EB 8384-0 EN (1300-1609)
Translation of original instructions

Type 3730-0 Electropneumatic Positioner

Edition September 2018

Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices.
Î For the safe and proper use of these instructions, read them carefully and keep them forlater reference.
Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesservice@samson.de).

The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
at www.samson.de > Service & Support > Downloads > Documentation.

Definition of signal words! DANGER
Hazardous situations which, if not avoided,
will result in death or serious injury! WARNING
Hazardous situations which, if not avoided,
could result in death or serious injury

2! NOTICE
Property damage message or malfunction
Note
Additional information
Tip
Recommended action

EB 8384-0 EN

Contents

1
1.1
1.2

Safety instructions and measures....................................................................5
Notes on possible severe personal injury..........................................................8
Notes on possible property damage.................................................................8

2
2.1
2.2

Markings on the device................................................................................10
Nameplate...................................................................................................10
Article code..................................................................................................11

3
3.1
3.2
3.3
3.4
3.5
3.6

Design and principle of operation.................................................................12
Mounting versions.........................................................................................13
Device overview and operating controls..........................................................13
Accessories..................................................................................................14
Travel tables.................................................................................................17
Technical data..............................................................................................18
Dimensions in mm.........................................................................................21

4
4.1
4.2
4.3

Measures for preparation.............................................................................24
Unpacking...................................................................................................24
Transporting.................................................................................................24
Storage........................................................................................................24

5
5.1
5.2
5.3
5.3.1
5.3.2
5.4
5.5
5.6
5.7
5.7.1
5.8
5.9
5.10
5.10.1
5.10.25.10.35.10.45.10.55.10.6

Mounting and start-up..................................................................................26
Mounting position.........................................................................................26
Lever and pin position...................................................................................26
Direct attachment..........................................................................................28
Type 3277-5 Actuator...................................................................................28
Type 3277 Actuator......................................................................................30
Attachment according to IEC 60534-6............................................................32
Attachment according to VDI/VDE 3847-1.....................................................34
Attachment to Type 3510 Micro-flow Valve.....................................................40
Reversing amplifier for double-acting actuators...............................................42
Reversing amplifier (1079-1118 or 1079-1119).............................................42
Attaching positioners with stainless steel housings............................................44
Air purging function for single-acting actuators...............................................44
Setting start-up parameters............................................................................45
Fail-safe position...........................................................................................45
Volume restriction Q......................................................................................46
Travel selection.............................................................................................46
Direction of action.........................................................................................46
Signal pressure limitation...............................................................................47
Set point......................................................................................................47

EB 8384-0 EN

3

Contents

5.11
5.11.1
5.11.2
5.11.35.11.4
5.12

Pneumatic connections..................................................................................48
Signal pressure connection............................................................................49
Signal pressure gauges.................................................................................49
Supply pressure............................................................................................49
Signal pressure (output).................................................................................49
Electrical connections....................................................................................50

6

Operation....................................................................................................53

7
7.1
7.2
7.3
7.4

Operating the positioner...............................................................................54
Setting zero..................................................................................................54
Reducing gain..............................................................................................54
Adapting the travel.......................................................................................54
Activate tight-closing function.........................................................................548
8.1

Servicing.....................................................................................................55
Preparation for return shipment......................................................................55

9
9.1

Malfunctions................................................................................................55
Emergency action.........................................................................................56

10
10.1
10.2
10.3

Decommissioning and removal.....................................................................56
Decommissioning..........................................................................................56
Removing the positioner................................................................................56
Disposal.......................................................................................................56

11
11.1
11.2

Appendix.....................................................................................................57
After-sales service.........................................................................................57
Certificates...................................................................................................57

4

EB 8384-0 EN

Safety instructions and measures

1 Safety instructions and measures
Intended use
The SAMSON Type 3730-0 Positioner is mounted on pneumatic control valves and is used toassign the valve position to the control signal. The device is designed to operate under exactly defined conditions (e.g. operating pressure, temperature). Therefore, operators must ensure that the positioner is only used in applications where the operating conditions correspond to the technical data. In case operators intend to use the positioner in other applications or conditions than specified, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the device for its intended purpose or for damage caused by external forces or any other external
factors.
Î Refer to the technical data for limits and fields of application as well as possible uses.
Reasonably foreseeable misuse
The Type 3730-0 Positioner is not suitable for the following applications:− Use outside the limits defined during sizing and by the technical data
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts− Performing maintenance activities not specified by SAMSON
Qualifications of operating personnel
The 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 toand recognize possible hazards due to their specialized training, their knowledge and experience as well as their knowledge of the applicable standards.
Explosion-protected versions of this device are to be operated only by personnel who has undergone special training or instructions or who is authorized to work on explosion-protected
devices in hazardous areas.

EB 8384-0 EN

5

Safety instructions and measures

Personal protective equipment
No personal protective equipment is required for the direct handling of the positioner. Workon the control valve may be necessary when mounting or removing the device.
Î Observe the requirements for personal protective equipment specified in the valve documentation.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modifications
Revisions, conversions or other modifications of the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Furthermore, the product may no longer meet the requirements for its intended use.
Safety features
Upon failure of the air supply or electric signal, the positioner vents the actuator, causing thevalve to move to the fail-safe position determined by the actuator.
Warning against residual hazards
The positioner has direct influence on the control valve. Any hazards that could be caused in
the valve by the process medium, the signal pressure or by moving parts are to be prevented
by taking appropriate precautions. They must observe all hazard statements, warning andcaution notes in these mounting and operating instructions, especially for installation, startup and service work.
If inadmissible motions or forces are produced in the pneumatic actuator as a result of the
supply pressure level, it must be restricted using a suitable supply pressure reducing station.
Explosion protection− Explosive dust atmospheres of zone 21 or zone 22
The following applies to type of protection Ex i in combustible dust atmospheres:
If intrinsic safety is impaired by the influence of dust, an enclosure complying with
Clause 6.1.3 of EN 60079-11 with at least in degree of protection IP 5X must be used.
The requirements according to Clause 6.1.3 apply to the cable glands accordingly. The
degree of ingress protection is verified by a test according to IEC 60529 and EN 600790 (e.g. performed by VDE).
For use in the presence of combustible dust in compliance with type of protection
Ex tb IIIC (protection by enclosure), observe Clause 5.6.3 of EN 60079-14.

6

EB 8384-0 EN

Safety instructions and measures− Servicing explosion-protected devices
If a part of the device on which the explosion protection is based needs to be serviced,
the device must not be put back into operation until a qualified inspector has assessed it
according to explosion protection requirements, has issued an inspection certificate, or
given the device a mark of conformity. Inspection by a qualified inspector is not required
if the manufacturer performed a routine test on the device before putting it back into operation. Document the passing of the routine test by attaching a mark of conformity to thedevice.
Replace explosion-protected components only with original, routine-tested components by
the manufacturer.
Devices that have already been used outside hazardous areas and are intended for future use inside hazardous areas must comply with the safety requirements placed on serviced devices. Before being operated inside hazardous areas, test the devices according
to the specifications for servicing explosion-protected devices.
EN 60079-17 applies to servicing explosion-protected devices.
− Maintenance, calibration and work on equipment
To ensure that components relevant to explosion protection are not damaged, observe themaximum permissible values specified in the certificates for intrinsically safe circuit.
Responsibilities of the operator
The operator is responsible for proper operation and compliance with the safety regulations.
Operators are obliged to provide these mounting and operating instructions to the operating
personnel and to instruct them in proper operation. Furthermore, the operator must ensurethat operating personnel or third persons are not exposed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions aswell as the specified hazard statements, warning and caution notes. Furthermore, the operating personnel must be familiar with the applicable health, safety and accident prevention
regulations and comply with them.
Referenced standards and regulations
The device with a CE marking fulfills the requirements of the Directives 2014/30/EU and2011/65/EU as well as 2014/34/EU depending on the version. The declarations of conformity are included at the end of these instructions.

EB 8384-0 EN7

Safety instructions and measures

Referenced documentation
The following documents apply in addition to these mounting and operating instructions:− The mounting and operating instructions of the components on which the positioner ismounted (valve, actuator, valve accessories, etc.).

1.1 Notes on possible severe personal injury! DANGER
Risk of fatal injury due to the formation of an explosive atmosphere.
Incorrect installation, operation or maintenance of the positioner in potentially explosive
atmospheres may lead to ignition of the atmosphere and cause death.
Î The following regulations apply to installation in hazardous areas: EN 60079-14(VDE 0165, Part 1).
Î Installation, operation or maintenance of the positioner must only performed by personnel who has undergone special training or instructions or who is authorized towork on explosion-protected devices in hazardous areas.

1.2 Notes on possible property damage! NOTICE
Risk of damage to the positioner due to incorrect mounting position.
Î Do not mount the positioner with the back of the device facing upward.
Risk of malfunction due to incorrect sequence during start-up.
The positioner can only work properly if the mounting and start-up are performed in theprescribed sequence.
Î Perform mounting and start-up as described in section 5 in page 26.
An incorrect electrical power supply will damage the positioner.
A current source must be used to provide the electrical power for the positioner.
Î Only use a current source and never a voltage source.

8

EB 8384-0 EN

Safety instructions and measures

Incorrect assignment of the terminals will damage the positioner and will lead to malfunction.
For the positioner to function properly, the prescribed terminal assignment must be observed.
Î Connect the electrical wiring to the positioner according to the prescribed terminal
assignment.
Risk of positioner damage due to incorrect grounding of the electric welding
equipment.
Î Do not ground electric welding equipment near to the positioner.

EB 8384-0 EN

9Markings on the device

2 Markings on the device
2.1 Nameplate
Explosion-protected version

Version without explosion protection

SAMSON 3730 - 0

SAMSON 3730 - 0

7

Positioner
SupplyPositioner

1

Supply
2

Input

Input

3

10

3

Model 3730 - 0

4

Var.-ID

Serial no.

5

SAMSON AG D-60314 Frankfurt

6

Made in Germany

4

Serial no.

SAMSON AG D-60314 Frankfurt

1
2
3
4

1

See technical data for ambient temperature* See technical data and explosion-protection
certificate for permissible ambient temperatureand maximum values for connection tocertified intrinsically safe circuits.
** IP 66 with conductive dust

Model 3730 - 0
Var.-ID 5

7

6

Made in Germany

Supply pressure
Type of protection for explosion-protected devices
Signal range
Model no.

5
6
7

Configuration ID
Serial number
ComplianceEB 8384-0 EN

Markings on the device

2.2 Article code
Positioner

Type 3730-0 x 0 0 0 0 0 0 0 0 x 0 0 x 0 x x

Explosion protection
Without

0

II 2G Ex ia IIC T6 Gb, II 2D Ex ia IIIC T80°C Db

1

FM/CSA: Class I, Zone 0 AEx ia IIC; Class I, II, III, Div.1, Groups A-G;
Class I, Div.2, Groups A-D; Class II, Div.2, Groups F, G/Ex ia IIC T6; Class I, Zone 0; Class II, Groups E-G;
Ex nA II T6; Class I, Zone 2; Class II, Div. 2, Groups E-G

3

ATEX:

ATEX:

II 2D Ex tb IIIC T80°C Db IP66

5

JIS:

Ex ia IIC T6

7

ATEX:

II 3G Ex nA II T6; II 3G Ex ic IIC T6; II 3D Ex tc IIIC T80°C IP66

8

Housing material
Aluminum0

Stainless steel

1

Special applications
Without0Compatible with paint1

Exhaust air with ¼ NPT connection, back of housing sealed

2Special version
Without

00

EAC Ex: 1Ex ia IIC T6/T5/T4 Gb X, Ex tb IIIC T 80°C Db X

1

14

EAC Ex: 2Ex nA IIC T6/T5/T4 Gc X, 2Ex ic IIC T6/T5/T4 Gc X,
Ex tc IIIC T 80°C Dc X

8

20

Attachment according to VDI/VDE 3847 including interface

6

Attachment according to VDI/VDE 3847 prepared for interface

7

EB 8384-0 EN

11

Design and principle of operation

3 Design and principle of operation

A supply pressure between 1.4 to 6 bar isrequired. The electric input signal is a set
point between 4 to 20 mA.

Î Refer to Fig. 1

The positioner is designed depending on
which accessories are selected either for
direct attachment to SAMSON Type 3277
Actuators or for attachment to actuators
according to NAMUR (IEC 60534-6).

The electropneumatic positioner is mounted
on pneumatic control valves and is used toassign the valve position (controlled variablex) to the control signal (set point w). The positioner compares the electric control signalof a control system to the travel of the control
valve and issues a signal pressure (output
variable y) for the pneumatic actuator.

The positioner consists of a travel sensor
system proportional to resistance, an analog
i/p converter with a downstream air
capacity booster and the electronics withmicrocontroller.

1 Control valve

4

2 Travel sensor
3 PD controller
4 DIP switches
6 i/p converter
7 Air capacity booster
8 Pressure regulator

3w

9 Flow regulatorx

10 Volume restriction

2

6

9

8
Q
7

10

y

1
x

Fig. 1: Functional diagram

12

EB 8384-0 EN

Design and principle of operation

The position of the valve stem is transmitted
as a linear travel motion over the pick-up lever to the travel sensor (2) and supplied toan analog PD controller (3). The PD controller compares this actual value to the DC control signal coming from the control system,e.g. a 4 to 20 mA signal.
In case of a system deviation, the activationof the i/p module (6) is changed so that theactuator of the control valve (1) is pressurized or vented accordingly over the downstream booster (7). This causes the valve
plug to move to the position determined by
the set point.
The supply air is supplied to the booster (7)and the pressure regulator (8). An intermediate flow regulator (9) with fixed settings isused to purge the positioner and, at thesame time, guarantees trouble-free operationof the booster. The output signal pressure
supplied by the booster can be limited byenabling the DIP switch setting S5.
The volume restriction (10) and the switch S6
are used to optimize the positioner byadapting it to the actuator size and changing the gain factor.
Tight-closing function:
After activating the tight-closing function (seesection 7.4), the pneumatic actuator is completely filled with air or vented as soon as
the set point falls below or exceeds the corresponding deactivating point of 4.5 mA or
19.5 mA.

3.1 Mounting versions
The Type 3730-0 Positioner is suitable for thefollowing types of attachment using the corresponding accessories (see section 3.3):− Direct attachment to Type 3277 Actuator(see section 5.3): The positioner ismounted on the yoke. The signal pressure is connected to the actuator over aconnection block: internally over a holein the valve yoke for "actuator stem extends" fail-safe action and through anexternal signal pressure line for "actuator
stem retracts" fail-safe action.
− Attachment to actuators according toIEC 60534-6 (see section 5.4): The positioner is mounted to the control valve using a NAMUR bracket.
− Attachment according to VDI/
VDE 3847-1 (see section 5.5): Attachment according to VDI/VDE 3847-1/-2
using the corresponding accessories allows the positioner to be replaced quickly while the process is running.
− Attachment to Type 3510 Micro-flow
Valve (see section 5.6): The positioner is
attached to the valve yoke using a bracket.

3.2 Device overview andoperating controls
See section 6 on page 53.

In the case of three-way valves, the function
allows the plug move to the end position
with full actuator thrust.

EB 8384-0 EN

13

Design and principle of operation

3.3 Accessories
Table 1: General accessories
Designation

Order no.

Reversing amplifier for double-acting actuators

Type 3710

Cable gland M20x1.5

Adapter M20x1.5 to ½ NPT

Lever

Cover plate with list of parameters
and operating instructions

Black plastic (6 to 12 mm clamping range)

8808-1011

Blue plastic (6 to 12 mm clamping range)

8808-1012

Nickel-plated brass (6 to 12 mm clamping range)

1890-4875

Nickel-plated brass (10 to 14 mm clamping range)

1992-8395

Stainless steel 1.4305 (8 to 14.5 mm clamping range)

8808-0160

Powder-coated aluminum

0310-2149

Stainless steel

1400-7114

S

0510-0522

M

0510-0510

L

0510-0511

XL

0510-0512

XXL

0510-0525

DE/EN (delivered state)

1990-3528

EN/ES

1990-5769

EN/FR

1990-5768

Table 2: Direct attachment to Type 3277-5 (see section 5.3.1)
Designation
Mounting parts

Order no.
Standard version for actuators 120 cm² or smaller

1400-7452

Version compatible with paint for actuators 120 cm² or smaller

1402-0940

Old switchover plate for Type 3277-5xxxxxx.00 Actuator (old)1400-6819

New switchover plate for Type 3277-5xxxxxx.01 Actuator (new) 1)
Accessories for
New connecting plate for Type 3277-5xxxxxx.01 Actuator (new) 1), G 1/8 and 1/8 NPT
actuator
Old connecting plate for Type 3277-5xxxxxx.00 Actuator (old): G 1/8
Old connecting plate for Type 3277-5xxxxxx.00 (old): 1/8 NPT
Connecting plate (6)Accessories for
Pressure gauge bracket (7)positioner
Pressure gauge mounting kit (8) up to max. 6 bar(output/supply)1)

14

1400-6822
1400-6823
1400-6820
1400-6821

G¼

1400-7461¼ NPT

1400-7462

G¼

1400-7458¼ NPT

1400-7459

Stainless steel/brass

1400-6950

Stainless steel/stainless steel

1400-6951

Only new switchover and connecting plates can be used with new actuators (Index 01). Old and new plates are notinterchangeable.

EB 8384-0 EN

Design and principle of operation

Table 3: Direct attachment to Type 3277 (see section 5.3.2)
Mounting parts/accessories

Order no.

Standard version for actuators 175, 240, 350, 355, 700, 750 cm²
Version compatible with paint for actuators 175, 240, 350, 355, 700, 750 cm²
Connection block with seals and screw
Pressure gauge mounting kit up to max. 6 bar (output/supply)

Actuator (175 cm²), stainless steel
Actuator (240 cm²), steel
Actuator (240 cm²), stainless steel
Actuator (350 cm²), steel
Actuator (350 cm²), stainless steel
Actuator (355 cm²), steel
Actuator (355 cm²), stainless steel
Actuator (700 cm²), steel
Actuator (700 cm²), stainless steel
Actuator (750 cm²), steel
Actuator (750 cm²), stainless steel
1)1402-0941

G¼

1400-8819¼ NPT

1402-0901

Stainless steel/brass

1400-6950

Stainless steel/stainless steel

1400-6951

G ¼/G 3/8

1402-0970

Order no.

Piping with screw fittings 1)
Actuator (175 cm²), steel

1400-7453¼ NPT/3/8 NPT

1402-0976

G ¼/G 3/8

1402-0971¼ NPT/3/8 NPT

1402-0978

G ¼/G 3/8

1400-6444¼ NPT/3/8 NPT

1402-0911

G ¼/G 3/8

1400-6445¼ NPT/3/8 NPT

1402-0912

G ¼/G 3/8

1400-6446¼ NPT/3/8 NPT

1402-0913

G ¼/G 3/8

1400-6447¼ NPT/3/8 NPT

1402-0914

G ¼/G 3/8

1402-0972¼ NPT/3/8 NPT

1402-0979

G ¼/G 3/8

1402-0973¼ NPT/3/8 NPT

1402-0980

G ¼/G 3/8

1400-6448¼ NPT/3/8 NPT

1402-0915

G ¼/G 3/8

1400-6449¼ NPT/3/8 NPT

1402-0916

G ¼/G 3/8

1402-0974¼ NPT/3/8 NPT

1402-0981

G ¼/G 3/8

1402-0975¼ NPT/3/8 NPT

1402-0982

For "actuator stem retracts" direction of action;with air purging of the top diaphragm chamber;
air purging of the diaphragm chamber for "actuator stem extends" direction of action

EB 8384-0 EN

15

Design and principle of operation

Table 4: Attachment to NAMUR rib or attachment to rod-type yokes1) according toIEC 60534-6 (section 5.4)
Travel inmm

Lever For actuator

Order no.

7.5

SType 3271-5 with 60/120 cm² on Type 3510 Micro-flow Valve1402-0478

5 to 50

M2)

Actuators from other manufacturers and Type 3271 with 120 to 750 cm² effective areas

1400-7454

14 to 100

L

Actuators from other manufacturers and Type 3271 with 1000 and 140060 cm²

1400-7455

Type 3271, 1400-120 and 2800 cm² versions with 30/60 mm travel

1400-7466

30 or 60

40 to 200

L

XL

3)

Mounting brackets for Emerson and Masoneilan linear actuators (in addition, amounting kit according to IEC 60534-6 is required depending on the travel). See
rows above.

1400-6771

Valtek Type 25/50

1400-9554

Actuators from other manufacturers and Type 3271 with 1400-120 and
2800 cm² and with 120 mm travel

1400-7456

Accessories
Connecting plate
Pressure gauge bracket
Pressure gauge mounting kit up to max. 6 bar (output/supply)
1)
2)
3)

Order no.
G¼

1400-7461¼ NPT

1400-7462

G¼

1400-7458¼ NPT

1400-7459

Stainless steel/brass

1400-6950

Stainless steel/stainless steel

1400-6951

20 to 35 mm rod diameter
M lever is mounted on basic device (included in the scope of delivery)
In conjunction with Type 3273 Side-mounted Handwheel with 120 mm rated travel, additionally one bracket(0300-1162) and two countersunk screws (8330-0919) are required.

Table 5: Attachment according to VDI/VDE 3847-1 (see section 5.5)
Mounting parts

Order no.

VDI/VDE 3847 interface adapter

1402-0257

Mounting kit for attachment to SAMSON Type 3277 Actuator with 175 to 750 cm²1402-0868

Mounting kit for attachment to SAMSON Type 3271 Actuator or non-SAMSON actuators

1402-0869

Travel pick-off for valve travel up to 100 mm

1402-0177

Travel pick-off for 100 to 200 mm valve travel (SAMSON Type 3271 Actuator only)

1402-0178

16

EB 8384-0 EN

Design and principle of operation

3.4 Travel tables
Note
The M lever is included in the scope of delivery.
S, L, XL levers for attachment according to IEC 60534-6 (NAMUR) are available asaccessories (see Table 4 on page 16). The XXL lever is available on request.
Table 6: Direct attachment to Type 3277-5 and Type 3277 Actuator
Actuator size
[cm²]

Rated travel[mm]

Adjustment range at positioner
Travel [mm]Required
lever

Assigned pin
position120

7.5

5.0 to 25.0M

25120/175/240/350

15

7.0 to 35.0M35355/700/750

3010.0 to 50.0

M

50

Table 7: Attachment according to IEC 60534-6 (NAMUR)SAMSON valves with Type 3271 Actuator

Other valves/actuators

Actuator area

Rated travel

Min. travel

Max. travel

[cm²]

[mm]

[mm]

[mm]

Required lever

Assigned pin
position

60 and 120
with Type 3510 Valve

7.5

3.6

18.0

S

17

5.0

25.0

M

25

7.0

35.0

M

35

120

7.5

120/175/240/350

15355/700/750

7.5

355/700/750

15 and 30

10.0

50.0

M

50

30

14.0

52.0

L

70

1000/1400/2800

60

20.0

75.0

L

100

1400/2800

120

40.0

200.0

XL

200

See manufacturer's
specifications

200

XXL

300

EB 8384-0 EN

See manufacturer's specifications

17

Design and principle of operation

3.5 Technical data
Table 8: Type 3730-0 Electropneumatic Positioner
Type 3730-0 Positioner: the technical data for the explosion-protected devices may be restricted by thelimits specified in the test certificates.
Rated travel

Adjustable: Direct attachment to Type 3277:
Attachment according to IEC 60534-6:

Travel range

Adjustable within the rated travel, max. ratio 1:5

Set point w

4 to 20 mA signal range
Split-range operation 4 to 12 mA and 12 to 20 mA, selected at the DIP switch
Two-wire device, reverse polarity protection, static destruction limit 100 mA

Minimum current> 3.6 mA

Load impedanceVersion without explosion protection: ≤ 6 V (corresponding to 300 Ω at 20 mA)
Explosion-protected version: ≤ 6 V

Supply air

1.4 to 7 bar (20 to 105 psi)

Air quality acc. toISO 8573-1 (edition
2001-02):

5.3 to 30 mm
5.3 to 200 mm

Max. particle size and density: Class 4
Oil content: Class 3 · Pressure dew point: Class 3 or at least 10 K below the lowest
ambient temperature to be expected

Signal pressure (output)

0 bar up to the supply pressure
Limitation to approx. 2.4 bar enabled by setting DIP switch

Characteristic

Linear, deviation from characteristic ≤ 1 %Hysteresis≤1 %Sensitivity≤0.1 %

Direction of action

Selectable over DIP switch

Air consumption, steadystate

Independent from supply pressure approx. 120 ln/h

Air output capacity
To fill actuator with air
To vent actuator

At Δp = 6 bar: 8.5 mn³/h · At Δp = 1.4 bar: 3.0 mn³/h · KVmax (20 °C) = 0.09
At Δp = 6 bar: 14.0 mn³/h · At Δp = 1.4 bar: 4.5 mn³/h · KVmax (20 °C) = 0.15

Permissible ambient temperature–20 to +80 °C–45 to +80 °C with metal cable gland
The temperature limits for the explosion-protected devices may be restricted by thelimits specified in the test certificates.

Influences

Temperature: ≤0.15 %/10 K
Supply air: none
Vibrations:≤ 0.25 % up to 2000 Hz and 4 g according to IEC 770

Electromagnetic
compatibility

Complying with EN 61000-6-2, EN 61000-6-3, EN 61326-1 and NAMUR
Recommendation NE 21

18

EB 8384-0 EN

Design and principle of operation

Type 3730-0 Positioner: the technical data for the explosion-protected devices may be restricted by thelimits specified in the test certificates.
Use in safety-instrumented
systems acc. to IEC 61508

Suitable for use in safety-instrumented systems up to SIL 2 (single device) and SIL 3(with redundant configuration)
Emergency shutdown at a set point of 0 mA

Degree of protection

IP 66

Materials

Die-cast aluminum EN AC-AlSi12(Fe) (EN AC-44300) according to DIN EN 1706,
chromated and plastic coatedExternal parts: stainless steel 1.4404/316L

WeightApprox. 1 kg

ComplianceEB 8384-0 EN·

19

Design and principle of operation

Table 9: Explosion protection certificates

-0

Type

Certification

STCC

-01

1)

3730

-03

CSA

-07

-05

FM

1)

JIS

-08

2)

1)
2)

20

Type of protection/comments
Number

ZETC/15/2018

Date

2018-04-27

Valid until

2021-04-26

Number

PTB 03.ATEX 2099

Date

2016-04-19

NumberRU C-DE.
AA87.B.01278

Date

2018-11-30

Valid until

2023-11-29

Number1613095

Date

2005-02-11

Number

3021579Date

2004-12-01

Number

PTB 03.ATEX 2099

Date

2016-04-19

Number

TC17330

Date

2017-07-29

Valid until

2020-07-28

Number

PTB 03.ATEX 2179 X

Date

2013-09-17

NumberRU C DE.08.B.01278

Date

2018-11-30

Valid until

2023-11-29

0Ex ia IIC T6X
2Ex s II T6 X

II 2G Ex ia IIC T6 Gb,
II 2D Ex ia IIIC T80°C Db

1 Ex ia IIC T6/T5/T4 Gb X
Ex tb IIIC T80°C Db X
Ex ia IIC T6; Class I, Zone 0
Class II, Groups E, F, GEx nA II T6; Class I, Zone 2Class II, Div. 2, Groups E, F, G
Class I, Zone 0 AEx ia IIC
Class I, II, III, Div.1, Groups A, B, C, D, E, F, G
Class I, Div.2, Groups A, B, C, D
Class II, Div.2, Groups F, GII 2D Ex tb IIIC T80°C Db IP66

Ex ia IIC T6

II 3G Ex nA II T6
II 3G Ex ic IIC T6
II 3D Ex tc IIIC T80°C IP66
2 Ex nA IIC T6/T5/T4 Gc X
2 Ex ic IIC T6/T5/T4 Gc X
Ex tc IIIC T80°C Dc X

EC type examination certificate
Statement of conformity

EB 8384-0 EN

Design and principle of operation

3.6 Dimensions in mm

210

Direct attachment

14

34

80

M20x1.5

40

28

58

Output (38)Supply (9)

86

164

Pressuregauge
bracketor connecting plate

Attachment according to IEC 60534-5 (NAMUR)

76

50

15
70

58
46

34

Lever mm
S =   17
M =   50
L = 100
XL = 200

58
A1

Output (A1)Z

A2

Supply (Z)Output (A2)

Optional reversing amplifier (1079-1118 or
1079-1119) (no longer available)

EB 8384-0 EN

21

Design and principle of operation

Attachment according to
VDI/VDE 3847 to Type 3277

13
Lever mm
M = 50
L

= 100

62

24

164

200

XL = 200

164

Attachment according to
VDI/VDE 3847 to a NAMUR
rib

62

83

164

22

EB 8384-0 EN

Design and principle of operation

Output Y1
Output Y1 Supply (9)

80

52

58
Output Y2

Output Y2

Type 3710 Reversing Amplifier (optional)

EB 8384-0 EN

23

Measures for preparation

4 Measures for preparation
After receiving the shipment, proceed as follows:
1. Check the scope of delivery. Compare
the shipment received with the deliverynote.
2. Check the shipment for transportation
damage. Report any transportation damage.

4.3 Storage! NOTICE
Risk of positioner damage due to improper
storage.
− Observe the storage instructions.
− Contact SAMSON in case of different storage conditions or long storage periods.
Storage instructions

4.1 Unpacking− Protect the positioner against external influences (e.g. impact, shocks, vibration).

! NOTICE− Do not damage the corrosion protection(coating).

Risk of positioner damage due to foreign
particles entering it.
Do not remove the packaging and protective
film/protective caps until immediately before
mounting and start-up.
1. Remove the packaging from the positioner.
2. Dispose of the packaging in accordancewith the valid regulations.

4.2 Transporting− Protect the positioner against moistureand dirt. In damp spaces, prevent condensation. If necessary, use a drying
agent or heating.
− Observe storage temperature dependingon the permissible ambient temperature(see technical data in section 3.5).
− Store positioner with closed cover.
− Seal the pneumatic and electrical connections.

− Protect the positioner against external influences (e.g. impact).
− Protect the positioner against moistureand dirt.
− Observe transport temperature depending on the permissible ambient temperature (see technical data in section 3.5).

24

EB 8384-0 EN

Measures for preparation

EB 8384-0 EN

25

Mounting and start-up

5 Mounting and start-up! NOTICE
Risk of malfunction due to incorrect sequenceof mounting, installation and start-up.
Observe the prescribed sequence.
Î Sequence:
1. Remove the protective caps from thepneumatic connections.
2. Mount the positioner on the valve.
Î Section 5.3 onward
3. Set start-up parameters.
Î Section 5.10 onward
4. Perform pneumatic installation.
Î Section 5.11 onward
5. Perform electrical installation.
Î Section 5.12 onward
6. Perform settings.
Î Section 6 onward

5.1 Mounting position! NOTICE
Risk of damage to the positioner due to incorrect mounting position.
− Do not mount the positioner with the backof the device facing upward.
− Do not seal or restrict the vent opening
when the device is installed on site.

5.2 Lever and pin position
The positioner is adapted to the actuator andto the rated travel by the lever on the back of
the positioner and the pin inserted into thelever.
The travel tables on page 17 show the
maximum adjustment range at the positioner. The travel that can be implemented at thevalve is additionally restricted by the selected
fail-safe position and the required compression of the actuator springs.
The positioner is equipped with the M lever(pin position 35) as standard (see Fig. 4).
Note
The M lever is included in the scope of delivery.
S, L, XL levers are available as accessories(see Table 4 on page 16). The XXL lever isavailable on request.
If a pin position other than position 35 withthe standard M lever is required or an L or
XL lever size is required, proceed as follows(see Fig. 5):
1. Fasten the follower pin (2) in the assigned lever hole (pin position as specified in the travel tables on page 17).
Only use the longer follower pin included in the mounting kit.
2. Place the lever (1) on the shaft of the positioner and fasten it tight using the disk
spring (1.2) and nut (1.1).

Î Observe mounting position (see Fig. 3).

26

EB 8384-0 EN

Mounting and start-up

Vent opening

Fig. 2: Vent opening(back of the positioner)







!

Fig. 3: Permissible mounting
positionsFig. 4: M lever with pin position 35

2
1.1

1.2
1

1
1.1
1.2
2

Lever
Nut
Disk spring
Follower pin

Fig. 5: Mounting the leverand follower pin

EB 8384-0 EN

27

Mounting and start-up

5.3 Direct attachment
5.3.1

Type 3277-5 ActuatorÎ Required mounting parts and accessories: Table 2 on page 14.
Î Observe travel tables on page 17.
Actuator with 120 cm² (see Fig. 6)
Depending on the type of positioner
attachment, the signal pressure is routed
either left or right of the yoke through a hole
to the actuator diaphragm. Depending on
the fail-safe action of the actuator "actuator
stem extends" or "actuator stem retracts"(valve closes or opens upon supply air
failure), the switchover plate (9) must first be
attached to the actuator yoke. Align theswitchover plate with the corresponding
symbol for left or right attachment according
to the marking (view looking onto theswitchover plate).
1. Mount connecting plate (6) or pressuregauge bracket (7) with pressure gauges
on the positioner, making sure the twoseals (6.1) are seated properly.
2. Remove screw plug (4) on the back of
the positioner and seal the signal pressure output (38) on the connecting plate(6) or on the pressure gauge bracket (7)with the stopper (5) included in the accessories.
3. Place follower clamp (3) on the actuator
stem, align it and screw tight so that themounting screw is located in the grooveof the actuator stem.

28

4. Mount cover plate (10) with narrow sideof the cut-out (Fig. 6, on the left) pointing
towards the signal pressure connection.
Make sure that the gasket (14) points towards the actuator yoke.
5. 15 mm travel: Keep the follower pin (2)on the M lever (1) on the back of the positioner in the pin position 35 (delivered
state).
7.5 mm travel: Remove the follower pin(2) from the pin position 35, reposition it
in the hole for pin position 25 and screw
tight.
6. Insert formed seal (15) into the groove of
the positioner housing and insert the seal
(10.1) on the back of the housing.
7. Place positioner on the cover plate (10)in such a manner that the follower pin(2) rests on the top of the follower clamp(3). Adjust the lever (1) correspondingly
and open the positioner cover to hold thepositioner shaft in position at the cap orswitch (Fig. 18). The lever (1) must reston the follower clamp with spring force.
Mount the positioner on the cover plate(10) using the two fixing screws.
Note
The following applies to all types of attachment except for direct attachment toType 3277-5: the signal pressure output atthe back must be sealed by the screw plug
(4, order no. 0180-1436) and the associated O-ring (order no. 0520-0412) (delivered
state, parts included in the scope of delivery).

EB 8384-0 EN

Mounting and start-up

Symbols

Switchover plate (9)

1
1.1
1.2
2
3
4
5
6
6.1
7
8

Actuator stem
extends
Left attachment

Right attachment

Actuator stem
retracts
Signal pressure
input for left
attachment Marking

Signal pressure
input for rightattachment

15
14

Lever
Nut
Disk spring
Follower pin
Follower clamp
Screw plug
StopperConnecting plate
Seals
Pressure gauge bracket
Pressure gauge
mounting kit
9
Switchover plate(actuator)
10
Cover plate10.1 Seal
11
Cover
14
Gasket15
Formed seal

1
2

3
1.1
1.2
Cut-out ofcover plate
4

6.1
6
5
Supply 9

10.1
10
6

Output 38
7
8

9

11

! NOTICE
Only use the connecting plate (6) included in the accessories to connect
supply and output.
Never screw threaded parts directly
into housing.

Fig. 6: Direct attachment – Signal pressure connection for Type 3277-5 Actuator with 120 cm²

EB 8384-0 EN

29

Mounting and start-up

8. Mount cover (11) on the other side.
Make sure that the vent plug is located at
the bottom when the control valve is installed to allow any condensed waterthat collects to drain off.

5.3.2

Type 3277 ActuatorÎ Required mounting parts and accessories: Table 3 on page 15.
Î Observe travel tables on page 17.
Actuators with 175 to 750 cm² effective areas (see Fig. 7)
Mount the positioner on the yoke. The signal
pressure is routed to the actuator over theconnection block (12), for actuators with failsafe action "actuator stem extends" internally through a hole in the valve yoke and for"actuator stem retracts" through an externalpipe.
1. Place follower clamp (3) on the actuator
stem, align it and screw tight so that themounting screw is located in the grooveof the actuator stem.
2. Mount cover plate (10) with narrow sideof the cut-out (Fig. 7, on the left) pointing
towards the signal pressure connection.
Make sure that the gasket (14) points towards the actuator yoke.
3. For actuators with 355, 700 or 750 cm²,
remove the follower pin (2) on the M lever (1) on the back of the positioner frompin position 35, reposition it in the holefor pin position 50 and screw tight.

For actuators 175, 240 and 350 cm²
with 15 mm travel, keep the follower pin(2) in pin position 35.
4. Insert formed seal (15) into the groove of
the positioner housing.
5. Place positioner on the cover plate insuch a manner that the follower pin (2)rests on the top of the follower clamp (3).
Adjust the lever (1) correspondingly andopen the positioner cover to hold the positioner shaft in position at the cap orswitch (Fig. 18). The lever (1) must reston the follower clamp with spring force.
Mount the positioner on the cover plate(10) using the two fixing screws.
6. Make sure that the tip of the gasket (16)projecting from the side of the connection block is positioned to match the actuator symbol for the actuator's fail-safe
action "actuator stem extends" or "actuator stem retracts". If this is not the case,
unscrew the three fastening screws andlift off the cover. Turn the gasket (16) by
180° and re-insert it.
The old connection block version (Fig. 7,
bottom) requires the switch plate (13) tobe turned to align the actuator symbolwith the arrow marking.
7. Place the connection block (12) with theassociated seals against the positioner
and the actuator yoke and fasten using
the screw (12.1). For actuators with failsafe action "actuator stem retracts", additionally remove the stopper (12.2) andmount the external signal pressure pipe.
8. Mount cover (11) on the other side.
Make sure that the vent plug is located at

30

EB 8384-0 EN

Mounting and start-up

1
1.1
1.2
2
3
10
11
11.1

12
12.1
12.2

Lever
Nut
Disk spring
Follower pin
Follower clamp
Cover plate
Cover
Vent plug

13
14
15
16

Connection block
Screw
Stopper or connection for
external piping
15
Switch plate
GasketFormed seal
Gasket

10 14
1

2

3

11 11.1

2
M lever
1.1
1.2
Cut-out ofcover plate (10)View A

16

View C

16

G
G 3/8

SUPPLYC

Actuator stem
retracts
extends

16

12

SUPPLY
12.1

A

12.2

View B

SUPPLY13
12
Actuator stem retracts

Connection
block (old) withswitch plate (13)B

Actuator stem extends
Marking

12
12.1

12.2

Fig. 7: Direct attachment – Signal pressure connection for Type 3277 Actuator with 175 to 750 cm²

EB 8384-0 EN

31

Mounting and start-up

the bottom when the control valve is installed to allow any condensed waterthat collects to drain off.

5.4 Attachment according toIEC 60534-6
Î Required mounting parts and accessories: Table 4 on page 16.
Î Observe travel tables on page 17.
Î Refer to Fig. 8
The positioner is attached to the control valve
using a NAMUR bracket (10).
1. Screw the two bolts (14) to the bracket(9.1) of the stem connector (9), place thefollower plate (3) on top and use thescrews (14.1) for fastening.
2800 and 1400 cm² with 120 mm travel:− For a travel of 60 mm or smaller,
screw the longer follower plate (3.1)
directly to the stem connector (9).
− For a travel exceeding 60 mm, mountthe bracket (16) first and then the follower plate (3) to the bracket together with the bolts (14) and screws(14.1).
2. Mount NAMUR bracket (10) to the control valve as follows:− For attachment to the NAMUR rib,use an M8 screw (11) and toothed
lock washer directly in the yoke hole.
− For attachment to valves with rodtype yokes, use two U-bolts (15)around the yoke. Align the NAMUR
bracket (10) according to the em-

32bossed scale so that the follower
plate (3) is shifted by half the angle
range to the NAMUR bracket (theslot of the follower plate is centrallyaligned with the NAMUR bracket at
mid valve travel).
3. Mount connecting plate (6) or pressuregauge bracket (7) with pressure gauges
on the positioner, making sure the twoseals (6.1) are seated properly.
4. Select required lever size (1) M, L or XL
and pin position according to the actuator size and valve travel listed in the travel table on page 17.
Should a pin position other than position 35
with the standard M lever be required or an
L or XL lever size be required, proceed asfollows:
5. Fasten the follower pin (2) in the assigned lever hole (pin position as specified in the travel table). Only use the longer follower pin (2) included in themounting kit.
6. Place the lever (1) on the shaft of the positioner and fasten it tight using the disk
spring (1.2) and nut (1.1).
Move lever once all the way as far as it
will go in both directions.
7. Place positioner on the NAMUR bracket
in such a manner that the follower pin(2) rests in the slot of the follower plate(3, 3.1). Adjust the lever (1) correspondingly.
Screw the positioner to the NAMUR
bracket using its two fastening screws.

EB 8384-0 EN

Mounting and start-up

Attachment to rod-type yoke:rods with 20 to 35 mm diameter

15

11

Attachment to
NAMUR rib
10
9
9.1

3.1
Additional bracket for 16
actuators with
2800 cm² and travel≥ 60 mm
1
XL and L lever
Lever
1
Nut
Disk spring
Follower pin
Follower plate2
Follower plate
1.1
Connecting plate
1.2
Seals
1
Pressure gauge bracket
Pressure gauge
mounting kit
9
Stem connector
9.1 Bracket
10 NAMUR bracket
11 Screw
14 Bolt! NOTICE
14.1 Screws
15 U-bolt
Only use the connecting plate (6) included in the
16 Bracket
accessories to connect supply and output.
1
1.1
1.2
2
3
3.1
6
6.1
7
8

14
3
14.1

6.1

6

7

8

Never screw threaded parts directly into housing.

Fig. 8: Attachment according to IEC 60534-6 (NAMUR)

EB 8384-0 EN

33

Mounting and start-up

5.5 Attachment according to
VDI/VDE 3847-1
Î Refer to Fig. 9
The following positioners with air purging of
the actuator's spring chamber can be attached according to VDI/VDE 3847:− Type 3730-0xx0000000x006000− Type 3730-0xx0000000x007000
The Type 3730-1xx0000000x000000 Positioner without air purging of the actuator's
spring chamber can be attached according
to VDI/VDE 3847.
This type of attachment allows the positioner
to be replaced quickly while the process isrunning by blocking the air in the actuator.
The signal pressure can be blocked in the actuator by unscrewing the red retaining screw(20) and turning the air blocker (19) on thebottom of the adapter block.
Attachment to Type 3277 Actuator (seeFig. 9)
Î Required mounting parts and accessories: Table 5 on page 16
Mount the positioner on the yoke as shownin Fig. 9. The signal pressure is routed to theactuator over the connecting plate (12), for
actuators with fail-safe action "actuator stem
extends" internally through a bore in thevalve yoke and for "actuator stem retracts"
through external piping.
Only the Y1 port is required for positioner
attachment. The Y2 port can be used for air
purging of the spring chamber.

34

1. Place follower clamp (3) on the actuator
stem, align it and screw tight so that themounting screw is located in the grooveof the actuator stem.
2. Place the adapter bracket (6) on the positioner and mount using the screws(6.1). Make sure that the seals are correctly seated. For positioners with air
purging, remove the stopper (5) before
mounting the positioner. For positioners
without air purging, replace the screw
plug (4) with a vent plug.
3. For actuators with 355, 700 or 750 cm²,
remove the follower pin (2) on the M lever (1) on the back of the positioner frompin position 35, reposition it in the holefor pin position 50 and screw tight.
For actuators 175, 240 and 350 cm²
with 15 mm travel, keep the follower pin(2) in pin position 35.
4. Insert the formed seal (6.2) in the grooveof the adapter bracket (6).
5. Insert the formed seal (17.1) into theturnboard (17) and mount the turnboard
to the adapter block (13) using thescrews (17.2).
6. Mount the blank plate (18) to the turnboard (17) using the screws (18.1).
Make sure that the seals are correctlyseated.
Note
A solenoid valve can also be mounted inplace of the blank plate (18). The orientationof the turnboard (17) determines the mounting position of the solenoid valve. Alterna-

EB 8384-0 EN

Mounting and start-up

1.1
1.2

13.1
17.1 17 17.2 18 18.1

13

11

1

11.1
3

12

12.1

Exh.

1
1.1
1.2
2
3
4
5
6
6.1
6.2
6.3
11
11.1
12
12.1

Lever
Nut
Disk spring
Follower pin
Follower clamp
Screw plug
Stopper
Adapter bracket
ScrewsFormed seal
Screws
Cover
Vent plug
Connecting plate
Seal

20

2

19

1.1
1.2

6

1

6.2 6.1
4

5
13
13.1
17
17.1
17.2
18
18.1
19
20

Adapter block
ScrewsTurnboard
Formed seal
ScrewsBlank plate
ScrewsAir blocker
Retaining screw

6.3

Fig. 9: Attachment according to VDI/VDE 3847-1 to Type 3277 Actuator

EB 8384-0 EN

35

Mounting and start-up

tively, a restrictor plate can be mounted(u AB 11).
7. Insert the screws (13.1) through the middle holes of the adapter block (13).
8. Place the connecting plate (12) together
with the seal (12.1) onto the screws(13.1) corresponding to the fail-safe action "actuator stem extends" or "actuator
stem retracts". The fail-safe action thatapplies is determined by aligning thegroove of the adapter block (13) with thegroove of the connecting plate (12)(Fig. 10).
9. Mount the adapter block (13) together
with the connecting plate (12) to the actuator using the screws (13.1).
10. Insert the vent plug (11.1) into the Exh.
connection.
11. For fail-safe action "actuator stem extends", seal the Y1 port with a blanking
plug.

For fail-safe action "actuator stem retracts", connect the Y1 port to the signal
pressure connection of the actuator.
Place positioner on the adapter block(13) in such a manner that the followerpin (2) rests on the top of the follower
clamp (3). Adjust the lever (1) correspondingly and open the positioner cover to hold the positioner shaft in positionat the cap or rotary pushbutton.
The lever (1) must rest on the follower
clamp with spring force.
Fasten the positioner to the adapter block(13) using the two fastening screws (6.3).
Make sure the formed seal (6.2) is properly seated.
12. Mount cover (11) on the other side to theyoke. Make sure that the vent plug is located at the bottom when the control
valve is installed to allow any condensed
water that collects to drain off.

Actuator stem
extends
retracts

1213Connecting plate
Adapter block

Z
12

13

Z

Fig. 10: Fail-safe action

36

EB 8384-0 EN

Mounting and start-up

Attachment to NAMUR rib (see Fig. 11)
Î Required mounting parts and accessories: Table 5 on page 16
Î Observe travel tables on page 17.
1. Series 240 Valves, actuator size up to
1400-60 cm²: Screw the two bolts (14)to the bracket of the stem connector or
directly to the stem connector (dependingon the version), place the follower plate(3) on top and use the screws (14.1) tofasten it.
Type 3251 Valve, 350 to 2800 cm²:
Screw the longer follower plate (3.1) tothe bracket of the stem connector or directly to the stem connector (dependingon the version).
Type 3254 Valve, 1400-120 to2800 cm²: Screw the two bolts (14) tothe bracket (16). Fasten the bracket (16)
onto the stem connector, place the follower plate (3) on top and use the screws(14.1) to fasten it.
Mount the positioner on the NAMUR rib
as shown in Fig. 11.
2. For attachment to the NAMUR rib, fasten the NAMUR connection block (10)directly into the existing yoke bore using
the screw and toothed lock washer (11).
Align the marking on the NAMUR valve
connection (on the side marked '1') to
50 % travel.
For attachment to valves with rod-type
yokes using the formed plate (15), whichis placed around the yoke: screw the four
studs into the NAMUR connection block(10). Place the NAMUR connection block

EB 8384-0 EN

on the rod and position the formed plate(15) on the opposite side. Use the nuts
and toothed lock washers to fasten theformed plate onto the studs. Align themarking on the NAMUR valve connection (on the side marked '1') to 50 %travel.
3. Place the adapter bracket (6) on the positioner and mount using the screws(6.1). Make sure that the seals are correctly seated. For positioners with air
purging, remove the stopper (5) before
mounting the positioner. For positioners
without air purging, replace the screw
plug (4) with a vent plug.
4. Select required lever size (1) M, L or XL
and pin position according to the actuator size and valve travel listed in the travel table on page 17.
Should a pin position other than position 35
with the standard M lever be required or an
L or XL lever size be required, proceed asfollows:− Fasten the follower pin (2) in the assigned lever hole (pin position as specified in the travel table). Only use the longer follower pin (2) included in themounting kit.
− Place the lever (1) on the shaft of the positioner and fasten it tight using the disk
spring (1.2) and nut (1.1).
− Move lever once all the way as far as it
will go in both directions.
5. Insert the formed seal (6.2) in the grooveof the adapter bracket.

37

Mounting and start-up

6. Insert the formed seal (17.1) into theturnboard (17) and mount the turnboard
to the adapter block (13) using thescrews (17.2).
7. Mount the blank plate (18) to the turnboard using the screws (18.1). Make
sure that the seals are correctly seated.

nection of the actuator. Seal the Y2 portwith a blanking plug.
For double-acting actuators and actuators with air purging, connect the Y2
port of the adapter block to the signal
pressure connection of the second actuator chamber or spring chamber of theactuator.

Note
A solenoid valve can also be mounted inplace of the blank plate (18). The orientationof the turnboard (17) determines the mounting position of the solenoid valve. Alternatively, a restrictor plate can be mounted(u AB 11).
8. Fasten the adapter block (13) to the
NAMUR connection block using thescrews (13.1).
9. Insert the vent plug into the Exh. connection.
10. Place the positioner on the adapter block(13) in such a manner that the followerpin (2) rests on the top of the follower
plate (3, 3.1). Adjust the lever (1) correspondingly.
Fasten the positioner to the adapter block(13) using the two fastening screws (6.3).
Make sure the formed seal (6.2) is properly seated.
11. For single-acting actuators without air
purging, connect the Y1 port of theadapter block to the signal pressure con-

38

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Mounting and start-up

13

13.1

17.1 17

17.2
18

18.1

11
10

3

16
15
20

Exh.
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower plate
3.1 Follower plate
4 Screw plug
5 Stopper
6 Adapter bracket
6.1 Screws
6.2 Formed seal
6.3 Screws
10 NAMUR
connection block11 Screw with toothed
lock washer

3.1

14

19

14.1

3

1
Adapterblock
13.1 Screws
14 Bolt
14.1 Screws
15 Formed plate
16 Bracket
17 Turnboard
17.1 Formed seal
17.2 Screws

1.1
1.2

13

2

6

6.2 6.1
4

5
18 Dummy plate18.1 Screws
19 Air blocker
20 Retaining screw

6.3

Fig. 11: Attachment according to VDI/VDE 3847-1 to a NAMUR rib

EB 8384-0 EN

39

Mounting and start-up

5.6 Attachment to Type 3510
Micro-flow ValveÎ Refer to Fig. 12
Î Required mounting parts and accessories: Table 4 on page 16.
Î Observe travel tables on page 17.
The positioner is attached to the valve yokeusing a bracket.
1. Fasten the bracket (9.1) to the stem connector.

9. Place the S lever on the positioner shaft
and screw tight using the disk spring(1.2) and nut (1.1).
Move lever once all the way as far as it
will go in both directions.
10. Place positioner on the bracket (10) insuch a manner that the follower pin
slides into the groove of the follower pin(3). Adjust the lever (1) correspondingly.
Screw the positioner to the bracket (10)using both its screws.

2. Screw the two bolts (9.2) to the bracket(9.1) of the stem connector (9), place thefollower plate (3) on top and use thescrews (9.3) for fastening.
3. Mount the travel indication scale (accessories) to the outer side of the yoke using
the hex screws (12.1), ensuring that thescale is aligned with the stem connector.
4. Fasten the hex bar (11) onto the outerside of yoke by screwing the M8 screws(11.1) directly into the holes on the yoke.
5. Fasten the bracket (10) to the hex bar(11) using the hex screw (10.1), washer
and tooth lock washer.
6. Mount connecting plate (6) or pressuregauge bracket (7) with pressure gauges
on the positioner, making sure the twoseals are seated properly.
7. Unscrew the standard M lever (1) including follower pin (2) from the positioner
shaft.
8. Take the S lever (1) and screw the follower pin (2) in the hole for pin position 17.

40

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Mounting and start-up

12.1 11

11.1

10

10.1

9
9.1
3

9.2

9.3
1.1

! NOTICE
Only use the connecting plate (6)included in the accessories to connect
supply and output.
Never screw threaded parts directly
into housing.

6

2
1.2
S lever

1

1
1.1
1.2
2
3
6
6.1
7
8
9
9.1

Lever
Nut
Disk spring
Follower pin
Follower plate
Connecting plate
Seals
Pressure gauge bracket
Pressure gauge
mounting kit
Stem connector
Bracket

9.2
9.3
10
10.1
11
11.1
12.1

Bolt
ScrewsBracketScrew
Hex barScrewsScrews6.1
7
8

Fig. 12: Attachment to Type 3510 Micro-flow Valve

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41

Mounting and start-up

5.7 Reversing amplifier for
double-acting actuators
For the use with double-acting actuators, thepositioner must be fitted with a reversing amplifier:Î SAMSON Type 3710 Reversing Amplifier,u EB 8392
Î If a different reversing amplifier (item no.
1079-1118 or 1079-1119) is used,mount it as described in section 5.7.1.
The following applies to all reversing amplifiers:
The signal pressure of the positioner is supplied at the output 1 of the reversing amplifier. An opposing pressure, which equals therequired supply pressure (Z) when added tothe pressure at output 1, is applied at output
2.
The following relationship applies:
output 1 + output 2 = Supply pressure (Z).
Connect output 1 to the signal pressure connection on the actuator that causes the valve
to open when the pressure rises.

5.7.1

Reversing amplifier(1079-1118 or 10791119)

Î Refer to Fig. 13.
1. Mount the connecting plate (6) from theaccessories to the positioner. Make surethat both O-rings (6.1) are seated correctly.
2. Thread the special nuts (1.3) from the accessories of the reversing amplifier into
the boreholes of the connecting plate.
3. Insert the gasket (1.2) into the recess of
the reversing amplifier and slide both thehollowed special screws (1.1) into theconnecting boreholes A1 and Z.
4. Place the reversing amplifier onto theconnecting plate (6) and screw tight using both the special screws (1.1).
5. Use a screwdriver (8 mm wide) to screw
the enclosed filters (1.6) into the connection boreholes A1 and Z.

Connect output 2 to the signal pressure connection on the actuator that causes the valve
to close when the pressure rises.

! NOTICE
Air can escape uncontrolled from the signal
pressure connection.
Do not unscrew the sealing plug (1.5) out of
the reversing amplifier.

Note
How the outputs are marked depends on thereversing amplifier used:− Type 3710: Output 1/2 = Y1/Y2− 1079-1118 and 1079-1119:
Output 1/2 = A1/A2

Note
The rubber seal (1.4) is not required and canbe removed when the sealing plug is used.

42

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Mounting and start-up

From the positioner
Output 38

Supply 9

A1

Z

A2

Control signals to the actuator
A1

1.3

1.1 1.2

1.4

A2

6.2

Reversing amplifier
Special screws
GasketSpecial nuts
Rubber seal
Stopper
FilterConnecting plate
O-rings
ScrewsSupply 9

6

1.6
1
1.1
1.2
1.3
1.4
1.5
1.6
6
6.1
6.2

Z

Output 38

6.1

1.5

A1

1.3

1.2

1.1

1

1.6

Fig. 13: Mounting a reversing amplifier (1079-1118 or 1079-1119)

EB 8384-0 EN

43

Mounting and start-up

Pressure gauge attachment
The mounting sequence shown in Fig. 13 remains unchanged. Screw a pressure gauge
bracket onto the connections A1 and Z.
Pressure gauge
bracketG¼¼ NPT

1400-7106
1400-7107

Pressure gauges for supply air Z and output
A1 as listed in Table 2 to Table 4.

5.8 Attaching positioners withstainless steel housings
Positioners with stainless steel housings require mounting parts that are completely
made of stainless steel or free of aluminum.
Note
The pneumatic connecting plate and pressure gauge bracket are available in stainlesssteel (order numbers listed below). The
Type 3710 Pneumatic Reversing Amplifier isalso available in stainless steel.
Connecting plate(stainless steel)

G¼
¼ NPT

1400-7476
1400-7477

Pressure gauge
bracket (stainlesssteel)

G¼¼ NPT

1402-0265
1400-7108

Table 1 to Table 5 apply for attaching positioners with stainless steel housings with thefollowing restrictions:
Direct attachment
All mounting kits from Table 2 and Table 3
can be used. The connection block is not required. The stainless steel version of the44

pneumatic connecting plate routes the air internally to the actuator.
Attachment according to IEC 60534-6(NAMUR rib or attachment to rod-type
yokes)All mounting kits from Table 4 can be used.
Connecting plate in stainless steel.

5.9 Air purging function for
single-acting actuators
The instrument air leaving the positioner isdiverted to the actuator spring chamber toprovide corrosion protection inside the actuator. Observe the following:
Direct attachment to Type 3277-5 (stem extends FA/stem retracts FE)
The air purging function is automaticallyprovided.
Direct attachment to Type 3277, 175 to
750 cm²
FA: Remove the stopper (12.2, Fig. 7) at theconnection block and make a pneumaticconnection to the spring chamber on thevented side.
! NOTICE
Mounting possibly incorrect when old
powder-paint-coated aluminum connection blocks are used.
Mount old powder-paint-coated aluminum connection blocks as described in
Attachment according to IEC 60534-6(NAMUR rib or attachment to rod-type
yokes).

EB 8384-0 EN

Mounting and start-up

FE: The air purging function is automaticallyprovided.
Attachment according to IEC 60534-6(NAMUR rib or attachment to rod-type
yokes)The positioner requires an additional port for
the exhaust air that can be connected overpiping. An adapter available as an accessory is used for this purpose:
Threaded bushing G ¼
0310-2619(M20x1.5)¼ NPT 0310-2550

Note
The adapter uses one of the M20x1.5 connections in the housing which means only
one cable gland can be installed.
Should other valve accessories be usedwhich vent the actuator (e.g. solenoid valve,volume booster, quick exhaust valve), this exhaust air must also be included in the purging function. The connection over the adapter at the positioner must be protected with acheck valve (e.g. check valve G ¼, order no.
8502-0597) mounted in the piping. Otherwise the pressure in the positioner housing
would rise above the ambient pressure anddamage the positioner when the exhausting
components respond suddenly.

EB 8384-0 EN

5.10 Setting start-up parameters
After the positioner has been mounted on
the valve, all switches S1 to S10 must be set
to OFF (see Operating controls ofType 3730-0 Positioner on page 53).

5.10.1 Fail-safe position
The switch position of switch S1 depends onthe fail-safe position of the valve:− AIR TO OPEN · Upon air supply failure,
the valve is completely closed by the actuator. As the signal pressure increases atthe positioner output (38), the valve
opens.
− AIR TO CLOSE · Upon air supply failure,
the valve is completely opened by the actuator. As the signal pressure increases atthe positioner output, the valve closes.
To determine the switch position, read theassociated switch position S1 = ON or OFF
from the cover plate at the actuator symbols.
The symbols are read properly when thesymbol shows the actuator on top of thevalve; symbols upside down do not apply.
AIR TO OPEN: Pneumatic connections point
to the right S1 = ON. Pneumatic connections
point to the left S1 = OFF.
AIR TO CLOSE: Pneumatic connections point
to the right S1 = OFF. Pneumatic connections
point to the left S1 = ON.
AIR TO OPEN always applies for double-acting actuators. Proceed as described in section 5.11 to connect the reversing amplifier.

45

Mounting and start-up

5.10.2 Volume restriction Q
MAX BACKMIN SIDEMIN BACKMAX SIDE

Signalpressure

Transittime− For actuators with a signal pressure connection at the back, e.g. Type 3277-5

5.10.3 Travel selection

Q

<1 s

≥1 s

Connection at the sideMIN SIDEMAX SIDE

Connection at theback

MIN BACKMAX BACK* Intermediate settings are not permitted.

Fig. 14: Volume restriction Q

The volume restriction Q serves to adapt the
air output capacity to the size of the actuator:− Actuators with a transit time < 1 s, e.g.
linear actuators with an effective area
smaller than 240 cm², require a restricted air flow rate (MIN).
− Actuators with a transit time ≥ 1 s do not
require the air flow rate to be restricted(MAX).
The position of volume restriction Q also depends on how the signal pressure is routed
at the actuator in SAMSON actuators:'SIDE' inscription– For actuators with a signal pressureconnection at the side, e.g.
Type 3271-5– For actuators from other manufacturers

46'BACK' inscription

At switches S2 and S3, select the travel thatcomes closest to the rated valve travel, taking
into account the pin position. If necessary,
perform a final adaptation as described in
section 7.4.
Pin Travel when SPAN adjuster is set to 0
posi- S2 S3 S2 S3 S2 S3 S2 S3tion OFF OFF ON OFF OFF ON ON ON
17
25

5.3

7.5

10.6

5.3

7.5

10.6

15
21.2

35

7.5

10.6

15

50

10.6

15

21.2

30

70

15

21.2

30

42.4

100

21.2

30

42.4

60

200

42.4

60

84.8

120

5.10.4 Direction of action
At switch S4, set the direction of action w/x.
> > The valve travel x increases as the set
point w increases.
> > The valve travel x decreases as the set
point w increases.
Fail-safe action
AIR TO OPEN>>

Fail-safe action
AIR TO CLOSE

>>

<>
<>

S4
S4

ON
OFF
OFF
ON

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Mounting and start-up

5.10.5 Signal pressure limitation
Set switch S5 to ON to limit the output signal
pressure to 2.4 bar if required by the actuator.

Open

100%

0%

5.10.6 Set point

SwitchS7 S8 S7 S8 S7 S8OFF OFF ON OFF OFF ON

Input mA

4 to 11.9 12.1 to 20

4 to 20

In split-range operation (Fig. 15, below), thecontrol valves work with smaller set point
ranges. The controller output signal is used
to control two control valves, dividing it suchthat the valves move through their entire
travel range at half the input signal range
each (e.g. first valve set to 4 to 11.9 mA,
second valve set to 12.1 to 20 mA). To avoid
overlapping, a dead band of ± 0.1 mA must
be taken into account.

EB 8384-0 EN<<

TravelClosedSet switches S7 and S8 to determine the input signal, i.e. the range of the set point.

<>

4

20 mA
Set point
Input signal

Open

100%

<>

<<

TravelClosed0%

Valve 1

4
Dead band

Valve 2

1220 mA

Fig. 15: Normal or split-range operation

Once all start-up parameters are set:Î Connect the supply air. See section 5.11.
Î Connect the electrical power. See section 5.12.

47

Mounting and start-up

5.11 Pneumatic connections! WARNING
Risk of injury by possible movement of exposed parts (positioner, actuator or valve)
after connecting the signal pressure.
Do not touch or block exposed moving parts.
! NOTICE
Incorrect connection of the supply air will
damage the positioner and will lead to malfunction.
Screw the screw fittings into the connecting
plate, pressure gauge mounting block orconnection block from the accessories.

Output 38

Supply 9

Output 38

Supply 9

The pneumatic ports are located on the backof the positioner (see Fig. 16).
! NOTICE
Risk of malfunction due to failure to comply
with required air quality.
Only use supply air that is dry and free of oil
and dust.
Read the maintenance instructions for upstream pressure reducing stations.
Blow through all air pipes and hoses thoroughly before connecting them.

48

Fig. 16: Pneumatic connections

The pneumatic connections in the connecting
plate, pressure gauge mounting block andconnection block are optionally designed asa bore with ¼ NPT or G ¼ thread. Customary fittings for metal or copper tubing or
plastic hoses can be used.

EB 8384-0 EN

Mounting and start-up

5.11.1 Signal pressure connection
The signal pressure connection depends on
how the positioner is mounted onto the actuator:
Type 3277 ActuatorÎ The signal pressure connection is fixed.
Attachment according to IEC 60534-6(NAMUR)Î For "actuator stem retracts" fail-safe action: connect the signal pressure to theconnection on top of the actuator.
Î For "actuator stem extends" fail-safe action: connect the signal pressure to theconnection on the bottom of the actuator.

5.11.2 Signal pressure gauges
Tip
To monitor the supply air and signal pressure, we recommend mounting pressuregauges.
Mounting the pressure gauges:

tion of action is marked FA or FE or by asymbol.
Actuator stem extends FA (AIR TO OPEN)
Fail-close (for globe and angle valves):
Î Required supply pressure = Upper benchrange value + 0.2 bar, at least 1.4 bar.
Actuator stem retracts FE (AIR TO CLOSE)
Fail-open (for globe and angle valves):
For tight-closing valves, the maximum signal
pressure pstmax is roughly estimated as follows:
pstmax = F +d² · π · ∆p
4·A

[bar]

d = Seat diameter [cm]∆p = Differential pressure across thevalve [bar]A = Actuator area [cm²]F= Upper bench range value of theactuator [bar]If there are no specifications, calculate as
follows:
Î Required supply pressure = Upper benchrange value + 1 bar

Î See section 5.4 and section Fig. 85.11.4 Signal pressure (output)

5.11.3 Supply pressure

The signal pressure at the output (38) of thepositioner can be restricted to approx.
2.4 bar at the DIP switch S5.

The required supply air pressure depends on
the bench range and the actuator's directionof action (fail-safe action).
The bench range is written on the nameplate
either as the bench range or signal pressure
range depending on the actuator. The direc-

EB 8384-0 EN

49

Mounting and start-up

5.12 Electrical connections
For electrical installation, observe the relevant electrotechnical regulations and the accident prevention regulations that apply inthe country of use. In Germany, these are
the VDE regulations and the accident prevention regulations of the employers’ liability
insurance.
! DANGER
Risk of fatal injury due to the formation ofan explosive atmosphere.
The following regulations apply to installationin hazardous areas: EN 60079-14(VDE 0165, Part 1) Explosive Atmospheres –Electrical Installations Design, Selection andErection.
! WARNING
Incorrect electrical connection will render the
explosion protection unsafe.
− Adhere to the terminal assignment.
− Do not undo the enameled screws in or on
the housing.
− Do not exceed the maximum permissible
values specified in the EC type examination certificates when interconnecting intrinsically safe electrical equipment (Ui or
U0, li or I0, Pi or P0, Ci or C0 and Li or L0).

The following applies additionally: For positioners in type of protection Ex tb(Type 3730-05) and type of protection Ex nA(Type 3730-08), the cable glands and blanking plugs must be certified according to
EN 60079-7 (Ex e).
Selecting cables and wires
Observe Clause 12 of EN 60079-14 for installation of the intrinsically safe circuits.
Clause 12.2.2.7 applies when running multicore cables or wires with more than one intrinsically safe circuit.
The radial thickness of the insulation of aconductor for common insulating materials(e.g. polyethylene) must not be smaller than
0.2 mm. The diameter of an individual wire
in a fine-stranded conductor must not be
smaller than 0.1 mm. Protect the conductor
ends against splicing, e.g. by using wire-end
ferrules.
When two separate cables or wires are used
for connection, an additional cable glandcan be installed. Seal cable entries left unused with plugs. Fit equipment used in ambient temperatures below –20 °C with metal
cable entries.

The ambient temperature ranges of the tables in the EC type examination certificate
apply for the assignment between the permissible ambient temperature, temperatureclass, maximum short-circuit currents andmaximum power Pi and P0.

50

EB 8384-0 EN

Mounting and start-up

Equipment for use in zone 2/zone 22
In equipment operated according to type ofprotection Ex nA (non-sparking equipment)
according to EN 60079-15, circuits may beconnected, interrupted or switched while energized only during installation, maintenance or repair.
The special conditions of use mentioned in
the statement of conformity are to be observed for the rated values and the installation of the series-connected fuse for interconnection of Ex nA circuits.
For Ex nA equipment (non-sparking equipment), circuits may be connected, interrupted
or switched while energized only during installation, maintenance or repair.
− Positioners with type of protection Ex nA
or Ex tc can be used with a closed cover(no window) or or with a cover with window.
− The Types 3730-01, 3730-05 and 373008 Positioners are 100 % identical in design, except for the marking and the
housing cover.
− For type of protection Ex nA, the VCC
connection in the interface adapter must
be connected in series with a fuse according to IEC 60127, 250 V F or T witha fuse rating of IN ≤40 mA.

The fuses must be installed outside the hazardous area.
Cable entry
Cable entry with M20x1.5 cable gland, 6 to
12 mm clamping range.
There is a second M20x1.5 threaded hole in
the housing that can be used for additional
connection, when required. The screw terminals are designed for wire cross-sections of
0.2 to 2.5 mm². Tighten the screws by 0.5 to
0.6 Nm.
The wires for the set point must be connectedto the terminals 11 and 12 located in the
housing. Only use a current source.
! NOTICE
An incorrect electrical power supply will
damage the positioner.
Do not connect the positioner to a voltage
source.
Î Observe the relevant regulations for installation in hazardous areas.
! NOTICE
Risk of positioner malfunction.
The set point must not fall below 3.6 mA
while the positioner is running.

− The signal current circuit must be connected in series with a fuse according toIEC 60127-2/VI, 250 V T with a fuserating of IN ≤63 mA.
− The transmitter current circuit must beconnected in series with a fuse according
to IEC 60127-2/VI, 250 V T with a fuserating of IN ≤40 mA.
EB 8384-0 EN

51

Mounting and start-up

Accessories
Cable glands M20x1.5

Order no.

Black plastic(6 to 12 mm clamping range)

8808-1011

Blue plastic(6 to 12 mm clamping range)

8808-1012

Nickel-plated brass(6 to 12 mm clamping range)

1890-4875

Nickel-plated brass(10 to 14 mm clamping range)

1922-8395

Stainless steel 1.4305(8 to 14.5 mm clamping range)

8808-0160

Adapter M20x1.5 to ½ NPT
Powder-coated aluminum

0310-2149

Stainless steel

1400-7114

Î Connect the electrical power (mA signal)as shown in Fig. 17.

Input
Control signal

Fig. 17: Electrical connections

52

EB 8384-0 EN

Operation

6 Operation
Actuator symbols for right attachment

Volumerestriction

DIP
switches

Zero adjuster
Span adjuster

Actuator symbols for left attachment

Fig. 18: Operating controls of Type 3730-0 Positioner

DIP switches S1 to S10

ZERO and SPAN adjusters

The positioner is mainly operated via the DIP
switches, which allow you to set the most important functions.

The ZERO and SPAN potentiometers areused to adjust the starting point (zero) andthe upper range value (span) of the set point.

DIP switches and their functions

Volume restriction Q

S1Actuator fail-safe action

S2/S3

Rated travel of the control valve

S4

Direction of action w/x

S5

Limit output signal pressure to
2.4 bar

S6

Change gain factor

S7/S8

Set range of set point

S9/S10

Activate tight-closing function

EB 8384-0 EN

The volume restriction serves to adapt the air
output capacity to the size of the actuator.
Depending on the air passage at the actuator, two fixed settings are available.

53

Operating the positioner

7 Operating the positioner! NOTICEÎ Adjust the upper range value of the input
signal (e.g. 4, 12 or 20 mA) using theammeter.
Î Turn the SPAN adjuster until the plug
stem moves as far as it will go to the end
position.

Before setting zero, settings using switches
S1 to S5 as well as switches S7 and S8 must
be made first (see section 5.10).

7.4 Activate tight-closing
function

7.1 Setting zero

Î Set SPAN adjuster to 0.
Î Adjust the input signal according to thetable below using an ammeter.
Î Turn ZERO adjuster until the plug stem
just starts to move from its initial position.

Having adjusted zero and span, thetight-closing function (description on
page 13) must be activated at switches S9and S10 to ensure a tight valve shut-off.
AIR TO OPEN

S9: ON

S10: OFF

Direction ofactionSet
point [mA]

Input signal forzero [mA]

AIR TO CLOSE

S9: OFF

S10: ON

Three-way valve

S9: ON

S10: ON>>

4 to 20

4>>4 to 124

Tight-closing function deactivated

S9: OFF

S10: OFF>>

12 to 20

12<>

4 to 20

20<>

4 to 1212<>

12 to 2020

7.2 Reducing gainÎ Move the valve in small steps. If the valve
tends to hunt, set switch S6 to ON to reduce the gain of the control loop.

7.3 Adapting the travel
In case the rated travel of the control valve
does not correspond with the selected travelaccording to the table in section 5.10.3:

54

EB 8384-0 EN

Servicing

8 Servicing
Note
The positioner was checked by SAMSON
before it left the factory.
− The product warranty becomes void if service or repair work not described in these
instructions is performed without prioragreement by SAMSON's After-sales Service department.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.
The positioner does not require any maintenance.

2. Remove the positioner (see section 10).
3. Send the positioner to your nearest
SAMSON subsidiary. SAMSON
subsidiaries are listed on our website atu www.samson.de > Contact.

9 Malfunctions
Î Troubleshooting (see Table 10)
Table 10: Troubleshooting
Description of
fault
Actuator moves
too slowly.

Î Check the supply
pressure.
Î Check the cross-section of
the piping and screw
fittings.
Î Check the configurationof the mounting parts.

Actuator moves
in the wrong
direction.

Î Check piping.
Î Check the configurationof the mounting parts.

Air leaks fromthe positioner.

Î Check the seals in theconnecting plate.

Filters
There are filters with a 100 µm mesh size inthe pneumatic connections for supply andoutput which can be removed and cleaned,
if required.
Supply air pressure reducing stations
The maintenance instructions of any upstream supply air pressure reducing stations
must be observed.

8.1 Preparation for return shipment
Defective positioners can be returned to
SAMSON for repair.

Measures

Note
Contact SAMSON's After-sales Service department for malfunctions not listed in the table.

Proceed as follows to return devices to
SAMSON:
1. Put the control valve out of operation.
See associated valve documentation.

EB 8384-0 EN

55

Decommissioning and removal

9.1 Emergency action

10.1 Decommissioning

Upon failure of the air supply or electric signal, the positioner vents the actuator, causing
the valve to move to the fail-safe position determined by the actuator.

To decommission the positioner before removing it, proceed as follows:

Tip
Emergency action in the event of valve or actuator failure is described in the associatedvalve and actuator documentation.
Î The plant operator is responsible for
emergency action to be taken in theplant.

10 Decommissioning andremoval! DANGER
Risk of fatal injury due to ineffective explosion protection.
The explosion protection becomes ineffective
when the positioner cover is opened.
The following regulations apply to installation in hazardous areas: EN 60079-14(VDE 0165, Part 1).
! NOTICE
The process is disturbed by interrupting
closed-loop control.
Do not mount or service the positioner while
the process is running and only after isolating the plant by closing the shut-off valves.

56

1. Disconnect and lock the air supply andsignal pressure.
2. Open the positioner cover and disconnect the wires for the control signal.

10.2 Removing the positioner
1. Disconnect the wires for the control signal from the positioner.
2. Disconnect the lines for supply air andsignal pressure (not required for direct
attachment using a connection block).
3. To remove the positioner, loosen the threefastening screws on the positioner.

10.3 Disposal
SAMSON is a producer
registered at the following
European institution u https://www.ewrn.org/nationalregisters/national-registers.
WEEE reg. no.:DE 62194439/FR 025665

Î Observe local, national and international refuse regulations.
Î Do not dispose of components, lubricantsand hazardous substances together withyour other household waste.

EB 8384-0 EN

Appendix

Note
We can provide you with a recycling
passport according to PAS 1049
on request. Simply e-mail us ataftersalesservice@samsongroup.com giving
details of your company address.
Tip
On request, we can appoint a service provider to dismantle and recycle the product.

11 Appendix

Required specifications
Please submit the following details:− Order number and position number inthe order− Type, serial number, firmware version,
device version

11.2 Certificates
The certificates valid at the time when these
instructions were published are included on
the next pages.
The latest certificates are available on theInternet at u www.samson.de > Productselector > Valve accessories > Type 3730-0> Downloads > Certificates11.1 After-sales service
Contact SAMSON's After-sales Service department for support concerning service orrepair work or when malfunctions or defects
arise.
E-mail address
You can reach the After-sales Service Department at aftersalesservice@samson.
Addresses of SAMSON AG and its subsidiaries
The addresses of SAMSON AG, its subsidiaries, representatives and service facilities
worldwide can be found on our website(www.samson.de) or in all SAMSON product catalogs.

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Addendum Page 1
Installation Manual for apparatus certified by CSA for use in hazardous locations.
Electrical rating of intrinsically safe apparatus and apparatus for installation in hazardous locations.
Table 1: Maximum values of signal circuit (terminals 11 and 12)

Signal circuit

Ui or Vmax

Ii or Imax

Pi or Pmax

Ci

Li

28V

115mA

1W

5,3nF

0µH

Notes: U0 ≤ Ui or Vmax / I0 ≤ Ii or Imax
P0 or Pmax ≤ Pi or Pmax
Table 2: CSA - certified barrier parameters of signal circuit (terminals 11 and 12)
Supply barrier

Barrier
Signal circuit

Evaluation barrier

V0C

Rmin

V0C

Rmin

≤ 28V

≥ 300Ω

28V

Diode

Table 3: The correlation between temperature classification and permissible ambient
temperature ranges is shown in the table below:
Temperature class

Permissble ambient temperature range

T6

50°C

T5

- 40°C ≤ ta ≤ 70°C

T4

80°C

Intrinsically safe if installed as specified in manufacturer’s installation manual.
CSA- certified for hazardous locations
Ex ia IIC T6: Class I, Zone 0
Class II Div. 1, Groups E, F + G, Class III.

Type 4 Enclosure

Notes:
1.)
The apparatus may be installed in intrinsically safe circuit only when used in conjunction with CSA certified
apparatus. For maximum values of Ui or Vmax; Ii or Imax; Pi or Pmax ;Ci and Li of the various apparatus see Table 1.
2.)

For barrier selection see Table 2.

3.)

The installation must be in accordance with the C. E. C. Part 1.

4.)

Use only supply wires suitable for 5°C above surrounding temperature.

5.)

For CSA Certification, Safety Barrier must be CSA Certified and installed in accordance with C.E.C. Part. 1.
Each pair of I.S. wires must be protected by a shield that is grounded at the I.S. Ground. The shield must
extend as close to the terminals as possible.

Revision Control Number: 1 February 05

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Addendum Page 2
SAFE

LOCATIONLOCATION

Model
3730-03

HAZARDOUS

11+control signal

12-

circuit 1

E

Controller / SupplyE

supply barrier
evaluation barrier

I.S.Ground

Controller CSA - certified.
Supply and evaluation barrier CSA - certified
For the permissible maximum values for the intrinsically safe circuit see Table 1 orfor the permissible barrier parameters for the circuit see Table 2
Cable entry M 20 x 1.5 or metal conduit according to drawing No. 1050 – 0540 T
CSA- certified for hazardous locations
Ex nA II Class I, Zone 2Class II, Div. 2 Groups E, F + G, Class III.

LOCATION

11+

control signal

12-

circuit 1

UNSPECIFIEDAPPARATUS

SAFE

LOCATION

Model 3730-03

HAZARDOUS

e. g. transmitter

Type 4 Enclosure

GroundNotes:
1.)
The installation must be in accordance with the Canadian Electrical Code, Part 1
2.)
For the maximum values for the signal circuit see Table 1 and 2.
3.)
The cables shall be protected by conduits.
4.)
Cable entry only rigid metal conduit according to drawing No. 1050-0540 T

Revision Control Number: 1 February 05

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Addendum to EB 8384-0 EN

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Addendum Page 3
Installation Manual for apparatus approved by FM for use in hazardous locations.
Electrical rating of intrinsically safe apparatus and apparatus for installation in hazardous locations.
Table 1: Maximum values

Signal circuit

Ui or Vmax

Ii or Imax

Pi or Pmax

Ci

Li

28V

115mA

1W

5,3nF

0 µH

Notes: U0 or V0C or Vt ≤ Ui or Vmax / I0 or I0C or It ≤ Ii or Imax
P0 or Pmax ≤ Pi or Pmax
Table 2: FM - approved barrier parameters of solenoid valve circuit
Supply barrier

Barrier
Signal circuit

Evaluation barrier

V0C

Rmin

I0C

V0C

Rmin

I0C

≤ 28V

≥ 300Ω≤ 115mA

28V

#

0mA

Table 3: The correlation between temperature classification and permissible ambient
temperature ranges is shown in the table below:
Temperature class

Permissble ambient temperature range

T6

50°C

T5

- 40°C .≤ ta.≤. 70°C

T4

80°C

Intrinsically safe if installed as specified in manufacturer’s installation manual.
FM- approved for hazardous locations
Class I, Zone 0, A Ex ia IIC T6,
Class I, II, III, Division 1, Groups A, B, C, D, E, F + G

NEMA 4X Enclosure

Notes:
1.) The apparatus may be installed in intrinsically safe circuit only when used in conjunction with the FM
approved apparatus. For maximum values of
Ui or Vmax; Ii or Imax; Pi or Pmax ; Ci and Li of the various apparatus see Table 1.
2.)

The apparatus may be installed in intrinsically safe circuit only when used in conjunction with the FM
approved intrinsically safe barrier. For barrier selection see Table 2.

3.)

Installation shall be in accordance with the National Electrical Code ANSI/NFPA 70 and ANSI/ISA RP
12.06.01

4.)

Use only supply wires suitable for 5°C above surrounding temperature.

Revision Control Number: 1 February 05

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Addendum Page 4
SAFE

LOCATIONLOCATION

Model
3730-03

HAZARDOUS

11+control signal

12-

circuit 1

E

Controller / SupplyE

supply barrier
evaluation barrier

I.S.GroundVersion: Model 3730-03 e/p Positioner.
Supply and evaluation barrier FM/CSA- approved.
For the permissible maximum values for the intrinsically safe circuit see Table 1
For the permissible barrier parameters for the circuit see Table 2
Cable entry M 20 x 1.5 or metal conduit according to drawing No. 1050 – 0540 T
FM- approved for hazardous locations
Class I, Division 2, Groups A, B, C, D
Class II Division 2, Groups F + G, Class III

NEMA 4X Enclosure

HAZARDOUS

SAFE

11+

LOCATION

signal circuit

12Terminal No.

UNSPECIFIEDAPPARATUS
e. g. signal transmitter

Model 3730-03
e/p Positioner

LOCATION (Div. 2)

GroundNotes:
1.)
For the maximum values for the circuit see Table 1 and 2.
2.)

Cable entry only rigid metal conduit according to drawing and 1050-0540 T

3.)

The installation shall be in accordance with the National Electrical Code ANSI/NFPA 70

Revision Control Number: 1 February 05

78

Addendum to EB 8384-0 EN

EB 8384-0 EN

EU Konformitätserklärung / EU Declaration of Conformity /Déclaration UE de conformité
Die alleinige Verantwortung für die Ausstellung dieser Konformitätserklärung trägt der Hersteller/
This declaration of conformity is issued under the sole responsibility of the manufacturer/
La présente déclaration de conformité est établie sous la seule responsabilité du fabricant.
Für das folgende Produkt / For the following product / Nous certifions que le produit

Elektropneumatischer Stellungsregler / Electropneumatic Positioner /Positionneur électropneumatique
Typ/Type/Type 3730-0...
wird die Konformität mit den einschlägigen Harmonisierungsrechtsvorschriften der Union bestätigt /the conformity with the relevant Union harmonisation legislation is declared with/
est conforme à la législation d'harmonisation de l'Union applicable selon les normes:

EMC 2014/30/EU

EN 61000-6-2:2005, EN 61000-6-3:2007+A1:2011, EN 61326-1:2013

RoHS 2011/65/EU

EN 50581:2012

Hersteller / Manufacturer / Fabricant:
SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3D-60314 Frankfurt am Main
Deutschland/Germany/Allemagne

ce_3730-0_de_en_fra_rev07.pdf

Frankfurt / Francfort, 2017-07-29
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Hanno Zager
Leiter Qualitätssicherung/Head of Quality Managment/
Responsable de l'assurance de la qualité

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 60314 Frankfurt am Main

EB 8384-0 EN

Dirk Hoffmann
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklungsorganisation/Development Organization

Telefon: 069 4009-0 · Telefax: 069 4009-1507
E-Mail: samson@samson.de

Revison 07

79

EU Konformitätserklärung / EU Declaration of Conformity /Déclaration UE de conformité
Die alleinige Verantwortung für die Ausstellung dieser Konformitätserklärung trägt der Hersteller/
This declaration of conformity is issued under the sole responsibility of the manufacturer/
La présente déclaration de conformité est établie sous la seule responsabilité du fabricant.
Für das folgende Produkt / For the following product / Nous certifions que le produit

Elektropneumatischer Stellungsregler / Electropneumatic Positioner /Positionneur électropneumatique
Typ/Type/Type 3730-01..
entsprechend der EU-Baumusterprüfbescheingung PTB 03 ATEX 2099 ausgestellt von der/according to the EU Type Examination PTB 03 ATEX 2099 issued by/établi selon le certificat CE d’essais sur échantillons PTB 03 ATEX 2099 émis par:Physikalisch Technische Bundesanstalt
Bundesallee 100
D-38116 Braunschweig
Benannte Stelle/Notified Body/Organisme notifié 0102
wird die Konformität mit den einschlägigen Harmonisierungsrechtsvorschriften der Union bestätigt /the conformity with the relevant Union harmonisation legislation is declared with/
est conforme à la législation d'harmonisation de l'Union applicable selon les normes:

EMC 2014/30/EU

EN 61000-6-2:2005, EN 61000-6-3:2007+A1:2011, EN 61326-1:2013

Explosion Protection 94/9/EC (bis/to 2016-04-19)
Explosion Protection 2014/34/EU (ab/from 2016-04-20)

EN 60079-0:2012/A11:2013,
EN 60079-11:2012, EN 60079-31:2014

RoHS 2011/65/EU

EN 50581:2012

Hersteller / Manufacturer / Fabricant:

ce_3730-01_de_en_fra_rev07.pdf

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3D-60314 Frankfurt am Main
Deutschland/Germany/Allemagne
Frankfurt / Francfort, 2017-07-29
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Hanno Zager
Leiter Qualitätssicherung/Head of Quality Managment/
Responsable de l'assurance de la qualité

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 60314 Frankfurt am Main

80

Dirk Hoffmann
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklungsorganisation/Development Organization

Telefon: 069 4009-0 · Telefax: 069 4009-1507
E-Mail: samson@samson.de

Revison 07

EB 8384-0 EN

EU Konformitätserklärung / EU Declaration of Conformity /Déclaration UE de conformité
Die alleinige Verantwortung für die Ausstellung dieser Konformitätserklärung trägt der Hersteller/
This declaration of conformity is issued under the sole responsibility of the manufacturer/
La présente déclaration de conformité est établie sous la seule responsabilité du fabricant.
Für das folgende Produkt / For the following product / Nous certifions que le produit

Elektropneumatischer Stellungsregler / Electropneumatic Positioner /Positionneur électropneumatique
Typ/Type/Type 3730-05..
entsprechend der EU-Baumusterprüfbescheingung PTB 03 ATEX 2099 ausgestellt von der/according to the EU Type Examination PTB 03 ATEX 2099 issued by/établi selon le certificat CE d’essais sur échantillons PTB 03 ATEX 2099 émis par:Physikalisch Technische Bundesanstalt
Bundesallee 100
D-38116 Braunschweig
Benannte Stelle/Notified Body/Organisme notifié 0102
wird die Konformität mit den einschlägigen Harmonisierungsrechtsvorschriften der Union bestätigt /the conformity with the relevant Union harmonisation legislation is declared with/
est conforme à la législation d'harmonisation de l'Union applicable selon les normes:

EMC 2014/30/EU

EN 61000-6-2:2005, EN 61000-6-3:2007+A1:2011, EN 61326-1:2013

Explosion Protection 94/9/EC (bis/to 2016-04-19)
Explosion Protection 2014/34/EU (ab/from 2016-04-20)

EN 60079-0:2012/A11:2013,
EN 60079-11:2012, EN 60079-31:2014

RoHS 2011/65/EU

EN 50581:2012

Hersteller / Manufacturer / Fabricant:

ce_3730-05_de_en_fra_rev07.pdf

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3D-60314 Frankfurt am Main
Deutschland/Germany/Allemagne
Frankfurt / Francfort, 2017-07-29
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Hanno Zager
Leiter Qualitätssicherung/Head of Quality Managment/
Responsable de l'assurance de la qualité

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 60314 Frankfurt am Main

EB 8384-0 EN

Dirk Hoffmann
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklungsorganisation/Development Organization

Telefon: 069 4009-0 · Telefax: 069 4009-1507
E-Mail: samson@samson.de

Revison 07

81

EU Konformitätserklärung / EU Declaration of Conformity /Déclaration UE de conformité
Die alleinige Verantwortung für die Ausstellung dieser Konformitätserklärung trägt der Hersteller/
This declaration of conformity is issued under the sole responsibility of the manufacturer/
La présente déclaration de conformité est établie sous la seule responsabilité du fabricant.
Für das folgende Produkt / For the following product / Nous certifions que le produit

Elektropneumatischer Stellungsregler / Electropneumatic Positioner /Positionneur électropneumatique
Typ/Type/Type 3730-08..
entsprechend der EU-Baumusterprüfbescheingung PTB 03 ATEX 2179 X ausgestellt von der/according to the EU Type Examination PTB 03 ATEX 2179 X issued by/établi selon le certificat CE d’essais sur échantillons PTB 03 ATEX 2179 X émis par:Physikalisch Technische Bundesanstalt
Bundesallee 100
D-38116 Braunschweig
Benannte Stelle/Notified Body/Organisme notifié 0102
wird die Konformität mit den einschlägigen Harmonisierungsrechtsvorschriften der Union bestätigt /the conformity with the relevant Union harmonisation legislation is declared with/
est conforme à la législation d'harmonisation de l'Union applicable selon les normes:

EMC 2014/30/EU

EN 61000-6-2:2005, EN 61000-6-3:2007+A1:2011, EN 61326-1:2013

Explosion Protection 94/9/EC (bis/to 2016-04-19)
Explosion Protection 2014/34/EU (ab/from 2016-04-20)

EN 60079-0:2012/A11:2013,
EN 60079-15:2010, EN 60079-31:2014

RoHS 2011/65/EU

EN 50581:2012

Hersteller / Manufacturer / Fabricant:

ce_3730-08_de_en_fra_rev07.pdf

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3D-60314 Frankfurt am Main
Deutschland/Germany/Allemagne
Frankfurt / Francfort, 2017-07-29
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Hanno Zager
Leiter Qualitätssicherung/Head of Quality Managment/
Responsable de l'assurance de la qualité

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 60314 Frankfurt am Main

82

Dirk Hoffmann
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklungsorganisation/Development Organization

Telefon: 069 4009-0 · Telefax: 069 4009-1507
E-Mail: samson@samson.de

Revison 07

EB 8384-0 EN

EB 8384-0 EN

83

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samson.de · www.samson.de2023-10-13 · English

EB 8384-0 EN