass assembly V + S)

47235

1

2

Vacuum tube 6/16 mm a 17622

Cooling water tube silicone 6/9 mm b 04133

3 Technical data

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V-850 / V-855 Operation Manual, Version E

3.2 Technical data overview

Technical data

Vacuum Controller V-850 / V-855

Dimensions casing ( W×H×D) 160×115×120 mm

Weight 700 g

Power supply 30 VDC from RJ-45 connector when using Controller

with a Rotavapor R-210 / R-215 or Vacuum Pump V-700
/ V-710 or from the power pack for stand-alone versions.

Frequency 50/60 Hz

Power consumption 10 W

Interfaces USB (data transmission), RS 232 / RS 485 (communica-

tion), remote control, cooling water valve, Switch Box,
vacuum valve

Environmental conditions For indoor use only 10-40 °C, up to 2000 m, maximum

relative humidity 80 % for temperatures up to 31 °C, and
then linearly decreasing to 50 % at 40 °C

Magnetic valve supply 24 V

Vacuum connection GL14

Measuring principle Capacitive

Measuring range 1400–0 mbar

Control range 1100–1 mbar

Accuracy ±2 mbar (±1 digit) following alignment at constant

temperature

Temperature response 0.07 mbar/K

-1

Display range 0–1400 mbar

Hysteresis Automatic or 1–500 mbar

Installation category II

Pollution degree 2

Conformity CSA/CE

Noise level < 70 dB

3.3 Materials used

Materials used

Component Material designation

Pressure foil Polyester

Casing PBT

Diaphragm (aeration valve) FFKM

Aeration valve PEEK

3 Technical data

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V-850 / V-855 Operation Manual, Version E

3.4 Solvent table

Solvent Formula

Molar mass

in g/mol

Evaporation energy

in J/g

Boiling point

at 1013 mbar

Density in

g/cm

3

Vacuum in mbar for

boiling point at 40 °C

Acetone CH3H6O 58.1 553 56 0.790 556

n-amylalcohol, n-pentanol C5H12O 88.1 595 37 0.814 11

Benzene C6H

6

78.1 548 80 0.877 236

n-butanol C4H10O 74.1 620 118 0.810 25

tert. butanol (2-methyl-2-propanol) C4H10O 74.1 590 82 0.789 130

Chlorobenzene C6H5Cl 112.6 377 132 1.106 36

Chloroform CHCl

3

119.4 264 62 1.483 474

Cyclohexane C6H

12

84.0 389 81 0.779 235

Diethylether C4H10O 74.0 389 35 0.714 850

1,2-dichloroethane C2H4Cl

2

99.0 335 84 1.235 210

1,2-dichloroethylene (cis) C2H2Cl

2

97.0 322 60 1.284 479

1,2-dichloroethylene (trans) C2H2Cl

2

97.0 314 48 1.257 751

Diisopropyl ether C6H14O 102.0 318 68 0.724 375

Dioxane C4H8O

2

88.1 406 101 1.034 107

DMF (dimethyl-formamide) C3H7NO 73.1 153 0.949 11

Acetic acid C2H4O

2

60.0 695 118 1.049 44

Ethanol C2H6O 46.0 879 79 0.789 175

Ethylacetate C4H8O

2

88.1 394 77 0.900 240

Heptane C7H

16

100.2 373 98 0.684 120

Hexane C6H

14

86.2 368 69 0.660 360

Isopropylalcohol C3H8O 60.1 699 82 0.786 137

Isoamylalcohol (3-methyl-1-butanol) C5H12O 88.1 595 129 0.809 14

Methylethylketone C4H8O 72.1 473 80 0.805 243

Methanol CH4O 32.0 1227 65 0.791 337

Methylene chloride, dichloromethane CH2CI

2

84.9 373 40 1.327 850

Pentane C5H

12

72.1 381 36 06.26 850

n-propylalcohol C3H8O 60.1 787 97 0.804 67

Pentachloroethane C2HCl

5

202.3 201 162 1.680 13

1,1,2,2-tetra-chloroethane C2H2Cl4167.9 247 146 1.595 20

Tetrachlorocarbon CCl

4

153.8 226 77 1.594 271

1,1,1-trichloroethane C2H3Cl3133.4 251 74 1.339 300

Tetra-chloro-ethylene C2Cl

4

165.8 234 121 1.623 53

THF (tetrahydrofurane) C4H8O 72.1 67 0.889 374

Toluene C7H

8

92.2 427 111 0.867 77

Trichloroethylene C2HCl

3

131.3 264 87 1.464 183

Water H2O 18.0 2261 100 1.000 72

Xylene (mixture) C8H

10

106.2 389 25

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V-850 / V-855 Operation Manual, Version E

4 Description of function

This chapter explains the basic principle of the instrument, shows how it is structured and gives a
functional description of the assemblies.

4.1 Functional principle

The Vacuum Controller V-850 and V-855 can be universally used for the display, adjustment and
control of vacuum. The integrated aeration valve and the precision pressure sensor are resistant to
chemicals making the Vacuum Controller a compact unit suitable for numerous applications in the
Lab. When using the vacuum controller with a Vacuum Pump V-700 or V-710 the new speed control
feature allows a hysteresis-free vacuum control with a low noise level.

4.1.1 Control keys of Vacuum Controller V-850 / V-855

1

2

3

4

5

2 2 2

a Selection knob
b Functional buttons
c Display

d START button
e STOP button

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4.1.2 Rear connections

1

2

3

4

5

6

7

12

8

11

a Connection for AutoDest probe/switch box (AS/SB)
b Connection for cooling water valve (CW)
c Connection for valve unit or vacuum valve (VALVE)
d Power supply connection for stand alone mode

30 VDC

e Mains switch On/Off
f USB for data output/firmware update

g Fixation for support rod
h RS 485 connection to V-700 / V-710 or R-210 / R-215
i Remote control (RC 81)
j RS 232 connection for Rotavapor (R-200 / R-205 /

R-250)

k Aeration valve with inert gas connection
l Vacuum connection to valve unit/Woulff bottle

4.2 Controller operation modes

When using a Rotavapor R-200 / R-205 or R-210 / R-215 seven different modes are available for the
vacuum controller:

• Manual mode

• Timer mode

• AutoDest mode (V-855 only)

• EasyVac mode (V-855 only)

• Gradient mode (V-855 only)

• Repeat mode (V-855 only)

• LabVac mode
When using a Rotavapor R-220 SE or R-250 four different modes are available for the vacuum

controller:

• Manual mode

• Timer mode

• Gradient mode (V-855 only)

• Repeat mode (V-855 only)

All modes are described in the following.

9

10

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4.2.1 Manual mode

The Manual mode serves to maintain and control a preset pressure. The pressure setpoint can be
adjusted by means of the selection knob when the pump is running or, before operation, via the corre­sponding menu by pressing the menu button P Set.

4.2.2 Timer mode

The Timer mode serves to control the pressure over a predefined time interval. When the time interval
is over, the process stops.

4.2.3 AutoDest mode (V-855 only)

The AutoDest mode serves to carry out an automatic distillation based on the temperature differences
within the condenser. Thanks to the AutoDest probe mixtures can be distilled gently and automatically.
The redistillation will also be considered.

4.2.4 EasyVac mode (V-855 only)

The EasyVac mode serves to carry out an automatic distillation based on the vapor pressure of the
solvent. The process is started at the push of a button. The start point of the distillation will be identi­fied automatically. Then the pressure is adapted according to the vapor pressure curve and the end
point of the distillation is determined. Based on sophisticated algorithms the process is executed in a
robust, gentle way. This mode is suited for distilling single solvents.

NOTE

The EasyVac mode only works with a speed controlled Vacuum Pump V-700 / V-710.

1

2

p

t

a Detection start of distillation b Detection end of distillation

4.2.5 Gradient mode (V-855 only)

The Gradient mode serves to define up to 15 programs with up to 20 steps each. For a description of
how to define programs, see chapter 6.7.3.

4.2.6 Repeat mode (V-855 only)

The Repeat mode serves to reproduce a distillation. The pressure course of the last manual or auto­matic distillation can be saved and reused as setpoint settings to supply optimum process conditions.

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4.2.7 LabVac mode

The LabVac mode serves to control the pump within a laboratory vacuum system.
The pump operation is switched off when the vacuum has reached the lowest possible value and is
switched on again when the pressure increases by a preset value (hysteresis [dP]). The pump opera­tion is also switched on, as soon as a load is present in the vacuum system.
When the menu button CONT. is pressed the pump operates in Continuous mode to obtain a vacuum
as low as possible independent of the connected load.

1

2

p

t

a Pump not running b Pump running

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5 Putting into operation

This chapter describes how the instrument is installed and gives instructions on initial startup.

NOTE:

Inspect the instrument for damages during unpacking. If necessary, prepare a status report immedi­ately to inform the postal company, railway company or transportation company.

Keep the original packaging for future transport.

5.1 Setting up the Rotavapor with the Vacuum Controller V-850 / V-855

5.1.1 Installation

3

2

1

To install the vacuum controller to the Rotavapor,
proceed as follows:

• Screw the holder a for the vacuum controller
to the top of the Rotavapor.

• Slide the guide rail b of the vacuum controller
over the holder.

• Fix the vacuum controller to the holder by
tightening the knurled nut c.

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5.1.2 Cable connections to the Rotavapor

4

1

2

3

a Mains connection (R-210 / R-215)
b Communication vacuum controller/Rotavapor

c Communication vacuum pump/Rotavapor
d Communication vacuum controller/Rotavapor

To connect the vacuum controller to the Rotavapor electrically, proceed as follows:

• Connect the communication d of the vacuum controller to the Rotavapor b.

• Connect the communication c of the vacuum controller to the Vacuum Pump V-700 / V-710.

• Connect the mains supply a of the Rotavapor to the mains.

5.2 Communication of Rotavapor and Vacuum Controller V-850 / V-855

5.2.1 Rotavapors R-200 / R-205 and R-210 / R-215

The Rotavapor and the vacuum controller are connected, so that the starting and stopping of the rota­tion and the raising and lowering of the evaporating flask is carried out via the vacuum controller.
For this, all options under Menu > Options >Control Rotavapor have to be set to “ON”.

• the distillation is started via the vacuum controller, the evaporating flask moves into the heating
bath and the rotation is started.

• the distillation is stopped via the vacuum controller, the rotation is stopped and the evaporating
flask is raised from the bath.

5.2.2 Rotavapors R-220 SE and R-220 and R-250 with firmware 2.06 or higher

The Rotavapor and the vacuum controller are connected, so that the starting and stopping of the
rotation and the heating as well as the raising and lowering of the heating bath is carried out via the
vacuum controller.

For this, all options under Menu > Options >Control Rotavapor have to be set to “ON”.

• the distillation is started via the vacuum controller, the heating bath moves to the evaporating flask,
the heating and the rotation will start.

• the distillation is stopped via the vacuum controller, the rotation is stopped and heating bath is
lowered, the heating and rotation will stop.

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5.3 Installing the AutoDest probe

1

To install the AutoDest probe proceed as follows:

• Insert the AutoDest probe into the opening at the top of the condenser.

• Push the probe down between the inner condenser coil and the vacuum tube in the center of the
condenser.

• Position the probe as shown in Fig. 5.3. Make sure that the prope tip position corresponds to posi­tion a in Fig. 5.3.

• Tightened screw cap at the top of the condenser.

• Plug the cable of the AutoDest probe into the AS/SB socket of the controller (position b in the
figure above).

NOTE:
Calibrate the AutoDest probe, see also chapter 6.7.5.

2

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5.4 Initial software settings

When you switch on the vacuum controller for the first time, a wizard will guide you through the initial
settings to be carried out.

To change the default settings within the screens, use the selection knob at the vacuum controller.
Turning it to the left moves you further down within the context menus, turning it to the right moves
you up again. By pressing OK the currently highlighted setting will be accepted.

Configure your vacuum controller by following
the instructions on the screen.
Press Next to continue.

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In the Options controller you can define several
system settings by turning the selection knob
and confirming with OK:

• Language: Select the screen language from
the available languages English, German,
French, Italian, Spanish, and Japanese.

NOTE

When you select Japanese as language by
mistake, you will see that the word “language”
will remain in English. Just move the high­lighted bar upward again with the Move up
button and change the language again by
means of the selection knob.

• Aeration On/Off: When the aeration is
switched on, the system is automatically
aerated when the STOP button is pressed
or the distillation is stopped by an automatic
function, otherwise the system remains
evacuated and the STOP button has to be
pressed a second time for aeration.

• Signal key On/Off: When the signal key is
switched on a confirmation sound is audible
when a function key is pressed.

• Signal end On/Off: When the signal end is
switched on a confirmation sound is audible
when an automatic distillation or a program
is finished.

• Contrast: Select a screen contrast between
0 and 100 %.

• Unit: Select the unit in which the pressure is
displayed from the available units (mbar, Torr
and hPa).

• Press Next to continue.

On the System configuration screen you can
specify the following:

• Basic instrument: The basic instrument

you are working with (R-200 / R-215, R-210
/ R-215, R-220, R-250, P-6 / P-12 or
others).

• Water valve: Whether a water valve is

connected to your system or not.

• Altitude: At which altitude above sea level

the instrument is operated.

• Max. pressure: The maximum instrument

pressure. When it is reached, the aeration
valve is opened.

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On the Remote control Rotavapor screen you
can define the following remote control para­meters:

• Rotation start On/Off: Automatic rotation
start of flask when controller is started

• Rotation stop On/Off: Automatic rotation
stop of flask when controller is stopped

• Immerse flask On/Off: Automatic lowering
of the flask into the heating bath when
controller is started

• Emerge flask On/Off: Automatic raising
of the flask from the heating bath when
controller is stopped

The following parameters are only available for
the Rotavapors R-220 SE and R-250:

• Heating start On/Off: Automatic start-up
of the heating bath when the START button
is pressed

• Heating stop On/Off: Automatic switch
off of the heating bath when the process is
finished or the STOP button is pressed

If an AutoDest probe is installed, you can define
several parameters for auto distillation on the
AutoDest parameter screen:

• Low boiling det.: Warm-up time for evapo-
rating flask. The default value is 20 s. For
sample volumes of more than 2 l, we recom­mend to increase the value by about 10 s.

• Aspiration time: Time interval after which
a new pressure setpoint has to be reached
(the pressure setpoints are predefined within
the system). This value must be adapted
according to the pump performance. The
default value is 5 s. We recommend to
increase the value for pumps with a low aspi­ration capacity, i.e. water jet pumps, or when
the error message “Because of a leak the
distillation process was cancelled” appears.

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6 Operation

This chapter explains the operating elements and possible operating modes. It gives instructions on
how to operate the instrument properly and safely.

6.1 Menu structure of the Vacuum Controller V-850 / V-855 software

Menu

Cont.

P Set

Solvent library

Program

Solvent library

Options

Extra

Mode

Manual

Gradient

EasyVac

AutoDest

Timer

Repeat

LabVac

Options controller

Wizard

Control Rotavapor

Configuration

AutoDest

System

configuration

Save

Delete

Open

Calibr. AutoDest

probe

Calibr. Pressure

sensor

Edit solvent

Calibr. pressure

offset

Recover

calibration

Calibr. pressure

complete

Calibr. pressure

simple

Program

Show

For service only

dP

V-850 and V855 V855 only

Additional functional
buttons according to

selected mode

Manual mode

Recirculating

Chiller

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6.2 Vacuum Controller V-850 / V-855 main screen in Manual mode

When you switch on the vacuum controller, first the instrument type and the software version are
displayed, then the main screen appears. In the following the main screen of the Manual mode is
described:

Without chiller:

1

2

3 4

6

7

13

11

10

9

5

12

8

a Functional button for Continuous mode
b Functional button to open the main menu
c Functional button to define the pressure set point
d Functional button to open the solvent library
e Symbol for the connected instrument
f Symbol for connected temperature sensor
g Symbol for connected cooling water valve
h Selected pressure unit
i Digital display of actual system pressure
j Symbol for Vacuum Pump V-700 / V-710, when

no such pump is connected, the valve symbol is
displayed .

k Analog display of actual system pressure (thin

needle indicating the set and thick needle the
acutal value)

l Set system pressure
m Indication of selected mode

With chiller and without manometer:

1
2

3

a Temperature set at the chiller (only visible if “No” is

selected for Show Manometer in the Recirculating
chiller menu)

b Actual chiller temerature (only visible if “No” is

selected for Show Manometer in the Recirculating
chiller menu)

c Symbol for the Chiller

NOTE:

The symbols in the main screen change their appearance during operation, i.e. when the corre­sponding components are active their symbols are displayed in white on a black square.

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6.3 Selecting the distillation conditions

To achieve optimal distillation conditions, the distillation energy supplied by the heating bath must be
dissipated by the condenser.

To ensure this, operate the instrument according to the following rule of thumb:

Cooling water: max. 20 °C Vapor: 40 °C Bath: 60 °C

How are these conditions achieved?

• Set the bath temperature to 60 °C.

• Set the cooling water temperature not higher than 20 °C.

• Allow cooling water to flow through the condenser at approximately 40–50 l/h.

• Define the operating vacuum in such a way, that the boiling point of the solvent is 40 °C. The corre­sponding pressure can be seen from the Solvent Table in chapter 3.

Advantages associated with bath temperatures of 60 °C:

• The evaporating flask can be replaced without risk of burns.

• The evaporation rate of the water from the heating bath is low (low energy loss).

• The heating bath energy is used at a good degree of efficiency.

This rule can also be applied to lower bath temperatures, e.g.:
Cooling media: 0 °C Vapor: 20 °C Bath: 40 °C

Δ T2 (min. 20 °C)

Δ T1 (min. 20 °C)

NOTE

For P-6 / P-12 Multivapor the rule of thumb changes to

Cooling media: 10 °C Vapor: 30 °C Heating plate: 55 °C

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6.4 Starting a distillation

6.4.1 Quick start of manual distillation

To start a distillation, proceed as follows:

• Switch on the vacuum controller using the on/off switch on the right hand-side.

• If the instrument is not in the Manual mode, change to this mode.

• Press the menu button. When you are working with a Vacuum Pump V-700 / V-710, the following
screen appears:

When you are not working with a Vacuum Pump V-700 / V-710, the following screen appears:

The hysteresis is needed for a precise pres­sure regulation by means of the vacuum control
valve.

With a connected F-Series chiller, you can also
change the cooling medium temperature in this
menu.

Use the selection knob of the vacuum controller to define the pressure setpoint and the hysteresis, if
applicable, for your evaporation process. Turn the knob to the right to increase the value or to the left
to decrease the value and confirm your setting(s) with OK.

NOTE

To find out, which settings are appropriate for your solvent, consult the solvent library, see chapter

6.4.2.

When you press ESC, the screen changes to the original setting, i.e. to the previous setpoint.

• Press the START button to start the distillation process or to return to the main screen.

NOTICE

Risk of damage caused by heating transfer mediums.

• Do not fill the heating bath to overflow

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• Adjust the system pressure by means of the selection knob on the vacuum controller as needed.

• To stop the process, press the STOP button. The evaporating flask stops rotating and is removed
from the heating bath automatically, if configured accordingly.

NOTE

Depending on whether you have selected Aeration On/Off in the Options controller, the system is
either aerated directly after the STOP button was pressed (Aeration ON) or when the STOP button is
pressed a second time (Aeration OFF).

6.4.2 Advanced settings

To start a distillation, proceed as follows:

• Switch on the vacuum controller using the on/off switch on the right hand-side.

• Press the Library button. The Solvent library screen opens. Some parameters will differ slightly
depending on whether you have connected a chiller or not:

With chiller Without chiller

• To select the desired solvent, use the selection knob of the vacuum controller. Turn the knob to the
left to go down within the alphabetical solvent list or turn it to the right to go up.

• Select the highlighted solvent by pressing OK.

• The proposed heating bath temperature can only be set on the heating bath. You can also change
the proposed heating bath temperature and adapt the setting on the heating bath accordingly.
To change the temperature, use the selection knob on the vacuum controller. Turning it to the
left decreases the bath temperature value, turning it to the right increases it. By pressing OK the
currently highlighted setting is saved and the value for pressure is adapted accordingly.

• The temperature for the cooling medium is set by using the selection knob on the vacuum
controller. Turning it to the left decreases the temperature value, turning it to the right increases it.

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By pressing OK the currently highlighted setting is saved and automatically set on the chiller as well.

NOTE

The values indicated for Boiling point and Cooling H2O max only serve for information purposes.

• Press Accept to confirm your settings and get back to the main screen.

NOTE

Depending on whether you have selected Aeration On/Off in the Options controller, the system is
either aerated directly after the STOP button was pressed (Aeration ON) or when the STOP button is
pressed a second time (Aeration OFF).

NOTE

Press the Info button to get some useful tips concerning recommended settings and update possi­bilities of your solvent library.

6.4.3 Working with a connected F-series chiller

To start a distillation when a chiller is connected to your system, proceed as follows:

• Set the desired cooling temperature (and additional parameters if needed) in the menu Recircu­lating chiller (see section 6.9).

• Set the desired pressure on the vacuum controller or choose the solvent in the solvent library.

• Press the START button on the controller, so that the chiller starts cooling, and wait until the chiller
has reached the set value.

• Press the START button on the controller again to start the distillation.

• After the distillation has finished, press the STOP button on the controller to stop the process.

• Press the STOP button on the controller again to start the 5 minute countdown timer after which it
will enter the Stand-by mode or press STOP again to immediately enter the Stand-by mode.

NOTE

If you start the distillation before the chiller has reached the set value, a warning message is
displayed (see below). Press Cont. or press the START button a second time to ignore the message
and to start the distillation regardless of the current temperature, or press Abort to let the chiller
reach the set value first.

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6.5 Vacuum Controller V-850 / V-855 main screen in Gradient mode

When you switch on the vacuum controller, first the instrument type and the software version are
displayed, then the main screen appears. In the following the main screen of the Gradient mode (only
V-855) is described:

1

2

3 4

6

7

13

11
10

9

5

12

8

15

14

a Functional button for Continuous mode
b Functional button to open the main menu
c Functional button to show the pressure course

curve

d Functional button to define a new program or edit

an existing one

e Name of program currently running
f Symbol for the connected instrument
g Symbol for connected temperature sensor
h Selected pressure unit
i Digital display of actual system pressure
j Symbol for connected cooling water valve
k Symbol for Vacuum Pump V-700 / V-710, when

no such pump is connected, the valve symbol is
diplayed .

l Analog display of actual system pressure (thin

needle indicating the set and thick needle the
acutal value)

m Number of program step currently running and

time current step is already active

n Set system pressure
o Indication of selected mode

NOTE

The display of the main screen in Gradient mode when a chiller is connected is similar to the example
in section 6.2.

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6.6 General information on buttons

6.6.1 Control buttons

The following control buttons are available in the software for navigation and input confirmation:

Get more information about the solvent library and about the settings required for a selected solvent

Get back to the previous screen

Get on to the next screen

Confirm and save a setting and get back to the main screen

Leave the current screen and get back to the main screen

Accept the settings and get back to the main screen

Get back to the start screen without saving possible settings

Backward button to move backward within the submenu structure

Forward button to move forward within the submenu structure

Move up within the entries of a screen

Move down within the entries of a screen

Define the time and pressure for a program in Timer, Gradient and Repeat mode

Confirm a screen message

Deny a screen message

Show gradient curve in Gradient and Repeat mode

Edit a program in the Gradient and Repeat mode

Save a program under the entered name

Confirm the entry of a character when naming a program

Create a new program in the Gradient and Repeat mode

Swich through the steps of a program in Repeat mode

Define the hysteresis in LabVac mode

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6.6.2 Menu buttons

The following menu buttons are available in the software to call up certain menu functions:

Continuous pump operation (100 % full speed to 0 % single stroke mode)

Manual pump operation

Switch to the AutoDest mode

Open the main menu

Set the system pressure

Library button to open the solvent library

Switch Hold mode off

Increase the system pressure or interrupt a pressure drop during the start phase. The instrument is
aerated and changes to the Hold mode when a distillation is running.

Decrease the system pressure during calibration of the pressure sensor.

6.7 Main menu

To open the main menu, on the main screen press the Menu button.
To change the default settings within the screens of the main menu, use the selection knob on the
vacuum controller. Turning it to the left moves you further down within the context menus, turning it to
the right moves you up again. By pressing OK the currently highlighted setting is accepted.

To open the main menu, press the Menu button. The following screen opens:

NOTE

The menu Program is only available on the V-855.

The menu Recirculating chiller is only available when a recirculating F-series chiller is connected to
your instrument.

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6.7.1 Mode

Depending on the controller and the Rotavapor you are working with, several modes are available,
enabling you to work in different environments and use different programs, see chapter 4.2.

6.7.2 Options

The submenu Options contains the same system configuration screens as the Wizard and the Wizard
itself. From the submenu Options you can access the configuration screens Options Controller,
System configuration, Configuration AutoDest, Control Rotavapor individually, while, when entering the
Wizard, you are guided through the configuration screens step by step, see also chapter 5.4.

6.7.3 Program (V-855 only)

The program submenu only contains programs, if you have previously defined and saved programs
yourself. Programs can be defined within the Gradient, the Timer and the Repeat mode. In the
following, the program definition is shown, using the Gradient mode as an example.

Defining a program

To define a program in the Gradient mode, proceed as follows:

• Press Prog. on the main screen. The following screen appears:

• To define a new program, press New. You are now in the edit mode, where you can define the
individual settings and save your changes.

Use the selection knob of the vacuum controller to define the start and end pressure of Step 01 and
its duration. Turn the knob to the right to increase the value or to the left to decrease the value.

• To define a second step, press Step and proceed with the definition as for the step before.

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NOTE

You can define up to 20 steps.

• To save your settings as a program, select Save. The following screen appears:

Use the selection knob on the vacuum controller to move the “cursor” from one character to the other
and press Enter each time you want to take a character over into the field at the top. Press Save to
save the program under the entered name.

Working with programs

When you select the Program submenu, the following screen opens:

You can now open or delete a previously saved program, if available.
In case you are in one of the Modes, where predefined programs can be used, the screen provides an
additional Save option.

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The Save option is especially interesting in the Repeat mode. The last distillation carried out with
the system, e.g. a distillation in Manual mode, is saved in the buffer and can be repeated within
the Repeat mode. To save such a distillation as a program, highlight the Save option and press
the Forward button. You can now enter a name under which you want to save the distillation as a
program.
Use the selection knob on the vacuum controller to move the “cursor” from one character to the other
and press Enter each time you want to take a character over into the field at the top. Press Save to
save the program under the entered name.

6.7.4 Solvent library

The submenu Solvent library contains the same solvent library settings as accessible via the Library
button, see chapter 6.4.2.

6.7.5 Extra

When you select the Extra submenu, the following screen opens:

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Edit solvent

When you select this menu and press the Forward button, the following screen appears:

Here you can define up to 15 new solvents, change and delete a self-defined one and determine
whether the predefined solvents should be shown or hidden in the solvent library.
When you want to define a new solvent or change an existing solvent, press the corresponding
Forward button. The following screen appears:

Use the selection knob of the vacuum controller to define the b-coefficient and the boiling point of the
new or modified solvent. Turn the knob to the right to increase the value or to the left to decrease the
value and confirm your settings both times with OK.

The b-coefficient is used to calculate the desired boiling point Tp at a given pressure p:

T

p

=

T

s

(3.006 – log p) b + 1

where:
Ts = boiling point (°K) at a pressure of 1013 mbar (normal pressure)
Tp = boiling point (°K) at pressure p (mbar)
You can now save the new or modified solvent under a certain name. When you press the Forward
button, the following screen appears:

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Use the selection knob on the vacuum controller to move the “cursor” from one character to the other
and press Enter each time you want to take a character over into the field at the top. Press Save to
save the solvent under the entered name.

To delete a self-defined solvent, in the Edit solvent screen go to Delete solvent, select the desired
solvent from the drop-down list, press OK and confirm with Yes .

To determine whether the predefined solvents should be shown or hidden in the solvent library, go to
Predefined solvents and press the Forward button. The following screen appears:

You can now hide or show individual solvents by going to Hide or Show, selecting the corresponding
solvents from the drop-down list and pressing OK. To hide or show all predefined solvents, go to Hide
all or Show all and confirm by pressing OK.

Calibr. AutoDest probe

By means of this submenu you can calibrate your AutoDest probe, if applicable. For this purpose,
follow the instructions on the screen.

NOTE

During the calibration procedure the system carries out a plausibility check on the measured values
and displays an error message when the confirmed values are implausible.

For a description on how to calibrate the pressure sensor, see the separate section 6.8.

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6.8 Calibrating the pressure sensor

In the Extra menu, select Calibr. pressure sensor. Now press the Forward button, the following
screen appears:

You can now calibrate the pressure sensor:

NOTE

The pressure sensor is precalibrated by the manufacturer before the system is shipped to the
customer. You can adjust this calibration to your working conditions by means of a reference
measuring device.

6.8.1 Offset calibration

An offset calibration has to be carried out when the pressure value indicated by the Controller does
not correspond to the reading on your reference pressure measuring device. The difference between
these values is the offset.

To carry out an offset calibration of the pressure sensor, select Calibr. pressure offset. The following
screen appears:

Use the selection knob on the vacuum controller to define the offset and the reference pressure for the
offset calibration. Turn the knob to the right to increase the value or to the left to decrease the value
and confirm your settings with OK. You will get back to the main screen.

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6.8.2 Simple calibration (without temperature compensation)

NOTE

This calibration should only be carried out by authorized service personnel.

The calibration at room temperature serves to adjust the linearity of the pressure sensor at certain
predetermined pressure levels.
This is a 6 step calibration at room temperature, the pressure sensor is calibrated at atmospheric
pressure, 800, 600, 400, 200, and 10 mbar.

NOTE

During the calibration procedure the system carries out a plausibility check on the measured values
and displays an error message when the confirmed values are implausible.

To carry out the calibration, proceed as follows:

• Connect a reference pressure measuring device to the vacuum system your pump and controller
are part of.

• Select Calibr. pressure simple. The following screen appears:

• Use the selection knob on the vacuum controller to adjust the reference pressure value to the one
indicated on the display of the reference measuring device. Turn the knob to the right to increase
the value or to the left to decrease the value.

• Press OK to confirm the value (OK will only appear once you turn the knob).

• Press Next, use the buttons P↑ and P↓ to increase or decrease the vacuum in the system until the
displayed value (reference device) is within 10 mbar of the set value.

• Repeat steps 1-3 until step 6 etc.

• When the last step is finished, you are asked whether you want to save the calibration.

• Press OK to confirm. The calibration is saved and you get back to the main screen.

6.8.3 Complete calibration with temperature compensation

NOTE

This calibration should only be carried out by authorized service personnel.

The manual calibration serves to adjust the linearity of the pressure sensor at certain predetermined
pressure levels.
During the manual calibration, the pressure sensor is calibrated at atmospheric pressure, 800, 600,
400, 200, 10 mbar in 6 steps at room temperature and at a temperature of about 55 °C.

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!

CAUTION

Risk of minor or moderate injuries by hot surfaces when the instrument comes out of the labora­tory oven.

• Always be aware of the burn hazard.

• Always wear personal protective equipment such as protective gloves when getting the instru­ment out of the laboratory oven.

NOTE

During the calibration procedure the system carries out a plausibility check on the measured values
and displays an error message when the confirmed values are implausible.

To carry out the calibration, proceed as follows:

• Connect a reference pressure measuring device to the vacuum system your pump and controller
are part of.

• Select Calibr. pressure complete. The following screen appears:

• Use the selection knob on the vacuum controller to adjust the reference pressure value to the one
indicated on the display of the reference measuring device. Turn the knob to the right to increase
the value or to the left to decrease the value.

• Press OK to confirm the value (OK will only appear once you turn the knob).

• Press Next, use the buttons P↑ and P↓ to increase or decrease the vacuum in the system until the
displayed value (reference device) is within 10 mbar of the set value.

• Repeat steps 1-3 until step 6 etc.

• When the calibration at room temperature is finished, put the instrument into the laboratory oven
and heat it up to 55 °C (this will take approx. 1.5 h).

• Repeat the calibration steps described above.

• When the last step is finished, you are asked whether you want to save the calibration.

• Press OK to confirm. The calibration is saved and you get back to the main screen.

Recover calibration:

To delete the current calibration and restore the factory calibration, i.e. the delivery condition, select
Recover calibration. You are asked whether you want to recover the calibration or not. Press Yes to
confirm or No to maintain the current calibration.

NOTE

Consider that “Recover calibration” deletes any existing calibration carried out by the customer.

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6.9 Recirculating chiller

This menu is only available when a recirculating chiller is connected to your instrument. To configure it,
go to Recirculating chiller and press the Forward button. The following screen appears:

On the Recirculating chiller screen you can
specify the following:

• Actual value: Actual chiller temperature (not
editable)

• Set value: Target value of the chiller. It can
either be set here via the selection knob or
in the solvent library (see also section 6.4.2)
and is then automatically set on the chiller.

• Warning: When the actual chiller tempera­ture exceeds or falls below the set value by
the temperature value set for the warning
limit, an error message is displayed and a
beep sound is audible.

• Warning limit: Temperature difference from
the Set value causing a warning.

• Temperat. calculation: When “No” is
selected the Set value here, respectively the
Cooling medium value in the solvent library
can be set manually. When “Yes” is selected
the controller calculates the optimal cooling
temperature automatically according to the
selected solvent in the solvent library.

• Show Manometer: Select here whether
the manometer should be shown in the main
screen or not. If No is selected, the Actual
and Set value of the chiller are displayed on
the main screen instead, see also section

6.2.

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6.10 Tips and tricks for a distillation

6.10.1 What to do when the solvent starts foaming?

• Press the button P↑. The current system pressure is frozen and the aeration valve is opened. The
system is aerated and switches into the Hold mode, i.e. the H Off button becomes active.

• When the foam is gone or has sufficiently degenerated, press the H Off button to continue with the
distillation process.

• In case the solvent starts foaming again, repeat the measures described above.

6.10.2 How to find out the distillation conditions for a solvent?

The solvent library integrated into the vacuum controller software provides you with information on a
number of different solvents.

To use the library, proceed as follows:

• Press the Library button. The solvent library screen opens.

• Select the solvent you are operating with by means of the selection knob on the vacuum controller
and press OK.

• Now define the bath temperature you want to operate with by means of the selection knob on the
vacuum controller and press Accept. The setting is saved and the value for pressure is adapted
accordingly.

NOTE

The values indicated for boiling point and cooling H2O max only serve for information purposes.

6.10.3 How to start a distillation without determining a pressure setpoint?

Preconditions:

• In the submenu Remote control Evaporator, the options Rotation start and Immerse flask
have to be set to Off.

For a distillation quick start, proceed as follows:

• On the main screen press the Cont. button. The distillation starts.

• Now press the Man. button to enter the Manual mode.

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7 Maintenance

This chapter gives instructions on all maintenance work to be performed in order to keep the instru­ment in good working condition. In addition to this, adjustment jobs the operator can carry out by
himself/herself are explained.

!

CAUTION

Risk of minor or moderate burns by electric current.

• Switch off the instrument and disconnect the power cord.

• Do not spill liquids over the device

7.1 Housing

Immediate maintenance
The housing is made of plastic. Remove any acid drops immediately from the housing with a moist

cloth.

General maintenance
Check the housing for defects (controls, plugs) and clean it regularly with a moist cloth.

NOTICE

Risk of instrument damage by liquids and detergents.

• Do not spill liquids over the instrument or parts of it

• Wipe off any liquids instantly

• For the housing, use ethanol or soapy water as detergent only

7.2 Functional test

Test the following functions in regular intervals:

• Switch on the instrument. The display shows the basic state of the last distillation. When the
connected instrument is aerated, the current atmospheric pressure is displayed.

• Press RUN. The aeration valve turns on, making an audible sound, the pump starts, the vacuum
valve opens, and the display indicates the RUN mode.

• Press STOP. The aeration valve switches, making an audible sound, the pump stops, the vacuum
valve closes and the display changes to the basic mode.

NOTE

When Aeration Off is configured, the valve only switches when you press the STOP button a second
time.

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8 Troubleshooting

This chapter helps to resume operation after a minor problem has occurred with the instrument. It lists
possible occurrences, their probable cause and suggests how to remedy the problem.
The troubleshooting table below lists possible malfunctions and errors of the instrument. The operator
is enabled to correct some of those problems or errors by him/herself. For this, appropriate corrective
measures are listed in the column “Corrective measure”.
The elimination of more complicated malfunctions or errors is usually performed by a BUCHI technical
engineer who has access to the official service manuals. In this case, please refer to your local BUCHI
customer service agent.

8.1 Malfunctions and their remedy

Malfunction and their remedy

Malfunction Possible cause Corrective measure

No display Instrument has no current Switch instrument on, check mains

connectins

Frequent switching of valve or pump System is leaky

Hysteresis is too small

Control all sealing points (tubes and
their connections)
Choose a larger hysteresis (if
the end-vacuum is higher than
700 mbar, set the instrument to
automatic hysteresis

Valve does not switch Valve does not close Valve coil is dirty

Valve cable is not plugged in
Valve is not adjusted, contact the
BUCHI customer service for assis­tance

No vacuum Tubing or cabling incorrect Correct the tubing or cabling by

referring to the corresponding
chapters

Vacuum is not reached Back evaporation at the Rotavapor

Water pressure to water jet pump is
too low

Empty the receiving flask and
completely open the water tap
Dry the pump diaphragm

Auto distillation has “abated” Manually decrease the pressure until the distillation starts again, then return

to the automatic function, if desired

EasyVac distillation “abated” Manually decrease the pressure until the distillation starts. The distillation

stops automatically

Distillation ended although not dried
out completely

- Back evaporation from the receiving flask is too strong (especially for
solvent mixtures), drain receiving flask and restart the distillation

- Malfunction in distillation process is not exactly defined (e.g., sudden
cooling, heat flow is too low, etc. Decrease the pressure manually until the
distillation starts again, then return to the automatic function, if desired

Too much remaining liquid after auto
distillation

Manually decrease the product pressure to distill the remaining liquid

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Error messages

Error message Remedy

The pressure sensor is not working Contact the BUCHI customer service.

The pressure sensor is not calibrated Calibrate the pressure sensor as described in chapter

6.8. We recommend to have the simple and the complete
calibration carried out by the BUCHI customer service.

Data transfer error on the RS-485 Check whether the RS-485 cable is at the right place

and that only one vacuum controller is connected to it.

The AutoDest probe is not connected Install the AutoDest probe as described in chapter 5.3.

Because of a leak the distillation process was cancelled Retighten all connections and check all seals.

Excess pressure in the system Let the pump run continuously until it has reduced the

system pressure.

There was a read/write memory error Contact the BUCHI customer service.

8.2 Customer service

Only authorised service personnel are allowed to perform repair work on the instrument. These
persons have a comprehensive technical training and knowledge of possible dangers which might
arise from the instrument.
Addresses of official BUCHI customer service offices are given on the BUCHI website under:
www.buchi.com. If malfunctions occur on your instrument or you have technical questions or applica­tion problems, contact one of these offices.

The customer service offers the following:

• Spare part delivery

• Repairs

• Technical advice

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9 Shutdown, storage, transport and disposal

This chapter instructs how to shut down the instrument, how to pack it for storage or transport, and
specifies the storage and shipping conditions.

9.1 Storage and transport

Store and transport the instrument in its original packaging.

9.2 Disposal

To dispose of the instrument in an environmentally friendly manner, a list of materials is given in chapter

3. This helps to ensure that the components are separated and recycled correctly.
Please follow valid regional and local laws concerning disposal.

NOTE

When you send the instrument back to the manufacturer for repair work, please copy the health and
safety clearance form on the following page, fill it in and enclose it in the instrument package.

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Health and Safety Clearance

Health and Safety Clearance_20081110.doc_20081110 Version 1.0 Page 1/1

Declaration concerning safety, potential hazards and safe disposal of waste.

For the safety and health of our staff, laws and regulations regarding the handling of
dangerous goods, occupational health and safety regulations, safety at work laws and
regulations regarding safe disposal of waste, e.g. chemical waste, chemical residue or
solvent, require that this form must be duly completed and signed when equipment or
defective parts were delivered to our premises.

Instruments or parts will not be accepted if this declaration is not present.

Equipment

Model: Part/Instrument no.:

1.A Declaration for non dangerous goods

We assure that the returned equipment

has not been used in the laboratory and is new
was not in contact with toxic, corrosive, biologically active, explosive, radioactive or

other dangerous matters.

is free of contamination. The solvents or residues of pumped media have been

drained.

1.B Declaration for dangerous goods

List of dangerous substances in contact with the equipment:

Chemical, substance Danger classification

We assure for the returned equipment that

all substances, toxic, corrosive, biologically active, explosive, radioactive or

dangerous in any way which have pumped or been in contact with the equipment
are listed above.

the equipment has been cleaned, decontaminated, sterilized inside and outside and

all inlet and outlet ports of the equipment have been sealed.

2. Final Declaration

We hereby declare that

- we know all about the substances which have been in contact with the equipment
and all questions have been answered correctly

- we have taken all measures to prevent any potential risks with the delivered
equipment.

Company name or stamp:

Place, date:

Name (print), job title (print):

Signature:

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10 Spare parts

This chapter lists spare parts, accessories, and options including their ordering information.
Order the spare parts from BUCHI. Always state the product designation and the part number when
ordering spare parts.
Use only genuine BUCHI consumables and genuine spare parts for maintenance and repair to assure
good system performance and reliability. Any modifications to the spare parts used are only allowed
with the prior written permission of the manufacturer.

Spare parts

Product Order number

Set with 5 sieves and 10 seals (for 11606) 15860

Hose nipple GL14 bent, complete, set of 4 37287

Gasket for Woulff bottle 47165

Gasket for probe 40744

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11 Declarations and requirements

11.1 FCC requirements (for USA and Canada)

English:
This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to both Part 15 of the FCC Rules and the radio interference regulations of the Canadian
Department of Communications. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.

Français:
Cet appareil a été testé et s’est avéré conforme aux limites prévues pour les appareils numériques

de classe A et à la partie 15 des réglementations FCC ainsi qu’à la réglementation des interférences
radio du Canadian Department of Communications. Ces limites sont destinées à fournir une protec­tion adéquate contre les interférences néfastes lorsque l’appareil est utilisé dans un environnement
commercial.
Cet appareil génère, utilise et peut irradier une énergie à fréquence radioélectrique, il est en outre
susceptible d’engendrer des interférences avec les communications radio, s’il n’est pas installé et
utilisé conformément aux instructions du mode d’emploi. L’utilisation de cet appareil dans les zones
résidentielles peut causer des interférences néfastes, auquel cas l’exploitant sera amené à prendre les
dispositions utiles pour palier aux interférences à ses propres frais.

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11.2 Declaration of conformity

Quality in your hands

BUCHI Affiliates:

We are represented by more than 100 distribution partners worldwide.
Find your local representative at: www.buchi.com

BUCHI Support Centers:

Europe

Switzerland/Austria

BÜCHI Labortechnik AG

CH – 9230 Flawil
T [phone]
F [phone]
[e-mail]
www.buchi.com

Benelux

BÜCHI Labortechnik GmbH

Branch Office Benelux
NL – 3342 GT Hendrik-Ido-Ambacht
T [phone]
F [phone]
[e-mail]
www.buchi.be

France

BUCHI Sarl

FR – 94656 Rungis Cedex
T [phone]
F [phone]
[e-mail]
www.buchi.fr

Germany

BÜCHI Labortechnik GmbH

DE – 45127 Essen
T [phone] (Toll Free)
T [phone]
F [phone]
[e-mail]
www.buechigmbh.de

Italy

BUCHI Italia s.r.l.

IT – 20010 Cornaredo (MI)
T [phone]
F [phone]
[e-mail]
www.buchi.it

Russia

BUCHI Russia/CIS

Russia 127287 Moscow
T [phone]
F [phone]
[e-mail]
www.buchi.ru

United Kingdom

BUCHI UK Ltd.

GB – Oldham OL9 9QL
T [phone]
F [phone]
[e-mail]
www.buchi.co.uk

Germany

BÜCHI NIR-Online

DE – 69190 Walldor f
T [phone]
F [phone]
[e-mail]
www.nir-online.de

China

BUCHI China

CN – 200052 Shanghai
T [phone]
F [phone]
[e-mail]
www.buchi.com.cn

India

BUCHI India Private Ltd.

IN – Mumbai 400 055
T [phone]
F [phone]
[e-mail]
www.buchi.in

Indonesia

PT. BUCHI Indonesia

ID – Tangerang 15321
T [phone]
F [phone]
[e-mail]
www.buchi.co.id

Japan

Nihon BUCHI K.K.

JP – Tokyo 110-0008
T [phone]
F [phone]
[e-mail]
www.nihon-buchi.jp

Korea

BUCHI Korea Inc.

KR – Seoul 153-782
T [phone]
F [phone]
[e-mail]
www.buchi.kr

Malaysia

BUCHI Malaysia Sdn. Bhd.

MY – 47301 Petaling Jaya,
Selangor
T [phone]
F [phone]
[e-mail]
www.buchi.com

Singapore

BUCHI Singapore Pte. Ltd.

SG – Singapore 609919
T [phone]
F [phone]
[e-mail]
www.buchi.com

Thailand

BUCHI (Thailand) Ltd.

TH – Bangkok 10600
T [phone]
F [phone]
[e-mail]
www.buchi.co.th

Asia

America

Brazil

BUCHI Brasil

BR – Valinhos SP 13271-200
T [phone]
F [phone]
[e-mail]
www.buchi.com

USA/Canada

BUCHI Corporation

US – New Castle, DE 19720
T [phone] (Toll Free)
T [phone]
F [phone]
[e-mail]
www.mybuchi.com

South East Asia

BUCHI (Thailand) Ltd.

TH-Bangkok 10600
T [phone]
F [phone]
[e-mail]
www.buchi.com

Middle East

BÜCHI Labortechnik AG

UAE – Dubai
T [phone]
F [phone]
[e-mail]
www.buchi.com

Latin America

BUCHI Latinoamérica Ltda.

BR – Valinhos SP 13271-200
T [phone]
F [phone]
[e-mail]
www.buchi.com