Burkert 8692 User manual

Quickstart
Type 8692 / 8693
Positioner / Process Controller
Positioner / Prozessregler
Positionneur / Régulateur de process

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2008 - 2014 Bürkert Werke GmbH
Quickstart 1411/04_EU-ML_00805803 / Original DE

3
1 QUICKSTART GUIDE .................................................................................4
1.1 Definition of the term 'Device' .................................................4
1.2 Symbols .......................................................................................5
2 AUTHORIZED USE ......................................................................................5
2.1 Restrictions .................................................................................5
3 BASIC SAFETY INSTRUCTIONS ..........................................................6
4 GENERAL INFORMATION ........................................................................7
4.1 Contact address ........................................................................7
4.2 Warranty ......................................................................................7
4.3 Information on the Internet ......................................................7
5 SYSTEM DESCRIPTION ............................................................................7
5.1 Functions .....................................................................................8
6 TECHNICAL DATA ........................................................................................9
6.1 Conformity ................................................................................... 9
6.2 Standards .................................................................................... 9
6.3 Licenses ......................................................................................9
6.4 Operating conditions ................................................................9
6.5 Rating plate ...............................................................................9
6.6 Mechanical data.......................................................................10
6.7 Pneumatic data ........................................................................10
6.8 Electrical data ...........................................................................11
7 OPERATION .................................................................................................. 12
7.1 Description of the operating and display elements .........12
7.2 Function of the keys ................................................................... 13
8 OPERATING STATES ...............................................................................14
8.1 Changing the operating state ...............................................14
8.2 Displays in the AUTOMATIC operating state ...................... 14
8.3 Master code ..............................................................................15
9 OPERATING LEVELS ............................................................................... 16
9.1 Switching between the operating levels ............................16
10 INSTALLATION ............................................................................................16
10.1 Installation of devices for the Ex area ........................................ 16
10.2 Safety instructions ...................................................................16
10.3 Installation on process valves, types 2103, 2300
and 2301 ........................................................................................... 17
10.4 Installation on process valves, series 26xx and 27xx ........... 18
10.5 Pneumatic connection ............................................................20
11 ELECTRICAL INSTALLATION ............................................................... 21
11.1 Safety instructions ...................................................................21
11.2 Electrical installation with circular plug-in connector ......22
11.3 Electrical installation with cable gland ................................27
11.4 Electrical installation of fluid quantity controller
Type 8750 .................................................................................28
12 PROFIBUS DP / DEVICENET..............................................................28
12.1 Electrical installation ...............................................................28
13 START-UP ...................................................................................................... 31
13.1 Safety instructions ...................................................................31
13.2 Starting-up Type 8692 ...........................................................31
13.3 Starting-up Type 8693 ..........................................................33
Contents
Type 8692, 8693
English

4
Quickstart guide
Type 8692, 8693
1 QUICKSTART GUIDE
The quickstart guide contains the most important information and notes
regarding the use of the device. A detailed description can be found
in the operating instructions for Type 8692/8693.
Keep the quickstart guide in a location which is easily accessible to
every user and make it available to every new owner of the device.
Important Safety Information!
Read Quickstart carefully and thoroughly. Study in particular the
chapters entitled "Basic safety instructions", and "Authorized use".
▶Quickstart must be read and understood.
The operating instructions can be found on the enclosed CD
and on the Internet at:
www.burkert.com
1.1 Definition of the term 'Device'
In these instructions, the term "device" always refers to the
Type 8692/8693.
14 SAFETY END POSITIONS .................................................................... 35
15 DISASSEMBLY OF TYPE 8692/8693 .............................................36
15.1 Disconnecting the pneumatic connections .......................36
15.2 Disconnecting electrical connections ................................37
15.3 Removing Type 8692/8693 ..................................................37
16 ACCESSORIES ...........................................................................................38
16.1 Communications software.....................................................38
16.2 USB interface ...........................................................................38
16.3 Download ..................................................................................38
17 TRANSPORT, STORAGE, DISPOSAL .............................................. 38
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Authorized use
Type 8692, 8693
2 AUTHORIZED USE
Non-authorized use of the positioner Type 8692 and the
process controller Type 8693 can be dangerous to people,
nearby equipment and the environment.
The device is designed to be mounted on pneumatic actuators of
process valves for the control of media.
▶In a potentially explosive area, Type 8692 and 8693 may be used
only in accordance with the specification on the separate Ex rating
plate. For the use, observe the ATEX manual with safety instruc-
tions for the Ex area.
▶Devices without a separate Ex rating plate may not be used in a
potentially explosive area.
▶Do not expose the device to direct sunlight.
▶A pulsating direct voltage (rectified alternating voltage without
smoothing) must not be used as the operating voltage.
▶Use according to the authorized data, operating conditions, and
conditions of use specified in the contract documents and operating
instructions. These are described in Chapter "6 Technical data".
▶Use the device only in conjunction with third-party devices and
components recommended and authorized by Bürkert.
▶In view of the large number of options for use, before installation,
it is essential to study and if necessary to test whether the device
is suitable for the actual use planned.
▶Correct transportation, storage and installation, as well as careful use
and maintenance are essential for reliable and faultless operation.
▶Use Type 8692 and 8693 only as intended.
2.1 Restrictions
If exporting the system/device, observe any existing restrictions.
1.2 Symbols
The following symbols are used in these instructions.
DANGER!
Warns of an immediate danger!
▶Failure to observe the warning will result in a fatal or serious injury.
WARNING!
Warns of a potentially dangerous situation!
▶Failure to observe the warning may result in serious injuries or
death.
CAUTION!
Warns of a possible danger!
▶Failure to observe this warning may result in a moderate or minor
injury.
NOTE!
Warns of damage to property!
Important tips and recommendations.
Refers to information in these operating instructions or in
other documentation.
→Designates a procedure which you must carry out.
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Basic safety instructions
Type 8692, 8693
3 BASIC SAFETY INSTRUCTIONS
These safety instructions do not make allowance for any
• Contingencies and events which may arise during the assembly,
operation, and maintenance of the devices.
• Local safety regulations – the operator is responsible for observing
these regulations, also in relation to the installation personnel.
Risk of injury from high pressure in the system/device.
▶Before working on the system or device, switch off the pressure
and vent/drain lines.
Risk of electric shock!
▶Before reaching into the device or the equipment, switch off the
power supply and secure to prevent reactivation.
▶Observe applicable accident prevention and safety regulations
for electrical equipment.
General hazardous situations.
To prevent injuries:
▶Ensure that the system cannot be activated unintentionally.
▶The device must only be operated when in a perfect condition
and in consideration of the operating instructions.
▶Installation and maintenance work may be carried out only by
authorized technicians with the appropriate tools.
▶ After an interruption in the electrical or pneumatic supply,
ensure that the process is restarted in a defined or controlled
manner.
▶The general rules of technology must be observed for applica-
tion planning and operation of the device.
To prevent damage to the device:
▶When unscrewing and screwing the housing jacket
(with transparent cap) in, do not hold the actuator but the elec-
trical connection housing of Type 8692/8693.
▶Do not supply the pilot air port with aggressive or flammable
media or fluids.
▶Do not physically stress the housing (e.g. by placing objects on
it or standing on it).
▶Do not make any external alterations to the housing of the
device. Do not paint housing parts or screws.
NOTE!
Electrostatic sensitive components/modules!
The device contains electronic components which react sensitively
to electrostatic discharge (ESD). Contact with electrostatically
charged persons or objects are hazardous to these components.
In the worst case scenario, they will be destroyed immediately or
will fail after start-up.
• Observe the requirements in accordance with DIN EN 61340-5-1
to minimize or avoid the possibility of damage caused by
sudden electrostatic discharge!
• Do not touch electronic components while the operating voltage
is switched on!
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System description
Type 8692, 8693
4 GENERAL INFORMATION
4.1 Contact address
Germany
Bürkert Fluid Control Systems
Sales Center
Christian-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. + 49 (0) 7940 - 10 91 111
Fax + 49 (0) 7940 - 10 91 448
E-mail: [email protected]
International
Contact addresses can be found on the final pages of the printed
operating instructions.
And also on the Internet at:
www.burkert.com
4.2 Warranty
The warranty is only valid if the Types 8692/8693 are used as intended
in accordance with the specified application conditions.
4.3 Information on the Internet
The operating instructions and data sheets for Types 8692/8693 can
be found on the Internet at:
www.burkert.com
5 SYSTEM DESCRIPTION
Positioner or
process controller
(pneumatic)
Actuator
Valve body
Process valve
(control valve)
Fig. 1: Structure, Type 8692/8693 with process valve
The positioner Type 8692 and the process controller Type 8693 are
electropneumatic position controllers for pneumatically actuated control
valves with single-acting or double-acting actuators.
Together with the pneumatic actuator the positioner and process
controller form an optical and functional unit.
The control valve systems can be used for a wide range of control
tasks in fluid technology and, depending on the application conditions,
different process valves from the Bürkert range can be combined with
the positioner or the process controller. Angle seat valves, straight seat
valves, control valves, diaphragm or ball valves are suitable.
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System description
Type 8692, 8693
Pilot air port
(Label: 1)
Exhaust air port
(Label: 3)
Electrical connection housing
(Connection option with circular plug-in
connector)
Transparent cap
(below control module with display
and keys)
Housing jacket
Additional exhaust air port
(Label: 3.1)
only for Types 23xx and 2103 with pilot-controlled control
system for a high air flow rate from actuator size ø 125 / 130
Air intake filter
Pressure limiting valve
Electrical connection housing
(Connection option with connection
terminals)
Fig. 2: Structure Type 8692/8693
5.1 Functions
Type 8692 - Positioner (position controller)
The position of the actuator (stroke) is regulated according to the
position set-point value. The position set-point value can be
specified by an external standard signal (or via field bus).
Type 8693 - Process controller
The process controller is linked to a control circuit. The position
set-point value of the valve is calculated from the process set-point
value and the process actual value via the control parameters
(PID controller). The process set-point value can be set by an
external signal.
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Technical data
Type 8692, 8693
6 TECHNICAL DATA
6.1 Conformity
Types 8692/8693 conform to the EC directives according to the EC
Declaration of Conformity.
6.2 Standards
The applied standards which are used to demonstrate compliance with
the EC Directives are listed in the EC-Type Examination Certificate and/
or the EC Declaration of Conformity.
6.3 Licenses
The product is approved for use in zone 2 and 22 in accordance
with ATEX directive 94/9/EC category 3GD.
Observe instructions on operation in an explosion-risk (Ex)
area. Observe the ATEX additional instructions.
The product is cULus approved. Instructions for use in the UL area
see chapter "6.8 Electrical data".
6.4 Operating conditions
WARNING!
Solar radiation and temperature fluctuations may cause mal-
functions or leaks.
▶If the device is used outdoors, do not expose it unprotected to
the weather conditions.
▶The permitted ambient temperature may not exceed the maxi-
mum value or drop below the minimum value.
Ambient temperature: The permitted temperature range is given
on the rating plate of the device.
Degree of protection
Evaluated by the manufacturer: Evaluated by UL:
IP65 / IP67 according to EN 60529 * UL Type 4x Rating *
* only if cables, plugs and sockets have been connected correctly and in
compliance with the exhaust air concept (see Chapter "10.5 Pneumatic
connection", page 20).
6.5 Rating plate
Explanation of the device-specific specifications on the rating
plate:
Example:
8692 -E3-...-0 PU02
Single act Pilot 3.0 24V
Pmax 7 bar
Tamb -10 - +55°C
S/N 1001
00123456
D-74653 Ingelfingen
Identification number; date
of manufacture (encoded)
Type; features of the type code applicable to UL
and ATEX
Maximum operating
pressure
Control function; pilot valve
Supply voltage pilot valve
Bar code
Serial number / CE mark
Max. ambient temperature
W15 MA
Fig. 3: Example of rating plate
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Technical data
Type 8692, 8693
6.5.1 UL additional label
Example:
Degree of protection
Circuit with limited power
Supply voltage device
Type 4X enclosure
NEC Class 2 only
Supply voltage: 24V
Fig. 4: UL additional label (example)
6.6 Mechanical data
Dimensions see data sheet
Housing material outside: PPS, PC, VA, interior:
PA 6; ABS
Sealing material NBR / EPDM
Stroke range valve spindle 3 ... 45 mm
6.7 Pneumatic data
Control medium Neutral gases, air
Quality classes as per ISO 8573-1
Dust content Quality class 7,
max. particle size 40 µm,
max. particle density 10 mg/m³
Water content Quality class 3,
max. pressure dew point - 20 °C
or min. 10°C below the lowest oper-
ating temperature
Oil content Quality class X: max. 25 mg/m3
Temperature range
control medium 0 ... + 50 °C
Pressure range
control medium 3 ... 7 bar
Air flow rate pilot valve 7 lN / min (for aeration and deaeration)
(QNn- value according to definition for
pressure drop from 7 to 6 bar absolute)
optional: 130 lN / min (for aeration
and deaeration) (only single-acting
connections)
Connections Plug-in hose connector ø 6 mm /
1/4" socket connection G1/8
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Technical data
Type 8692, 8693
6.8 Electrical data
WARNING!
Only circuits with limited power may be used for UL approved
components according to “NEC Class 2”.
Protection class 3 as per DIN EN 61140 (VDE 0140-1)
Connections Cable gland M16 x 1.5, SW22
(clamping area 5 ... 10 mm)
with connection terminals for cable cross-
sections 0.14 ... 1.5 mm² (24 V DC) or
circular plug-in connector (M12 x 1)
(24 V DC, PROFIBUS DP, DeviceNet)
Operating voltage 24 V DC ± 10 % - max. residual ripple 10 %
Power consumption < 5 W
Input data for actual value signal
4 ... 20 mA: Input resistance 180 Ω
Resolution 12 bit
Frequency: Measurement range 0 ... 1000 Hz
Input resistance 17 kΩ
Resolution 1‰ of measurement
value
Input signal > 300 mVss
Waveform sine, square, triangle
Pt 100: Measurement range -20 ... +220 °C
Resolution < 0.1 °C
Measurement current < 1 mA
Input data for set-point value signal
0/4 ... 20 mA: Input resistance 180 Ω
Resolution 12 bit
0 ... 5/10 V: Input resistance 19 kΩ
Resolution 12 bit
Analogue feedback
Max. current 10 mA
(for voltage output 0 ... 5/10 V)
Burden (load) 0 ... 560 Ω
(for current output 0/4 ... 20 mA)
Inductive
proximity switches 100 mA current limitation
Binary outputs galvanically isolated, PNP
Current limitation 100 mA, output is clocked if overload
occurs
Binary input galvanically isolated, PNP
0 ... 5 V = log "0", 10 ... 30 V = log "1"
inverted input in reverse order
(input current < 6 mA)
Communication
interface Direct connection to PC via USB adapter
with integrated interface driver
Communications
software Communicator
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Operation
Type 8692, 8693
7 OPERATION
7.1 Description of the operating and
display elements
Operating elements:
Abbreviated designation for the
displayed process value
Process value *
Unit of the displayed process
value
Designation for the function of
the keys
Right selection key
Arrow key , arrow down
Arrow key , arrow up
Left selection key
Display elements of the process level:
Save symbol
Symbol for position control
Symbol for process control
Symbol for the AUTOMATIC operating state
Other symbols are displayed according to the activated functions.
See operating instructions type 8692/8693
Fig. 5: Display elements of the process level; operating elements
EXIT ENTER
1
MAIN
ACTUATOR
X.TUNE
ADD.FUNCTION
INPUT
Submenu
Designation for the function
of the keys
Display elements of the
setting level:
Menu designation
Operating elements:
For description see "Fig. 5"
Fig. 6: Display elements of the setting level
The display is adjusted to the set functions and operating levels.
In principle, a distinction can be made between the display view for
the process level and the setting level.
When the operating voltage has been applied, the process level is
displayed.
* The process values which can be displayed in the AUTOMATIC
operating state depend on type.
A detailed description can be found in the operating instructions
for Type 8692/8693.
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Operation
Type 8692, 8693
7.2 Function of the keys
The function of the 4 keys in the control field differs depending
on the operating state (AUTOMATIC or MANUAL) and
operating level (process level or setting level).
The function of the keys is displayed in the gray text field which is
above the key.
Function of the keys on the process level:
Key Function of
the keys
Description of the
function
Operating
state
Arrow key MENU
OPN
(OPEN)
Manual opening of the
actuator MANUAL
Change the displayed value
(e.g. POS-CMD-TEMP-...) AUTOMATIC
Arrow key MENU
CLS
(CLOSE)
Manual closing of the
actuator MANUAL
Change the displayed value
(e.g. POS-CMD-TEMP-...) AUTOMATIC
Selection key MENU
MENU Change to the setting level
Note: Press key for
approx. 3 s.
AUTOMATIC
or MANUAL
Selection key MENU
AUTO Return to AUTOMATIC
operating state MANUAL
MENU
MANUAL Change to MANUAL
operating state AUTOMATIC
Function of the keys on the setting level:
Key Function of the
keys Description of the function
Arrow key Scroll up in the menus
MENU
+Increase numerical values
Arrow key Scroll down in the menus
MENU
–Decrease numerical values
MENU
←Change by one digit to the left; when
entering numerical values
Selection key MENU
EXIT (BACK) Return to the process level
Gradually return from a submenu
option
MENU
ESC Leave a menu
MENU
STOP Stop a sequence
Selection key MENU
ENTER
MENU
SELEC
MENU
OK
MENU
INPUT
Select, activate or deactivate a menu
option
MENU
EXIT (BACK) Gradually return from a submenu
option
MENU
RUN Start a sequence
MENU
STOP Stop a sequence
Tab. 1: Function of the keys
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Operating states
Type 8692, 8693
8 OPERATING STATES
Type 8692/8693 has 2 operating states:
AUTOMATIC and MANUAL.
AUTOMATIC
MENU CMD POS MANU
POS 0.0
In the AUTOMATIC operating state normal
controlled operation is implemented.
(The symbol for AUTOMATIC is
shown on the display. (A bar runs along
the upper edge of the display).
MANUAL
MENU OPN CLS AUTO
POS 0.0
In the MANUAL operating state the
valve can be manually opened or closed
via the arrow keys (key function
OPN and CLS ).
(The symbol for AUTOMATIC is
hidden. No bar running along the upper
edge of the display).
8.1 Changing the operating state
Change to MANUAL operating state
(only available for process value
display: POS, CMD, PV, SP)
MANU Press
Return to AUTOMATIC operating
state
AUTO Press
8.2 Displays in the AUTOMATIC
operating state
Type 8692 Description of the display Type 8693
MENU
CMD/POS
CMD MANU
POS 0.0
Actual position of the valve
actuator (0 ... 100%)
MENU SP/PV CMD MANU
POS
0.0
MENU POS TEMP MANU
CMD 0.0
Set-point position of the valve
actuator (0 ... 100%)
MENU POS TEMP MANU
CMD
0.0
MENU CMD
CMD/POS
TEMP
0.0

C
Internal temperature in the
housing of the type 8692/8693
( °C)
MENU CMD PV
TEMP
0.0

C
Process actual value
MENU TEMP SP MANU
PV
0.0
m3/min
Process set-point value
MENU PV PV (t) INPUT
SP
0.0
m3/min
Simultaneous display of the
set-point position and the
actual position of the valve
actuator (0 ... 100 %)
MENU
CMD/POS
POS MANU
0.0
SP
PV
0.0
m3/min
m3/min
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15
Operating states
Type 8692, 8693
Type 8692 Description of the display Type 8693
Graphical display of SP and PV
with time axis
MENU HOLD
SP / PV (t)
MENU HOLD
CMD / POS (t)
Graphical display of POS
and CMD with time axis
MENU HOLD
CMD / POS (t)
MENU
CMD/POS
CLOCK
INPUT
4.0
mA
Input signal for
set-point position
(0 ... 5/10 V / 0/4 ... 20 mA)
MENU
INPUT X.TUNE
INPUT
12:00
00
Thu. 01 . 09 . 11
CLOCK
Time, weekday and date
MENU
POS (t)
X.TUNE
INPUT
12:00
00
Thu. 01 . 09 . 11
CLOCK
MENU CLOCK
CMD/POS
RUN
X.TUNE
Automatic adjustment of the
positioner (position controller)
MENU CLOCK P.TUNE RUN
X.TUNE
Automatic optimization of the
process controller parameters
MENU X.TUNE P.LIN RUN
P.TUNE
Type 8692 Description of the display Type 8693
Automatic linearization of the
process characteristics
MENU P.TUNE
CMD/POS
RUN
P.LIN
MENU X.TUNE POS MANU
0.0
CMD
POS
0.0
Simultaneous display of the
set-point position and the
actual position of the valve
actuator (0 ... 100 %)
MENU P.LIN SP/PV MANU
0.0
CMD
POS
0.0
8.3 Master code
Operation of the device can be locked via a freely selectable user
code. In addition, there is a non-changeable master code with which
you can perform all operator actions on the device. This 4-digit master
code can be found on the last pages of this quickstart guide in the
Chapter "Master code".
If required, cut out the code and keep it separate from this quickstart
guide.
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Operating levels
Type 8692, 8693
9 OPERATING LEVELS
There is the process level and the setting level for the operation and
setting of type 8692/8693.
Process level:
The running process is displayed and operated on this level.
Operating state: AUTOMATIC – Displaying the process data
MANUAL – Manually opening and closing
the valve
Setting level:
The basic settings for the process
are made on the setting level. – Inputting the operating param-
eters
– Activating auxiliary functions
If the device is in the AUTOMATIC operating state when
changing to the setting level, the process continues running
during the setting.
9.1 Switching between the operating
levels
Change to the setting level MENU Press for
3 seconds
Return to the process level EXIT Press briefly
10 INSTALLATION
Only for positioners and process controllers without
pre-assembled process valve.
10.1 Installation of devices for the Ex area
When installing devices in the explosion-protected area, observe the
"ATEX manual for use in the Ex area" enclosed with the Ex-devices.
10.2 Safety instructions
DANGER!
Risk of injury from high pressure in the system/device.
▶Before working on the system or device, switch off the pressure
and vent/drain lines.
Risk of injury due to electrical shock!
▶Before reaching into the device or the equipment, switch off the
power supply and secure to prevent reactivation!
▶Observe applicable accident prevention and safety regulations
for electrical equipment!
WARNING!
Risk of injury from improper assembly!
▶Assembly may be carried out by authorized technicians only and
with the appropriate tools!
Risk of injury from unintentional activation of the system and
uncontrolled restart!
▶Secure system against unintentional activation.
▶Following assembly, ensure a controlled restart.
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17
Installation
Type 8692, 8693
10.3 Installation on process valves, types
2103, 2300 and 2301
NOTE!
When mounting on process valves with a welded body, follow
the installation instructions in the operating instructions for
the process valve.
The installation of the switch spindle and the form seal is
described in the operating instructions for Type 8692/8693.
You can find the instructions on the Bürkert homepage.
Types
8692/8693
Actuator Process valve
(example: Type 2103)
Valve body
Housing jacket
Electrical
connection housing
Fig. 7: Installation on process valve, example type 2301
During the installation, the collets of the pilot air ports must not
be fitted to the actuator.
→Aligning actuator with type 8692/8693:
1. Align the pilot air ports of the actuator with the
connection pieces of Type 8692/8693 (see "Fig. 8").
Connection piece
Pilot air ports
Fastening screws
max. 1.5 Nm
Fig. 8: Aligning the pilot air ports
2. Align the puck of the actuator with the guide rail of
Type 8692/8693 (see "Fig. 9")
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Installation
Type 8692, 8693
Guide rail
Puck
Fig. 9: Aligning the puck
NOTE!
Damage to the PCB or malfunction!
▶Ensure that the puck lies flat on the guide rail.
→Push Type 8692/8693 without turning it onto the actuator until no
gap is visible on the form seal.
NOTE!
To comply with the degree of protection IP65 / IP67, do not
fasten the fastening screws too tightly.
▶Maximum tightening torque: 1.5 Nm.
→Attach Type 8692/8693 to the actuator using the two side fas-
tening screws. In doing so, tighten the screws only hand-tight
(max. tightening torque: 1.5 Nm).
10.4 Installation on process valves, series
26xx and 27xx
The installation of the switch spindle is described in the
operating instructions for Type 8692/8693. You can find the
instructions on the Bürkert homepage.
→Place Type 8692/8693 onto the actuator. In doing so, align the
puck of the actuator with the guide rail of Type 8692/8693
(see "Fig. 10").
Guide rail
Puck
Fig. 10: Aligning the puck
NOTE!
Damage to the PCB or malfunction!
▶Ensure that the puck lies flat on the guide rail.
→Press Type 8692/8693 all the way down as far as the actuator and
turn it into the required position.
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19
Installation
Type 8692, 8693
Ensure that the pneumatic connections of Type 8692/8693
and those of the valve actuator are situated preferably verti-
cally one above the other (see "Fig. 11").
NOTE!
To comply with the degree of protection IP65 / IP67, do not
fasten the fastening screws too tightly.
▶Maximum tightening torque: 1.5 Nm.
→Attach Type 8692/8693 to the actuator using the two side fas-
tening screws. In doing so, tighten the screws only hand-tight
(max. tightening torque: 1.5 Nm).
Pilot air outlet 21
Pilot air outlet 22
Upper pilot air port
Lower pilot air port
Fastening screws
max. 1.5 Nm
Type
8692/
8693
Actuator
Fig. 11: Installation of the pneumatic connections, series 26xx and 27xx
→Observe the pneumatic connection that matches the desired
control function. See "Tab. 2: Pneumatic connection to actuator".
→Establish the pneumatic connection between Type 8692/8693
and the actuator.
NOTE!
Damage or malfunction due to ingress of dirt and moisture!
▶To comply with the degree of protection IP65 / IP67, connect the
pilot air outlet which is not required to the free pilot air port of the
actuator or seal with a plug.
"In rest position" means that the pilot valves of Type 8692/
8693 are isolated or not actuated.
If the ambient air is humid, a hose can be connected between
pilot air outlet 22 of the positioner / process controller and the
unconnected pilot air port of the actuator for control function
A or control function B.
As a result, the spring chamber of the actuator is supplied with
dry air from the vent duct of Type 8692/8693.
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20
Installation
Type 8692, 8693
Control function Pneumatic connection Type 8692, 8693
with actuator
Pilot air
outlet
Types 8692
and 8693
Pilot air port actuator
A
Process valve
closed in rest
position
(by spring
force)
21
lower pilot air port of the
actuator
22
should be connected to
the upper pilot air port of
the actuator
B
Process valve
open in rest
position
(by spring
force)
21
upper pilot air port of the
actuator
22
should be connected to
the lower pilot air port of
the actuator
I
Process valve
closed in rest
position
21
lower pilot air port of the
actuator
22
upper pilot air port of the
actuator
Process valve
open in rest
position
21
upper pilot air port of the
actuator
22
lower pilot air port of the
actuator
Tab. 2: Pneumatic connection to actuator
10.5 Pneumatic connection
DANGER!
Risk of injury from high pressure in the system/device.
▶Before working on the system or device, switch off the pressure
and vent/drain lines.
Observe the following for the proper functioning of the
device:
▶The installation must not cause back pressure to build up.
▶To make the connection, select a hose with sufficient
cross section.
▶Design the exhaust air line in such a way that no water or
other liquid can get into the device through the exhaust
air port (3 or 3.1).
Exhaust air concept:
▶In compliance with the degree of protection IP67, an
exhaust air line must be installed in the dry area.
▶Always maintain an applied control pressure of at least
0.5 ... 1 bar above the pressure which is required to
move the pneumatic actuator to its end position.
This ensures that the control behavior is not negatively
affected in the upper stroke range on account of too little
pressure difference.
▶During operation, keep the fluctuations of the control
pressure as low as possible (max. ±10 %).
If fluctuations are greater, the control parameters mea-
sured with the X.TUNE function are not optimum.
English