Samson 3730-6 Service manual

Series 3730
Electropneumatic Positioner
Type 3730-6
with HART®communication and pressure sensors
Mounting and
Operating Instructions
EB 8384-6 EN (1300-1623)
Firmware version 1.01
Edition February 2012
Fig. 1 · Type 3730-6

2EB 8384-6 EN
DANGER!
indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING!
indicates a hazardous situation which, if not
avoided, could result in death or serious
injury.
NOTICE
indicates a property damage message.
Note: Supplementary explanations, informa-
tion and tips
Definitions of the signal words used in these instructions

Contents Page
1 Important safety instructions . . . . . . . . . . . . . . . . . . . . . . 6
2 Article code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Design and principle of operation. . . . . . . . . . . . . . . . . . . . 8
3.1 Safety function (SIL) . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Valve diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Flow rate calculation. . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Type of application . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5.1 Configuration using TROVIS-VIEW 4 . . . . . . . . . . . . . . . . . . 12
3.6 Additional equipment . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.7 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Attachment to the control valve – Mounting parts and accessories . . . 20
4.1 Direct attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.1 Type 3277-5 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.2 Type 3277 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2 Attachment according to IEC 60534-6 (NAMUR) . . . . . . . . . . . . 26
4.3 Attachment to Type 3510 Micro-flow Valve with Type 3271-5 Actuator . 28
4.4 Attachment to rotary actuators . . . . . . . . . . . . . . . . . . . . . 30
4.4.1 Heavy-duty version . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5 Reversing amplifier for double-acting actuators . . . . . . . . . . . . . 34
4.6 Attaching an external position sensor. . . . . . . . . . . . . . . . . . 34
4.6.1 Mounting the position sensor with direct attachment. . . . . . . . . . . 34
4.6.2 Mounting the position sensor with attachment according to IEC 60534-6 36
4.6.3 Mounting the position sensor to Type 3510 Micro-flow Valve . . . . . . 37
4.6.4 Mounting the position sensor to rotary actuators . . . . . . . . . . . . 38
4.7 Mounting the leakage sensor. . . . . . . . . . . . . . . . . . . . . . 39
4.8 Attaching positioners with stainless steel housings. . . . . . . . . . . . 40
4.9 Air purging function for single-acting actuators . . . . . . . . . . . . . 40
4.10 Required mounting parts and accessories. . . . . . . . . . . . . . . . 41
5 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.1 Pneumatic connections . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.1.1 Signal pressure gauges . . . . . . . . . . . . . . . . . . . . . . . . 45
5.1.2 Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.1.3 Signal pressure (output) . . . . . . . . . . . . . . . . . . . . . . . . 46
5.2 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.2.1 Switching amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . 48
EB 8384-6 EN 3
Contents

5.2.2 Establishing communication . . . . . . . . . . . . . . . . . . . . . . 49
6 Operator controls and readings . . . . . . . . . . . . . . . . . . . . 52
6.1 Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.2 HART®communication . . . . . . . . . . . . . . . . . . . . . . . . 54
6.3 Dynamic HART®variables . . . . . . . . . . . . . . . . . . . . . . . 54
7 Start-up – Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.1 Defining the valve closed position . . . . . . . . . . . . . . . . . . . 56
7.2 Setting the volume restriction Q . . . . . . . . . . . . . . . . . . . . 57
7.3 Adapting the display. . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.4 Limiting the signal pressure. . . . . . . . . . . . . . . . . . . . . . . 57
7.5 Checking the operating range of the positioner . . . . . . . . . . . . . 58
7.6 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
7.6.1 MAX – Initialization based on maximum range . . . . . . . . . . . . . 60
7.6.2 NOM – Initialization based on nominal range . . . . . . . . . . . . . 61
7.6.3 MAN – Initialization based on a manually selected OPEN position . . . 62
7.6.4 MAN2 – Initialization based on manually selected end positions. . . . . 64
7.6.5 SUB – Substitute calibration . . . . . . . . . . . . . . . . . . . . . . 65
7.6.6 Tuning the KP input filter . . . . . . . . . . . . . . . . . . . . . . . . 68
7.7 Zero calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.8 Settings for on/off valves . . . . . . . . . . . . . . . . . . . . . . . 69
7.9 Reset to default values . . . . . . . . . . . . . . . . . . . . . . . . . 71
8 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.1 Enabling and selecting parameters . . . . . . . . . . . . . . . . . . 74
8.2 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8.2.1 Automatic and manual modes . . . . . . . . . . . . . . . . . . . . . 75
8.2.2 Fail-safe position (SAFE) . . . . . . . . . . . . . . . . . . . . . . . . 76
8.3 Malfunction/Failure . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8.3.1 Confirming error messages . . . . . . . . . . . . . . . . . . . . . . 77
9 Adjusting the limit switch . . . . . . . . . . . . . . . . . . . . . . . 78
9.1 Retrofitting an inductive limit switch. . . . . . . . . . . . . . . . . . . 80
10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
11 Servicing explosion-protected devices . . . . . . . . . . . . . . . . . 81
12 Firmware update (serial interface) . . . . . . . . . . . . . . . . . . . 81
13 Maintenance, calibration and work on equipment . . . . . . . . . . . 82
14 Code list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4EB 8384-6 EN
Contents

15 Dimensions in mm . . . . . . . . . . . . . . . . . . . . . . . . . . 109
15.1 Fixing levels according to VDI/VDE 3845 (September 2010) . . . . . 110
16 Valve characteristic selection . . . . . . . . . . . . . . . . . . . . . 111
Certificates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
EB 8384-6 EN 5
Contents

1 Important safety instructions
For your own safety, follow these instructions concerning the mounting, start-up and opera-
tion of the positioner:
4The positioner is to be mounted, started up or operated only by trained and
experienced personnel familiar with the product.
According to these Mounting and Operating Instructions, trained personnel refers to
individuals who are able to judge the work they are assigned to and recognize
possible dangers due to their specialized training, their knowledge and experience as
well as their knowledge of the applicable standards.
4Explosion-protected versions of this positioner may only be operated by personnel
who have undergone special training or instructions or who are authorized to work
on explosion-protected devices in hazardous areas. Refer to section 11.
4Any hazards that could be caused by the process medium, the operating pressure, the
signal pressure or by moving parts of the control valve are to be prevented by means
of the appropriate measures.
4If inadmissible motions or forces are produced in the actuator as a result of the supply
pressure, the supply pressure must be restricted by means of a suitable supply
pressure reducing station.
To avoid damage to any equipment, the following also applies:
4Do not operate the positioner with the back of the positioner/vent opening facing up-
wards.
The vent opening must not be sealed when the positioner is installed on site
4Proper shipping and appropriate storage are assumed.
4Do not ground electric welding equipment near to the positioner.
Note: The device with a CE marking fulfills the requirements of the Directives 94/9/EC
(ATEX) and 89/336/EEC (EMC).
The Declaration of Conformity is available on request.
6EB 8384-6 EN
Important safety instructions
Vent opening

2 Article code
Positioner Type 3730-6- xxxxxx x 0 x x 0 x 0 0
With HART®communication and pressure sensors
Explosion protection
ATEX: II 2G Ex ia IIC/IIB T6; II 2D Ex tb IIIC T6 IP 66 110
IECEx: Ex ia IIC/IIB T6; Ex d[ia] IIC/IIB T6; Ex tD A21 IP 66 T 80°C 111
GOST: 1Ex ia IIC T6 X, DIP A21 Ta80°C, IP 66 113
ATEX: II 3G Ex nA II T6; II 3G Ex ic IIC/IIB T6; II 3D Ex tc IIIC T 80°C IP 66 810
IECEx: Ex nA II T6; Ex nL IIC/IIB T6; Ex tD A22 IP 66 T 80°C 811
GOST: Ex nA II T6, Ex nL IIC T6, DIP A22 Ta80°C, IP 66 813
Options (additional equipment)
Inductive limit switch Without
With SJ2-SN
With SJ2-S1N
0
1
2
0
Venting function Without
Solenoid valve 24 V DC
Forced venting 24 V DC
0
1
2
Additional equipment Without
Position transmitter
Leakage sensor
Binary input
0
1
2
3
0
External position sensor Without
Including 10 m connecting cable
Prepared for connection, without sensor
0
1
2
1
Emergency shutdown 3.8 mA
4.4 mA
0
1
Housing material
Standard aluminum 1
Stainless steel 1.4581 2
Special applications
None 0
Compatible with paint 1
Exhaust air connection with ¼–18 NPT thread, back of positioner housing sealed 2
Attachment according to VDI/VDE 3847 6
Article code
EB 8384-6 EN 7

3 Design and principle of
operation
The electropneumatic positioner is attached
to pneumatic control valves. It is used to as-
sign the valve stem position (controlled vari-
able x) to the control signal (reference vari-
able w). The input signal received from a
control system is compared to the travel or
rotational angle of the control valve, and a
pneumatic signal pressure (output variable
y) is produced.
The positioner basically consists of an elec-
trical travel sensor system (2), an analog i/p
converter (6) with downstream air capacity
booster (7) and the electronics unit with a
microcontroller (5).
The standard positioner is fitted with three
binary contacts: A fault alarm output indi-
cates a fault to a control station and two
configurable software limit switches are
used to indicate the end positions of the
valve.
The valve position (x) is transmitted as a lin-
ear travel motion or an angle of rotation by
the pick-up lever and travel sensor (2) to an
analog PD controller (3). Simultaneously, an
A/D converter (4) transmits the position of
the valve to the microcontroller (5). The PD
controller compares this valve position to the
4 to 20 mA DC control signal supplied by
the controller after it has been converted by
the A/D converter (4). In case of a system
deviation, the actuator (1) is either vented or
filled with more air by changes to the i/p
converter (6). This causes the valve plug to
adopt the position corresponding to the ref-
erence variable (w).
The supply air is supplied to the air capacity
booster (7) and the pressure regulator (8).
An intermediate flow regulator (9) with fixed
settings is used to purge the positioner and
also guarantees trouble-free operation of the
air capacity booster. The output signal pres-
sure supplied by the booster can be limited
over the software. Both pressure sensors (23
and 24) monitors the supply pressure psand
the signal pressure pout.
The volume restriction Q (10) is used to opti-
mize the positioner.
The positioner is suitable for the following
types of attachment using the corresponding
accessories:
4Direct attachment to SAMSON
Type 3277 Actuator: Section 4.1
4Attachment to actuators acc. to
IEC 60534-6 (NAMUR): Section 4.2
4Attachment to Type 3510 Micro-flow
Valve: Section 4.3
4Attachment to rotary actuators acc. to
VDI/VDE 3845: Section 4.4
8EB 8384-6 EN
Design and principle of operation

EB 8384-6 EN 9
Design and principle of operation
1 Control valve
2 Travel sensor
3 PD controller
4 A/D converter
5 Microcontroller
6 i/p converter
7 Air capacity booster
8 Pressure regulator
9 Flow regulator
10 Volume restriction
11* Inductive limit switch
12* Solenoid valve
13* Analog position transmitter or binary input
14 Software limit switches A1/A2
15 Fault alarm output A3
16 LCD
17* Solenoid valve control
18* Galvanic isolation
19 D/A converter
20 Communication interface
21 HART®modulation
22* Binary input BE
23 Pressure sensor for supply pressure ps
24 Pressure sensor for signal pressure pout
25* Forced venting
* Option
%
S
mm
%
mm
PD
FSK
w
x
Q
GG
Serial
Interface 16
13
22
15
A2
A3
BE
A1
11
2
4
21
20
19
5
3
12 25
6
7
23
8
10
1
14
14
w
x
y
24 V DC
9
17 18
x
1)
>12 V
&
24
Fig. 2 · Functional diagram
x1) depending
on version
> 3.8 mA
> 4.4 mA

3.1 Safety function (SIL)
The safety function is based on the shutdown
of the i/p converter (6). This causes the
pneumatic actuator to be vented and the
valve to move to its fail-safe position.
Monitoring of the input signal
The i/p converter is switched off when the
input signal of the positioner at terminals
+11/–12 falls below 3.8 mA or 4.4 mA de-
pending on the positioner version (a signal
range of 4 to 20 mA is required). See
Fig. 18 on page 48.
Monitoring the voltage supply
(version with forced venting and solenoid
valve)
The i/p converter and the solenoid valve
(when installed) are shut down whenever the
voltage at terminals +81/–82 falls below
12 V (an input voltage of 24 V DC is re-
quired). See Fig. 18 on page 48.
When the i/p converter is switched off by
the monitoring of the input signal or the volt-
age supply, the fail-safe position
S is acti-
vated and is indicated on the positioner
display.
If required, the user can check the safety
function using the software.
For more details, refer to the Operating In-
structions EB 8389-1 EN on EXPERTplus
Valve Diagnostics.
3.2 Valve diagnostics
The EXPERTplus valve diagnostics are inte-
grated into the positioner. They provide in-
formation on the valve condition (see Ta-
ble 1) and generate status messages to
quickly pinpoint faults.
For more details, refer to the Operating In-
structions EB 8389-1 EN on EXPERTplus
Valve Diagnostics.
3.3 Flow rate calculation
Due to the differential pressure measurement
Dp out, EXPERTplus is able to calculate the
flow rate in a SAMSON Type 3241 or
Type 3251 Valve, provided all the parame-
ters regarding the medium and the process
have been defined in the positioner.
For more details, refer to the Operating In-
structions EB 8389-1 EN on EXPERTplus
Valve Diagnostics.
10 EB 8384-6 EN
Design and principle of operation

EB 8384-6 EN 11
Design and principle of operation
Diagnostic function
Control
valve
On/off
valve Diagnosis
Monitoring
Data logger • • Depending on trigger condition selected
Valve signature • Ä– Friction
– Supply pressure
– Actuator springs
– Pneumatic leakage
On/off valve – • – Breakaway time
– Transit time
– Final travel/angle value
Valve position histo-
gram
•Ä– Course of the manipulated variable range
– Manipulated variable range
Set point deviation
histogram
• • – Manipulated variable range limitation
– Seat leakage
– Positioner-valve linkage
– Max. set point deviation
Cycle counter histo-
gram
• • – Packing leakage
– Dynamic load factor
Leakage sensor • • – Seat leakage
Course of end posi-
tion
••– Course of end position
– Zero point shift
Dynamic tests
Valve dead band • • – Dead band
Partial stroke test
(PST)
••– Overshooting
– Dead time
– T86
– Settling time
Full stroke test (FST) • • – Overshooting
– Dead time
– T86
– Settling time
• Full scope of functions
ÄFunction is performed, but not analyzed
– Function is not performed
Table 1 · Diagnostic functions and diagnosis,
(refer to the Operating Instructions EB 8389-1 EN on EXPERTplus Valve Diagnostics for more details)

3.4 Type of application
There are two different types of application:
Control valve and On/off valve. The auto-
matic mode (AUTO) and manual mode
(MAN) can be selected in both types of
applications.
Operating
mode
Control valve On/off valve
Automatic The positioner
follows the refer-
ence variable (w)
continuously.
Discrete analysis
of the reference
variable (w).
Reading
on dis-
play
Valve position x
in %
Valve position x
in % and
O/C
(Open/Close) in
alternating se-
quence
Manual The positioner follows the manual
set point given over local operation.
The application type is set in Code 49 - h
(see section 7.8).
Note:
–
Depending on the application type, cer-
tain diagnostic functions cannot be per-
formed or analyzed. See Table 1.
–
Section 7.8 contains details on discrete
analysis of on/off valves.
–
In manual mode, an on/off valve can be
moved past 100 % of the nominal range
(with the closed position for ATO) or be-
low 0 % of the nominal range (with the
closed position for ATC). See section 7.1
for valve closed position.
3.5 Communication
The positioner is equipped with an interface
for HART®protocol (Highway Addressable
Remote Transducer) for communication pur-
poses. Data are transmitted in a superim-
posed frequency (FSK = Frequency Shift
Keying) on the existing signal loop for the 4
to 20 mA reference variable.
Either a HART®capable handheld commu-
nicator or a computer with FSK modem can
be used to establish communication and op-
erate the positioner.
3.5.1 Configuration using
TROVIS-VIEW 4
The positioner can be configured using the
TROVIS-VIEW 4 software for configuration
and operation. The positioner is equipped
for this purpose with an additional digital
SERIAL INTERFACE to allow a computer to
be connected over an adapter cable from
the RS-232 or USB port of the computer to
the positioner.
The TROVIS-VIEW 4 software enables the
user to easily set parameters in the
positioner and view process parameters on-
line.
Note: TROVIS-VIEW 4 is a free software
which can be downloaded from the
SAMSON website (www.samson.de >
Services > Software > TROVIS-VIEW).
12 EB 8384-6 EN
Design and principle of operation

3.6 Additional equipment
Inductive limit switch
In the version with inductive limit switch, the
rotary shaft of the positioner carries an ad-
justable tag which actuates the installed
proximity switch. The optional inductive limit
switch (11) is connected to A1, while the re-
maining software limit switch is connected to
A2.
Solenoid valve
If the operating voltage for the solenoid
valve (12) falls under 12 V, the supply pres-
sure for the i/p converter (6) is vented to the
atmosphere. The positioner can no longer
operate and the control valve moves to the
fail-safe position determined by the actua-
tor, independent of the reference variable.
In manual mode, the manual set point is
reset to 0 %. A different manual set point
must entered again.
Forced venting
If the voltage signal at terminals +81/–82
falls below 12 V, the i/p converter (6) is
de-energized. The positioner vents the actu-
ator, causing valve to move to the fail-safe
position determined by the actuator, inde-
pendent of the reference variable.
Analog position transmitter
The position transmitter (13) is a two-wire
transmitter and issues the travel sensor sig-
nal as a 4 to 20 mA signal processed by the
microcontroller. Since this signal is issued in-
dependent of the positioner’s input signal,
the momentary travel/angle of rotation is
controlled in real-time. Additionally, the po-
sition transmitter allows positioner faults to
be indicated over a signal current of
< 2.4 mA or > 21.6 mA.
Leakage sensor
By upgrading the positioner with a leakage
sensor, it is possible to detect seat leakage
when the valve is in the closed position. For
more details, refer to the Operating Instruc-
tions EB 8389-1 EN on EXPERTplus Valve
Diagnostics.
Binary input
The optional binary input can be configured:
4To connect a floating contact
4To connect a non-floating contact (0 to
24 V DC)
By selecting a certain function, one of the
following actions can be activated:
4Transmit switching state
The switching state of the binary input is
logged.
4Activate local write protection
After the first initialization, a local write
protection can be activated. While the
binary input is active, no settings can be
changed at the positioner. The positioner
cannot be re-initialized. Configuration
enabling over Code 3 is not active ( ).
4Start PST
The positioner start a single partial stroke
test. The test is performed with the set-
tings in Code 49 - d2 to Code 49 - d9
(refer to Operating Instructions
EB 8389-1 EN on EXPERTplus Valve Di-
agnostics).
4Move valve to safety set point
An on/off valve moves to the predeter-
EB 8384-6 EN 13
Design and principle of operation

mined safety set point when the
positioner is in automatic mode
(AUTO). This function is not performed in
the manual mode (MAN) or fail-safe
position mode (SAFE).
4Switch AUTO/MANUAL
The positioner changes from the auto-
matic mode (AUTO) to the manual
mode (MAN) or vice versa.
This function is not performed if the
positioner is in the fail-safe position
mode (SAFE).
4Start data logger
The data logger starts recording when
the binary input is activated (refer to Op-
erating Instructions EB 8389-1 EN on
EXPERTplus Valve Diagnostics).
4Reset diagnostics
Active tests and monitoring are stopped
and the diagnostic data is reset once.
Additionally, the external solenoid valve
function can be selected if a non-floating
contact is configured:
4External solenoid valve
The voltage for an external solenoid
valve is connected in parallel to terminals
+81/–82. This allows the switching state
of the solenoid valve to be monitored.
Note: The optional binary input can only be
configured using the operator software e.g.
TROVIS-VIEW 4. The switching state is
transmitted when the switch is closed by de-
fault.
External position sensor
In this version, only the sensor is mounted to
the control valve. The positioner is located
separately from the valve.
The connection of controlled variable (x) and
output variable (y) signals to the valve is es-
tablished by cable and piping for air.
14 EB 8384-6 EN
Design and principle of operation

3.7 Technical data
EB 8384-6 EN 15
Design and principle of operation
Type 3730-6 Positioner (technical data in test certificates additionally apply for explosion-protected devices)
Travel, adjustable Direct attachment to Type 3277: 3.6 to 30 mm
Attachment acc. to IEC 60534-6: 3.6 to 200 mm
Rotary actuators: 24° to 100°
Travel range Adjustable within the initialized travel/angle of rotation
Travel can be restricted to 15at the maximum
Ref. vari-
able w
Signal range 4 to 20 mA · Two-wire unit with reverse polarity protection · Min. span 4 mA
Static destruc-
tion limit
30 V
Minimum current 3.6 mA for display · Emergency venting at £3.8 mA
Load impedance £9.2 V (corresponding to 460 Wat 20 mA)
Supply air Supply pres-
sure
1.4 to 7 bar (20 to 105 psi)
Air quality
ISO 8573-1
(2001-02)
Max. particle size and density: Class 4 · Oil content: Class 3
pressure dew point: Class 3 or at least 10 K beneath the lowest ambient temperature to
be expected
Signal pressure (output) 0 bar up to the capacity of supply pressure · Limitable between 1.4 and 7.0 bar by soft-
ware
Character-
istic
Adjustable Linear, equal percentage, reverse equal percentage, user-defined (by software)
Butterfly, rotary plug and segmented ball valves: linear/equal percentage
Deviation £1 %
Hysteresis £0.3 %
Sensitivity £0.1 %
Transit time Separately adjustable up to 240 seconds for supply air and exhaust air by software
Direction of action Reversible
Air consumption, steady
state
Independent from supply pressure approx. 110 ln/h
Air output
capacity
Actuator pres-
surized
At Dp = 6 bar: 8.5 mn³/h · At Dp = 1.4 bar: 3.0 mn³/h · KVmax (20 °C) = 0.09
Actuator
vented
At Dp = 6 bar: 14.0 mn³/h · At Dp = 1.4 bar: 4.5 mn³/h · KVmax (20 °C) = 0.15
Permissible ambient
temperature
–20 to +80 °C for all versions
–45 to +80 °C with metal cable gland
–25 to +80 °C with inductive limit switch (SJ2-S1N) and metal cable gland
Limits in test certificate additionally apply for explosion-protected devices
Influences Temperature £0.15 %/10 K
Supply air None
Vibration £0.25 % up to 2000 Hz and 4 g acc. to IEC 770
Electromagnetic
compatibility
Complying with requirements of EN 61000-6-2, EN 61000-6-3, EN 61326-1 and
NAMUR Recommendation NE 21

16 EB 8384-6 EN
Design and principle of operation
Type 3730-6 Positioner (technical data in test certificates additionally apply for explosion-protected devices)
Electrical connections One M20 x 1.5 cable gland for 6 to 12 mm clamping range · Additional second M20 x
1.5 threaded hole · Screw terminals for 0.2 to 2.5 mm² wire cross-section
Degree of protection IP 66/NEMA 4X
Use in safety-instrumented
systems in compliance with
IEC 61508/SIL
Suitable for use in safety-instrumented systems up to SIL 2
– triggered by the set point, emergency venting at £3.8 mA or £4.4 mA depending
on the positioner version
– by the optional forced venting, emergency venting at £12 V
Suitable for use in safety-instrumented systems up to SIL 3
The current circuit of the set point and the forced venting must both be operated in a
safety-related system
Communi-
cation
Local SAMSON SSP interface and serial interface adapter
Software requirement (SSP): TROVIS-VIEW with database module 3730-6
HART®HART®field communication protocol
Impedance in HART frequency range: receive 350 to 450 W, send: approx. 155 W
Software requirements (handheld communicator): device description for Type 3730-6
Software requirements (PC): DTM file acc. to Specification 1.2, suitable for integrating
the positioner in frame applications that supports the FDT/DTM concept (e.g. PACTware)
Explosion
protection
ATEX Type 3730-6-110: II 2G Ex ia IIC/IIB T6; II 2D Ex tb IIIC T6 IP 66
Type 3730-6-810: II 3G Ex nA II T6; II 3G Ex ic IIC/IIB T6; II 3D Ex tc IIIC T 80 °C IP 66
IECEx Type 3730-6-111: Ex ia IIC/IIB T6; Ex d [ia] IIC/IIB T6; Ex tD A21 IP 66 T 80 °C
Type 3730-6-811: Ex nA II T6; Ex nL IIC/IIB T6; Ex tD A22 IP 66 T 80 °C
GOST Type 3730-6-113: 1Ex ia IIC T6 X, DIP A21 Ta80°C, IP 66
Type 3730-6-813: Ex nA II T6, Ex nL IIC T6, DIP A22 Ta80°C, IP 66
Binary contacts
2 software limit switches, reverse polarity protection, floating, configurable switching characteristics (default settings
according to table)
Signal
status
No response £1.2 mA
Response ³2.1 mA
1 fault alarm contact, floating
Signal
status
No response/No
alarm ³2.1 mA
Response/Fault
alarm £1.2 mA
For connection to NAMUR switching amplifier acc. to EN 60947-5-6
Materials
Housing Die-cast aluminum EN AC-AlSi12(Fe) (EN AC-44300) acc. to DIN EN 1706, chromated
and powder paint coated · Special version: Stainless steel 1.4581
External parts Stainless steel 1.4571 and 1.4301
Cable gland Polyamide, black, M20 x 1.5
Weight Approx. 1.0 kg

EB 8384-6 EN 17
Design and principle of operation
Options for Type 3730-6 Positioner
Inductive limit switch For connection to switching amplifier acc. to EN 60947-5-6.
Can be used in combination with a software limit switch.
SJ2-SN proximity switch NAMUR NC contact
SJ2-S1N proximity switch NAMUR NO contact
Solenoid valve · Approval acc. to IEC 61508/SIL
Input 24 V DC reverse polarity protection, static destruction limit 40 V
Current consumption I = U5.7V
3840
-
W(corresponding to 4.8 mA at
24 V/114 mW)
Signal "0" no pick-up £12 V
Signal "1" safe pick-up > 19 V
Service life > 5 x 10 6switching cycles
Use in safety-instrumented systems in
compliance with IEC 61508/SIL
Suitable for use in safety-instrumented systems up to SIL 2
– triggered by the set point, emergency venting at £3.8 mA or £4.4 mA
depending on the positioner version
– by the optional forced venting, emergency venting at £12 V
Suitable for use in safety-instrumented systems up to SIL 3
The current circuit of the set point and the forced venting must both be operated
in a safety-related system
Forced venting· Approval acc. to IEC 61508/SIL
Input 24 V DC reverse polarity protection, static destruction limit 40 V
Current consumption I = U5.7V
3840
-
W(corresponding to 4.8 mA at
24 V/114 mW)
Signal "0" no pick-up £12 V
Signal "1" safe pick-up > 19 V
Use in safety-instrumented systems in
compliance with IEC 61508/SIL
Suitable for use in safety-instrumented systems up to SIL 2
– triggered by the set point, emergency venting at £3.8 mA or £4.4 mA
depending on the positioner version
– by the optional forced venting, emergency venting at £12 V
Suitable for use in safety-instrumented systems up to SIL 3
The current circuit of the set point and the forced venting must both be operated
in a safety-related system
Analog position transmitter Two-wire transmitter · Galvanically isolated
Supply voltage 12 to 30 V DC · Reverse polarity protection · Static destruction limit 40 V
Output signal 4 to 20 mA
Direction of action Reversible
Operating range –10 to +114 %
Characteristic Linear
Hysteresis and HF influence or other
influences Same as positioner
Fault indication Can be issued with current signal 2.4 ±0.1 mA or 21.6 ±0.1 mA

18 EB 8384-6 EN
Design and principle of operation
Options for Type 3730-6 Positioner
Binary input · Galvanically isolated · Switching behavior configured over software
Active switching behavior (default setting)
Connection For external switch (floating contact) or relay contacts
Electrical data Open-circuit voltage when contact is open: max. 10 V, pulsed DC current with
peak value of 100 mA and RMS current 0.01mA when the contact is closed
Contact Closed, R < 20 WSwitching state ON (default)
Open, R > 400 WSwitching state OFF (default)
Passive switching behavior
Connection For externally applied DC voltage, reverse polarity protection
Electrical data 3 to 30 V · Destruction limit: 40 V · Current draw at 24 V: 3.7 mA
Voltage > 6 V Switching state ON (default)
< 1 V Switching state OFF (default)
External position sensor
Travel Same as positioner
Cable 10 m with M12x1 connector, designed for continuous flexing, flame retardant
acc. to VDE 0472, resistant to oils, lubricants, coolants as well as other corro-
sive media
Permissible ambient
temperature
–60 to +105 °C · Limits specified in the EC Type Examination Certificate addi-
tionally apply for explosion-protected devices.
Vibration immunity Up to 10 g in the range between 10 and 2000 Hz
Degree of protection IP 67

EB 8384-6 EN 19

4 Attachment to the control
valve – Mounting parts and
accessories
WARNING!
Attach the positioner, keeping the following
sequence:
1. Mount the positioner on the control valve
2. Connect the supply air
3. Connect the electrical power
4. Perform the start-up settings
The positioner is suitable for the following
types of attachment:
4Direct attachment to SAMSON
Type 3277 Actuator
4Attachment to actuators according to
IEC 60534-6 (NAMUR)
4Attachment to Type 3510 Micro-flow
Valve
4Attachment to rotary actuators
NOTICE
Attach the positioner to the control valve,
observing the following instructions to avoid
damaging the positioner.
–
Use only the mounting parts/accessories
listed in the Tables 2 to 6 (pages 41 to
43) to mount the positioner. Observe the
type of attachment!
–
Observe the assignment between lever
and pin position (see travel tables on
page 21)!
Lever and pin position
The positioner is adapted to the actuator
and to the rated travel by the lever on the
back of the positioner and the pin inserted
into the lever.
The travel tables on page 21 show the maxi-
mum adjustment range at the positioner. The
travel that can be implemented at the valve
is additionally restricted by the selected
fail-safe position and the required compres-
sion of the actuator springs.
The positioner is standard equipped with the
lever M(pin position 35).
NOTICE
The lever must be held stationary in the mid
position while undoing or fastening the nut
to ensure that the lever does not move to one
of the end stops.
20 EB 8384-6 EN
Attachment to the control valve – Mounting parts and accessories
Fig. 3 · Lever M with pin position 35