EB 4749 EN
Translation of original instructions

Type 4749 Position Transmitter

Firmware version 1.00.04
Edition March 2023

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. The images shown inthese instructions are for illustration purposes only. The actual product may vary.
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(aftersalesservice@samsongroup.com).

Documents relating to the device, such as the mounting and operating
instructions, are available on our website at www.samsongroup.com >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! NOTICE
Property damage message or malfunction
Note
Additional information
Tip
Recommended action

EB 4749 EN

Contents

1
1.1
1.2
1.3

Safety instructions and measures.................................................................1-1
Notes on possible severe personal injury.......................................................1-3
Notes on possible personal injury.................................................................1-4
Notes on possible property damage..............................................................1-5

2
2.1
2.2
2.3

Markings on the device...............................................................................2-1
Nameplate..................................................................................................2-1
Article code.................................................................................................2-2
Firmware version.........................................................................................2-3

3
3.1
3.2
3.3
3.3.1

Design and principle of operation................................................................3-1
Device overview and operating controls.........................................................3-1
Technical data.............................................................................................3-2
Dimensions in mm........................................................................................3-5
Fixing levels according to VDI/VDE 3845 (September 2010)..........................3-6

4
4.1
4.2
4.3
4.4

Shipment and on-site transport....................................................................4-1
Accepting the delivered goods......................................................................4-1
Removing the packaging from the position transmitter.....................................4-1
Transporting the position transmitter..............................................................4-1
Storing the position transmitter......................................................................4-1

5
5.1
5.2
5.2.1
5.3
5.4
5.5
5.6
5.6.1
5.6.2
5.7
5.8

Installation..................................................................................................5-1
Installation conditions...................................................................................5-1
Preparation for installation............................................................................5-2
Lever and pin position..................................................................................5-2
Direct attachment to Type 3277 and Type 3277-5 Actuators............................5-4
Attachment according to IEC 60534-6 (NAMUR rib)......................................5-6
Attachment to Type 3510 Micro-flow Valve....................................................5-8
Attachment to rotary actuators according to VDI/VDE 3845.........................5-10
Light version..............................................................................................5-10
Heavy-duty version....................................................................................5-12
Establishing electrical connections...............................................................5-14
Mounting accessories.................................................................................5-17

6
6.1
6.2

Operation...................................................................................................6-1
Operator keys and menu structure.................................................................6-1
Locking the configuration..............................................................................6-3

EB 4749 EN

Contents

7
7.1
7.2
7.2.1
7.2.2

Start-up......................................................................................................7-1
Determining the mounting situation...............................................................7-2
Determining the position at 4 mA..................................................................7-2
Determining the position at 20 mA................................................................7-3
Issuing a test current.....................................................................................7-4

8
8.1

Operation...................................................................................................8-1
Resetting the position transmitter to default settings.........................................8-2

9
9.1
9.2

Malfunctions...............................................................................................9-1
Troubleshooting...........................................................................................9-1
Emergency action........................................................................................9-1

10
10.1

Servicing..................................................................................................10-1
Periodic inspection and testing of the position transmitter..............................10-2

11Decommissioning......................................................................................11-1

12

Removal...................................................................................................12-1

13
13.1
13.2

Repairs.....................................................................................................13-1
Servicing explosion-protected devices..........................................................13-1
Returning devices to SAMSON...................................................................13-2

14

Disposal....................................................................................................14-1

15

Certificates ...............................................................................................15-1

16
16.1

Annex......................................................................................................16-1
After-sales service......................................................................................16-1

EB 4749 EN

Safety instructions and measures

1 Safety instructions and measures
Intended use
The SAMSON Type 4749 Position Transmitter is mounted onto control valves and converts
the linear or rotary motion of a control valve into a 4 to 20 mA standardized signal. The device is designed to operate under exactly defined conditions (e.g. temperature). Therefore,
operators must ensure that the position transmitter is only used in applications where the operating conditions correspond to the technical data. In case operators intend to use the position transmitter in other applications or conditions than specified, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use thedevice for its intended purpose or for damage caused by external forces or any otherexternal factors.
Î Refer to the technical data for limits and fields of application as well as possible uses.
Reasonably foreseeable misuse
The Type 4749 Position Transmitter 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 described in these instructions
Qualifications of operating personnel
The position transmitter must be mounted, started up and serviced by fully trained andqualified personnel only; the accepted industry codes and practices must be observed.
According to these mounting and operating instructions, trained personnel refers toindividuals who are able to judge the work they are assigned to and recognize possible
hazards due to their specialized training, their knowledge and experience as well as theirknowledge of the applicable standards.
Explosion-protected versions of this device must be operated only by personnel who has
undergone special training or instructions or who is authorized to work on explosionprotected devices in hazardous areas.

EB 4749 EN

1-1

Safety instructions and measures

Personal protective equipment
No personal protective equipment is required for the direct handling of the position transmitter. Work on 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.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the control valve by the process medium, the operating pressure, the signal pressure or by moving parts by taking appropriate precautions. Plant
operators and operating personnel must observe all hazard statements, warning and caution
notes in these mounting and operating instructions, especially for installation, start-up andservice work.
If inadmissible motions or forces are produced in the pneumatic actuator as a result of the
supply pressure, it must be restricted using a suitable supply pressure reducing station.
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 parties 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
Devices with a CE marking fulfill the requirements of the Directives RoHS 2011/65/EU as
well as 2014/30/EU and, depending on the version, 2014/34/EU for explosion-protected
applications. This EU declaration of conformity is included in the annex of this document.

1-2

EB 4749 EN

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 position transmitter is mounted (valve, actuator, valve accessories etc.).

1.1 Notes on possible severe personal injury! DANGER
Risk of fatal injury due to the ignition of an explosive atmosphere.
Incorrect installation, operation or maintenance of the position transmitter in potentiallyexplosive atmospheres may lead to ignition of the atmosphere and ultimately to death,even with a harmless supply voltage.
Î For mounting and electrical installation in hazardous areas, observe the explosion
protection approvals as well as the relevant electrotechnical regulations and theaccident prevention regulations that apply in the country of use. EN 60079-14
applies in Europe.
Î Do not connect the electrical supply before mounting is completed.
Î Installation, operation or maintenance of the position transmitter must only be
performed by personnel with qualifications according to Clause 4.5 of IEC 60079-14
who has undergone special training or instructions or who is authorized to work on
explosion-protected devices in hazardous areas.
Risk of fatal injury as a result of electrostatic discharge at the device.
An electric spark generated by electrostatic discharge may lead to ignition of a potentially explosive atmosphere and cause death.
Î In hazardous areas, mount the device in such a way that electrostatic charging cannot
take place.
Loss of the explosion protection due to damage to the cover's thread and/or theconnecting thread.
Î Do not open devices with flameproof enclosures while they are energized.

EB 4749 EN

1-3

Safety instructions and measures

1.2 Notes on possible personal injury! WARNING
Crush hazard arising from moving parts on the valve and actuator.
Control valves contain moving parts (actuator and plug stem), which can injure hands or
fingers if inserted into the valve.
Î Do not touch any moving valve parts while the control valve is in operation.
Î Before performing any mounting or installation work on the position transmitter, put thecontrol valve out of operation by disconnecting and locking the supply and control
signal.
Incorrect electrical connection will render the explosion protection unsafe.
Î Adhere to the terminal assignment.
Î Do not undo the enameled screws.
Î 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 use of unapproved cable glands will render the explosion protection unsafe.
Î For devices with flameproof enclosure, only use cable glands and screw plugs which
are approved for type of protection Ex d and the certified temperature range.
Opening the position transmitter in potentially explosive dust atmospheres will render
the explosion protection unsafe.
Î Do not open the enclosure cover of the position transmitter in potentially explosive dust
atmospheres.

1-4

EB 4749 EN

Safety instructions and measures

1.3 Notes on possible property damage! NOTICE
Risk of malfunction due to incorrect mounting parts/accessories or incorrect assignmentof lever and pin position.
Î Only use mounting parts/accessories listed in these mounting and operating instructions to mount the position transmitter.
Î Observe the type of attachment.
Î Observe the assignment between lever and pin position.
Risk of malfunction due to calibration not being performed.
The zero and span calibration allow the position transmitter to be adapted to the mounting
situation. The position transmitter is only ready for operation after the zero and span havebeen calibrated.
Î Perform calibration before initial start-up.
Î Calibrate the position transmitter after changing the mounting position.
Risk of position transmitter damage due to incorrect grounding of the electric welding
equipment.
Î Do not ground electric welding equipment near to the position transmitter.

EB 4749 EN

1-5

1-6

EB 4749 EN

Markings on the device

2 Markings on the device
2.1 Nameplate
Explosion-protected version

Version without explosion protection

Types 4749-11x and 4749-21x

All types

4749

4749

Analog position transmitter

0044

6

WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD** See EU Type Examination Certificate for further values
7

FirmwareModel 4749Var.-ID

Hardware1

Serial no.

SAMSON AG D-60314 Frankfurt

2
5

Made in Germany

Type 4749-18x

4749

Analog position transmitter
6a

6b

6c

6d

0044

WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD** See EU Type Examination Certificate for further values
7

FirmwareModel 4749Var.-ID

Hardware

1

1)

2

3
4

SAMSON AG D-60314 Frankfurt

Serial no.

See technical data for ambient temperature
FirmwareModel 4749Var.-ID
Serial no.

Hardware

1

2

3
4
5

SAMSON AG D-60314 Frankfurt

3
4

Analog position transmitter

Made in Germany

1 Firmware version
2 Hardware version
3 Model number
4 Configuration ID
5 Serial number 1)
6 Type of protection code
6a Checkbox for type of protection Ex i
6b Type of protection Ex i
6c Checkbox for type of protection
Ex d
6d Type of protection Ex d
7 Temperature limits in the test certificates for explosion-protected devices

5

Made in Germany

The first two figures of the serial number in reverse order indicate the year of manufacture(example: serial number 71xxxxx  Year of manufacture = 2017).

Type of protection code for Type 4749-18x
Î Before mounting the position transmitter, check the box for the type of protection required
for the ambient conditions on the nameplate (checkbox 6a for type of protection Ex i orcheckbox 6c for type of protection Ex d).

EB 4749 EN

2-1

Markings on the device

2.2 Article code
Position transmitter

Type 4749- x

x

x

x

0

x

x

x

x

0

0

x

x

x

x

VersionAnalog position transmitter0

Explosion protection
Without

0

0

0

ATEX

II 2 G Ex ia IIC T6...T4 Gb/
II 2 D Ex ia IIIC T85 °C Db

1

1

0

IECEx

Ex ia IIC T6...T4 Gb/
Ex ia IIIC T85 °C Db

1

1

1

ATEX

II 2 G Ex ia IIC T6...T4 Gb
II 2 D Ex ia IIIC T85 °C Db
or
II 2 G Ex db IIC T6…T4 Gb
II 2 D Ex tb IIIC T80 °C Db

1

8

0

IECEx

Ex ia IIC T6…T4 Gb
Ex ia IIIC T85 °C Db
orEx db IIC T6…T4 Gb
Ex tb IIIC T80 °C Db

1

8

1

ATEX

II 2 G Ex db IIC T6...T4 Gb/
II 2 D Ex tb IIIC T80 °C Db

2

1

0

IECEx

Ex db IIC T6...T4 Gb/
Ex tb IIIC T80 °C Db

2

1

1

Electrical threaded connections
M20x1.5

0

½ NPT

1

Enclosure material
Aluminum (standard)0

Special applications
Without

0 0/1

SIL

1

2-2

3

EB 4749 EN

Markings on the device

Position transmitter

Type 4749- x

x

x

x

0

x

x

x

x

0

0

x

x

9

9

x

x

Temperature range–20 to +85 °C (standard)

0–40 to +85 °C (versions with metal cable glands)

1–35 to +75 °C (SIL version with metal cable glands)

3

Hardware version
1.00.00
Firmware version
1.00.0298

1.00.0497

2.3 Firmware version
Firmware revisions
1.00.02 (old)1.00.04 (new)Certified firmware for use in safety-instrumented systems

EB 4749 EN

2-3

2-4

EB 4749 EN

Design and principle of operation

3 Design and principle of operation
The Type 4749 Position Transmitter converts
the linear or rotary motion of a control valve
into an electric 4 to 20 mA standardized signal.
The angle of the position transmitter's axis ismeasured by the magnetoresistive measuringsystem and converted into an electric signal.

Two pushbuttons are used to operate the device and change device settings. Two LEDs
(red and green) indicate the menu items andsettings.
To operate the position transmitter, atransmitter supply voltage of UB = 12 to 36 V
is required for the 4 to 20 mA measuring
circuit.

3.1 Device overview and operating controls
1
2

4

5

3
1
2
3
4
5
6
7
8
9
10

8
Enclosure cover
Stop screw
Grounding connection (external)
 key
 key
Red LED
Green LED
Terminal
Grounding connection (internal)
Shaft locking

6

7

+–

9

10

Fig. 3-1: Operating controls

EB 4749 EN

3-1

Design and principle of operation

3.2 Technical data
Type 4749 Position Transmitter
Measuring range
Measurement method

Magnetoresistive measuring system

Measured travel for

Direct attachment to Type 3277:
3.6 to 30 mm
Attachment according to IEC 60534-6 (NAMUR): 5 to 300 mm
Attachment to rotary actuators:
24 to 100°

Power supply
Input voltage

12 to 36 V DC

Output4 to 20 mA · Two-wire device, reverse polarity protection

Residual current≤3.6 mA

Permissible load RB in Ω

RB = (UB – 12 V)/0.020 A

Static destruction limit

38 V DC, 30 V AC

Power consumption<0.2 W

Measuring accuracy
Reference conditions

Calibrated with U = 24 V DC, TU = 20 °C

Zero error<0.1 % according to DIN EN 60770

Hysteresis≤0.1 % according to DIN EN 60770

Nonlinearity<0.3 % according to DIN EN 60770

Effect of supply voltage on
zero and span

<0.05 % according to DIN EN 60770

Effect of ambient temperatureon zero and span

<0.1 %/10 K according to DIN EN 60770

Long-term stability<0.1 % according to DIN EN 60770

Start-up time

1200 ms

Output rate

1 ms

3-2

EB 4749 EN

Design and principle of operation

Environmental conditions and permissible temperatures
Permissible environmental conditions according to EN 60721-3
Storage

1K6 (relative humidity ≤95 %)Transport

2K4

Operation

4K2 or 4K3 (depending on the temperature range)–20 to +85 °C:–40 to +85 °C:

All versions
With metal cable glands

Observe the limits in the test certificate for explosion-protected versions.
Resistance to vibration
Vibrations (sinusoidal)

According to DIN EN 60068-2-6:
2 to 9 Hz; 3.5 mm amplitude
10 to 200 Hz; 10 m/s² acceleration
200 to 500 Hz; 15 m/s² acceleration

Noise

According to DIN EN 60068-2-64:
10 to 200 Hz; amplitude 1 (m/s²)²/Hz
200 to 2000 Hz; amplitude 0.3 (m/s²)²/Hz

Requirements
EMC

Complying with EN 61000-6-1, EN 61000-6-2, EN 61000-6-3,
EN 61000-6-4, EN 61000-6-7, EN 61326 and NAMUR Recommendation NE 21

Degree of protection

IP 66

Conformity
Electrical connections
Cable glands

M20x1.5 or ½ NPT

Terminals

Screw terminals for 0.2 to 2.5 mm² wire cross-section

Explosion protection
ATEX, IECEx

See “Summary of explosion protection approvals” on page 3-4.

Materials
Enclosure and coverDie-cast aluminum EN AC-44300/EN AC-43000 according to
DIN EN 1706, chromate and powder coating

Cable glands

Polyamide, nickel-plated brass

Other external parts

Stainless steel 1.4301/1.4310 + 1.4404/1.4409 (316 L)

Weight0.7 kgEB 4749 EN

3-3

Design and principle of operation

Summary of explosion protection approvals
Type

Certification
EC type examination certificate

4749-1104749-111

IECEx

EC type examination certificate

4749-1804749-181

IECEx

EC type examination certificate

4749-210
4749-211

3-4

IECEx

Type of protection
Number

KIWA 18ATEX0031 X

Date

2019-01-09

NumberIECEx KIWA 18.0014X

Date

2019-01-09

Number

KIWA 19ATEX0038 X

Date

2019-10-10

NumberIECEx KIWA 19.0022X

Date

2019-10-10

Number

KIWA 18ATEX0036 X

Date

2018-11-11

NumberIECEx KIWA 18.0017X

Date

2018-11-11

II 2 G Ex ia IIC T6...T4 Gb/
II 2 D Ex ia IIIC T85 °C Db
Ex ia IIC T6...T4 Gb/
Ex ia IIIC T85 °C Db
II 2 G Ex ia IIC T6…T4 Gb
II 2 D Ex ia IIIC T85 °C Db
or
II 2 G Ex db IIC T6…T4 Gb
II 2 D Ex tb IIIC T80 °C Db
Ex ia IIC T6…T4 Gb
Ex ia IIIC T85 °C Db
orEx db IIC T6…T4 Gb
Ex tb IIIC T80 °C Db
II 2 G Ex db IIC T6...T4 Gb/
II 2 D Ex tb IIIC T80 °C Db
Ex db IIC T6...T4 Gb/
Ex tb IIIC T80 °C Db

EB 4749 EN

Design and principle of operation

40

94
77

3.3 Dimensions in mm

30

99
80

EB 4749 EN

3-5

Design and principle of operation

3.3.1

Fixing levels according to VDI/VDE 3845 (September 2010)
Mmin
Fixing level 2 (bracket surface)

C

25

M6

Fixing level 1 (actuator surface)

Dimensions in mm

BØd

Actuator

Size

A

B

C

Ød

Mmin

D1)

AA0

50

25

15

5.5 for M5

66

50

AA1

80

30

20

5.5 for M5

96

50

ØD

AA2

80

30

30

5.5 for M5

96

50

A

AA3

130

30

30

5.5 for M5

146

50

AA4

130

30

50

5.5 for M5

146

50

AA5

200

50

80

6.5 for M6

220

50

1)

3-6

Flange type F05 acc. to DIN EN ISO 5211

EB 4749 EN

Shipment and on-site transport

4 Shipment and on-sitetransport

4.3 Transporting the positiontransmitter

The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.

Transport instructions

4.1 Accepting the delivered
goods− Protect the position transmitter against
moisture and dirt.

After receiving the shipment, proceed as follows:
1. Check the scope of delivery. Check thatthe specifications on the nameplate andon the position transmitter itself matchthe specifications in the delivery note.
See the 'Markings on the device' section
for nameplate details.
2. Check the shipment for transportation
damage. Report any damage to
SAMSON and the forwarding agent(refer to delivery note).

4.2 Removing the packaging
from the positiontransmitter
Observe the following sequence:Î Do not remove the packaging until
immediately before installation of theposition transmitter.

− Protect the position transmitter against
external influences (e.g. impact).

− Observe transport temperaturedepending on the permissible ambient
temperature (see the 'Design andprinciple of operation' section).

4.4 Storing the position transmitter! NOTICE
Risk of damage to the position transmitter
due to improper storage.
Î Observe the storage instructions.
Î Avoid long storage times.
Î Contact SAMSON in case of different
storage conditions.
! NoteWe recommend regularly checking theprevailing storage conditions during longstorage periods.

Î Dispose and recycle the packaging inaccordance with the local regulations.

EB 4749 EN

4-1

Shipment and on-site transport

Storage instructions− Protect the position transmitter against
external influences (e.g. impact, shocks,
vibration).
− Do not damage the corrosion protection(coating).
− Protect the position transmitter against
moisture and dirt. In damp spaces,
prevent condensation. If necessary, use adrying agent or heating.
− Observe storage temperature dependingon the permissible ambient temperature(see the 'Design and principle of operation' section).
− Do not place any objects on the positiontransmitter.

4-2

EB 4749 EN

Installation

5 Installation
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.
! DANGER
Risk of fatal injury as a result of electrostatic discharge at the device.
Î In hazardous areas, mount the device insuch a way that electrostatic charging
cannot take place.
! WARNING
Crush hazard arising from moving parts on
the valve and actuator.
Î Before performing any mounting or installation work on the position transmitter, put the control valve out of operation
by disconnecting and locking the supply
and control signal.
The position transmitter is suitable for the following types of attachment:− Direct attachment to SAMSONType 3277 Actuator− Attachment to actuators according toIEC 60534-6 (NAMUR rib)
− Attachment to Type 3510 Micro-flow
Valve− Attachment to rotary actuators according
to VDI/VDE 3845

! NOTICE
Risk of malfunction due to incorrect mounting parts/accessories or incorrect assignment of lever and pin position.
Î Only use the accessories listed in section 5.8 to mount the position transmitter.
Î Observe the type of attachment.
Î Observe the assignment between leverand pin position.
Type 4749-18x only:Î Before mounting the position transmitter,check the box for the type of protection
required for the ambient conditions on
the nameplate (checkbox 6a for type ofprotection Ex i or checkbox 6c for type ofprotection Ex d). See the 'Markings on
the device' section.

5.1 Installation conditions
Work position
The work position for the position transmitteris the front view onto the operating controlson the position transmitter seen from the position of operating personnel.
Plant operators must ensure that, after installation of the position transmitter, the operating personnel can perform all necessary
work safely and easily access the device
from the work position.
Mounting orientation
The position transmitter may be installed inany position. The following applies concerning the installation:

EB 4749 EN

5-1

Installation

Î On mounting, make sure that 300 mm ormore clearance is kept above the enclosure cover.

5.2 Preparation for installation
Before installation, make sure the following
conditions are met:
− The position transmitter is not damaged.
Proceed as follows:Î Lay out the necessary material and tools
to have them ready during installationwork.
Î Put the control valve out of operation bydisconnecting and locking the supply
and control signal.
Î Adjust correct lever and pin position (seesection 5.2.1).

5.2.1

1. Place the lever (1) in mid-position andhold it in place. Unthread the nut (1.1)
and remove the lever together with thedisk spring (1.2) from the shaft.
Î Do not remove the tab washer (1.3).
2. Remove the follower pin (2) from its pin
position and move it to the hole for therecommended pin position (according totravel tables) and screw tight. Only use
the longer follower pin included in themounting kit.
3. Place the lever (1) on the shaft of the position transmitter and fasten it tight using
the disk spring (1.2) and nut (1.1).
1.1

2

1.2
1

Lever and pin position

1.3

The position transmitter is adapted to theactuator and to the rated travel by the leveron the bottom of the position transmitter andthe pin inserted into the lever. The travel
tables show the maximum adjustment range
at the position transmitter.
The travel that can be implemented at thevalve is additionally restricted by the required compression of the actuator springs.
If a pin position other than position 35 withthe standard M lever is required or a different lever size is required, proceed as follows(see Fig. 5-1):

5-2

Fig. 5-1: Changing the pin position or
exchanging the lever

EB 4749 EN

Installation

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 rib) are available asaccessories in the mounting kits.
Direct attachment to Type 3277-5 and Type 3277 Actuators
Actuator area
[cm²]

Rated travel[mm]

Required
lever

Assigned pin
position

120

7.5

M

25

120/175/240/350

15

M

35

355/700/750

30

M

50

Required
lever

Assigned pin
position

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

Other control
valvesActuator area
[cm²]

Rated travel[mm]

Max. travel
[mm]

120
with Type 3510
Valve

7.5

17

S

17

120

7.5

25

M

25

120/175/240/350

15

35

M

35

700/750

7.5

35

M

35

355/700/750

15 and 30

50

M

50

30

70

L

70

60

100

L

100

120

200

XL

200

Opening angle

Required
lever

Assigned pin
position

to

M

90°

1000/1400/2800
1400/2800

Attachment according to VDI/VDE 3845 to rotary actuators

0

EB 4749 EN

100°

5-3

Installation

5.3 Direct attachment toType 3277 andType 3277-5 ActuatorsÎ See Fig. 5-2 and Fig. 5-3
Î Required mounting parts and accessories:
see section 5.8.
1. Place follower clamp (4) on the actuator
stem, align it and screw tight so that thefastening screw (3) is located in thegroove of the actuator stem.
2. Fasten the mounting plate (1) onto theactuator yoke using both fastening
screws (2).

(in cases where this is not possible,
mount it in the horizontal position) when
the control valve is installed to allow any
condensed water that collects to drainoff.
8. For Type 3277 Linear Actuators with "actuator stem retracts" fail-safe action,screw a vent plug (7) into the connection
at the side of the yoke.
9. Mount the enclosure cover. Check the
O-ring for damage and replace it, if necessary.
10. Lock the enclosure cover by unscrewing
the stop screw.

3. Check the pin position of the follower pin(2) on the lever (1). Refer to travel tables
for type of attachment. If necessary,change the pin position (see section 5.2.1).
4. Screw the stop screw into the housing
cover and unscrew the cover.
5. Place the position transmitter on themounting plate so that the follower pin
rests on the top of the follower clamp (4):Î Adjust the lever correspondingly andinsert a thin screwdriver into the hole tolock the shaft in place. Keep thescrewdriver in the hole to lock inposition.
6. The lever must rest on the follower clamp
with spring force. Fasten the positiontransmitter onto the actuator yoke using
the four fastening screws (5).
7. Mount cover (6) on the other side. Make
sure that the vent plug faces downward

5-4

Shaft locking
Stop screw (cover)Fig. 5-2: Shaft locking and fastening cover

EB 4749 EN

Installation

1
7
2
6

3
4

XL leverL lever

M lever

1
2
3
4
5
6
7

Mounting plate
Fastening screw
Fastening screw
Follower clamp
Fastening screw
Cover
Vent plug

5

Fig. 5-3: Mounting onto Type 3277 Actuator and Type 3277-5 Actuators

EB 4749 EN

5-5

Installation

5.4 Attachment according toIEC 60534-6 (NAMUR rib)
Î See Fig. 5-2 and Fig. 5-4
Î Required mounting parts and accessories:
see section 5.8.
1. Check the pin position of the follower pin(2) on the lever (1). Refer to travel tables
for type of attachment. If necessary,change the pin position (see section 5.2.1).
2. Screw the stop screw into the enclosure
cover and unscrew the cover.
3. Fasten the position transmitter onto thebracket (2).
4. Screw the two bolts (3) to the bracket ofthe stem connector, place the follower
plate (4) on top and use the screws forfastening.
5. Place the bracket with position transmitter on the NAMUR rib of the valve insuch a manner that the follower pin (7)rests in the slot of the follower plate (4):Î Adjust the lever correspondingly andinsert a thin screwdriver into the hole tolock the shaft in place. Keep thescrewdriver in the hole to lock inposition.
6. Align the middle of the bracket to the
50 % marking on the travel indicatorscale and fasten it using its screw (1) onto the valve.

5-6

EB 4749 EN

Installation

1

2
3
4

5
6
7
8
9
1
2
3
4
5
6
7
8
9
10

Fastening screw
Bracket
Bolt
Follower plate
XL leverL lever
Follower pin
Nut
Disk spring
Tab washer

M lever

10Fig. 5-4: Attachment according to IEC 60534-6 (NAMUR)

EB 4749 EN

5-7

Installation

5.5 Attachment to Type 3510
Micro-flow ValveÎ See Fig. 5-5
Î Required mounting parts and accessories:
see section 5.8.
1. Adapt the mounting position as described in section 5.2.1.
Î Select the S lever (6) from the accessories
and mount it onto the position transmitter.
Î Screw the follower pin into the pin position 17.
2. Fasten the position transmitter on thebracket (3).
3. Place follower clamp (1) on the valve
stem connector, align at a right angle
and screw tight.
4. Position the bracket (3) with the positiontransmitter on the valve yoke and screw
tight, making sure the follower pin (2)slides into the groove of the follower
clamp (1).

5-8

EB 4749 EN

Installation

1

3

2

4
5
6
7

1
2
3
4
5
6
7
8

Follower clamp
Follower pin
BracketNutDisk spring
Lever
Tab washer
NutFig. 5-5: Attachment to Type 3510 Micro-flow ValveEB 4749 EN

5-9

Installation

5.6 Attachment to rotary actuators according to VDI/
VDE 3845
5.6.1

Light version

Î See Fig. 5-6
Î Required mounting parts and accessories:
see section 5.8.
1. Place follower clamp (2) on the slotted
actuator shaft or spacer.
2. Place coupling wheel (3) with flat side
facing the actuator on the follower clamp(2). Align slot so that it matches the direction of rotation when the valve is in its
closed position.

et (5) and screw it tight. Taking the actuator's direction of rotation into account,adjust lever (1) so that it engages in theslot of the coupling wheel (3) with its follower pin.
Î Adjust the lever correspondingly and insert a thin screwdriver into the hole tolock the shaft in place (see Fig. 5-2).
Keep the screwdriver in the hole to lockin position.
Î Make sure that the lever (1) is parallel tothe long side of the position transmitter
when the rotary actuator is at half its angle of rotation.
8. Stick the scale plate on the coupling
wheel so that the arrow tip indicates theclosed position and it can be easily readwhen the valve is installed.

3. Fasten the coupling wheel and follower
clamp tightly onto the actuator shaft using screw and disk spring.
4. Fasten the bottom pair of brackets (4)with the bends pointing either facing to
the inside (80 mm) or to the outside(130 mm) (depending on the actuatorsize). Position the top pair of brackets (5)and fasten.
5. Unscrew the standard follower pin fromthe position transmitter's M lever (1). Use
the metal follower pin (Ø 5 mm) includedin the mounting kit and screw tight into
the hole for pin position 90°.
6. Fasten the position transmitter onto themounting plate (6).
7. Place the position transmitter together
with the mounting plate on the top brack-

5-10

EB 4749 EN

Installation

6

5
4
1

2 3

1
2
3
4
5
6

Lever
Follower clamp
Coupling wheel
Bottom pair of brackets
Top pair of brackets
Mounting plate

Fig. 5-6: Attachment to rotary actuators according to VDI/VDE 3845 (light version)

EB 4749 EN

5-11

Installation

5.6.2

Heavy-duty version

Î See Fig. 5-7
Î Required mounting parts and accessories:
see section 5.8.
1. Prepare actuator and mount possibly required adapter supplied by the actuator
manufacturer (only necessary for fixing
level 2).
2. Mount the housing (7) onto the rotaryactuator. In case of VDI/VDE attachment,
place spacers (8) underneath, if necessary.

7. Fasten the position transmitter onto themounting plate (2).
8. Place the position transmitter together
with the mounting plate on the housing(7) and screw it tight. Taking the actuator's direction of rotation into account,adjust lever (1) so that it engages in thecorrect slot with its follower pin:
Î Adjust the lever correspondingly and insert a thin screwdriver into the hole tolock the shaft in place (see Fig. 5-2).
Keep the screwdriver in the hole to lockin position.

3. For SAMSON Type 3278, VETEC S160
and VETEC R Rotary Actuators, screw theadapter (6) with the supplementary
adapter (depending on the mounting kit)
onto the free end of the shaft of the actuator. For VDI/VDE version, only place on
the adapter (6) when it is required forthe actuator size.
4. Stick adhesive label onto the coupling
wheel (5) in such a manner that the yellow part of the sticker is visible in thewindow of the housing when the valve isOPEN. Adhesive labels with explanatory
symbols are enclosed and can be stuckon the housing, if required.
5. Fasten coupling wheel (5) on the slotted
actuator shaft or adapter (6) using screw(3) and disk spring (4).
6. Unscrew the standard follower pin fromthe position transmitter's M lever (1). Attach the follower pin (Ø5 mm) includedin the mounting kit to pin position 90°.

5-12

EB 4749 EN

Installation

1
2

3
4
5
6

7

8

1
2
3
4
5
6
7
8

Lever
Mounting plate
Screw
Disk spring
Coupling wheel
Adapter
EnclosureSpacerFig. 5-7: Attachment to rotary actuators according to VDI/VDE 3845 (heavy-duty version)

EB 4749 EN

5-13

Installation

5.7 Establishing electricalconnections! DANGER
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Î For mounting and electrical installation inhazardous areas, observe the explosion
protection approvals as well as the relevant electrotechnical regulations and theaccident prevention regulations that apply in the country of use. EN 60079-14
applies in Europe.
Î Do not connect the electrical supply before mounting is completed.
Î Installation, operation or maintenance ofthe position transmitter must only be performed by personnel with qualifications
according to Clause 4.5 of IEC 6007914 who has undergone special training
or instructions or who is authorized towork on explosion-protected devices inhazardous areas.
! WARNING
Incorrect electrical connection will render
the explosion protection unsafe.
Î Adhere to the terminal assignment.
Î Do not undo the enameled screws.
Î 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).

5-14

Cable entries
Î Fit equipment used in ambient temperatures below –20 °C with metal cable entries.
Equipment with type of protection Ex i
Observe Clause 12 of EN 60079-14 for installation of the intrinsically safe circuits.
Use heat-resistant cables and cable glands
that are suitable for a temperature of at least
20 K above the maximum ambient temperature.
Only use cable entries and conduit systems
which are suitable for a degree of protection≥ IP 66 and the certified temperature range.
Equipment with type of protection Ex d
! DANGER
Loss of the explosion protection due todamage to the cover's thread and/or theconnecting thread.
Î Do not open devices with flameproof
enclosures while they are energized.
! WARNING
The use of unapproved cable glands willrender the explosion protection unsafe.
Î Only use cable glands and screw plugs
which are approved for type of protection Ex d and the certified temperature
range.
Connect the devices using suitable cable entries or conduit systems that comply with
EN 60079-1 Explosive Atmospheres –Part 1: Equipment Protection by Flameproof

EB 4749 EN

Installation

Enclosures "d", Clauses 13.1 and 13.2 andfor which a separate test certificate is available.
Do not use cable entries and blanking plugsof simple construction.
Î Install the connecting cable properly sothat it is protected against mechanicaldamage.
Î If the temperature at the entry parts exceeds 70 °C, use a temperature-resistantconnecting cable:–

For Ex db T6 only use cables andcable glands which are suitable forthe temperature range from –55 to+85 °C.

–For Ex db T5 only use cables andcable glands which are suitable forthe temperature range from –55 to+100 °C.

–

For Ex db T4 only use cables andcable glands which are suitable forthe temperature range from –55 to+105 °C.

Î Include the enclosure of the positiontransmitter in the on-site equipotential
bonding system. Use the external
grounding connection on the enclosure.

EB 4749 EN

Equipment with type of protection Ex t
! WARNING
Opening the position transmitter inpotentially explosive dust atmospheres willrender the explosion protection unsafe.
Î Do not open the enclosure cover of theposition transmitter in potentially explosive dust atmospheres.
In equipment operated according to type ofprotection Ex t (protection by enclosure), circuits may be connected, interrupted or
switched while energized only during installation, maintenance or repair.
Î Certified cable glands and blanking
plugs with appropriate type of protection
with an IP rating ≥ 66 and suitable forthe certified temperature range must beused.
Î For Ex tb only use cables and cableglands which are suitable for the temperature range from –55 to +85 °C.
Connect the electrical supply
1. Strip at least 8 mm insulation off thesignal wires and guide them through thecable gland.
2. Connect the signal wires to the screw
terminals as shown in Fig. 5-8.
Î Observe the correct polarity.

5-15

Installation

Note
The signal wires transmit the 4 to 20 mA
measuring signal and the required voltage
supply (UB = 12 to 36 V DC) for the two-wiretransmitter.

+–

Fig. 5-8: Terminal assignment

5-16

EB 4749 EN

Installation

5.8 Mounting accessories
Table 5-1: General accessories
Designation

Order no.

M20x1.5 Ex d cable gland, made of brass, with O-ring, for non-armored cable (6.5
to 14 mm cable diameter)

8808-0200½ NPT Ex d cable gland, made of brass, with O-ring, for non-armored cable (6.5 to
14 mm cable diameter)

8808-2010

M20x1.5 Ex e cable gland, made of polyamide (black), with O-ring

8808-0178 1)

M20x1.5 cable gland, made of brass, with O-ring

1890-4875 1)

M20x1.5 cable gland, made of brass (blue), with O-ring

1890-4876 1)

M20x1.5 cable gland, made of polyamide (black), without O-ring

8808-1011 1)

M20x1.5 cable gland, made of polyamide (blue), without O-ring

8808-1012 1)

O-ring 18x2

8421-0067

1)

The cable gland is not suitable for Ex d instrumentation.

Table 5-2: Mounting kits
Designation

Order no.

Attachment according to VDI/VDE 3845, level 2, heavy-duty version

1400-9974

Attachment according to VDI/VDE 3845, level 1, light version (AA1 to AA4 size)

1400-7473

Attachment according to VDI/VDE 3845, level 1, heavy-duty version (AA1 to AA4
size)

1400-9384

Attachment according to VDI/VDE 3845, level 1, heavy-duty version (AA5 size)

1400-9992

Attachment for VETEC S 160/R, heavy-duty version

1400-9385

Mounting kit for Type 3277 Linear Actuators (240, 350, 700 cm²)

1400-7471

Mounting kit for Type 3271 Linear Actuators (120 cm²)

1400-7472

Mounting kit for SED diaphragm valves (both mounting kits are required)1402-1093
1400-7472

Mounting kit for control valves with NAMUR rib or attachment to valves with rod-type
yokes according to IEC 60534-6 (20 to 35 mm rod diameter)

1400-7468

Mounting kit for Type 3510 Micro-flow Valve with 60 or 120 cm² actuator area

1400-7469

EB 4749 EN

5-17

5-18

EB 4749 EN

Operation

6 Operation
Î Fig. 6-1 shows the operating controls of the Type 4749 Position Transmitter.

+–

Selector key ( key)
Green LED
Confirm key ( key)
Red LED

Meaning of the LEDs:
LED

Illuminated constantly

Blinking pattern

Fast blinking

Green
Red

Ready for operation

Menu item

Maintenance demanded

Fault

Selectable settings

Out of specification

Fig. 6-1: Operating controls of the Type 4749 Position Transmitter

6.1 Operator keys and menu structure
After the power supply is connected, the green LED is illuminated constantly in the normal
state (ready for operation).
Press  key to open the menu level. Press  key once to jump to the next item within thelevel. Press  key to activate an item. Press  key to select a function within this item. By
pressing  key, save or execute the selected function. The number of the menu item orfunction is indicated by a blinking pattern (see Table 6-1).
Keep  key pressed and press  key to leave a menu item without saving it or a function
without executing it.

EB 4749 EN

6-1

Operation

Table 6-1: Menu structure
Item no., menu item/function

LED

Blinking pattern

0 Normal state

Green

Illuminated constantly

1 Enable configuration

Green

Enable configuration

Red

Lock configuration

Red

2 Mounting

Red

Rotary actuator

Red

3 Position at 4 mA

Green

Save position

Red

4 Position at 20 mA

Green

Save positionRed

5 Issue a test current

Green

4 mA output

Red

20 mA output

Red

Execute reset

…
…

…

Green

Linear actuator

6 Reset to default settings

…

…
…

…
…

…
…

…

…
…

…

…
…

…

…

…
…

…
…

…

…

…
…

Green
Red

…

…

…

: Menu level: Selection level…

Note− If no keys are pressed within five minutes, the position transmitter returns to the normal
state.
− When the selection level is activated, the device does not exit this level until a function orsetting is made.

6-2

EB 4749 EN

Operation

6.2 Locking the configuration
The configuration of the position transmitter can be locked. Afterwards, the menu items in themenu level cannot be opened. To lock configuration, proceed as follows:
1. Press  key once to select menu item 1.
The green LED blinks according to the following pattern:…

…

2. Press  key to activate the selection level.
The red LED blinks according to the following pattern:…

…

(enable configuration)

Î Press  key again. The red LED blinks according to the following pattern:…

…

(lock configuration)

3. Press  key to lock configuration.
The position transmitter returns to menu item 1.
The green LED blinks according to the following pattern:…

…

Î Press  key to return to the normal state.
The green LED is constantly illuminated when the procedure is completed.

EB 4749 EN

6-3

6-4

EB 4749 EN

Start-up

7 Start-up
The work described in this section is only to be performed by personnel appropriately qualified to carry out such tasks.
! DANGER
Risk of fatal injury due to the ignition of an explosive atmosphere.
Î Installation, operation or maintenance of the position transmitter must only be performedby personnel with qualifications according to Clause 4.5 of IEC 60079-14 who has undergone special training or instructions or who is authorized to work on explosion-protected devices in hazardous areas.
! DANGER
Loss of the explosion protection due to damage to the cover's thread and/or theconnecting thread.
Î Do not open devices with flameproof enclosures while they are energized.
! WARNING
Opening the position transmitter in potentially explosive dust atmospheres will render the
explosion protection unsafe.
Î Do not open the enclosure cover of the position transmitter in potentially explosive dust
atmospheres.
! NOTICE
Risk of malfunction due to calibration not being performed.
Î Perform calibration before initial start-up.
Î Calibrate the position transmitter after changing the mounting position.

EB 4749 EN

7-1

Start-up

7.1 Determining the mounting situation
The position transmitter can be mounted on linear or rotary actuators. The actuator mounting
is determined in menu item 2.
1. Press  key twice to select menu item 2.
The green LED blinks according to the following pattern:…

…

2. Press  key to activate the selection level.
The red LED blinks according to the following pattern:…

…

(mounting on a linear actuator)

Î Press  key again. The red LED blinks according to the following pattern:…

…

(mounting on a rotary actuator)

Î Press  key to switch between the two options.
3. Press  key to save the required setting.
The position transmitter returns to menu item 2.
The green LED blinks according to the following pattern:…

…

4. Press  key five times to return to the normal state.
The green LED is constantly illuminated when the procedure is completed.

7.2 Determining the position at 4 mA
The first position is assigned to the 4 mA signal.
1. Press  key three times to select menu item 3.
The green LED blinks according to the following pattern:
…

7-2

…

EB 4749 EN

Start-up

2. Press  key to activate the selection level.
The red LED blinks according to the following pattern:…

…

3. Press  key again to assign the current position to the 4 mA signal.
The red LED illuminates for one second. The position transmitter returns to menu item 3.
The green LED blinks according to the following pattern:…

…

4. Press  key four times to return to the normal state.
The green LED is constantly illuminated when the procedure is completed.

7.2.1

Determining the position at 20 mA

The second position is assigned to the 20 mA signal.
1. Press  key four times to select menu item 4.
The green LED blinks according to the following pattern:…

…

2. Press  key to activate the selection level.
The red LED blinks according to the following pattern:…

…

3. Press  key again to assign the current position to the 20 mA signal.
The red LED illuminates for one second. The position transmitter returns to menu item 4.
The green LED blinks according to the following pattern:…

…

4. Press  key three times to return to the normal state.
The green LED is constantly illuminated when the procedure is completed.

EB 4749 EN

7-3

Start-up

7.2.2

Issuing a test current

Independent from the position of the position transmitter, 4 or 20 mA test signals can be issued.
1. Press  key five times to select menu item 5.
The green LED blinks according to the following pattern:…

…

2. Press  key to activate the selection level.
The red LED blinks according to the following pattern:…

…

(4 mA output)

Î Press  key again. The red LED blinks according to the following pattern:…

…

(20 mA output)

Î Press  key to switch between both signals.
3. Press  key to return to menu item 5.
The red LED blinks according to the following pattern:…

…

4. Press  key twice to return to the normal state.
The green LED is constantly illuminated when the procedure is completed.

7-4

EB 4749 EN

Operation

8 Operation
The work described in this section is only to be performed by personnel appropriately qualified to carry out such tasks.
! DANGER
Risk of fatal injury due to the ignition of an explosive atmosphere.
Î Installation, operation or maintenance of the position transmitter must only be performedby personnel with qualifications according to Clause 4.5 of IEC 60079-14 who has undergone special training or instructions or who is authorized to work on explosion-protected devices in hazardous areas.
! DANGER
Loss of the explosion protection due to damage to the cover's thread and/or the connecting thread.
Î Do not open devices with flameproof enclosures while they are energized.
! WARNING
Opening the position transmitter in potentially explosive dust atmospheres will render the
explosion protection unsafe.
Î Do not open the enclosure cover of the position transmitter in potentially explosive dust
atmospheres.
The position transmitter converts the linear or rotary motion of a control valve into a
corresponding electric signal as soon as it is connected to the power supply.
Î Put the control valve into operation by switching on the signal pressure and electricalsupply.

EB 4749 EN

8-1

Operation

8.1 Resetting the position transmitter to default settings
All settings of the position transmitter are reset to their default settings as follows:
1. Press  key six times to select menu item 6.
The green LED blinks according to the following pattern:…

…

2. Press  key to activate the selection level.
The red LED blinks according to the following pattern:…

…

3. Press  key again to perform the reset function.
The red LED illuminates briefly. The position transmitter returns to menu item 6.
The green LED blinks according to the following pattern:…

…

4. Press  key to return to the normal state.
The green LED is constantly illuminated when the procedure is completed.

8-2

EB 4749 EN

Malfunctions

9 Malfunctions
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.
The LEDs illuminate constantly or blink (seeTable 9-1) to indicate a malfunction.
! DANGER
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Î Installation, operation or maintenance ofthe position transmitter must only be
performed by personnel withqualifications according to Clause 4.5 of
IEC 60079-14 who has undergone
special training or instructions or who isauthorized to work on explosionprotected devices in hazardous areas.
! DANGER
Loss of the explosion protection due todamage to the cover's thread and/or theconnecting thread.
Î Do not open devices with flameproof
enclosures while they are energized.

! WARNING
Crush hazard arising from moving parts on
the valve and actuator.
Î Before performing any mounting or
installation work on the positiontransmitter, put the control valve out of
operation by disconnecting and locking
the supply and control signal.

9.1 Troubleshooting
See Table 9-1

9.2 Emergency action
The plant operator is responsible for emergency action to be taken in the plant.
Tip
Emergency action in the event of valve
failure is described in the associated valve
documentation.

! WARNING
Opening the position transmitter inpotentially explosive dust atmospheres willrender the explosion protection unsafe.
Î Do not open the enclosure cover of theposition transmitter in potentiallyexplosive dust atmospheres.

EB 4749 EN

9-1

Malfunctions

Table 9-1: Error messages
Reading: green LED blinks
Error status

Maintenance demanded

Cause− Internal pulse generator (crystal oscillator) has failed.

Impact− Output rate of 1 ms cannot be maintained.
− The device continues to run at a slower output rate.

Recommended action

Î Replace the device during the next service routine.
Î Contact SAMSON's After-sales Service.

Reading: red LED blinks
Error status

Out of specification

Cause− Temperature limits have been exceeded.
− Adjusted measuring range is too small (span error).

Impact− Position measurement is not possible.
− The residual current I ≤ 3.6 mA is issued at the output.

Recommended action

Î Run the device within specification(see technical data in the 'Design and principle of operation' section).
Î Check positioner attachment, lever and pin position (see the 'Installation' section).
Î Check the control valve to ensure it functions properly.
Î Check power supply/electrical signal.
Î Adjust zero and span (see the 'Start-up' section).

Reading: red LED illuminatedError status

FailureCause− Defect in the electronics or memory error− The device is not running within specification

Impact− Position measurement is not possible.
− The residual current I ≤ 3.6 mA is issued at the output.

Recommended action

Î Press  key to reset.
Î Contact SAMSON's After-sales Service if the error message reoccurs.

9-2

EB 4749 EN

Servicing

10 Servicing
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.
! DANGER
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Î Installation, operation or maintenance ofthe position transmitter must only be
performed by personnel withqualifications according to Clause 4.5 of
IEC 60079-14 who has undergone
special training or instructions or who isauthorized to work on explosionprotected devices in hazardous areas.
! DANGER
Loss of the explosion protection due todamage to the cover's thread and/or theconnecting thread.
Î Do not open devices with flameproof
enclosures while they are energized.

! WARNING
Crush hazard arising from moving parts on
the valve and actuator.
Î Before performing any mounting or
installation work on the positiontransmitter, put the control valve out of
operation by disconnecting and locking
the supply and control signal.
Note
The position transmitter was checked by
SAMSON before it left the factory.
− The product warranty becomes void ifservice or repair work not described inthese instructions is performed without
prior agreement by SAMSON's After-sales
Service.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.

! WARNING
Opening the position transmitter inpotentially explosive dust atmospheres willrender the explosion protection unsafe.
Î Do not open the enclosure cover of theposition transmitter in potentiallyexplosive dust atmospheres.

EB 4749 EN

10-1

Servicing

10.1 Periodic inspection andtesting of the positiontransmitter
We recommend inspection and testingaccording to Table 10-1 at the minimum.

Table 10-1: Recommended inspection and testing
Inspection and testing

Action to be taken in the event of a negative
resultCheck the markings, labels and nameplates on
the position transmitter for their readability andcompleteness.

Contact SAMSON when nameplates or labels aredamaged, missing or incorrect to renew them.

Check the position transmitter to ensure it ismounted properly.

Tighten the any loose mounting screws.

Check the power lines.

Tighten any loose cable glands.

Clean any inscriptions that are covered with dirt
and are illegible.

Make sure that the stranded wires are pushed into
the terminals and tighten any loose screws on thethe terminals.
Renew damaged lines.
Check whether errors or faults are indicated by
the LEDs.

10-2

Troubleshooting (see the 'Malfunctions' section).

EB 4749 EN

Decommissioning

11 Decommissioning

To decommission the position transmitter before removing it, proceed as follows:! DANGER
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Î For mounting and electrical installation inhazardous areas, observe the explosion
protection approvals as well as therelevant electrotechnical regulations andthe accident prevention regulations that
apply in the country of use. EN 6007914 applies in Europe.
Î Installation, operation or maintenance ofthe position transmitter must only be
performed by personnel withqualifications according to Clause 4.5 of
IEC 60079-14 who has undergone
special training or instructions or who isauthorized to work on explosionprotected devices in hazardous areas.

1. Put the control valve out of operation bydisconnecting and locking the supply
and control signal.
2. Open the enclosure cover of the positiontransmitter.
3. Disconnect the lines for the power supply.

! DANGER
Loss of the explosion protection due todamage to the cover's thread and/or theconnecting thread.
Î Do not open devices with flameproof
enclosures while they are energized.
! WARNING
Opening the position transmitter inpotentially explosive dust atmospheres willrender the explosion protection unsafe.
Î Do not open the enclosure cover of theposition transmitter in potentiallyexplosive dust atmospheres.

EB 4749 EN

11-1

11-2

EB 4749 EN

Removal

12 Removal
The work described in this section is only tobe performed by personnel appropriately
qualified to carry out such tasks.
! DANGER
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Î For mounting and electrical installation inhazardous areas, observe the explosion
protection approvals as well as therelevant electrotechnical regulations andthe accident prevention regulations that
apply in the country of use. EN 6007914 applies in Europe.
Î Installation, operation or maintenance ofthe position transmitter must only be
performed by personnel withqualifications according to Clause 4.5 of
IEC 60079-14 who has undergone
special training or instructions or who isauthorized to work on explosionprotected devices in hazardous areas.
1. Put the position transmitter out of operation (see the 'Decommissioning' section).
2. Disconnect the wires for the power
supply from the position transmitter.
3. To remove the position transmitter, loosen
the four fastening screws on the device.

EB 4749 EN

12-1

12-2

EB 4749 EN

Repairs

13 Repairs
A defective position transmitter must be repaired or replaced.
! NOTICE
Risk of damage to the position transmitter
due to incorrect repair work.
Î Do not perform any repair work on yourown.
Î Contact SAMSON's After-sales Service
for repair work.

13.1 Servicing explosionprotected devices
If a part of the device on which the explosion
protection is based needs to be serviced, thedevice 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 ofconformity. Inspection by a qualified
inspector is not required if the manufacturer
performs a routine test on the device before
putting it back into operation and thepassing of the routine test is documented byattaching a mark of conformity to the device.

Î Retain testing and servicing documents
as well as certificates issued by the manufacturer or inspector together with othersafety-relevant documents for the deviceor plant.
Replace explosion-protected components
only with original, routine-tested components
by the manufacturer.
Devices that have already been operated
outside hazardous areas and are intended
for future use inside hazardous areas mustcomply with the safety requirements placedon serviced devices. Before being operated
inside hazardous areas, test the devices according to the specifications for servicing explosion-protected devices.
Repair of flameproof gaps
A repair of flameproof gaps is not permitted.
If a corresponding gap is damaged, the device must be replaced.
Maintenance, calibration and work onequipment
Observe the maximum permissible values
specified in the certificates for intrinsicallysafe circuits to ensure that components relevant to explosion protection are not damaged.

Inspection by a qualified inspector is not required if the manufacturer performs a routine test on the device before putting it backinto operation and the passing of the routine
test is documented by attaching a mark ofconformity to the device.

EB 4749 EN

13-1

Repairs

13.2 Returning devices to
SAMSON
Defective position transmitters can be returned to SAMSON for repair.
Proceed as follows to return devices to
SAMSON:
1. Put the position transmitter out of operation (see the 'Decommissioning' section).
2. Remove the position transmitter (see the'Removal' section).
3. Proceed as described on the Returning
goods page of our website
u www.samsongroup.com > Service &Support > After-sales Service > Returning
goods

13-2

EB 4749 EN

Disposal

14 Disposal
We are registered with theGerman national register for
waste electric equipment (stiftungear) as a producer of electricaland electronic equipment,
WEEE reg. no.: DE 62194439

Î Observe local, national and international refuse regulations.
Î Do not dispose of components, lubricantsand hazardous substances together withyour other household waste.
Tip
On request, we can appoint a service
provider to dismantle and recycle theproduct.

EB 4749 EN

14-1

14-2

EB 4749 EN

Certificates

15 Certificates
The following certificates are included on thenext pages:− EU declaration of conformity forType 4749− EU declaration of conformity forType 4749-111− EU declaration of conformity forType 4749-180− EU declaration of conformity forType 4749-210− EU type examination certificate forType 4749-110− EU type examination certificate forType 4749-180− EU type examination certificate forType 4749-210− IECEx certificate for Type 4749-111− IECEx certificate for Type 4749-181− IECEx certificate for Type 4749-211
The certificates shown were up to date at thetime of publishing. The latest certificates canbe found on our website:
u www.samsongroup.com > Products &Applications > Product selector > Valveaccessories > Type 4749

EB 4749 EN

15-1

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

Stellungsmelder / Position Transmitter / Recopieur de position
Typ/Type/Type 4749

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_4749-0_de_en_fra_rev08.pdf

Frankfurt / Francfort, 2018-11-26
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Dr. Julian Fuchs
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklung Ventilanbaugeräte und Messtechnik
Development Valve Attachments and Measurement Technologies

SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · D 60314 Frankfurt am Main
Fon: +49 69 4009-0 · Fax: +49 69 4009-1507 · E-Mail: samson@samson.de · Internet: www.samson.de

15-2

Dipl.-Ing. Silke Bianca Schäfer
Total Quality Management/
Management par la qualité totale

Revision 08

EB 4749 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

Stellungsmelder / Position Transmitter / Recopieur de position
Typ/Type/Type 4749-110
entsprechend der EU-Baumusterprüfbescheingung KIWA 18ATEX0031 X ausgestellt von der/according to the EU Type Examination KIWA 18ATEX0031 X issued by/établi selon le certificat CE d’essais sur échantillons KIWA 18ATEX0031 X émis par:KIWA Nederland B.V.
Sir Winston Churchill-laan 273
2288 EA Rijswijk
Postbus 70 2280 AB Rijswijk
Benannte Stelle/Notified Body/Organisme notifié 0620
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 2014/34/EU

EN 60079-0: 2012 + A11: 2013,
EN 60079-11: 2012

RoHS 2011/65/EU

EN 50581:2012

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

ce_4749-110_de_en_fra_rev08.pdf

Frankfurt / Francfort, 2019-02-13
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Dr. Julian Fuchs
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklung Ventilanbaugeräte und Messtechnik
Development Valve Attachments and Measurement Technologies
SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · D 60314 Frankfurt am Main
Fon: +49 69 4009-0 · Fax: +49 69 4009-1507 · E-Mail: samson@samson.de · Internet: www.samson.de

EB 4749 EN

Dipl.-Ing. Silke Bianca Schäfer
Total Quality Management/
Management par la qualité totale

Revision 08

15-3

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

Stellungsmelder / Position Transmitter / Recopieur de position
Typ/Type/Type 4749-180
entsprechend der EU-Baumusterprüfbescheingung KIWA 19ATEX0038 X ausgestellt von der/according to the EU Type Examination KIWA 19ATEX0038 X issued by/établi selon le certificat CE d’essais sur échantillons KIWA 19ATEX0038 X émis par:KIWA Nederland B.V.
Wilmersdorf 50
P.O. Box 137
7300 AC Apeldoorn
Benannte Stelle/Notified Body/Organisme notifié 0620
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 61000-6-2:2019, EN 61000-6-3:2007+A1:2011, EN 61326-1:2013

Explosion Protection 2014/34/EU

EN 60079-0:2018, EN 60079-1:2014,
EN 60079-11:2012, EN 60079-31:2014

RoHS 2011/65/EU

EN 50581:2012

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

ce_4749-180_de_en_fra_rev08.pdf

Frankfurt / Francfort, 2019-11-29
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Dipl.-Ing. Jens Bieger
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklung Ventilanbaugeräte und Messtechnik
Development Valve Attachments and Measurement Technologies

SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · D 60314 Frankfurt am Main
Fon: +49 69 4009-0 · Fax: +49 69 4009-1507 · E-Mail: samson@samson.de · Internet: www.samson.de

15-4

Dipl.-Ing. Silke Bianca Schäfer
Total Quality Management/
Management par la qualité totale

Revision 08

EB 4749 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

Stellungsmelder / Position Transmitter / Recopieur de position
Typ/Type/Type 4749-210
entsprechend der EU-Baumusterprüfbescheingung KIWA 18ATEX0036 X ausgestellt von der/according to the EU Type Examination KIWA 18ATEX0036 X issued by/établi selon le certificat CE d’essais sur échantillons KIWA 18ATEX0036 X émis par:KIWA Nederland B.V.
Sir Winston Churchill-laan 273
2288 EA Rijswijk
Postbus 70 2280 AB Rijswijk
Benannte Stelle/Notified Body/Organisme notifié 0620
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 2014/34/EU

EN 60079-0: 2012 + A11: 2013,
EN 60079-1: 2014, EN 60079-31: 2014

RoHS 2011/65/EU

EN 50581:2012

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

ce_4749-210_de_en_fra_rev08.pdf

Frankfurt / Francfort, 2018-11-26
Im Namen des Herstellers/ On behalf of the Manufacturer/ Au nom du fabricant.

Dr. Julian Fuchs
Zentralabteilungsleiter/Head of Department/Chef du département
Entwicklung Ventilanbaugeräte und Messtechnik
Development Valve Attachments and Measurement Technologies
SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · D 60314 Frankfurt am Main
Fon: +49 69 4009-0 · Fax: +49 69 4009-1507 · E-Mail: samson@samson.de · Internet: www.samson.de

EB 4749 EN

Dipl.-Ing. Silke Bianca Schäfer
Total Quality Management/
Management par la qualité totale

Revision 08

15-5

15-6

EB 4749 EN

EB 4749 EN

15-7

15-8

EB 4749 EN

1

EU – Type Examination Certificate

2Equipment or Protective System Intended for use in Potentially Explosive Atmospheres
Directive 2014/34/EU

3

EU – Type Examination Certificate Number:

4

Product:

5

Manufacturer: SAMSON AKTIENGESELLSCHAFT

6

Address:

7

This product and any acceptable variation thereto is specified in the schedule to this certificate
and the documents therein referred to.

8

Kiwa Nederland B.V., Notified Body number 0620 in accordance with Article 17 of Directive
2014/34/EU of the European Parliament and of the Council, dated 26 February 2014, certifies
that this product has been found to comply with the Essential Health and Safety Requirements
relating to the design and construction of products intended for use in potentially explosive
atmospheres given in Annex II to the Directive.
The examination and test results are recorded in confidential ATEX Assessment Report No.
190701457.

9

Compliance with the Essential Health and Safety Requirements has been assured bycompliance with:
EN 60079-0 : 2012 + A11 : 2013
EN 60079-1 : 2014
EN 60079-11 : 2012
EN 60079-31 : 201410

If the sign "X" is placed after the certificate number, it indicates that the product is subject to theSpecific Conditions of Use specified in the schedule to this certificate.

11This EU – Type Examination Certificate relates only to the design and construction of thespecified product. Further requirements of the Directive apply to the manufacturing process andsupply of this product. These are not covered by this certificate.

12

The marking of the product shall include the following:

KIWA 19ATEX0038 X

Issue: 1

Position Transmitter Type 4749

Weismüllerstraβe 3, 60314 Frankfurt
Germany

II 2 G Ex ia IIC T6…T4 Gb
II 2 D Ex ia IIIC T85 °C Db
or
II 2 G Ex db IIC T6…T4 Gb
II 2 D Ex tb IIIC T80 °C Db

Kiwa Nederland B.V.
Unit Kiwa ExVision
Wilmersdorf 50
P.O. Box 137
7300 AC Apeldoorn
The Netherlands
Tel. +31 88 998 34 93
Fax +31 88 998 36 85
ExVision@kiwa.nl
www.kiwaexvision.com

ExVision Form 81
Version 3.1 (2019-01)

EB 4749 EN

Kiwa Nederland B.V.

Ronald KarelManaging Director

Issue date:

First issue:

10 October 2019---

This certificate shall, as far as applicable, be revised before the date of cessation ofpresumption of conformity of (one of) the included standards above as communicated in
the Official Journal of the European Union.
© Integral publication of this certificate in its entirety and without any change is allowed.

Page 1 of 3

15-9

13

SCHEDULE

14

EU – Type Examination Certificate KIWA 19ATEX0038 X

15.1

Description of Product

Issue No. 1

The Position Transmitter Type 4749 is mounted on control valves and converts the lifting or
rotating movements of the valve drive into a 4-20 mA current signal.
The position transmitter enclosure is provided with a threaded cover and can be of aluminum or
stainless steel.
Type of protection
Ex ia IIC
Ex ia IIIC
Ex db IIC
Ex tb IIIC

T-class
T6
T5
T4
T85 °C
T6
T5
T4
T80 °C

Ambient temperature range-40 °C to +55 °C-40 °C to +70 °C-40 °C to +80 °C-40 °C to +55 °C-55 °C to +65 °C-55 °C to +80 °C-55 °C to +85 °C-55 °C to +65 °C

The Position Transmitter enclosure provides a degree of protection of IP66 in accordance with
EN 60529.
Type designation
4749-abcde
a: Approvals
180 (Intrinsically safe / Explosion proof ATEX)
b: Options
0 (position transmitter 4 - 20 mA)
c: Reserved
X (not safety relevant)d: Field wiring entry
0 (M20x1,5)
1 (NPT 1/2”)
e: Enclosure material
0 (aluminium)
1 (stainless steel)
15.2

Electrical Data
Type of protection db or tb:
Power supply: 12-28 Vdc, 4-20 mA.
Type of protection ia:
Supply and output circuit (terminals +31, -32):
in type of protection intrinsic safety Ex ia IIC, only for connection to a certified intrinsically safe
circuit, with the following maximum values:
Ui = 28 V; Ii = 115 mA; Pi = 1,0 W; Ci = 19,2 nF; Li = 0 mH

15-10

Page
of 3
EB2 4749
EN13

SCHEDULE

14

EU – Type Examination Certificate KIWA 19ATEX0038 X

15.3

Instructions

Issue No. 1

The instructions provided with the product shall be followed in detail to assure safe operation.
16

ATEX Assessment Report Number
190701457.

17

Specific Conditions of Use- For the applicable ambient temperature range, refer to the Equipment section above;- For Type of protection Ex db: The flameproof joints are not intended to be repaired;- For Type of protection Ex tb and Ex ia IIIC: The equipment shall be installed and maintainedsuch that hazards caused by electrostatic discharge are excluded;- For Type of protection Ex db, Ex tb and Ex ia IIIC: Heat resisting cables and cable glands,
suitable for a temperature of at least 20 K higher than the max. ambient temperature shall be
used.

18

Essential Health and Safety Requirements
All relevant Essential Health and Safety Requirements are covered by the standards listed at
section 9.

19

Drawings and Documents
As listed in ATEX Assessment Report No. 190701457.

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15-17

15-18EB 4749 EN

IECEx Certificate
of Conformity
INTERNATIONAL ELECTROTECHNICAL COMMISSION
IEC Certification System for Explosive Atmospheres
for rules and details of the IECEx Scheme visit www.iecex.com

Certificate No.:

IECEx KIWA 19.0022X

Page 1 of 4

Status:Current

Issue No: 0

Date of Issue:

2019-10-10

Applicant:

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraβe 360314 Frankfurt
Germany

Equipment:

Position Transmitter, Type 4749

Certificate history:

Optional accessory:
Type of Protection:

Ex i, Ex d, Ex t

Marking:

Ex ia IIC T6…T4 Gb
Ex ia IIIC T85°C Db
orEx db IIC T6…T4 Gb
Ex tb IIIC T80°C Db

Approved for issue on behalf of the IECEx
Certification Body:

Harry de Wild

Position:

Certification Officer

Signature:(for printed version)
Date:

1. This certificate and schedule may only be reproduced in full.
2. This certificate is not transferable and remains the property of the issuing body.
3. The Status and authenticity of this certificate may be verified by visiting www.iecex.com or use of this QR Code.

Certificate issued by:
Kiwa Nederland B.V. (Unit Kiwa ExVision)
Wilmersdorf 50
7327 AC Apeldoorn
P.O. Box 137
Netherlands

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15-19

IECEx Certificate
of Conformity
Certificate No.:

IECEx KIWA 19.0022X

Page 2 of 4

Date of issue:

2019-10-10

Issue No: 0

Manufacturer:

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraβe 360314 Frankfurt
Germany

Additional
manufacturinglocations:This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with
the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, wasassessed and found to comply with the IECEx Quality system requirements.This certificate is granted subject to the conditions as set out in
IECEx Scheme Rules, IECEx 02 and Operational Documents as amended
STANDARDS :The equipment and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was foundto comply with the following standards
IEC 60079-0:2011
Edition:6.0

Explosive atmospheres - Part 0: General requirements

IEC 60079-1:2014-06 Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"Edition:7.0
IEC 60079-11:2011
Edition:6.0

Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"IEC 60079-31:2013
Edition:2

Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"This Certificate does not indicate compliance with safety and performance requirements
other than those expressly included in the Standards listed above.
TEST & ASSESSMENT REPORTS:
A sample(s) of the equipment listed has successfully met the examination and test requirements as recorded in:
Test Report:
NL/KIWA/ExTR19.0025/00
Quality Assessment Report:
DE/TUN/QAR06.0011/08

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IECEx Certificate
of Conformity
Certificate No.:

IECEx KIWA 19.0022X

Page 3 of 4

Date of issue:

2019-10-10

Issue No: 0

EQUIPMENT:
Equipment and systems covered by this Certificate are as follows:
The Position Transmitter Type 4749 is mounted on control valves and converts the lifting or rotating movements of the valve drive into a
4-20 mA current signal.
The position transmitter enclosure is provided with a threaded cover and can be of aluminium or stainless steel.

Type of protection

Ex ia IIC

Ex ia IIIC

Ex db IIC

Ex tb IIIC

T-class

Ambient temperature range

T6-40 °C to +55 °C

T5-40 °C to +70 °C

T4-40 °C to +80 °C

T85 °C-40 °C to +55 °C

T6-55 °C to +65 °C

T5-55 °C to +80 °C

T4-55 °C to +85 °C

T80 °C-55 °C to +65 °C

The Position Transmitter enclosure provides a degree of protection of IP66 in accordance with IEC 60529.

SPECIFIC CONDITIONS OF USE: YES as shown below:- For the applicable ambient temperature range, refer to the Equipment section above;- For Type of protection Ex db: The flameproof joints are not intended to be repaired;- For Type of protection Ex tb and Ex ia IIIC: The equipment shall be installed and maintained such that hazards caused by electrostatic
discharge are excluded;- For Type of protection Ex db, Ex tb and Ex ia IIIC: Heat resisting cables and cable glands, suitable for a temperature of at least 20 K
higher than the max. ambient temperature shall be used.

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15-21

IECEx Certificate
of Conformity
Certificate No.:

IECEx KIWA 19.0022X

Page 4 of 4

Date of issue:

2019-10-10

Issue No: 0

Equipment (continued):Type designation
4749-abcde
a: Approvals
181 (Intrinsically safe / Explosion proof IECEx)
b: Options
0 (position transmitter 4 - 20 mA)
c: Reserved
X (not safety relevant)d: Field wiring entry
0 (M20x1,5)
1 (NPT 1/2”)
e: Enclosure material
0 (aluminium)
1 (stainless steel)Electrical Data
Type of protection db or tb: Power supply:
12-28 Vdc, 4-20 mA.
Type of protection ia:
Supply and output circuit (terminals +31, -32): in type of protection intrinsic safety Ex ia IIC, only for connection to a certified intrinsicallysafe circuit, with the following maximum values:
Ui = 28 V; Ii = 115 mA; Pi = 1.0 W; Ci = 19.2 nF; Li = 0 mH

15-22

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15-26EB 4749 EN

Annex16 Annex
16.1 After-sales service
Contact our after-sales service for support
concerning service or repair work or whenmalfunctions or defects arise.
You can reach our after-sales service ataftersalesservice@samsongroup.com.
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.samsongroup.com) or in all SAMSON
product catalogs.
Required specifications
Please submit the following details:− Order number and position number inthe order− Type, serial number, device version

EB 4749 EN

16-1

16-2

EB 4749 EN

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samsongroup.com · www.samsongroup.com

2023-10-23 · English

EB 4749 EN