LABOROTA 20 Control Instruction Manual

LABOROTA 20 Control Instruction Manual
LABOROTA 20 control
Betriebsanleitung
Instruction Manual
Mode d’Emploi
Instrucciones
de Empleo
Istruzioni per l’uso
BEDIENFRONT / FRONT PANEL
PANNEAU FRONTAL DE COMMANDE / FRONTAL DE MANDO
PANNELLO FRONTALE DI COMANDO
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Thank you for buying a Heidolph Instruments product. This unit has been designed, made and
inspected in compliance with DIN EN ISO 61010 for long-term and flawless operation.
SUMMARY
BEDIENFRONT / FRONT PANEL ......................................................................................2
SUMMARY ........................................................................................................................56
PARTS AND ACCESSORIES SUPPLIED ........................................................................59
GENERAL .........................................................................................................................60
SAFETY INFORMATION ..................................................................................................61
LABOROTA 20 CONTROL, SPECIFICATIONS...............................................................62
DISTILLATION SETTING..................................................................................................63
1.
General ..................................................................................................................63
2.
Select vacuum control mode..................................................................................63
3.
Solvent data ...........................................................................................................64
LABORATORY SET-UP ...................................................................................................67
SET-UP..............................................................................................................................67
4.
Set-up ....................................................................................................................67
5.
Install vapor tube and PTFE-seal...........................................................................68
6.
Install condensers and expansion vessel...............................................................69
7.
Install collecting flask in cassette ...........................................................................70
8.
Install inlet pipe with valve and screwed cap .........................................................71
GLASS-SET -R (CONTROL) 15-300-006-21 ...................................................................72
GLASS-SET -RC (CONTROL) 15-300-006-22 .................................................................73
GLASS-SET -A (CONTROL) 15-300-006-23 ....................................................................74
GLASS-SET -AC (CONTROL) 15-300-006-24 .................................................................75
GLASS-SET - A2 (CONTROL) 15-300-006-25 .................................................................76
GLASS-SET -A2C (CONTROL) 15-300-006-26 ...............................................................77
WORKING WITH THE LABOROTA 20 CONTROL ..........................................................78
CONTROL PANEL ............................................................................................................78
9.
Master switch / EMERGENCY-CUT-OUT..............................................................78
10. Heating bath lift ......................................................................................................79
11. Speed setting .........................................................................................................79
12. Heater ....................................................................................................................80
13. Select vacuum control mode..................................................................................81
14. p const vacuum control mode ................................................................................81
15. T auto vacuum control mode..................................................................................82
16. Calibrate Vacuum pressure sensor........................................................................83
17. Auto Start Stop.......................................................................................................84
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18.
19.
20.
21.
Timer......................................................................................................................85
Safety cut-out in an overpressure situation............................................................85
Safety cut-off in case of a defect in the vacuum system ........................................87
Safety functions .....................................................................................................90
TIMER AND RAMP-FUNCTION........................................................................................90
22. Set ramp values .....................................................................................................91
23. Display ramp values...............................................................................................95
24. Edit ramp values ....................................................................................................95
25. Start ramp function.................................................................................................95
26. Discontinue ramp function .....................................................................................95
27. Delete ramp ...........................................................................................................95
INTERFACE ......................................................................................................................96
28. Connect interface...................................................................................................96
29. Interface parameters..............................................................................................96
30. RS 232 interface ....................................................................................................96
31. RS 232 interface commands..................................................................................96
FUNCTIONS AND HANDLING .........................................................................................97
32. Protective enclosure ..............................................................................................97
33. Drive lock ...............................................................................................................98
34. Tightening of Evaporator Flask .............................................................................98
35. Flask supports........................................................................................................99
36. Automatic water refill (water bath model only) .....................................................100
37. Vacuum and water distribution.............................................................................100
38. Pt100 temperature sensor, chiller ........................................................................101
HEATING BATH FUNCTION AND HANDLING..............................................................102
39. Fill heating bath (water bath only) ........................................................................102
40. Drain heating bath (water bath only) ....................................................................102
41. Condensate drain.................................................................................................102
42. Heating bath over temperature protection............................................................102
OPTIONS.........................................................................................................................103
43. Vacuum pressure sensor/vacuum valve ..............................................................103
44. Temperature sensor for vapor..............................................................................103
45. Temperature sensor for T auto vacuum mode.....................................................103
CLEANING & SERVICING..............................................................................................104
UNINSTALL, FORWARD & STORE ...............................................................................104
DISPOSAL ......................................................................................................................104
TROUBLESHOOTING ....................................................................................................105
WARRANTY, LIABILITY & COPYRIGHT .......................................................................106
QUESTIONS / REPAIR WORK.......................................................................................106
CE-DECLARATION OF CONFORMITY..........................................................................107
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Important information
Advise about power cord / mains supply
Caution: mandatory action
Caution: fire- and explosion hazard
Advise about maintenance / repair
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PARTS AND ACCESSORIES SUPPLIED
Items contained in your carton (s)
Your LABOROTA 20 carton (s) contain the parts and accessories as listed below. Before disposing
of the carton, check the contents for all items on the below parts list.
We recommend to keep packing material for future use.
Item
P/N
qty.
LABOROTA 20 control
for more details
refer to page
1
glass set-R (control)
15-300-006-21
1
page 72
or glass set-RC (control)
15-300-006-22
1
page 73
or glass set-A (control)
15-300-006-23
1
page 74
or glass set-AC (control)
15-300-006-24
1
page 75
or glass set-A2 (control)
15-300-006-25
1
page 76
or glass set-A2C (control)
15-300-006-26
1
page 77
Large coupling
11-300-003-71
1
page 68, (1)
Large split ring
23-30-01-02-31
1
page 68, (13)
PTFE O-Ring
23-30-01-01-11
1
page 68, (5)
PTFE-adapter
23-30-01-02-29-1
1
page 68, (4)
PTFE-seal
23-30-01-01-51-0
1
page 68, (6)
Backing ring
23-30-01-02-28
1
page 68, (7)
Small split ring
23-30-01-02-27
1
page 68, (11)
Small coupling
11-300-003-18
1
page 68, (2)
Transportation rod
22-30-01-03-17
2
page 67
Cap
11-300-003-28
3
page 67, (5)
Instruction Manual
01-005-004-01
1
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Accessories (optional)
Item
P/N
10 l evaporator flask
15-300-003-16
20 l powder flask
15-300-003-19
10 l powder flask
15-300-003-18
Vacuum pressure sensor (in the scope of delivery)
591-21000-00
Vacuum valve (in the scope of delivery)
591-20000-00
Temperature sensor
(for both, boiling temperature and T auto; order 2 ea. when
using both options)
14-014-003-06-2
Base cart for LABOROTA 20 control
591-23000-00-1
GENERAL
Unpack your LR20 carefully.
Inspect for damage and report such damage or missing parts to your supplier right away.
Read your Instruction Manual carefully. Take time to save time while using your
LABOROTA 20. Make sure that every user has read and understood the Instruction
Manual.
Please keep the Instruction Manual in a place easily accessible to every user.
IF ALL ELSE FAILS, READ THESE INSTRUCTIONS !
For safety reasons, connect your LABOROTA 20 control with a grounded outlet only. (also
refer to “Lab Installation”)
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SAFETY INFORMATION
Please comply with all safety and accident-prevention regulations, as in force for
laboratory work !
Use extra care when working with rotary evaporators.
Use adequate eye protection and protective garments.
Use extra care when working with flammable substances; refer to safety data
sheets.
When connecting your unit with your local power supply, please make sure your
unit is designed for your local supply voltage; go by data plate on the unit.
Turn power switch OFF whenever the unit is not used, or before disconnecting the
plug.
Repair work is limited to technicians approved by Heidolph Instruments.
Use extra care when working in the vicinity of flammable and explosive substances.
Motors are of non-sparking type, the unit itself however is not explosion-protected.
Caution ! Severe burns may occur when running the heating bath over 50°C. Do
not touch hot metal rim of bath, evaporator flask or heating bath fluid.
Never run heating bath dry.
Your LABOROTA 20 needs a solid level stand.
Never attempt to work with damaged or worn-out PTFE gasket (6). Not reaching
vacuum pressure wanted may damage your rotary evaporator. Inspect PTFE gasket
(6) in regular intervals and replace on condition.
Avoid overpressure in the glassware kit while distilling low-boiling solvents. Aerate
glassware kit as required. Overpressure in the glassware kit may damage the
evaporator or even blow-up parts of the glassware kit.
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LABOROTA 20 CONTROL, SPECIFICATIONS
Supply voltage
Power rating
Rotation speed (electronic control)
Heating bath
Level control, water bath
Temperature range, water bath
Temperature range, oil bath
Heating power
Bath lift
Over temperature & dry
running protection
Boil temp. sensor: display range
Evaporator flask
Collecting flask
Aeration valve
Timer operation
Setting range, vacuum pressure
3 x 400 V 50 Hz or 3 x 230 V 60 Hz
4500 watts
6 - 160 1/min
400 mm dial., stainless steel V2A
float switch plus automatic refill valve
0 - 100 ° C
0 - 180 ° C
4000 watts
motorized
separate safety circuit
0 - 150°C
20 , 10, or 6 liters optional
10 liters, features bottom drain valve
standard
0 – 99:59 h
1 - 1200 mbar (needs optional vacuum pressure
sensor and valve)
2.5 - 5 m3/h (vacuum pump is optional)
Pumping capacity required (vacuum
pump)
Cooling water consumption
Dimensions ( width x depth x height )
150 - 250 l / h (depending on glass set)
970 mm x 620 mm x 1600 mm
(with front panel protrusion: 690 mm)
approx. 120 kg (does not include glass set)
Weight
394
107
1291
2221
187
69
675
621
971
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DISTILLATION SETTING
1. General
Using rotational evaporators for thermal breakdown of substances needs some basic
considerations about optimizing the distillation process. Parameters stipulated below are to be
considered for making optimal settings.
•
Rotational speed, evaporator flask
Increasing rotational speed will increase rate of distillation. Shorter distillation time preserves
thermal stability of your substances to be distilled.
•
Difference between heating bath and vapor temperatures:
This temperature difference should not be less than 20° C to maintain proper rate of distillation.
As long as your substances in distillation allow, you may even chose a higher temperature
difference.
Rule of thumb: doubling actual temperature difference doubles rate of distillation.
•
Temperature difference between vapor temperature and coolant:
To maintain adequate condensation rates, we recommend a 20° C temperature difference
between the solvent vapor temperature and coolant. A low temperature difference will affect
solvent recovery. For substances with high evaporation heat, you should increase temperature
difference.
2. Select vacuum control mode
2.1. p
const vacuum
control mode
The pconst mode includes the following features:
•
•
•
•
•
•
One of the most important modes of control
Requires optional vacuum valve and vacuum pressure sensor
Selective distillation of different substances within the scope of their physical properties
Distillation of solvent mixtures need manual pressure settings
High reproducibility
Requires knowledge of thermodynamic substance data
first choice for all standard processes
•
For operation & parameter settings refer to page 81
•
Pressure (set vacuum) and hysteresis p (set p) need to be set
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Select pressure p as to locate boiling point of the substance to be distilled between bath
temperature and coolant temperature, make reference to General Notes. For more information
refer to table and chart on page 66.
•
p (hysteresis) value defines max. pressure rise in mbar to open the vacuum valve.
Extended open valve times results in high rates of solvent loss due to extensive gas
transfer.
Low-boiling substances require a higher p-value (5 – 10 mbar), high-boiling substances a lower
value (1 – 5 mbar)
2.2. T auto vacuum control mode
•
•
•
•
•
•
•
•
The T auto mode includes the following features:
Needs optional temperature sensor, vacuum valve and vacuum pressure sensor
Selective distillation of substances does not need manual pressure setting
Easy to reproduce
Easy setting
No need to know about thermodynamic substance data
first choice for low-pollution / zero-loss distillation.
Due to its location, the temperature sensor detects coolant temperature as an approximate
only. Set T auto values of 2 – 8°C above coolant temperature for optimum reproducibility.
Increasing this temperature span results in a higher rate of distillation with a decrease in
reproducibility.
3. Solvent data
•
•
Examples for using table and chart:
The table displays essential substance data, the chart makes reference to the relationship
between pressure and boiling point of some solvents. In this case, 1/T is plotted as a function
of log p in accordance with the Clausius-Clapeyron equation.
a) Distillation of a solvent contained in the table:
• on the LABOROTA 20 control set the value from column “vacuum for set point at 40°C“ as
reference value for Set Vacuum.
b) Distillation of a solvent contained in the chart, with a boiling point other
than 40°C:
• Mark the boiling point desired on the temperature axis of the chart
• Draw a line to the right to get an intersection with the solvent
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•
Vacuum pressure required for this one situation is found by drawing a vertical line from this
intersection down to the horizontal axis.
c) Distillation of a solvent not contained in the table or chart:
• The following notes may be helpful to determine the appropriate vacuum pressure:
• The line gradient is a function of enthalpy of evaporation. It is similar for chemically related
substances with boiling points close to each other. Hence, the plotted lines may be used as a
guide for substances with slightly different boiling points.
• Using a water-jet or diaphragm-type pump, you may lower boiling point by approx. 100°C.
• Rule of thumb: decrease pressure to a half will lower boiling point by approx. 15°C.
Avoid overpressure in the glassware kit while distilling low-boiling solvents. Aerate
glassware kit as required. Overpressure in the glassware kit may damage the evaporator
or even blow-up parts of the glassware kit.
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MW
MW
Hvap
[g/mol]
[°C]
[J/g]
58,08
41,05
56,5
81,8
550
833
78,11
74,12
74,12
72,11
88,15
112,60
84,16
98,96
96,94
96,94
84,93
74,12
102,20
73,09
88,11
46,07
88,11
85,09
86,18
32,04
88,15
202,30
72,15
88,15
60,10
60,10
167,90
165,80
153,80
72,11
92,14
133,40
131,40
119,40
18,02
106,20
80,1
117,5
82,9
79,6
55,0
132,2
80,7
82,4
59,0
47,8
40,7
34,6
67,5
153,0
101,1
78,4
77,1
98,4
68,7
64,7
130,6
160,5
36,1
137,8
97,8
82,5
145,9
120,8
76,7
66,0
110,6
74,1
86,7
61,3
100,0
137-143
549
619
588
473
236
25
130
243
177
19
98
182
375
389
336
320
313
373
392
318
36
235
210
479
751
atm.
atm.
375
11
107
175
240
120
335
337
14
13
atm.
11
67
137
35
53
271
357
77
300
183
474
72
25
27
176
158
134
563
atm.
atm.
281
8
80
131
180
90
251
253
11
10
atm.
8
50
103
26
40
203
268
58
225
137
356
54
19
Conversion factor [mbar] to [mm(Hg)]:
[mm( Hg )]
Solvent
Aceton
Acetonitril
Total
formula
C3H6O
Benzol
n-Butanol (Butylalkohol)
tert.-Butanol (tert.-Butylalkohol)
2-Butanon (Methylethylketon)
tert.-Butylmethylether
Chlorbenzol
Cyclohexan
1,2-Dichlorethan
1,2-Dichlorethylen (cis)
1,2-Dichlorethylen (trans)
Dichlormethan (Methylenchlorid)
Diethylether
Diisopropylether
Dimethylformamid
1,4-Dioxan
Ethanol
Ethylacetat
Heptan
Hexan
Methanol
3-Methyl-1-Butanol (Isoamylalkohol)
Pentachlorethan
Pentan
n-Pentanol (Amylalkohol)
1-Propanol (n-Propylalkohol)
2-Propanol (Isopropylalkohol)
1,1,2,2-Tetrachlorethan
Tetrachlorethylen
Tetrachlormethan (Carbontetrachlorid)
Tetrahydrofuran
Toluol
1,1,1-Trichlorethan
Trichlorethylen
Trichlormethan (Chloroform)
Wasser
Xylol (Isomeren-Gemisch)
C2H3N
C6H6
C4H10O
C4H10O
C4H8O
C5H12O
C6H5CI
C6H12
C2H4CI2
C2H2CI2
C2H2CI2
CH2CI2
C4H10O
C6H14O
C3H7NO
C4H8O2
C2H6O
C4H8O2
C7H16
C6H14
CH4O
C5H12O
C2HCI5
C5H12
C5H12O
C3H8O
C3H8O
C2H2CI4
C2CI4
CCI4
C4H8O
C7H8
C2H3CI3
C2HCI3
CHCI3
H2O
C8H10
66
406
879
394
439
370
1225
593
203
382
593
787
701
247
233
225
425
251
265
263
2259
390
3 [mbar ]
4
Vacuum for
Boiling point
at 40°C
[mbar]
[mm(Hg)]
556
387
230
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LABORATORY SET-UP
SAFETY INFORMATION:
THIS APPLIANCE IS NOT EXPLOSION-PROTECTED. USE EXTREME CARE WHEN USING IN
THE VICINITY OF FLAMABLE OR EXPLOSIVE SUBSTANCES.
When connecting this product with your local power supply, make sure you got the right
thing ! Check VOLTAGE DATA on DATA PLATE (located in the rear).
This product has to be branched with your local 3-phase network by a skilled electrician.
Wire code:
GREEN/YELLOW
BLUE
BROWN
BLACK
BLACK
= protective ground (PE)
= neutral (N)
= phase (L)
= phase (L)
= phase (L)
SET-UP
Carefully unpack all parts, inspect for missing parts by packing list.
4. Set-up
•
•
•
•
The LABOROTA 20 control with its
transportation rods is bolted to the pallet.
Remove these screws and carry the unit to its
place of installation (CAUTION: 2 persons
needed; in this configuration, unit’s weight is
about 110 kg).
Place the LR 20 on a stable level stand. In
ready-to-go configuration, unit’s weight will be
about 160 kg ! Ideal stand height above
ground is 60 cm, this enables easy access to
all controls. We recommend the optional
LABOROTA 20 base (P/N 591-23000-00).
Remove transportation rods and keep for later
use. Re-install LABOROTA 20 S control
collecting flask panels (1 & 2) having been
removed for transport. Attach panel, to include
front door (2) with screws at points (4).
Through-holes for carrying rods are plugged
with caps (5).
Install protective cabinet (6) on table (7), door
pointing towards operator. Use screws (8)
pre-installed in attaching holes.
67
6
8
7
3
4
1
2
1
5
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5. Install vapor tube and PTFE-seal
3
10
2
8
1
9
11
15
7
6
4 5
13
12
14
16
Unscrew large-size (1) and small (2) coupling rings. Lock driveshaft by turning drive lock (3) CW to
ease loosening and tightening of large-size ring (1).
•
•
•
•
Remove PTFE-adapter (4) with built-in PTFE-O-ring (5) and PTFE-seal (6)
Install backing ring (7) and vapor tube (8) in drive head. Put sandwich gasket (9) on vapor tube
coupling flange
Slide small ring (2) over coupling flange of distributor (10). Expand small split ring (11) and
slide over distributor (10) coupling flange, shoulder pointing forward
Secure assembly (10, 2, 11) tight with small coupling ring (2).
Slide PTFE seal (6) on vapor tube (8), sealing lip pointing inward
Never attempt to work with damaged or worn-out PTFE gasket (6). Not reaching vacuum
pressure wanted may damage your rotary evaporator. Inspect PTFE gasket (6) in
regular intervals and replace on condition.
•
•
Slide PTFE-adapter (4) with built-in PTFE-O-ring (5) into drive module.
Slide large-size coupling (1) over evaporator flask (12) coupling flange. Expand large
split ring (13) and slide over evaporator flask (12) coupling flange, shoulder pointing
forward. Set flask support tubes to 10 liter or 20 liter mark and lock with knobs (14); (I =
10 l, II = 20 l)
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•
Locate evaporator flask on flask lift support tubes (15), tilt flask neck towards drive head, center
connecting flange in drive head, so that connecting flange rests against PTFE-O-ring (5)
located in PTFE-adapter (4).
Screw large-size ring (1) tight. When evacuating, double-check for firm seat
•
Return flask lift support tubes to initial position (16), CAUTION: basic position uses electronic
monitor circuit. Leaving this position will freeze all electric functions of the LABOROTA 20
control. This situation is reported by an LED on the control panel (flask support).
6. Install condensers and expansion
vessel
•
•
•
•
•
3
1
Loosen thumbscrew (2), lift bracket (1)
completely and secure with
thumbscrew (2)
Place rubber side of washer (3) on
lower bracket (4), line up holes. Put
one more washer (3) with rubber side
pointing up on upper neck of condenser
or expansion vessel (5)
Plug lower neck of condenser or
expansion vessel (5) through cutout in
bracket (4) and washer (3), and tilt to
an upright position
Loosen thumbscrew (2) and slide
bracket (1) over upper neck of
condenser or expansion vessel. Make
vertical adjustment with bracket (4)
Rotate thumbscrew (2) tight when
condenser or expansion vessel are in
an exactly upright position.
2
5
3
4
6
3
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7. Install collecting flask in cassette
Loosen and remove 4 ea. knurled knobs (1).
• Lift and remove top panel (2).
• Install collecting flask (6) in bottom panel (3).
Aerating fitting (4) needs to point forward.
• Reinstall top panel (2) and secure with the 4 knurled
knobs (1)
• Install cassette assembly. (with collecting flask) on
bracket (8)
• Hold handle (7) of bracket (3), loosen thumbscrew
(5), and lower bracket completely; install cassette
completely (direction as marked).
• Lift handle (7) until ground joint of collecting flask
reaches mating end of condenser, secure with
thumbscrew (5)
• use KS45 flask clamp to secure both parts in place
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8. Install inlet pipe with valve and screwed cap
1. Valve sealing point is adjusted by turning an Allen screw clockwise with the Allen wrench (4)
supplied.
2. Slide threaded ring (5) and gasket kit (5) over PTFE inlet hose (1), as shown. Secure inlet pipe
(2) on distributor (6) with threaded ring (5).
3. Install nipple with (7) on inlet pipe (2) with coupling ring (8). Nipple accepts an ID = 6.6 mm
hose.
4
3
2
1
7
8
5
6
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GLASS-SET -R (CONTROL) 15-300-006-21
components
A 15-300-001-11
B 15-300-002-31
C 15-300-002-58
C1 15-300-002-57
E 15-300-002-29
F 15-300-003-17
H 15-300-004-11
H1 15-300-002-56
I
15-300-002-54
I1 04-03-01-06-02
N 11-300-003-25
O 15-300-002-45
P 11-300-005-22
Q 23-09-03-01-27
R 23-30-01-02-64
S 23-09-03-01-23
T 23-09-03-01-24
U 11-300-002-94
V 11-300-002-95
W 23-30-01-01-09
X 23-30-01-03-31
Z 15-300-001-08
condenser, T auto (R) *
vacuum fitting
distributor, includes valve (control)
valve GL25/165
vapor tube, ground
evaporator flask, 20 l
collecting flask, 10 l, features bottom drain
valve GL25/125 lg.
inlet pipe
hose, PTFE 6.5x0.5
GL25 coupling kit
valve GL18
nipple for GL14
coupling ring GL14
nipple for GL18
coupling ring GL18
screwed cap GL18
threaded joint KS 64, coated
flask clamp for S40/S41
sandwich gasket 50 / 69 / 3
spacer sleeve
condenser
U
A
B
C1
R, S
C, E, W
T, T1
O
F
I, I1, N,
P, Q
Z
V
H, H1
Use this list when checking your shipment for completeness.
* (w. connecting stud for T1 temp. sensor used in T auto vacuum control mode)
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GLASS-SET -RC (CONTROL) 15-300-006-22
components
A 15-300-001-11
B 15-300-002-31
C 15-300-002-58
C1 15-300-002-57
E 15-300-002-29
F 15-300-003-17
G 15-300-002-59
G1 15-300-002-56
H 15-300-004-11
H1 15-300-002-56
I
15-300-002-54
I1 04-03-01-06-02
N 11-300-003-25
O 15-300-002-45
P 11-300-005-22
Q 23-09-03-01-27
R 23-30-01-02-64
S 23-09-03-01-23
T 23-09-03-01-24
U 11-300-002-94
V 11-300-002-95
W 23-30-01-01-09
X 23-30-01-03-31
condenser, T auto (R) *
vacuum fitting
distributor, includes valve (control)
valve GL25/165
vapor tube, ground
evaporator flask, 20 l
distributor, includes valve
valve GL25/125 lg.
collecting flask, 10 l, features bottom drain
valve GL25/125 lg.
inlet pipe
hose, PTFE 6.5x0.5
GL25 coupling kit
valve GL18
nipple for GL14
coupling ring GL14
nipple for GL18
coupling ring GL18
screwed cap GL18
threaded joint KS 64, coated
flask clamp for S40/S41
sandwich gasket 50 / 69 / 3
spacer sleeve
B
U
A
R, S
C1
T
T, T1
C, E, W
O
F
I, I1, N, X
P, Q
G1
G
V
H, H1
Use this list when checking your shipment for completeness.
* (w. connecting stud for T1 temp. sensor used in T auto vacuum control mode)
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GLASS-SET -A (CONTROL) 15-300-006-23
components
A 15-300-001-12
B 15-300-002-31
C 15-300-001-09
D 15-300-002-39
E 15-300-002-29
F 15-300-003-17
G 15-300-002-40
H 15-300-004-11
H1 15-300-002-56
I
15-300-002-54
I1 04-03-01-06-02
K 15-300-002-41
N 11-300-003-25
O 15-300-002-45
P 11-300-005-22
Q 23-09-03-01-27
R 23-30-01-02-64
S 23-09-03-01-23
T 23-09-03-01-24
U 11-300-002-94
V 11-300-002-95
W 23-30-01-01-09
X 23-30-01-03-31
Y 15-300-002-60
Y1 15-300-002-56
condenser, T auto (A) *
vacuum fitting
expansion vessel
elbow
vapor tube, ground
evaporator flask, 20 l
Tee
collecting flask, 10 l, features bottom drain
valve GL25/125 lg.
inlet pipe
hose, PTFE 6.5x0.5
distributor, to expansion vessel
GL25 coupling kit
valve GL18
nipple for GL14
coupling ring GL14
nipple for GL18
coupling ring GL18
screwed cap GL18
threaded joint KS 64, coated
flask clamp for S40/S41
sandwich gasket 50 / 69 / 3
spacer sleeve
valve body & valve
valve GL25 / 125 lg.
U
D
R, S
A
C
O
T, T1
E, W, K
I, I1, N, X
B
F
G
P, Q
Y, Y1
V
H, H1
Use this list when checking your shipment for completeness.
* (w. connecting stud for T1 temp. sensor used in T auto vacuum control mode)
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GLASS-SET -AC (CONTROL) 15-300-006-24
components
A 15-300-001-12
B 15-300-002-31
C 15-300-001-09
D 15-300-002-39
E 15-300-002-29
F 15-300-003-17
G 15-300-002-40
H 15-300-004-11
H1 15-300-002-56
I
15-300-002-54
I1 04-03-01-06-02
K 15-300-002-41
L 15-300-002-59
L1 15-300-002-56
N 11-300-003-25
O 15-300-002-45
P 11-300-005-22
Q 23-09-03-01-27
R 23-30-01-02-64
S 23-09-03-01-23
T 23-09-03-01-24
U 11-300-002-94
V 11-300-002-95
W 23-30-01-01-09
X 23-30-01-03-31
condenser, T auto (A) *
vacuum fitting
expansion vessel
elbow
vapor tube, ground
evaporator flask, 20 l
Tee
collecting flask, 10 l, features bottom drain
valve GL25/125 lg.
inlet pipe
hose, PTFE 6.5x0.5
distributor, to expansion vessel
distributor, includes valve
valve GL25 / 125lg.
GL25 coupling kit
valve GL18
nipple for GL14
coupling ring GL14
nipple for GL18
coupling ring GL18
screwed cap GL18
threaded joint KS 64, coated
flask clamp for S40/S41
sandwich gasket 50 / 69 / 3
spacer sleeve
D
U
R, S
A
C
T, T1
O
B
E, K, W
I, I1, N, X
F
G
P, Q
L, L1
V
H, H1
Use this list when checking your shipment for completeness.
* (w. connecting stud for T1 temp. sensor used in T auto vacuum control mode)
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GLASS-SET - A2 (CONTROL) 15-300-006-25
components
A 15-300-001-11
A1 15-300-001-12
B 15-300-002-31
C 15-300-001-09
D 15-300-002-39
E 15-300-002-29
F 15-300-003-17
G 15-300-002-40
H 15-300-004-11
H1 15-300-002-56
I
15-300-002-54
I1 04-03-01-06-02
K 15-300-002-41
N 11-300-003-25
O 15-300-002-45
P 11-300-005-22
Q 23-09-03-01-27
R 23-30-01-02-64
S 23-09-03-01-23
T 23-09-03-01-24
U 11-300-002-94
V 11-300-002-95
W 23-30-01-01-09
X 23-30-01-03-31
Y 15-300-002-60
Y1 15-300-002-56
condenser, T auto (R) *
condenser, T auto (A2) *
vacuum fitting
expansion vessel
elbow
vapor tube, ground
evaporator flask, 20 l
Tee
collecting flask, 10 l, features bottom drain
valve GL25/125 lg.
inlet pipe
hose, PTFE 6.5x0.5
distributor, to expansion vessel
GL25 coupling kit
valve GL18
nipple for GL14
coupling ring GL14
nipple for GL18
coupling ring GL18
screwed cap GL18
threaded joint KS 64, coated
flask clamp for S40/S41
sandwich gasket 50 / 69 / 3
spacer sleeve
valve body & valve
valve GL25 / 125 lg.
D
B
R, S
A1
U
T, T1
C
A
O
E, K, W
I, I1, N, X
G
P, Q
F
Y, Y1
V
H, H1
Use this list when checking your shipment for completeness.
* (w. connecting stud for T1 temp. sensor used in T auto vacuum control mode)
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GLASS-SET -A2C (CONTROL) 15-300-006-26
components
A 15-300-001-11
A1 15-300-001-12
B 15-300-002-31
C 15-300-001-09
D 15-300-002-39
E 15-300-002-29
F 15-300-003-17
G 15-300-002-40
H 15-300-004-11
H1 15-300-002-56
I
15-300-002-54
I1 04-03-01-06-02
K 15-300-002-41
N 11-300-003-25
O 15-300-002-45
P 11-300-005-22
Q 23-09-03-01-27
R 23-30-01-02-64
S 23-09-03-01-23
T 23-09-03-01-24
U 11-300-002-94
V 11-300-002-95
W 23-30-01-01-09
X 23-30-01-03-31
Y 15-300-002-59
Y1 15-300-002-56
condenser, T auto (R) *
condenser, T auto (A2) *
vacuum fitting
expansion vessel
elbow
vapor tube, ground
evaporator flask, 20 l
Tee
collecting flask, 10 l, features bottom drain
valve GL25/125 lg.
inlet pipe
hose, PTFE 6.5x0.5
distributor, to expansion vessel
GL25 coupling kit
valve GL18
nipple for GL14
coupling ring GL14
nipple for GL18
coupling ring GL18
threaded cap GL18
threaded joint KS 64, coated
flask clamp for S40/S41
sandwich gasket 50 / 69 / 3
spacer sleeve
distributor, includes valve
alve GL25 / 125 lg.
B
D
U
A
R, S
A1
T, T1
C
O
E, K, W
I, I1, N, X
F
G
P, Q
Y, Y1
V
H, H1
Use this list when checking your shipment for completeness.
* (w. connecting stud for T1 temp. sensor used in T auto vacuum control mode)
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WORKING WITH THE LABOROTA 20 CONTROL
Use rotary evaporators with appropriate care. Comply with standard laboratory safety practices.
Be cautious when working with flammable solvents; motors and limit switches are of non-sparking
type but we cannot guarantee that the unit is explosion-proof.
SAFETY INFORMATION:
WHEN CONNECTING YOUR UNIT WITH YOUR LOCAL POWER SUPPLY, PLEASE
MAKE SURE YOUR UNIT IS DESIGNED FOR YOUR LOCAL SUPPLY VOLTAGE; GO
BY DATA PLATE ON THE UNIT.
CONNECT YOUR ROTARY EVAPORATOR WITH A GROUNDED OUTLET ONLY.
CONTROL PANEL
9. Master switch / EMERGENCY-CUT-OUT
Emergency CUT-OUT
Master switch
The master switch disconnects all wires from power supply, and serves as a RESET button. (after
Emergency CUT-OUT).
The Emergency CUT-OUT discontinues operation of the rotary evaporator immediately.
• Stop rotation
• Lowers heating bath
• Opens aerating valve (vacuum valve closes)
• Turns OFF heating circuit
• Buzzer sounds
• Emergency LED turns ON
CAUTION: if entry of ambient air causes unwanted reactions, take adequate action (inert gas, or
keep aerating valve closed).
System re-start after an Emergency CUT-OUT situation requires system RESET. Make sure the
problem is fixed before resetting. See an expert, if required.
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To Reset, turn Master switch OFF & ON.
10. Heating bath lift
Heating bath lift RAISES, as long as the Lift UP
key is held depressed.
Heating bath lift LOWERS, as long as the Lift DOWN
key is held depressed.
Lift UP
At upper and lower limits, lift motion stops automatically.
The LABOROTA 20 control WB (water bath) features a fully
automatic water refill system with float switch.
Exceeding the max. fill mark (about 30 mm below tank rim,
monitored by float switch), the Lift UP motion is discontinued
automatically.
Lift
DOWN
float switch must be connected
As water in the heating bath evaporates, the heating bath itself travels up in small increments for
compensation, until reaching the upper stop.
If max fill level is not sensed at the upper stop, the water will be refilled automatically.
The LABOROTA 20 control OB (oil bath) features neither refill or float switch.
11. Speed setting
Display
Act Speed LED
Select key
Start key
Stop
Rotation LED
increase
Set Speed LED
Change between Act Speed and Set Speed display with
Select key. Act Speed LED or Set Speed LED illuminate.
Select LED Set Speed for speed setting.
Nominal speed (rpm) appears in the display.
Change nominal speed with Set keys.
5 seconds after last entry, display will change to “Act”, last
entry will be saved.
Start rotation with Start Stop key.
Hit this key once more to stop rotation.
decrease
CAUTION: for safety reasons, start rotation at low speeds.
Rotational speed can be increased during operation.
Never exceed a speed of 100 rpm, while working with a 20 l evaporation flask.
If rotation does not start with the START/STOP key, please check for illumination of one or more of
the Safety Cover, Flask Support or Rotation Stop LED’s.
If this occurs check if the enclosure is open, flask support not in one of its extreme positions, or the
drive drive lock engaged.
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For more information refer to Troubleshooting Section.
12. Heater
Display
Act Bath LED
Set Bath LED
Select
key
Start / Stop
key
Act Chiller LED
Heater LED
Heater control LED
Change between Act Bath, Set Bath and Act Chiller with set key. Act Bath, Set Bath or Act Chiller
LED turns ON.
Act Chiller is the actual coolant temperature, which is the basis for the T auto vacuum control
mode.
To set heating bath temperature, select Set Bath LED.
Display now shows the heating bath’s nominal temperature with a 1/10 of a degree C resolution.
Change heating bath temperature with the Set keys.
Not pressing one of these keys for 5 seconds will cause the display returns to “Act” mode. The last
figure entered is saved.
The Start Stop key turns the heater ON.
Pressing the key once more will discontinue heating.
The Heater LED illuminates as long as the heating mode is kept active, the Heater control LED
illuminates as long as heating current flows. (Act Bath < Set Bath)
Should the Heater LED remain dim after pressing the Start Stop key, please check to see if the
Over temperature Protection LED is ON or flashing.
increase
For more information refer to Troubleshooting
Section.
decrease
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13. Select vacuum control mode
Vacuum control requires the optional vacuum pressure valve and –sensor.
The Mode key changes between p const and T auto
vacuum control modes. p const or
T auto LED illuminates.
You may change between these vacuum control
modes during operation. For more information about
vacuum control modes please refer to Distillation
Settings Section.
P const
LED
Mode key
T auto LED
14. p const vacuum control mode
In this mode, a vacuum level once selected will be maintained. Set Vacuum key sets the level and
Set p your control span p (hysteresis). Act Vacuum key provokes display of actual pressure.
Start Stop key
Display
Act Vacuum
LED
Set Vacuum LED
Select key
p LED
Aeration LED
LED
Vacuum
Valve LED
increase
Change between Act Vacuum, Set Vacuum and Set
p with Select key. Act Vacuum LED, Set Vacuum
LED, or Set p LED will illuminate.
Select Set Vacuum LED for setting the nominal
vacuum level.
The nominal suction pressure in mbar appears in
your display.
Change nominal suction pressure level with the Set
keys.
Not pressing one of these keys for 5 seconds will
return the unit to “Act” mode. The last figure entered
is saved.
decrease
Select Set p LED for setting hysteresis of p.
Use SET keys as required.
The Start Stop key starts evacuation.
Press the key for an instant to interrupt evacuation without opening the aerating valve, Valve LED
flashing; one more brief press on this key continues evacuation.
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Extended actuation of the Start Stop key discontinues evacuation, the aerating valve opens, the
vacuum valve is closed.
Vacuum LED illuminates, when “vacuum control” was selected with the Start Stop key.
Ventilation LED illuminates, when the aerating valve is open.
Valve LED illuminates, when the vacuum valve is open.
Valve LED flashes, when evacuation was interrupted without aeration.
15. T auto vacuum control mode
In this mode, vacuum pressure level is controlled by an optional temperature sensor. For
installation refer to Options Section (page 93).
T auto is a low-pollution mode. This special vacuum control allows very low quantities of solvents
to be extracted by the vacuum pump.
The T auto temperature sensor detects temperature in the middle of the condenser.
For cooling water temperature, the LABOROTA 20 control uses a separate temperature sensor
(act Chiller).
Set T auto is set to 2 – 10 °C (temperature difference from cooling water).
A high Set T auto value results in high-speed distillation, whereas a low value renders a slow and
controlled distillation process.
When reaching the temperature difference (in the condenser) once set with Set T auto, the
vacuum valve closes; as soon as the temperature drop equals Set Vapor (hysteresis), the valve
will open once more. A current Vapor setting is 0.5°C.
Display
Act Vapor LED
Act T auto LED
Select key
T auto LED
Vapor LED
Pressing the Select key changes display
reading between Act Vapor, Act T auto,
Set T auto and Set Vapor.
The Act Vapor, Act T auto, Set T auto or
Set Vapor will illuminate.
increase
Act T auto shows command temperature in
the condenser for mode T auto, i.e. at point
5 (see page 103), as soon as the
temperature sensor is installed and
connected with #4 plug connector (T auto
temperature sensor) (see page 103).
decrease
Act Vapor shows vapor temperature in the
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distributor, i.e. point 1 (see page 93) as soon as the temperature sensor is installed and connected
with #3 plug connector (boiling temperature sensor) (see page 93).
For Set T auto you need to select the Set T auto LED.
For hysteresis setting select LED Vapor.
Not pressing a key for 5 seconds, display returns to “Act” mode. The last figure entered is saved.
Start evacuation, as described in page 81.
16. Calibrate Vacuum pressure sensor
•
•
Vacuum pressure sensor and vacuum valve must be
installed on the LABOROTA 20 control and a vacuum
pump connected.
A separate, calibrated vacuum gauge should be
installed in the vacuum line near condenser
Turn vacuum pump ON
Turn LABOROTA 20 control master switch (Power)
OFF
Depress Select and Start Stop keys near Display I together and hold for 5 seconds, turn master
switch ON, release keys
„CAL“ is shown in the Display Speed, „VAC“ in the Display Time
•
750 is shown in Display I and 1 is shown in Display II (1st step).
•
•
•
•
Display I
Display II
Select key
750
1
CAL
VAC
Display Speed
Display Time
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Taste
Start /Stop
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•
•
•
•
•
•
•
•
Now, set the pressure measured with the separate vacuum
gauge in Display I, by pressing the Set increase key or Set
decrease key
Confirm with Start Stop key located next to Display I
Display I to show 50 and display II 2 (2nd step).
At this point, the LABOROTA 20 control automatically
opens the vacuum valve and evacuates until reaching
vacuum limit (the value on the separate vacuum gauge
won’t change anymore)
In Display I, set the pressure measured with the separate
vacuum gauge in Display I, by pressing the Set increase
key or Set decrease key
Confirm with Start Stop key located next to Display I. As
confirmation for the accepted calibration values, „0“
appears in Display I and Display II
Turn master switch (Power) OFF and ON
Calibration is complete
increase
decrease
17. Auto Start Stop
The Auto Start Stop key combines several functions; this way,
distillation may be started and stopped automatically. Before
such action, enter all distillation parameters and start the
following functions with the Start Stop key:
• Lift UP
• Rotation ON
• Heater ON
• Vacuum ON
• Start timer (LED Act Time flashing)
An LED beside the Auto Start Stop key confirms such action.
CAUTION: if one or more functions are already active, e.g. heater, only the remaining functions will
be started.
The Time display shows time elapsed from pressing the Auto Start Stop key.
Pressing the Auto Start Stop key once more will reset the functions started:
• Lift DOWN
• Rotation OFF
• Heater OFF
• Vacuum OFF
• Buzzer sounds for 5 seconds
•
During this automatic mode, all distillation parameters may be changed!
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18. Timer
Display
Act Time LED
Set Ramp Time
LED
Set Time LED
Select key
Start Stop key
Set Ramp Value LED
The timer function allows to end distillation after a
preselected period of time has expired. After the time has
elapsed, the following actions will be taken:
• Lift DOWN
• Rotation OFF
• Heater OFF
• Vacuum OFF
• Buzzer sounds for 5 seconds
Turn timer ON and start
Select Timer with Select key.
Set hours and minutes with Set keys.
Start timer with Start Stop key, Timer LED flashes
Time remaining appears in display
Timer LED
increase
decrease
Turn timer ON and start, after having started with Auto Start Stop before
Pressing Start Stop Timer, Set Timer LED illuminates.
For more settings refer to above paragraph.
19. Safety cut-out in an overpressure situation
The LABOROTA 20 control has been designed for distillation under vacuum. All of its gaskets and
seals have been optimzed for this vacuum atmosphere.
In particular situations, i.e. distillation in absence of a vacuum pump (e.g. low boiling substances),
overpressure may build-up in the glassware kit. Please understand that our sealing system has not
been designed for such overpressure situations.
In adverse overpressure situations, solvent may get into the drive module and hence damage
bearings. As a safety precaution, when distilling in absence of vacuum, make sure to keep the
aerating valve and valve (3) of the inlet pipe (2) open (also refer to "SET-UP", Chapter 8 page 71).
Moreover LABOROTA 20 control features an electronic overpressure monitoring circuit;
"Emergency function" will disconnect the item to avoid overpressure damage.
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Description:
A vacuum sensor, installed to display and regulate distillation pressure, monitors pressure in the
glassware kit either. Pressure rise above e.g. 1100 mbar will disconnect the LABOROTA 20 control
by activating the „Emergency“ function:
Hot bath lift rises automatically,
heater and rotation are disconnected,
system is aerated,
a buzzer sounds continuously,
Emergency LED lights, Akt Vacuum LED flashes.
For remedy choose distillation under vacuum or keep aerating valve and valve (3) on inlet pipe (2)
open.
To reset Emergency-function, turn power switch OFF and ON.
Limit value:
Depending on local atmospheric pressure, limit value may be adjusted. In the factory, a standard
value of 1100 mbar was set, you may do your own settings between 900 and 1200 mbar.
Rule of thumb:
The higher your local elevation, the lower your limit value. Make reference to the pressure in the
aerated system, as displayed, plus about 50 mbar.
Edit limit value:
Turn LABOROTA 20 control OFF with "power" switch.
Depress Select and Start Stop keys in the „Time“ block
the same time, hold depressed and turn power switch
to "ON". Wait for all of the LEDs are lighted and release
Select and Start Stop keys.
Select key
Start Stop key
OVER
„OVER“ appears in the Display Speed
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Display I shows the actual limit value, e.g. 1,100
mbar. Use arrow keys to edit this value.
increase
decrease
Display I
Display II
Mode key
Display II shows the emergency cut-out function active or not by „ON“ or „OFF“. Use Mode key to
select „ON“ or „OFF“.
Do not override this safety feature except in very rare cases ! Your
LABOROTA 20 might be damaged !
Confirm this action by turning the power switch OFF.
20. Safety cut-off in case of a defect in the vacuum system
The LABOROTA 20 control has a special monitoring function for the vacuum.
Disconnected vacuum hoses, broken glass parts, defective vacuum pump, and lack of vacuum
from the central vacuum supply are recognized during distillation. These are recognized when a
previously set pressure limit value is exceeded. When this limit value is exceeded, distillation is
stopped by the „Emergency“ function.
Description:
The vacuum sensor, which is installed to display and regulate the distillation pressure, is used for
monitoring the pressure in the glass set. If the pressure rises above a limit value of 900 mbar, for
example, with the vacuum regulation activated, distillation is stopped by the „Emergency“ function:
The heating bath lift automatically moves downward,
The heater and rotation stop,
The system is aerated,
Continuous buzzer,
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Emergency LED illuminates, Akt Vacuum LED blinks, and “SAFE” is shown in the Vacuum Display
alternating with the actual pressure.
Reset the Emergency-Function by switching the master switch on and off again.
Limit value:
Depending upon the desired vacuum, at which distillation should occur, it can be advantageous to
adjust the limit value. From the factory, the limit value is set at 900 mbar. The limit value can be
changed from 0 to 1200 mbar.
Pay attention that the limit value is never set lower than the value, at which
distillation should occur, as an „Emergency“ will be triggered otherwise.
Change limit value:
Switch off the LABOROTA 20 control with the master
switch „Power“.
Simultaneously press the Select key and the Start Stop
key in the „Speed“ field and switch on the master
switch „Power“. Wait until all LED´s light up and then
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release the Select key and the Start Stop key.
Display I
Display II
Mode
900
ON
SAFE
Display Speed
Select key
Start /Stop
key
„SAFE“ appears in the Display Speed
Whether or not the safety cut-off is active (ON) or switched off (OFF) is shown in Display II (Temp
Vapour) with „ON“ or „OFF“. You can change from „ON“ to „OFF“ with the Mode key.
Switching off the safety cut-off is the sole responsibility of the user.
This function does not work during distillation without vacuum! Here, the safety
cut-off offers protection in case of excess pressure.
Even when using the auto function, the function only activates after the limit value
is exceeded. Ensure by experimentation that the set limit values are never reached!
The current limit value is shown in Display I (vacuum)
e.g. 900 mbar. The limit value can be changed with the arrow
keys.
Increase value
The process must be concluded by switching off the master
switch „Power“.
Decrease value
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21. Safety functions
•
•
•
•
•
•
All of the following cause LED ON situations.
The Safety Cover LED tells you that the enclosure is
open. Rotation won’t start, or rotation is going to stop.
Close hood and hit Start Rotation key.
Flask Support LED : Flask support is not in its extreme
position (either side). Rotation won’t start, or rotation is
going to stop, lift won’t work.
Move flask support to extreme position (both sides) and
secure with knurled knobs (5), (page 98).
LED Rotation Stop LED: Drive lock engaged, rotation
can’t start. Release lock by turning knob CCW.
Overheat Protection LED: Bath temperature beyond
acceptable limits. Heater won’t start, heater is disconnected. Check heater for possible
problems.
Overheat Protection LED flashing: After response, over temperature protection enters
Emergency mode (refer to next paragraph).
Heater won’t start, heater is disconnected.
Possible reasons: heating bath level insufficient, heating bath dry; refill.
Heater is broken.
After repair action allow bath to cool off and reset over temperature protection by depressing
little button with screwdriver.
Emergency LED: Emergency CUT-OUT actuated or over temperature protection response
(refer to para. above)
Heating bath lift descends automatically;
Heater and rotation OFF;
vacuum is turned OFF and system aerated.
Continuous buzzer
Reset with master switch OFF and ON
The Emergency LED being lighted and the Akt Vacuum LED flashing the same time means
the safety circuit detected an overpressure situation (refer to para. 19 page 85).
Heating bath lift descends automatically;
Heater and rotation OFF;
vacuum is turned OFF and system aerated.
Continuous buzzer
Reset with master switch OFF and ON
TIMER AND RAMP-FUNCTION
Timer and ramp functions allow to program time ramps for vacuum pressure (p const mode),
auto ( T auto mode), bath temperature and speed.
10 steps are available for every parameter.
A total of 40 individual times can be programmed.
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22. Set ramp values
Display
Act Time LED
Set Time LED
Select key
Start Stop key
Set Ramp Value LED
Set Ramp Time
LED
Timer LED
Before programming a new ramp, make sure to have deleted the old one (refer to “delete ramp”,
page 95).
Procedure 1st step:
You need to program 00:00 for the first time.
Press the Select key next to the Display Time until Set
Ramp Time LED illuminates.
Set Ramp Time LED ON. Display Time only is active,
all other displays are blank.
Display shows time for the present ramp in hh:mm.
increase
The time 00:00 should always be programmed as the
first time (is preset).
Press the Set keys to alter time setting (forward &
back).
Not pressing a key for 5 seconds, display will return to
Act. Last value entered will be saved.
To program parameter values as a function of times
decrase
selected, go to Set Ramp Value LED with the Select key
next to the Display Time. Set Ramp Value LED
illuminates, Set Ramp Time LED flashes.
Go to parameter desired with Select key next to the Display Time, Set LED illuminates:
the following parameters can be programmed:
vacuum (p const mode) Set Vacuum LED illuminates
T auto (T auto mode) Set T auto LED illuminates
bath temperature
Set Bath LED illuminates
speed
Set Speed LED illuminates
If one or more of the parameters listed above is not to be assigned a ramp function, leave this
parameter as „OFF“.
As shipped, no ramp functions are set. (“OFF“ displayed)
Values are programmed with the Set keys, as described.
Write value in memory by pressing the Select key once more.
Use the same procedure to program the next parameter.
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key Select for Set
Vacuum p const
OFF
OFF
key Select for Set T
auto b ei T auto
OFF
key Select for
OFF
key Select for
Set Bath
Set Speed
00:00
2nd step:
Now, select the LED Set Ramp Time by pressing the Select key next to Display Time repeatedly.
The time for the 2nd step of programming can be changed with the Set increase or Set decrease
keys.
After 5 seconds with no entry, the display returns to Act Condition. The last value is accepted.
Additional steps:
Additional steps can be programmed in the same manner as step 2.
Select Set Ramp Time LED to program the next time.
For complex ramps, we recommend you to use the form enclosed (for convenience). The same
page shows an example.
Note: Values only can be programmed that had been activated at 00:00 before.
Parameters, which were programmed as a ramp, cannot be changed during the process of the
ramp with the „Set Function“. Parameters that are not programmed as a ramp can be changed at
any time with the „Set Function“.
92
Time
Set Ramp Time
Set Vac
Set T auto
Set Bath
Set Speed
Unit
hh:mm
mbar
°C
°C
rpm
1
2
3
4
5
6
7
8
9
10
Time
Set Ramp Time
Set Vac
Set T auto
Set Bath
Set Speed
Unit
hh:mm
mbar
°C
°C
rpm
11
12
13
14
15
16
17
18
19
20
Time
Set Ramp Time
Set Vac
Set T auto
Set Bath
Set Speed
Unit
hh:mm
mbar
°C
°C
rpm
21
22
23
24
25
26
27
28
29
30
Time
Set Ramp Time
Set Vac
Set T auto
Set Bath
Set Speed
Unit
hh:mm
mbar
°C
°C
rpm
31
32
33
34
35
36
37
38
39
40
93
Time
Set Ramp Time
Set Vac
Set T auto
Set Bath
Set Speed
Unit
hh:mm
mbar
°C
°C
rpm
1
0:00
1000
OFF
20
20
2
0:15
1000
3
0:20
700
4
0:30
400
5
0:40
200
6
0:50
150
7
1:00
100
8
2:00
9
50
30
1200
70
1000
60
50
800
40
600
30
400
20
200
10
0
0
0:00
10
0:15
0:30
0:45
1:00
1:15
1:30
1:45
94
2:00
2:15
2:30
2:45
3:00
Set Vac
Set Bath
Set Speed
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23. Display ramp values
Ramp values once programmed can be displayed and edited.
Hit Ramp key; Ramp on LED illuminates. Press the Select key (Time) until Set Ramp Value
LED illuminates.
First programmed time 00:00 and corresponding value are displayed.
Void parameters are marked OFF.
More times and programmed values are displayed with the Set keys.
24. Edit ramp values
To edit a value, select with Select key.
Now edit value with the Set keys.
Accept new value by pressing the Select key once more.
Program more times: refer to para. 1, set ramp values.
25. Start ramp function
Program ramp values as described in 1).
Press Ramp key, Ramp on LED illuminates.
Hit Auto Start Stop key, Auto Start Stop LED illuminates.
The following functions are started:
lift UP
rotation ON
vacuum ON
heater ON
All values programmed for a ramp are controlled automatically.
Display shows time elapsed from START.
Values between times programmed are interpolated.
26. Discontinue ramp function
Ramp function may be discontinued any time.
To discontinue hit the Ramp key, Ramp LED dims.
The very last ramp function values are kept.
A ramp once programmed will be kept in memory even during power-off times and can be
used and edited all the time.
27. Delete ramp
Ramp LED and Set Ramp Value LED must illuminate.
Press both SET keys at the same time and hold. After 5 seconds, “del” appears for 3 seconds,
a buzzer sounds.
The ramp has been deleted.
With the ramp function activated, it is not possible to also activate the timer function! If the
timer function is activated during the ramp function, the ramp function will be switched off and
the current values of Set Vac, Set Bath, Set Speed, and Set T auto are accepted as Setvalues. These can then naturally be changed.
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INTERFACE
28. Connect interface
Make sure the Unit is OFF before you attempt to connect the interface cable.
Use a cable with SUB-D 9 connectors and connect with the terminal connector located
underneath the LABOROTA 20 control control panel.
29. Interface parameters
9600 Baud, no parity, 8 bits, 1 stop bit, no protocol
30. RS 232 interface
This interface allows you to specify all Set-values, move the lift up and down, open and close
aerating valve and vacuum valve.
All Act-values and status of safety functions may be recalled.
31. RS 232 interface commands
query
Command
action
remarks
Act commands
VAC?
Act Vacuum
VAP?
Act Vapor
TAU?
Act T auto
BATH?
Act Bath
CHILL?
Act Chiller
SPEED?
Act Speed
TIME?
Act Time
elapsed time, continuous operation
COUNT?
Act Time
time, timer mode
SET1?
query Set-value
SET2?
Safety functions
query Act-value
SC?
Safety Cover
0 = action; 1 = no action
FS?
Flask Support
0 = action; 1 = no action
RS?
Rotation Stop
0 = action; 1 = no action
OP?
Over
Temperature
Prot.
0 = action; 1 = no action
EM?
Emergency
0 = action; 1 = no action
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Triggering
Command
action
remarks
VAC=XXXX!
Set Vacuum
4-digit in mbar; range set 0000 to 1200
DP=XXX!
Set p
3-digit in mbar; range set 000 to 200
DT=XXX!
Set T auto
3-digit, one fractional part, in °C
range set 001 to 300 equals 0.1 to 30.0
DV=XXX!
Set Vapor
3-digit, one fractional part, in °C
range set 001 to 200 equals 0.1 to 20.0
BATH=XXXX!
Set Bath
4-digit, in 1°C increments
range set 0000 to 1800 equals 0.0 to 180.0
SPEED=XXX!
Set Speed
3-digit, in rpm; range set 000 to 180
Start Stop Vacuum
SV0! = OFF ; SV1! = ON
VVX!
Valve
vacuum valve; VV0! = CLOSE ; VV1! = OPEN
BVX!
Ventilation
aerating valve; BV0! = CLOSE ; BV1! = OPEN
MP!
Mode p const
go to p constant mode
MT!
Mode t auto
go to T auto mode
SBX!
Start Stop Bath
SB0! = heater OFF ; SB1! = heater ON
SSX!
Start Stop Speed
SS0! = rotation OFF ; SS1! = rotation ON
Set commands
Actions
SVX!
LU!
lift UP
LD!
lift DWN
FUNCTIONS AND HANDLING
32. Protective enclosure
The protective enclosure (1) is an extra
safety feature for the operator. Its large
pane of a special safety glass
guarantees a clear view of the rotating
flask. A handle (2) on the front is used
for closing and opening. In both
extreme positions, it is held by a
pneumatic strut.
Caution: Flask will not rotate unless
the hood is closed. Opening the
enclosure during operation will stop
rotation.
Safety Cover LED (6) illuminates.
After closing the enclosure, rotation is
restarted by the Start Stop key.
5
3
4
6
97
2
1
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33. Drive lock
picture on page 89
The drive lock facilitates opening and closing the large coupling ring (3), holding the flask (4).
• To engage lock: turn knob (5) CW until “lock” appears.
Manually rotate drive head, until lock snaps into place. Rotation Stop LED (6) on front panel
illuminates.
• To release lock: turn knob (5) CCW until “unlock” appears.
Rotation Stop LED (6) on front panel dims.
34. Tightening of Evaporator Flask
Evaporator Flask must be sufficiently tightened with large coupling ring (X).
For this purpose the large coupling ring (X) is equipped with a torque indicator. As illustrated below
the coupling ring has to be tightened until the indicator point (Y) is aligned with point „1“ (Z). This is
accompanied by a „click“. For distillation without vacuum the ring has to be tightened until point (Y)
is aligned with point „2“ (A).
If rule is not followed leakage can occur during operation.
X
Z
Y
A
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35. Flask supports
1
4
5
7
The flask supports make flask (1) removal (even filled) an easy job for one person.
3. Uninstall flask: Open enclosure (2). Engage drive lock (3). Slide support pipes (4) to flask (1)
from both sides. Check for firm contact and lock support pipes in place by tightening
thumbscrews (5) CW. Unscrew large coupling ring (6, not shown) by turning CCW. Tilt flask
neck with large coupling ring (6) forward. Remove flask carefully (coupling ring to remain on
flask).
4. Install flask: Open enclosure (2). Engage drive lock (3). Move support pipes (4) (both sides) to
the respective flask size mark (center of thumbscrew = mark). Mark I = 10 l flask; mark II = 20 l
flask. Lock support pipes in place by tightening thumbscrews (5) CW. Put flask (1) , holding
large coupling ring (6), on support pipes carefully. Swing flask axis with coupling ring in-line with
axis of rotation, until flange is centered in drive head. Secure PTFE-adapter (not shown) with
PTFE-O-ring tight by CW turn. Double-check for firm seat. Return support pipes to initial
position (7). Release drive lock (3). Caution: Basic position of support pipes is monitored by the
electronic circuit; when leaving this position, all electric functions of the system will freeze.
This situation is reported by the Flask Support LED on the control panel.
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36. Automatic water refill (water bath model only)
The LABOROTA 20 control WB features a automatic water refill system with float switch.
1
3
The float switch (1) monitors water level in the heating bath. When dropping below normal level
(about. 30 mm below tank rim), a solenoid valve (12, next para.) opens the water supply until
reaching the normal fill level. Cooling water is supplied to the heating bath via pipe.
The float switch needs to be connected with plug connector (3).
Caution: For technical reasons automatic refill requires the heating bath lift to be at its upper most
position.
Upward lift travel is limited by the float switch. Water control valve on the rear must be connected.
The float switch may fail due to calcareous deposits, causing the hot bath to be overfilled
or overflow. We recommend to decalcify this float switch every 6 months.
To this end uninstall float switch (disconnect plug connector (3) and loosen float switch
(1) attaching screws with a screwdriver.
Use commercial grade decalcifying agent (go by instructions on the pack), and immerse
float switch until fluid level reaches coupling nut. For treatment time refer to instructions
on the pack.
37. Vacuum and water distribution
11
10
8
9
12
7
16
6
13
15
5
15
4
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The rear panel of the unit contains a vacuum/water distributor. A central cooling water supply
optionally works with:
1 chiller ; 1 chiller plus 1 after-chiller, or 2 chillers. Refer to picture when connecting the water
hoses (ID=8 mm). Hoses are routed in the chiller panel and attached to the chiller with hose
nipples. Inlet flow control uses a ball valve (4). When using 2 chillers, open ball valve (5) (lever inline); when using 1 only chiller, close ball valve (6) (lever out-of-line). The same applies to the
coolant return network. When using 2 chillers, open ball valve (6) (lever in-line), using 1 only chiller,
close ball valve (6) (lever out-of-line).
Connect #1 chiller with the fittings (13). Coolant return is connected with fitting (15).
Vacuum pump is connected with vacuum fitting (7) (shown with optional vacuum valve), use ID = 8
mm vacuum hose). Connect vacuum distributor with fitting (8) on glass kit. Vacuum hose is routed
in the chiller panel to glass kit fitting and attached with screwed nipples. The built-in aerating valve
(9) is controlled from the control panel.
The aerating valve (9) is connected with #3 terminal connector (6-pin) (11).
Water refill solenoid valve (12) is connected with the lower terminal connector (4-pin) (10).
The cooling coils of the cooler may only be exposed to a maximum cooling water
pressure of 2 bar. So that higher pressure can never develop, no valve and no
restrictor may be installed in the cooling water return.
1
Always secure the cooling water hoses with hose clamps!
38. Pt100 temperature sensor, chiller
For T auto mode, a chiller Pt100 temperature sensor needs to be connected with terminal
connector (1).
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HEATING BATH FUNCTION AND HANDLING
39. Fill heating bath (water bath only)
Using de-ionized or distilled water needs to add 0.2 % of Borax (Na2B4O7*10H2O)
(corrosion inhibitor)
Please note: The use of tabwater as heating media can lead to calcification which
can provoke crevice corrosion.Therefore the user is strongly recommended to
clean the heating bath with an adequate polish on a regular basis.
Heating bath water supply uses the vacuum/water distributor (refer to page 100).
Connect inlet end to fitting. Heating bath fill uses line (12) and is controlled by a solenoid valve
(12). Also refer to page 100.
40. Drain heating bath (water bath only)
1
The rear panel of the LABOROTA 20 control with water bath
features a drain valve (1). To close valve turn black lever
perpendicular to line.
This valve drains bath fill into a tank (not supplied).
Caution: Allow water to cool to ambient to avoid burns.
41. Condensate drain
2
The LABOROTA 20 control (water
bath) features a condensate drain.
Water vapor from the hot bath is
condensed by the chiller coil (1) of
the condenser (2), and is collected in
a sump (3), which in turn is drained
through a nipple (4).
This nipple (4) accepts an elastic
hose (ID = 8 mm). The other end is
plugged in a collection tank.
1
3
4
42. Heating bath over
temperature protection
Once the over temperature protector responds (Over temperature Protection LED), allow the bath
to cool off and fix the problem.
Most possible reason: no water supply.
Descend heating bath lift to LOW.
Turn master switch OFF.
Reset over temperature protector by introducing an insulated screwdriver through the little hole at
the lower right end of the unit. (remove black plastic plug to gain access through panel)
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OPTIONS
43. Vacuum pressure
sensor/vacuum valve
In order to be able to regulate the
vacuum, the vacuum pressure sensor (1)
No.: 591 21000 00) and the vacuum valve
(2) (No.: 591 20000 00) are already
installed.
The vacuum pressure sensor is
connected to the top terminal connector
(3) and the vacuum valve to the second
terminal connector (4).
4
3
1
2
2
44. Temperature sensor for vapor
1
3
4
To display vapor temperature on the control
panel, you’ll need the optional temperature
sensor (1) (P/N 14-014-003-06). To install,
remove cap from temperature fitting (2) of
glass kit. Its plug fits the rear #3 terminal
connector of the drive head. Secure in place.
45. Temperature sensor for T auto vacuum mode
T auto vacuum control mode needs the optional temperature
sensor (5) (P/N 14-014-003-06).
To install, remove caps from condenser (6). When running the
T auto mode, connect temperature sensor with the forward
terminal connector (4) in the rear of the drive head.
103
6
5
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CLEANING & SERVICING
Cleaning: wipe housing clean with a damp cloth (add some mild liquid soap).
Note
To avoid damage to the surface finish, avoid using chlorine bleach, chlorinebased detergents, abrasive substances, ammonia, rags or cleaning agents
containing metal particles.
Rust stains appearing on the bottom of the hot bath after long-term use
are caused by foreign matter deposits (iron particles or rust particles).
Remove such rust stains and calcareous deposits with a conventional
phosphoric acid bathroom cleaner (decalcifying agent).
The float switch may fail due to calcareous deposits, causing the hot bath
to be overfilled or overflow. We recommend to decalcify this float switch
every 6 months.
To this end uninstall float switch (disconnect plug connector (3) and
loosen float switch (1) attaching screws with a screwdriver.
Use commercial grade decalcifying agent (go by instructions on the pack),
and immerse float switch until fluid level reaches coupling nut. For
treatment time refer to instructions on the pack.
Never attempt to work with damaged or worn-out PTFE gasket (6). Not
reaching vacuum pressure wanted may damage your rotary evaporator.
Inspect PTFE gasket (6) in regular intervals and replace on condition.
The unit is maintenance-free. Repair work is limited to technicians approved or appointed by
Heidolph Instruments. Please call your local Heidolph Instruments Dealer or a Heidolph
Instruments Field Representative (also refer to page 106).
UNINSTALL, FORWARD & STORE
Uninstall
Turn the item OFF and disconnect mains plug.
Forward & Store
1. We recommend to store the item and its components in its original box, or a similar container
that offers adequate protection against damage in transit. Tape the box securely.
2. Store the item in a dry place.
Caution
Do not jolt or shake the item during transport.
DISPOSAL
For disposal, please comply with your local or national regulations.
Separate by metal, plastic, etc.
Packing material to be treated as described above (material split).
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TROUBLESHOOTING
•
Master switch won’t light when turning ON
check power cord
master switch broken (call service)
•
Display: Act Vacuum “0000“
vacuum sensor broken or not connected
Display: Act Vacuum won’t change during evacuation
vacuum valve connected with vacuum pressure sensor terminal
Display: Act Vapor “----“
temperature sensor not connected or broken
Display: Act T auto “----“
T auto temperature sensor not connected or broken
Display: Act Chiller “----“
Cooling water temperature sensor not connected or broken
Vacuum valve inoperative
vacuum pressure sensor not connected with valve terminal, or valve broken
Display: Act Vacuum (aerated) differs from atmospheric
altitude correction factor not integrated.
Calibrate vacuum pressure sensor.
Poor vacuum pressure
inspect gaskets and fittings
check ground fittings, coat with vacuum grease, as required
PTFE seal installed the wrong way. Sealing lip needs to point towards drive head
check line to vacuum pump
Heating bath lift won’t travel up
float switch not connected or broken
also refer to safety functions section
lift mechanism broken
upper limit switch broken
Heating bath lift won’t travel down
lift mechanism broken
lower limit switch broken
No rotation
also refer to safety functions section
motor broken
Mode won’t change from P const to T auto.
T auto temperature sensor not connected or broken
Aerating valve won’t work. Aerating valve broken or not connected.
•
•
•
•
•
•
•
•
•
•
•
•
Also refer to safety functions (page 90)
Whenever facing a problem that cannot be fixed by the above information, call your authorized
Heidolph Instruments dealer right away.
105
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WARRANTY, LIABILITY & COPYRIGHT
Warranty
Heidolph Instruments warrants that the present product shall be free from defects in material
(except wear parts) and workmanship for 3 years from the date shipped off the manufacturer’s
warehouse.
Transit damage is excluded from this warranty.
To obtain such warranty service, get in touch with Heidolph Instruments (phone: ++49-9122-992068) or your local Heidolph Instruments Dealer. If defects in material or workmanship are found,
your unit will be repaired or replaced at no cost.
Misuse, abuse, neglect or improper installation are not covered by this warranty promise..
Alterations to the present warranty promise need Heidolph Instruments’ consent in writing.
Exclusion Clause
Heidolph Instruments cannot be held liable for damage from improper use or misuse. Remedy for
consequential damage is excluded.
Copyright
Copyright in pictures and wording of the present Instruction Manual is held by Heidolph
Instruments.
QUESTIONS / REPAIR WORK
If any aspect of installation, operation or maintenance remains unanswered in the present Manual,
please get in touch with the following address:
For repairs please call Heidolph Instruments (phone: ++49-9122-9920-68) or your local, authorized
Heidolph Instruments Dealer.
Note
You will receive approval for sending your defective item to the following address:
Heidolph Instruments GmbH & Co. KG
Lab Equipment Sales
Walpersdorfer Str. 12
D-91126 Schwabach / Germany
phone: ++49-9122-9920-68 Fax: ++49-9122-9920-65
E-Mail: [email protected]
Note
If you are based in the United States of America, please contact Heidolph US:
Heidolph Instruments, LLC
Lab Equipment Sales
2615 River Rd.
Cinnaminson, NJ 08077
Phone: 856-829-6160 Fax: 856-829-7639
E-Mail: [email protected]
106
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Safety Information
When shipping items for repair that may have been contaminated by hazardous
substances, please:
advise exact substance
take adequate protective action towards our parts receiving and service
personnel
mark the pack IAW Hazardous Materials Act
CE-DECLARATION OF CONFORMITY
We herewith declare that the present product complies with the following standards and harmonized
documents:
EMC-Act:
EN 61326: 1997 + A1:1998 + A2:2001+ A3 2003
EN 61000-3-2: 2000
EN 61000-3-3: 1995 + 1997 + A1:2001
EN 61326: 1997 + A1:1998 + A2: 2001+ A3 2003
EN 61000-4-2:1995 +A1:1998+A2:2001
EN 61000-4-3:2002 +A1:2002
EN 61000-4-4:1995 +A1:2001 + A2:2001
EN 61000-4-5:1995 +A1:2001
EN 61000-4-6:1996 +A1:2001
EN 61000-4-11:1994 + A1:2001
Low-voltage Act:
EN 61010-1 + EN 61010-2-010
107
01-005-004-01-1
04/2005
Heidolph Instruments GmbH & Co. KG
Technische Änderungen sind ohne vorherige Ankündigung vorbehalten.
Technical changes reserved. Publication not mandatory.
Sous réserve de modifications techniques sans notification préalable.
Nos reservamos el derecho de introducir modificaciones técnicas sin previo aviso.
Ci riserviamo il diritto di apportare modifiche tecniche senza alcun preavviso.
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