ARCA 824 series Operating Manual
Text of the manual
© ARCA Regler GmbH. All rights reserved.
Cover picture background: Freepik.com
Table of contents
1
General data........................................................................................................................... 5
1.1
Validity of the manual.............................................................................................................. 5
1.2
Contact details......................................................................................................................... 5
1.3
Other applicable documents.................................................................................................... 5
1.4
Place of storage of the manual................................................................................................ 5
2
Safety...................................................................................................................................... 6
2.1
Introduction.............................................................................................................................. 6
2.2
General safety information ...................................................................................................... 6
2.3
Explanation of symbols and notices........................................................................................ 6
2.4
Warning symbols on the device .............................................................................................. 7
2.5
Intended use............................................................................................................................ 7
2.6
Improper modifications to the device....................................................................................... 8
2.7
Qualified Personnel................................................................................................................. 8
2.8
Laws and regulations .............................................................................................................. 8
2.9
Liability disclaimer ................................................................................................................... 8
2.10
Conformity to European directives .......................................................................................... 8
3
Transport, storage and packaging .................................................................................... 10
3.1
Transport............................................................................................................................... 10
3.2
Storage.................................................................................................................................. 10
3.3
Packaging.............................................................................................................................. 10
4
Nameplate ............................................................................................................................ 11
5
Type key............................................................................................................................... 12
6
Exploded view ..................................................................................................................... 14
7
Parts list ............................................................................................................................... 15
7.1
Positioner .............................................................................................................................. 15
8
Description........................................................................................................................... 17
8.1
Function and structure........................................................................................................... 17
8.1.1
Cam plate.............................................................................................................................. 18
9
Installation ........................................................................................................................... 19
9.1
Safety instructions for assembly............................................................................................ 19
9.2
Mounting a linear actuator..................................................................................................... 20
9.2.1
Installation according to DIN/IEC 534 T6 (NAMUR).............................................................. 20
9.2.2
Integrated mounting on actuators series 812........................................................................ 22
9.2.3
Integrated mounting on actuators series 813........................................................................ 24
9.3
Installation of the swivel actuator .......................................................................................... 28
9.3.1
Installation according to VDI/VDE 3845 ................................................................................ 28
9.3.2
ARCA mounting on swivel actuator series 840 (external piping) .......................................... 29
9.3.3
Integrated mounting on actuators series 840........................................................................ 29
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Electrical connection .......................................................................................................... 32
11.1
I/P transducer........................................................................................................................ 32
11.2
Limit value transmitter .......................................................................................................... 32
11.2.1
Normal version (2-wire, N) .................................................................................................... 32
11.2.2
Safe design (2-wire, SN) ....................................................................................................... 32
11.2.3
Direct switching version (3-wire, E2)..................................................................................... 33
11.3
Position feedback.................................................................................................................. 33
11.3.1
Feedback potentiometer........................................................................................................ 33
11.3.2
Position transducer 3-wire..................................................................................................... 33
11.3.3
Position transducer 2-wire..................................................................................................... 33
12
Configuration....................................................................................................................... 34
12.1
Normal / Inversion ................................................................................................................. 34
12.1.1
Changeover switch................................................................................................................ 34
12.1.2
Select cam plate.................................................................................................................... 35
13
Commissioning ................................................................................................................... 36
13.1
Adjustment of zero point and stroke/angle of rotation........................................................... 36
13.2
Limit value transmitter .......................................................................................................... 37
13.3
Position feedback.................................................................................................................. 37
13.3.1
Feedback potentiometer........................................................................................................ 37
13.3.2
Position transducer................................................................................................................ 37
14
Service and maintenance ................................................................................................... 38
15
Retrofit / exchange / repair................................................................................................. 39
15.1
I/P module ............................................................................................................................. 39
15.1.1
Standard................................................................................................................................ 39
15.2
Limit value switch .................................................................................................................. 39
15.3
Feedback potentiometer and measuring transducer............................................................. 40
15.4
Manometer block................................................................................................................... 40
15.5
Spring.................................................................................................................................... 40
15.6
Piston lever............................................................................................................................ 40
15.7
Complete diaphragm chamber.............................................................................................. 41
15.8
Control piston bushing and wire............................................................................................ 41
16
Technical Data..................................................................................................................... 42
16.1
General data.......................................................................................................................... 42
16.2
Data for the basic device....................................................................................................... 42
16.3
Electrical data for options – inductive limit value transmitter................................................. 43
16.4
Electrical data for options – potentiometer and position feedback........................................ 44
17
Disposal and recycling ....................................................................................................... 45
Table of contents
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Series 824
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ARCA Regler GmbH
1 General data
Series 824
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09.2018 / 1.0
1
General data
This operating manual contains instructions that enable the product to
be safely and properly installed, put into operation and maintained.
The target group for this operating manual is exclusively specially
trained and authorised technical personnel.
Please contact the manufacturer if you encounter problems that cannot
be solved with the aid of this operating manual.
The product is subject to technical changes at any time.
1.1
Validity of the manual
This operating manual applies to the product in the version described in
the device pass.
1.2
Contact details
Further information about the product can be obtained from:
Manufacturer's address
ARCA Regler GmbH
Kempener Str. 18
D-47918 Tönisvorst
Tel.: +49 (0) 2156-7709-0
Fax: +49 (0) 2156-7709-55
E-mail: [email protected]
www.arca-valve.com
1.3
Other applicable documents
The product can be delivered as part of an actuator and equipped with
additional components that are described in their own operating manu-
als. The instructions as well as the warning and safety information con-
tained therein must also be observed.
Furthermore, the following documents apply in addition to this operating
manual.
▪Device pass
▪Installation drawing
1.4
Place of storage of the manual
The operating manual and all other applicable documents are part of the
product. They must be kept in the immediate vicinity of the product and
must be accessible to the personnel at all times.
ARCA Regler GmbH
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Series 824
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2
Safety
2.1
Introduction
This manual contains all the information you need for the connection and
commissioning of the device.
It is addressed to people who mechanically mount, electrically connect
and commission the device, as well as service and maintenance techni-
cians.
We expressly state that the contents of this device manual do not form
part of or modify a former or existing agreement, assurance or of a legal
relationship. All obligations are specified in the particular purchase con-
tract which also contains all the applicable warranty regulations. These
contractual warranty conditions are neither extended nor restricted by
any statements in this document.
The contents reflect the technical state at the time of printing.
We reserve the right to make technical changes in the course of further
development.
WARNING
Use of a damaged or incomplete device
Risk of explosion!
►Do not use damaged or incomplete devices.
2.2
General safety information
Requirement for safe use
This equipment has been supplied from the factory in a totally safe con-
dition. To maintain this condition and to ensure safe operation of the
device, follow these instructions and observe all safety-relevant informa-
tion.
Pay attention to the notices and symbols on the device. Do not remove
any notices or symbols from the device. Keep the notices and symbols
in a fully legible condition at all times.
2.3
Explanation of symbols and notices
This documentation contains notes that you must observe for your own
personal safety and for the avoidance of damage to property. Notes con-
cerning personal safety are highlighted by a warning triangle; notes con-
cerning only damage to property are not marked by a warning triangle.
Depending on the danger level, the warning notes are shown in decreas-
ing order of severity as follows:
DANGER
means that death or serious injuries will occur if the corresponding
preventive measures are not taken.
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2 Safety
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09.2018 / 1.0
WARNING
means that death or serious injuries can occur if the corresponding
preventive measures are not taken.
CAUTION
with a warning triangle means that slight injury and/or damage to
property can occur if the corresponding preventive measures are
not taken.
NOTICE
indicates an important item of information about the product itself
or how the product should be handled, to which special attention
should be paid.
CAUTION
without a warning triangle means that damage to property can occur if
the corresponding preventive measures are not taken.
ATTENTION
indicates that an undesirable event or condition can occur if the corres-
ponding instructions are not observed.
If several danger levels occur, the warning note for the respectively
highest level will always be used. If a warning note with a warning tri-
angle warns against personal injury, a warning against damage to prop-
erty may be included in the same warning note.
2.4
Warning symbols on the device
Symbol
Explanation of the warning symbols on the device
Observe the operating manual
2.5
Intended use
Observe the following:
WARNING
ARCA positioners may be used only for the applications specified
in the associated technical documentation. Proper transport, stor-
age, erection, assembly, installation, commissioning, operation and
maintenance are required for trouble-free and safe operation. The
permissible environmental conditions must be maintained. Notices
in the associated documentation must be observed.
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Series 824
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2.6
Improper modifications to the device
WARNING
Modification to the device
Modifications and repairs to the device can result in danger to the per-
sonnel, plant and environment!
►Modify or repair the device only as described in the instructions de-
livered with the device. The manufacturer's warranty and the product
approvals are rendered null and void if this is ignored.
2.7
Qualified Personnel
The device may be set up and operated only in conjunction with this
documentation. Commissioning and operation may be performed only by
qualified personnel. Qualified personnel within the meaning of the
safety instructions in this documentation are persons authorised to com-
mission, earth and mark devices, systems and circuits according to the
safety standards.
Qualified persons are those who are familiar with the erection, assembly,
commissioning and operation of the product. These persons have the
following qualifications:
▪They are authorised and have been trained or instructed to operate
and maintain devices and systems in accordance with the safety
standards for electrical circuits, high pressures and aggressive and/
or hazardous media.
▪They have been trained or instructed in the care and use of appropri-
ate safety equipment in accordance with safety standards.
2.8
Laws and regulations
The test certificates, regulations and laws applicable to your country
must be observed for the connection, assembly and operation.
These are, for example:
▪The Work Health and Safety Regulations
2.9
Liability disclaimer
We have checked the contents of this instruction for correspondence to
the device described. Nevertheless, deviations cannot be ruled out;
therefore we cannot give any guarantee for full correspondence. The
specifications are checked regularly and any necessary corrections will
be included in subsequent editions.
2.10
Conformity to European directives
The CE mark on the device indicates its conformity to the following
European directives:
2014/30/EU
EMC
Directive of the European Parliament and of the
Council on the approximation of the Laws of the
Member States regarding electromagnetic com-
patibility.
ARCA Regler GmbH
2 Safety
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2006/42/EC
Directive of the European Parliament and of the
Council on Machinery (Machinery Directive for
short)
The applied standards can be found in the EC Declaration of Conformity
for the device.
3 Transport, storage and packaging
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Series 824
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3
Transport, storage and packaging
3.1
Transport
Transport at a temperature lower than -40 °C or higher than +80 °C is
not permissible.
3.2
Storage
NOTICE
Improper storage!
There is a danger of the product no longer functioning if it is stored im-
properly.
►Storage at a temperature lower than -40 °C or higher than +80 °C is
not permissible.
►It must be stored in roofed-over storage places and that are weather-
proof.
Openings are sealed with suitable means to prevent the ingress of dirt.
These should be removed by technical personnel at the place of installa-
tion.
CAUTION
Inadequate protection during storage
The packaging offers only limited protection against moisture and infiltra-
tion!
►Provide additional packaging if necessary.
3.3
Packaging
The product is packed in a PE film inside the outer packaging (card-
board box, wooden crate, pallet, lattice box).
If the packaging, in particular the PE film, has been opened, the product
must be stored immediately in a heated room.
The product must be packed in weatherproof or seaworthy packaging for
transport by ship, rail or truck.
ARCA Regler GmbH
4 Nameplate
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4
Nameplate
1
2
3
4
5
7
6
8
9
1 Manufacturer
2 Device name
3 Type
4 Observe the operating manual
5 Protection class
6 Nominal signal range
7 Auxiliary energy (supply air)
8 Auxiliary energy (voltage)
9 Fabrication number
Illustration 1: Nameplate
5 Type key
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Series 824
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5
Type key
824.
P
0
0
0
-
0
0
0
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
1 Series
824.
2 Operating mode
P
pneumatic
E
electro-pneumatic, not explosion-proof
3 Output signal
1
single-acting
2
double-acting
4 Input signal
0
0.2 - 1.0 bar
1
4 - 20 mA
2
0 - 20 mA
3
0.2 - 0.6 bar
4
0.6 - 1.0 bar
5
4 - 12 mA
6
12 - 20 mA
7
0 - 10 mA
8
10 - 20 mA
5 For lifting / turning movement
0
Stroke ≥ 20 mm
1
Stroke < 20 mm
3
Angle of rotation 90°
4
Angle of rotation 60°
6 Auxiliary pneumatic equipment
0
without
1
Manometer block
7 Limit switches
0
without
1
inductive, standard design SJ3.5N
2
inductive, safety circuit SJ3.5SN
3
inductive, direct-switching SJ3.5E2
8 Feedback
0
none
1
./.
2
Potentiometer
3
Position transducer 3-wire
4
Position transducer 2-wire
ARCA Regler GmbH
5 Type key
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Example of type designation
824.E110-100
Positioner 824 – electro-pneumatic, not explosion-proof – single-action –
input signal 4 - 20 mA – for stroke ≥ 20 mm – with manometer block –
without limit value switch – without feedback
6 Exploded view
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Series 824
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6
Exploded view
Illustration 2: Detail drawing
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7 Parts list
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7
Parts list
7.1
Positioner
Item
Name
1
Mounting block
2
Control bushing
3
O-ring
4
Plug
5
Bayonet clips
6
Spring
7
Control piston
8
Piston lever
9
Diaphragm chamber
10
Spring suspension
11
Washer
12
Cylinder head bolt
13
Stop screw
14
Washer
15
Hex nut
16
Washer
17
Hex nut
18
Grip ring
19
Cylinder head bolt
20
Shaft
21
Circlip
22
Gear segment
23
Washer
24
Cam plate
25
Position indicator
26
Washer
27
Cylinder head bolt
28
Return plate
29
Return lever
30
Circlip
31
Zero point setting screw
32
Range setting screw
33
Shaft
34
Circlip
35
Ball bearing
36
Washer
37
Circlip
38
Changeover switch
39
O-ring
40
Cylinder head bolt
41
O-ring
42
Sealing plate
43
Cylinder head bolt
44
I/P module (standard)
45
Terminal set
46
Cylinder head bolts
47
Cable gland
48
Cover
49
Spacer screw
50
Spacer screw
51
Cover
7 Parts list
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52
Cylinder head bolt
53
Screw plug
54
Earthing block
55
Lug
56
Spring lock washer
57
Cylinder head bolt
58
Earthing block
59
Lug
60
Spring lock washer
61
Cylinder head bolt
62
Control wire
63
Plain bearing
64
Screw plug
65
Screw plug
66
Dirt strainer
80
Limit value transmitter module
81
Cylinder head bolt
82
Cylinder head bolt
83
Washer
84
Cylinder head bolt
85
Limit value transmitter
86
Vane
87
Terminal set
90
Feedback module
91
Potentiometer
92
Position transducer
93
Washer
94
Cylinder head bolt
100
O-ring
101
Manometer block
103
Cylinder head bolt
105
O-ring
106
Mounting block
107
O-ring
108
I/P module (pressure-resistant)
109
Cylinder head bolt
110
O-ring
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8 Description
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8
Description
8.1
Function and structure
▪The positioner operates in accordance with the force comparison
principle and controls the position of actuators proportionally. The
signal air pressure at the input is converted into force by a diaphragm
in the diaphragm chamber (9) and compared with the return force of
the spring (6). At force equilibrium the positioner is in the steady
state. If the input pressure increases, the piston lever (8) is deflected
upwards so that the piston (7) is also raised. Supply air now flows via
the output into the pneumatic actuator, as a result of which it is
moved (downwards in the case shown). The pretension of the return
spring (6) is thereby increased via the lifting or rotary lever, the cam
plate (24) and the return lever (204). This takes place until the spring
force and the diaphragm are in equilibrium (steady state). Actuator
stroke and input signal pressure are thus correlated in accordance
with the cam plate contour. If the input signal falls, this has the re-
verse effect on the valve stroke. The piston moves downwards, shuts
off the supply air and vents the pneumatic actuator via the vent hole
in the piston bushing of the positioner. As a result of this the actuator
changes its position towards the original position.
▪The functional sequence is the same with the double-action position-
ers, however the piston now controls two outputs. If the piston is de-
flected upwards it vents the output y2, while supply air flows in
through the output y1. The relationships at the outputs y1 and y2 are
the opposite when the piston lever moves downwards.
▪The actuation speed of the cylinder can be regulated in both direc-
tions by additionally adjustable throttle check valves in the actuation
signal lines Y1 and Y2 to be provided by the customer. As a result of
this a more or less strong fixation of the cylinder actuator is also
achieved asymmetrically.
▪In the case of the I/P module the impressed DC current I flows
through a fixed coil (44.1) as the input signal. This magnetises a
magnetically soft yoke (44.2). The field lines of this system exposed
at an air gap (44.3) exert a force proportional to the input current on
a small magnet (44.4) that is made of a highly coercive alloy. To-
gether with a baffle plate (44.5) the small magnet forms the rotary
system of the device. The impact plate covers a nozzle (44.6) to a
greater or lesser extent, the air from the nozzle exerting a resetting
force that is in equilibrium with the force at the magnet. The nozzle is
provided via a throttle (44.7) with air from the output of the control
part (44.8), which is influenced by the change in pressure in front of
the nozzle. Thus a linear correlation between the electrical input sig-
nal and the pneumatic output signal exists.
▪Split ranges are used if, for example, two actuators with positioners
in different control ranges are to be controlled by one controller. One
valve would operate with the input signal range 0.2 – 0.6 bar and the
other with the split range 0.6 – 1.0 bar. The split ranges differ by dif-
ferent springs, which are marked in colour.
ARCA Regler GmbH
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Series 824
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Illustration 3: Functional description
8.1.1
Cam plate
The cam plate (24) of the positioner has three characteristics, which are
designed for a 60° angle of rotation equivalent to a 100% stroke or a 90°
angle of rotation for a 90° opening angle with rotary valves. For the basic
version, the linear curve (no. 1 in fig. 1) is provided normally. The on/off
curve (no. 2) and the equal percentage curve (no. 3) are also shown in
this diagram.
Figs. 1 and 2 show how these curves affect the flow rate of valves with
different opening characteristics. The linear curve (no. 1) linearly assigns
the valve stroke to the input signal, i.e. the input signal is mapped dir-
ectly to the valve stroke so that the effect of the valve's own opening
characteristic is retained. The use of the curves (nos. 2 & 3) offers the
possibility to change the effect of valve characteristics.
Fig. 1
Fig. 2
Fig. 3
Valve characteristics
Flow characteristics
Flow characteristics
depending on the input signal
with various cam plates
with various cam plates and
equal-percentage valve cone
depending on the input signal
with various cam plates and
linear valve cone depending
on the input signal
ARCA Regler GmbH
9 Installation
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09.2018 / 1.0
9
Installation
Check whether the desired principle of operation - "normal" or "inverted"
- is set correctly. To do this, look at the rear side of the positioner and
check the setting. If it should be necessary to change the setting, refer to
the chapter [12.1] Normal / Inversion "Configuration".
9.1
Safety instructions for assembly
CAUTION
Improper installation
Improper installation can result in damage to the device, its destruction
or the impairment of its function.
Ascertain that the device shows no visible signs of damage each time
before installing it.
Ascertain that the process connections are clean and that suitable seals
and cable glands are used.
Install the device using suitable tools.
CAUTION
Mechanical impact
It is essential that the following sequence is observed during installation
in order to avoid injury or mechanical damage to the positioner/mounting
kit:
►Mechanically mount the positioner
►Connect the pneumatic auxiliary energy
►Connect the auxiliary electrical energy supply
►Carry out the commissioning procedure
ATTENTION
The device protection class becoming null and void
Damage to the device due to open or improperly closed housing. The
protection class specified on the nameplate is no longer guaranteed.
CAUTION
Humid environment/dry compressed air
If the environment is humid, mount the positioner in such a way that
there is no chance of the control axis freezing (getting stuck) at low am-
bient temperatures.
Make sure that water does not enter an open housing or threaded joint.
If the positioner cannot be immediately and permanently mounted and
connected on site, it is possible for water to enter.
In general, only dry compressed air may be used to operate the posi-
tioner. Also refer to the chapter [16.2] Data for the basic device. You
should therefore make use of the usual water separators. In extreme
cases it may be necessary to use an additional dryer. The use of dryers
is particularly important if you operate the positioner at low ambient tem-
peratures. When mounting on the valve block, set the purging air switch
above the pneumatic connections to the "OUT" position.
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Series 824
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9.2
Mounting a linear actuator
9.2.1
Installation according to DIN/IEC 534 T6 (NAMUR)
Refer also to fig. 5 "Installation 824/Namur":
▪Seal the actuation pressure output A36 (M8 thread) on the rear side of
the positioner with the blanking plug (53).
– Also refer to the chapter [10] Pneumatic connection.
▪Mount the spring wire (201) on the drive lever (200) in accordance
with fig. 4.
– NOTICE! The version ("N" or "I") is visible on the cam plate (24).
▪Mount the drive lever (200) on the stroke indicator using cylinder
head bolts (203).
▪Mount the stroke setting screw (205) with the washer (206) on the
pivot lever (204) using nut (207).
– NOTICE! Observe the stroke scale on the pivot lever (204)!
▪Mount the pivot lever (204) on the positioner using the nut, bolt and
spring lock washers (208-210).
▪Bolt the mounting plate (231) to the positioner with the spring lock
washers (234) and bolts (235).
▪Position the positioner against the actuator such that the stroke set-
ting screw (205) protrudes into the slot of the drive lever (200).
– Refer here to fig. 4.
▪Mount the complete positioner with mounting plate (231) on the cast
iron or pillar yoke according to fig. 5.
Cam plate N (normal)
Cam plate I (inverted)
Illustration 4: Drive lever
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9 Installation
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09.2018 / 1.0
Illustration 5: Installation 824/Namur
200
Drive lever
201
Spring wire
203
Cylinder head bolts
204
Pivot lever
205
Stroke setting screw
206
Washer
207
Hex nut
208
Hex screw
209
Hex nut
210
Washer
230
Stirrup bolts
231
Mounting plate
232
Spring lock washer
233
Hex screw
234
Spring lock washer
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Series 824
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235
Hex screw
236
Spring lock washer
237
Hex nut
9.2.2
Integrated mounting on actuators series 812
Mounting procedure (see illustrations below)
▪Mount the stroke driving pin (225) on the actuator stem and secure
with Loctite 601.
▪Seal the actuation pressure output A36 on the positioner with the
blanking plug (65).
– Remove the blanking plug (53) from the rear side of the device (if
fitted).
– Also refer to the chapter [10] Pneumatic connection.
▪Mount the stroke adjustment screw (222) on the pivot lever (211)
with the washer (217), nut (216), sliding washer (218), conical roller
(220) and circlip (221).
– NOTICE! Observe the stroke scale on the pivot lever (211)!
▪Mount the pivot lever (211) on the positioner using the nut, bolt and
spring lock washers (214-212).
▪Place the O-ring (224) in the groove in the adapter plate (250).
▪Position the positioner against the actuator such that the conical
roller (220) engages between the stroke drive pins (225) on the actu-
ator stem.
▪Bolt the positioner to the actuator yoke with the bolts (223) and
spring lock washers (226).
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Illustration 7: Assembly 824/812 side view
211
Pivot lever
212
Spring lock washer
213
Hex screw
214
Hex nut
216
Hex nut
217
Washer
218
Sliding washer
219
Spring
220
Conical roller
221
Circlip
222
Stroke setting screw
223
Cylinder head bolt
224
O-ring
225
Stroke driving pin
226
Spring lock washer
Illustration 8: Assembly 824/812 standard top view
9.2.3
Integrated mounting on actuators series 813
Mounting procedure (see illustrations below)
▪Mount the stroke driving pins (258) on the bracket (257) and secure
with Loctite 601.
▪Mount the bracket (257) on the actuator stem with the nut (259).
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9 Installation
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09.2018 / 1.0
▪Seal the actuation pressure output A36 on the positioner with the
blanking plug (65).
– Remove the blanking plug (53) from the rear side of the device (if
fitted).
– Also refer to the chapter [10] Pneumatic connection.
▪Mount the adapter (252) on the positioner with the grub screw (253).
▪Mount the adapter plate (250) and O-ring (254) on the positioner with
the screws (251).
▪Mount the stroke adjustment screw (222) on the pivot lever (211)
with the washer (217), nut (216), sliding washer (218), conical roller
(220) and circlip (221).
– NOTICE! Observe the stroke scale on the pivot lever (211)!
▪Mount the pivot lever (211) on the positioner using the nut, bolt and
spring lock washers (214-212).
▪Place the O-ring (255) in the nut in the actuator yoke.
▪Position the positioner against the actuator such that the conical
roller (220) engages between the stroke drive pins (258) on the actu-
ator stem.
▪Bolt the positioner to the actuator yoke with the bolts (256).
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Illustration 9: Adapter plate / pivot lever
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Illustration 10: Assembly 824/813 side view
211
Pivot lever
212
Spring lock washer
213
Hex screw
214
Hex nut
216
Hex nut
217
Washer
218
Sliding washer
219
Spring
220
Conical roller
221
Circlip
222
Stroke setting screw
250
Adapter plate
251
Cylinder head bolt
252
Adapter
253
Grub screw
254
O-ring
255
O-ring
256
Cylinder head bolt
257
Bracket
258
Stroke driving pin
259
Hex nut
Illustration 11: Installation 824/813 top view
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Illustration 12: Photo - assembly 824/813
9.3
Installation of the swivel actuator
9.3.1
Installation according to VDI/VDE 3845
▪Insert the coupling (265) into the actuator adapter (264) (not included
in the scope of delivery) and secure with the screw (266).
– Secure the screw (266) with Loctite 601!
▪Mount the yoke (260) (not included in the scope of delivery) on the
actuator with the screws (261).
▪Mount the adapter plate (268) on the positioner with the screws
(267).
– Secure the screw (267) with Loctite 601!
▪Mount the positioner on the yoke (260) with the screws (263) and
spring lock washers (262).
Illustration 13: Installation 824/VDI-VDE 3845 top view
261
Cylinder head bolt
262
Spring lock washer
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263
Cylinder head bolt
265
Coupling
266
Cylinder head bolt
267
Cylinder head bolt
268
Adapter plate
260
Yoke
264
Actuator adapter
Items 260 and 264 are part of the scope of delivery only when mounting
on an ARCA actuator from the series 840. In the case of third-party actu-
ators the yoke (260) can be supplied on request!
9.3.2
ARCA mounting on swivel actuator series 840 (external piping)
▪Insert the coupling (271) into the actuator hub.
– NOTICE! Observe the positioning of the groove for the positioner,
danger of destruction!
▪Mount the yoke (272) on the actuator with the bolts (273).
▪In the case of the 844 actuator, additionally place the adapter plate
(270) between the yoke (272) and the actuator.
▪Mount the positioner on the yoke (272) with the screws (274).
Illustration 14: Assembly 824/840 side view
270
Adapter plate
271
Coupling
272
Yoke
273
Cylinder head bolt
274
Cylinder head bolt
9.3.3
Integrated mounting on actuators series 840
▪Insert the coupling (282) into the actuator hub.
– NOTICE! Observe the positioning of the groove!
▪Mount the mounting plate (280) and O-ring (281) on the actuator with
the screws (283).
– Omitted with actuator sizes 841 and 842.
▪Mount the transfer plate (285) and O-ring (284) on the actuator or on
the mounting plate (280) with the screws (286).
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▪Seal the actuation pressure output A36 on the positioner with the
blanking plug (63).
– Remove the blanking plug (53) from the rear side of the device (if
fitted).
– Also refer to the chapter [10] Pneumatic connection.
▪Mount the mounting strip (298) and O-ring (288) on the positioner
with the screws (299).
▪Mount the positioner with the mounting strip (298) installed on the
transfer plate (285) with the O-ring (287) and screws (300).
Illustration 15: Assembly 824/840, pipeless, side view
280
Mounting plate
281
O-ring
282
Coupling
283
Cylinder head bolt
284
O-ring
285
Transfer plate
286
Cylinder head bolt
287
O-ring
288
O-ring
298
Mounting strip
299
Cylinder head bolt
300
Cylinder head bolt
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10
Pneumatic connection
The assignment of the pneumatic connections is done in accordance
with the designation of the connection sign affixed to the side or affixed
inside the cover (51). Commercially available screw connections for cop-
per and stainless steel pipe or plastic hoses can be used.
In the case of versions with manometer block, the connections are loc-
ated on the manometer block.
▪With all electro-pneumatic versions the input E26 is to be sealed with
the blanking plug (64).
▪In the case of integrated positioner mounting (refer also to the
chapters [9.2.2] Integrated mounting on actuators series 812, [9.2.3]
Integrated mounting on actuators series 813 and [9.3.3] Integrated
mounting on actuators series 840) the output A36 is to be sealed with
a plug. The blanking plug (53) on the rear side of the positioner (illus-
tration: Rear side) is to be unscrewed and removed.
Rear side
single-acting
double-acting
Illustration 16: Pneumatic connection
11 Electrical connection
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11
Electrical connection
The electrical work is to be carried out under careful observation of the
safety instructions in the chapter [2] Safety.
Refer to the chapter [16] Technical Data for the individual electrical op-
tions!
▪Undo the screws (52) and remove the cover (51).
▪Feed the cable through the cable gland.
▪Connect in accordance with the terminal diagram or the details inside
the cover (51).
– NOTICE! Make sure the polarity is correct.
▪Activate the strain relief by tightening the cable glands (47).
▪The max. permissible connection data for the individual electrical
components are shown on the nameplate and must be observed!
11.1
I/P transducer
Illustration 17: IP transducer
11.2
Limit value transmitter
The limit value transmitter is equipped with two inductive proximity
switches (slot-type proximity switches), which are actuated by the infin-
itely adjustable vanes. The proximity switches can be supplied in three
different basic versions.
11.2.1
Normal version (2-wire, N)
The proximity switches according to EN 60947-5-6 (NAMUR) are 2-wire
inductive sensors whose signals only need to be amplified by down-
stream switching amplifiers (provided by the customer). Normally closed
(N) types are generally used.
Illustration 18: Limit value transmitter 2-wire N+SN
11.2.2
Safe design (2-wire, SN)
These proximity switches correspond to the normal version, but with an
additional function:
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In the event of an error message for the proximity switch, the switching
amplifier or the connecting cable, the output automatically enters the
safe "off" state (= logic 0). Normally closed (SN) types are generally
used.
Illustration 19: Limit value transmitter 2-wire N+SN
11.2.3
Direct switching version (3-wire, E2)
These proximity switches already contain an output amplifier and have
separate connections for the power supply and for the load. Plus-switch-
ing (E2) normally-open types are generally used.
Illustration 20: Limit value transmitter 3-wire E2
11.3
Position feedback
11.3.1
Feedback potentiometer
11.3.2
Position transducer 3-wire
11.3.3
Position transducer 2-wire
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12
Configuration
12.1
Normal / Inversion
▪Determine the required switch position and cam plate characteristic
from fig. 20.
– Refer also to the chapter [8.1.1] Cam plate.
Illustration 21: Table: Mode of operation
Check the configuration of the positioner and if necessary perform the
steps listed in the chapters [12.1.1] Changeover switch and [12.1.2] Select
cam plate.
▪Depressurise the positioner and switch it off!
12.1.1
Changeover switch
▪Loosen the screws (40) and remove the changeover switch (38) with
the O-ring (39).
▪Mount the changeover switch (38) in the desired position.
Changeover switch position "normal"
Changeover switch position "in-
verted"
(Rear side of device)
(Rear side of device)
Illustration 22: Changeover switch
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12.1.2
Select cam plate
▪Unhook the spring (6) from the return lever (29).
▪Loosen the screw (27).
▪Remove the position indicator (25) (versions for swivel actuators
only) and the cam plate (24) and mount in the desired position.
▪Hook the spring (6) into the return lever (29).
Illustration 23: Curve "1" normal
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13
Commissioning
13.1
Adjustment of zero point and stroke/angle of rotation
▪The adjustment is done in accordance with the flow chart below.
▪Measure the stroke or angle of rotation with a dial gauge or angle of
rotation measuring instrument respectively!
▪The equations produce the recommended values of the input vari-
ables E1 and E2.
– E1 = E (0%) ± (E (0%) x 1.05), max. 5% of control range
– E2 = E (100%) ± (E (100%) x 1.05), max. 5% of control range
Illustration 24: Zero point and stroke/angle of rotation adjustment chart
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13.2
Limit value transmitter
The limit contacts are normally adjusted so that a signal is present in
each of the end positions (open/closed). Both vanes can be infinitely ro-
tated so that intermediate positions can also be signalled. To ensure reli-
able switching, the switching point should be set approx. 2% before the
mechanical stop (open/closed). We recommend the valve position
"closed" for the limit value transmitter "A" and the valve position "open"
for the limit value transmitter "B", whose setting is described below for a
normally closed valve.
▪Loosen the screws (81).
▪Position the limit value transmitter (85) in the centre of the slots.
▪Tighten the screws (81).
▪Loosen the screw (82).
▪Coarse adjustment of the two vanes (86) with input signal at 0% and
100%.
▪Tighten the screws (82).
▪Apply a 2% input signal.
▪Loosen the screw (81) on the limit value transmitter "A".
▪Adjust vane "A" so that a signal is present at the limit value transmit-
ter "A".
▪Tighten the screws (81).
▪Apply a 98% input signal.
▪Loosen the screw (81) on the limit value transmitter "B".
▪Adjust the vane so that a signal is present at the limit value transmit-
ter "B".
▪Tighten the screws (81).
13.3
Position feedback
13.3.1
Feedback potentiometer
The rotary movement of the positioner shaft is transmitted to the poten-
tiometer (91) via a gear unit. The zero point and range setting must be
done on the downstream devices (not included in the scope of delivery).
13.3.2
Position transducer
The built-in position transducer (R/I) measures the change in resistance
of the feedback potentiometer and converts the input signal into the out-
put signal (0/4 - 20 mA). The zero point and range setting is done using
the screws provided for this purpose on the position transducer (92).
14 Service and maintenance
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14
Service and maintenance
Basic safety instructions
WARNING
Impermissible repair of the device
Repairs may be carried out only by authorised personnel.
WARNING
Impermissible accessories and impermissible spare parts
Damage to the device
►Use exclusively original accessories and original spare parts.
►Observe all relevant installation and safety instructions described in
the manuals for the device, accessories and spare parts.
WARNING
Improper connection following maintenance
Damage to the device
►Connect the device correctly following maintenance.
►Close the device after maintenance.
CAUTION
Penetration of moisture into the device
Damage to the device
▪Make sure that no moisture gets into the device during cleaning and
maintenance work.
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15
Retrofit / exchange / repair
A new nameplate must be requested following any modifications. Some
modules cannot be installed together in the positioner. Therefore it is es-
sential that you read the chapter [16] Technical Data for the individual
modules.
15.1
I/P module
15.1.1
Standard
▪Release the cables of the I/P module (44) from the terminals (45).
– if existent.
▪Loosen the screws (53).
▪Remove the I/P module (44) or sealing plate (41).
▪Insert the dirt strainers (66).
– if not existent.
▪Attach new I/P module (44).
▪The cable must be routed between the base plate (1) and the I/P
module (44)!
▪Tighten the screws (43).
▪Mount the terminal set (45).
– if not existent.
▪Insert the blanking plug (64).
– if not existent.
▪For the electrical connection see [11] Electrical connection.
▪For commissioning see [13] Commissioning.
15.2
Limit value switch
▪Release the cable of the limit value switch (85) from the terminals
(87).
– if existent.
▪Mount the gear segment wheel (22) if not already existing.
– Dismount the cam plate (24) in accordance with the chapter
[12.1.2] Select cam plate.
– Remove the disc (23).
– Attach the gear segment (22).
– Mount the cam plate (24) in accordance with the chapter [12.1.2]
Select cam plate.
▪Unscrew the spacer screw (50).
▪Attach the limit value module (80).
▪Tighten the spacer screw (50) and screw (84) with washer (83).
– NOTICE! The gear wheels must intermesh without play after-
wards!
▪For the electrical connection see [11] Electrical connection.
15 Retrofit / exchange / repair
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▪For commissioning see [13] Commissioning.
15.3
Feedback potentiometer and measuring transducer
▪Release the cables of the feedback potentiometer (91) and the
measuring transducer (92) from the terminals (45).
– if existent.
▪Mount the gear segment wheel (22) if not already existing.
– Dismount the cam plate (24) in accordance with the section
[12.1.2] Select cam plate.
– Remove the disc (23).
– Attach the gear segment (22).
– Mount the cam plate (24) in accordance with the section [12.1.2]
Select cam plate.
– Attach the feedback potentiometer and measuring transducer
module (90).
▪Tighten the screws (94) with washers (93).
– NOTICE! The gear wheels must intermesh without play after-
wards!
▪Mount the terminal set (45).
– if not existent.
▪For the electrical connection see [11] Electrical connection.
▪For commissioning see [13] Commissioning.
15.4
Manometer block
▪Loosen the pneumatic connections.
– if already mounted.
▪Unscrew the manometer block (101) if existent.
▪Mount the new manometer block (101).
▪Tighten the screws (103).
▪For pneumatic connection see [10] Pneumatic connection.
▪For the electrical connection see [11] Electrical connection.
▪For commissioning see [13] Commissioning.
15.5
Spring
▪Unhook the spring (6) from the return lever (29).
▪Unhook the spring (6) from the spring suspension (10).
▪Hook in the new spring (6).
▪For commissioning see [13] Commissioning.
15.6
Piston lever
▪Dismount the spring (6) in accordance with the chapter [15.5] Spring.
▪Loosen the nuts (16 & 17).
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▪Remove the circlip (18).
▪Loosen the screws (19).
▪Remove the piston lever (8).
▪Mount the new piston lever (8).
▪Further installation in the reverse order.
▪For commissioning see [13] Commissioning.
15.7
Complete diaphragm chamber
▪Dismount the piston lever (8) in accordance with the chapter [15.6]
Piston lever.
▪Loosen the screws (12).
▪Remove the diaphragm chamber (9).
▪Mount the new diaphragm chamber (9).
▪Further installation in the reverse order.
▪For commissioning see [13] Commissioning.
15.8
Control piston bushing and wire
▪Dismount the diaphragm chamber (9) in accordance with the chapter
[15.7] Complete diaphragm chamber.
▪Pull out the control piston (7).
▪Remove the bayonet clip (5) and protective cap (4).
▪Pull the control bushing downwards (2).
▪Mount the new control bushing (2) and new control piston (7) with a
new control wire (62).
▪Further installation in the reverse order.
▪For commissioning see [13] Commissioning.
16 Technical Data
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16
Technical Data
16.1
General data
Installation
on thrust actuators
ARCA-integrated or according to IEC 534-6
(NAMUR)
Stroke range 10 to 120 mm
on swivel actuators
ARCA-integrated or according to VDI/VDE 3845
Angle of rotation 90°
Housing material
Cast aluminium / plastic
Protection class
IP 54
Mounting position
arbitrary
Climate class
Operation
4K3, but -20 to +80 °C,
Low temperature version -40 to +80 °C
Storage
1K5, but -40 to +80 °C
Transport
2K4, but -40 to +80 °C
Vibration resistance
< 10g according to DIN 89011, recommended con-
tinuous operation range of the complete valve ≤ 3 g
CE mark
Conformity according to EU EMC directive 2014/30-
EU and Machinery Directive 2006/42/EC
Controller data
Gain
max. 100
Hysteresis
< 0.7 % of the control range
Response threshold
< 0.5 % of the control range
Linearity error
< 2 % of the control range
Draught dependence
< 0.2 % / 0.1 bar, type 824.P < 0.1 % / 0.1 bar
Dimensions
see data sheet
Weight
Type 824.P
approx. 1.8 kg
Type 824.E
approx. 2.0 kg
Manometer block
approx. 0.5 kg
Connections
electrical
0 to 2 cable glands M20 x 1.5 depending on the ver-
sion
pneumatically
externally piped
Y and Z: laterally G ¼ DIN 45141,
Special version ¼" NPT
pneumatically
internally piped
Z: laterally G ¼ DIN 45141, Y: at rear G 1/8
16.2
Data for the basic device
Pneumatic data
Supply air pres-
sure
1.4 to 6 barg
Air quality
Solids
Class 2 ISO 8573-1 (particle size ≤ 1 μm, particle density ≤
10 mg/m3 in the normal state)
Dew point
Class 2 ISO 8573-1 (-40 °C, at least 20 K below ambient
temperature, low temperature version < -50 °C)
Oil content
Class 2 ISO 8573-1 (≤ 0.1 mg/m3 at standard atmospheric
conditions)
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Air consumption
< 0.6 m3/h in the normal state, type 824.P < 0.5 m3/h in the
normal state in stationary operation
Flow rate
6 m3/h in the normal state at 1.4 barg
Electrical / pneumatic data for the base device
pneumatic
not explosion proof
Electrical
connection
[11.1] I/P transducer
Input signal
0.2 to 1 bar
0/4 to 20 mA
Split ranges
0.2 to 0.6 to 1 bar
0/4 to 10 / 12 to 20 mA
Load
resistor
170 Ώ
Required
load voltage
3.4 V
16.3
Electrical data for options – inductive limit value transmitter
Limit value transmitter N
824.P/Exxx-x1x
Normal version
2-wire technology in accordance with DIN 19234 (NAMUR),
for downstream switching amplifiers
2 slot-type initiators
Type SJ 3.5 N
Function
NC, normally closed
Switching difference
< 1 %
Control circuit
see downstream switching amplifier
EMC according to
EN 60947-5-2 and DIN 19234
Electrical connection
[11.2.1] Normal version (2-wire, N)
Limit value transmitter SN 824.P/Exxx-x2x
Safe design
2-wire technology according to DIN 19234 (NAMUR) for customer
provided
switching amplifier in safe design
2 slot-type initiators
Type SJ 3.5 SN
Function
NC, normally closed
Switching difference
< 1 %
Control circuit
see downstream switching amplifier
EMC according to
EN 60947-5-2 and DIN 19234
Electrical connection
[11.2.2] Safe design (2-wire, SN)
Limit value transmitter E2
824.P/Exxx-x3x
Direct-switching
3-wire technology with integrated switching amplifier
for direct switching
2 slot-type initiators
Type SB 3.5 E2
Function
NO, normally open
Switching difference
< 1 %
Operating voltage
10 to 30 V DC
perm. load current
100 mA
Electrical connection
[11.2.3] Direct switching version (3-wire, E2)
16 Technical Data
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16.4
Electrical data for options – potentiometer and position
feedback
Potentiometer
824.P/Exxx-xx2
Resistance
200, 500 or 1000 Ohm 4)
Characteristic deviation
< 2 % 5)
Internal capacitance Ci
3.5 pF
Internal inductance Li
10 mH
Electrical connection
[11.3.1] Feedback potentiometer
Position transducer 3L
824.P/Exxx-xx3
3-wire circuit
RWG, type 4522
Operating voltage
15 to 24 V DC
Output
4(0) - 20 mA, short-circuit proof
Current limitation
at approx. 28 mA
Load Ri
0 - 400 Ohm
Characteristic deviation
< 2 % 5)
Electrical connection
[11.3.2] Position transducer 3-wire
Position transducer 2L
824.P/Exxx-xx4
2-wire circuit
RWG, type TMT 136R
Supply voltage
DC 8.5 ... 36 V
Output
4 - 20 mA, short-circuit proof
Current limitation
at approx. 36 mA
Load Ri
1300 Ohm at 36 V DC
Characteristic deviation
< 2 % 5)
Electrical connection
[11.3.3] Position transducer 2-wire
1) Permissible ambient temperature for other circuits on enquiry.
2) Special version down to -40 °C (pressure dew point < -50 °C).
3) Special version NPT ¼".
4) Zero point and range setting must be done on the receiving device.
5) A deviation of up to 5% is possible, depending on the method of mounting the positioner or the stroke range.
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Disposal and recycling
WARNING
Operating media and auxiliary materials that are hazardous to
health
Danger to people and the environment!
►Wear suitable protective equipment
►If applicable, collect and dispose of rinsing medium or residual me-
dium. Particular attention is to be paid to dead spaces (pressure
compensation, bellows, etc.)
►Observe the legal regulations for the disposal of media that are haz-
ardous to health
ARCA products are modularly constructed and can be sorted by material
into the following components.
▪Electronic components
▪Metals
▪Plastics
▪Greases and oils
▪Packaging material
The general rules are:
▪greases and oils are usually water pollutants and must not be al-
lowed to escape into the environment
▪Dispose of dismantled materials properly or recycle the separate ma-
terials
▪Observe national disposal regulations