T 8484-3 EN
TROVIS 3730-3 Smart Positioner (HART®)

Application
Single-acting or double-acting positioner for attachment to pneumatic control valves.
Self-calibrating, automatic adaptation to valve and actuator.
Set point
Valve travel
Opening angle

4 to 20 mA
3.6 to 300 mm
24 to 100°

The positioner ensures a predetermined assignment of thevalve position to the input signal. It compares the input signal
received from a control system to the travel or rotational angleof the control valve and issues a corresponding output signal
pressure (output variable).
Special features• High air capacity• Simple attachment to all common linear and rotary actuators:– SAMSON direct attachment– NAMUR rib– Attachment to rod-type yokes according toIEC 60534-6-1– Attachment according to VDI/VDE 3847
– Rotary actuator attachment according to
VDI/VDE 3845
• Non-contact position sensing• Plain-text display with NAMUR Recommendation NE 107
states and messages on the device• Integrated diagnostic functions• Simple one-knob, menu-driven operation• LCD easy to read in any mounting position thanks to
selectable reading direction• Configurable with a computer over the SSP interface using
the TROVIS-VIEW software• Variable, automatic start-up with four different initialization modes• Sub (substitution) initialization mode allows the positioner
to be started up in case of emergency whilst the plant isrunning without having to change the valve position.
• All parameters saved in non-volatile EEPROM• Two-wire system with a small electrical load of 465 Ω• Adjustable tight-closing function• Continuous zero monitoring

Fig. 1: TROVIS 3730-3 Electropneumatic Positioner• Integrated temperature sensor and operating hours
counter• Self-diagnostics, messages as condensed state conforming
to NAMUR Recommendation NE 107• Integrated EXPERTplus diagnostics for control valves(u T 8389-3)• Optional additional functions: position transmitter,
inductive limit switches, software limit switches, forced
venting function, binary input, binary output 1)
1)

Only in combination with limit switches

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

Edition June 2024

Design and principle of operation

The extended EXPERTplus diagnostics are integrated into thepositioner. They provide information on the control valve andpositioner and generate diagnostic and status messages,
which allow faults to be pinpointed quickly.

The TROVIS 3730-3 Electropneumatic Positioner is mounted
on pneumatic control valves and used to assign the valve position (controlled variable x) to the control signal (set point w).
The positioner compares the electric control signal of a control
system to the travel or opening angle of the control valve andissues a signal pressure for the pneumatic actuator.

Version–The positioner mainly consists of a non-contact travel sensor
system (2), pneumatics and the electronics with the microcontroller (4). The valve position is transmitted either as an angleof rotation or linear travel to the pick-up lever, from there to
the travel sensor (2) and forwarded to the microcontroller (4).
The PID algorithm in the microcontroller compares the valve
position measured by the travel sensor (2) to the 4 to 20 mA
DC control signal issued by the control system after it has
been converted by the A/D converter (3).

Optional modules
The optional additional functions of the TROVIS 3730-3
Positioner allows it to be adapted to specific requirements. The
following additional functions are available:

In case of a set point deviation, the activation of the i/p module (7) is changed so that the actuator of the control valve (1)is pressurized or vented accordingly over the downstream
booster (6). As a result, the closure member of the valve (e.g.
plug) is moved to the position determined by the set point.

9

Position transmitter–

Inductive limit switches–

Software limit switches–

Forced venting–

Binary input–

Binary output (only in combination with limit switches)

11

10

M

#

12 FSK

4

#

A

µC

w

#

3

–

If the positioner is ordered with additional functions, they are
ready installed and connected upon delivery.

The positioner is operated by a rotary pushbutton (10) for
menu navigation on the plain-text display (11).

Serial Interface

E M.1
M.2

B

8

7

5

TROVIS 3730-3 · Electropneumatic positioner for control
valves, HART® communication, on-site operation, local
communication with SSP interface, EXPERTplus diagnostics

E M.3

C
6

M.4

2

E M.5
M.6

1 Control valve
2 Travel sensor
3 A/D converter
4 Microcontroller
5 Pressure reducer
6 Air booster
7 i/p converter
8 D/A converter
9 Communication interface
10 Rotary pushbutton
11 Display
12 HART® connection
A Option A
B Option B
C Option C

ExhaustSupply 9

Output 38

y

1
x

M
M.1
M.2
M.3
M.4
M.5
M.6

Available options
Forced venting (Slot B only)
Position transmitter
Binary input
Software limit switches with binary output (PLC)
Software limit switches with binary output (NAMUR)
Inductive limit switches with binary output (NAMUR)

Fig. 2: Block diagram of TROVIS 3730-3 Positioner

2

T 8484-3 EN

Technical data · TROVIS 3730-3 Positioner
TravelAdjustable travel for

Direct attachment to Type 3277:
Attachment according to IEC 60534-6 (NAMUR):
Attachment according to VDI/VDE 3847
Attachment to rotary actuators:

Travel range

Adjustable within the initialized travel/angle of rotation of the valve; travel can be restricted to 1/5 atthe maximum.

3.6 to 30 mm
3.6 to 300 mm
3.6 to 300 mm
24 to 100°Set point w
Signal range

4 to 20 mA · Two-wire device, reverse polarity protection · Minimum span 4 mA

Static destruction limit

40 V, internal current limit approx. 40 mA

Minimum current

3.75 mA for display/operation (HART® communication and configuration)
3.90 mA for pneumatic function

Load impedance≤ 9.3 V (corresponds to 465 Ω at 20 mA)

Supply air
Supply air

1.4 to 7 bar (20 to 105 psi)

Air quality acc. to ISO 8573-1

Max. particle size and density:
Oil content:
Pressure dew point:

Hysteresis≤0.3 %

Sensitivity≤0.1 %

Characteristic

Linear/Equal percentage/Reverse equal percentage/SAMSON butterfly valve

Transit time

Exhaust and supply adjustable separately up to 240 s by software

Direction of action

Reversible

Air consumption, steady state

Independent of supply air, approx. 65 ln/hClass 4
Class 3
Class 3 or at least 10 K below the lowest ambient temperature to
be expected

Air output capacity (when ∆p = 6 bar)
Actuator (supply)

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

Actuator (exhaust)

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

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

1K6 (relative humidity ≤95 %)Transport

2K4

Operation–20 to +85 °C: All versions–40 to +85 °C: With metal cable glands–55 to +85 °C: Low-temperature version 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:
0.15 mm, 10 to 60 Hz; 20 m/s², 60 to 500 Hz per axis
0.75 mm, 10 to 60 Hz; 100 m/s², 60 to 500 Hz per axis

Bumps (half sine)

According to DIN EN 60068-2-29:
150 m/s², 6 ms; 4000 bumps per axis

Noise

According to DIN EN 60068-2-64:
10 to 200 Hz: 1 (m/s²)²/Hz
200 to 500 Hz: 0.3 (m/s²)²/Hz
4 h/axis

Recommended continuous duty

≤20 m/s²

Influences
Temperature≤0.15 %/10 K

Supply air

None

Requirements
EMC

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

Degree of protection

IP 66/NEMA 4X

Electrical connections
Cable glands

One M20x1.5 cable gland for 6 to 12 mm clamping range
Second M20x1.5 threaded connection additionally available

Terminals

Screw terminals for 0.2 to 2.5 mm² wire cross-section

T 8484-3 EN

3

Explosion protection
ATEX, IECEx

Refer to Table 1

Materials
Housing and coverDie-cast aluminum EN AC-AlSi12(Fe) (EN AC-44300) acc. to DIN EN 1706, chromate and powder
coating · Special version: stainless steel 1.4408

Window

Makrolon® 2807

Cable glands

Polyamide, nickel-plated brass, stainless steel 1.4305

Other external parts

Stainless steel: 1.4571 and 1.4301

Communication
TROVIS VIEW with SSP/HART® Revision 7
WeightAluminum housing: approx. 1.0 kg · Stainless steel housing: approx. 2.2 kg

Table 1: Summary of explosion protection approvals-110

EU type examination certificate-810

EU type examination certificate-510

Certification

-111
-511
-811

IECEx

CCC Ex

-512

-851

IECEx

-112

IECEx

CCC Ex-113-111

ECAS-Ex

-511

CCoE

EAC Ex

ECAS-Ex-811

4

Statement of conformity

IECEx

-111

TROVIS 3730-3-850

EU type examination certificate

ECAS-ExType of protection/comments
NumberBVS 18 ATEX E 044 X

Date

2023-05-11

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

NumberBVS 18 ATEX E 044 X

II 2D Ex tb IIIC T85°C Db

Date2023-05-11

NumberBVS 18 ATEX E 044 X

Date

2023-05-11

II 3G Ex ec IIC T4/T6 Gc
II 2D Ex tb IIC T85°C Db

NumberBVS 18 ATEX E 045

II 3G Ex ec IIC T4/T6 Gc

Date

2023-05-11

NumberIECEx BVS 18.0035X

Date

2023-05-26

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

NumberIECEx BVS 18.0035X

Ex tb IIIC T85°C Db

Date2023-05-26

NumberIECEx BVS 18.0035X

Date

2023-05-26

Ex tb IIIC T85°C Db
Ex ec IIC T4/T6 Dc

NumberIECEx BVS 18.0035X

Ex ec IIC T6 Gc

Date

2023-05-26

Number2020322307001518

Date

2023-04-29

Valid until

2025-09-17

Number2020322307001518

Date

2023-04-29

Valid until

2025-09-17

Number

A/P/HQ/MH/104/8013

Date2023-12-31

Valid until

2028-12-31

NumberRU C-DE.HA65.B.00700/20

Date

2020-08-19

Valid until

2025-08-18

Number

24-02-100818/E23-12-097682/NB0007

Date

2024-02-07

Valid until

2025-02-06

Number

24-02-100818/E23-12-097682/NB0007

Date

2024-02-07

Valid until

2025-02-06

Number

24-02-100818/E23-12-097682/NB0007

Date

2024-02-07

Valid until

2025-02-06

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

Ex ia IIC T4/T6 Gb

1Ex ia IIC T6...T4 Gb X
Ex ia IIIC T85 °C Db X
Ex ia IIC T4/T6 Gb
Ex ia IIIC T85°C Db
Ex tb IIIC T85°C Db

Ex tb IIIC T85°C Db
Ex ec IIC T4/T6 Gc

T 8484-3 EN

-310
-115

INMETROINMETROINMETRO

-112

NEPSI

-512

KCS Korea

NEPSI

-116

-114

-855

-815

INMETROTR CMU 1055

-816
-856
-118
-518
-858

Type of protection/comments
Number

24-02-100818/E23-12-097682/NB0007

Date

2024-02-07

Valid until

2025-02-06

Number

FM21CA0064

Date

2022-10-18

Number

FM21US0097

Date

2022-10-18

NumberIEx 20.0090X/1

Date

2024-01-11

Valid until

2030-01-10

NumberIEx 20.0090X/1

Date

2024-01-11

Valid until

2030-01-10

NumberIEx 20.0090X/1

Date

2024-01-11

Valid until

2030-01-10

NumberIEx 20.0090X/1

Date

2024-01-11

Valid until

2030-01-10

Number

21-KA4BO-0920

Date

2021-12-06

Valid until

2024-12-06

Number

GYJ23.1092X

Date

2023-04-29

Valid until

2028-04-28

Number

GYJ23.1092X

Date

2023-04-29

Valid until

2028-04-28

Number

ZETC/35/2021

Date

2021-07-26

Valid until

2024-07-25

Number

ZETC/35/2021

Date

2021-07-26

Valid until

2024-07-25

Number

ZETC/35/2021

Date

2021-07-26

Valid until

2024-07-25

Number

ZETC/35/2021

Date

2021-07-26

Valid until

2024-07-25

Number

FM21UKEX0202X

Date

2022-10-18

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

Number

FM21UKEX0202X

II 2D Ex tb IIIC T85°C Db

Date2022-10-18

Number

FM21UKEX0203X

Date

2023-01-24

FM

FM

-516

TROVIS 3730-3-

ECAS-Ex

-515

-130

-851

Certification

TR CMU 1055

TR CMU 1055

TR CMU 1055

UK Ex
UK Ex
UK Ex

T 8484-3 EN

Ex ec IIC T6 Gc

IS Class I, II, III, Div. 1,
Gr. A,B,C,D,E,F,G; T4/T6
Ex ia IIC T4/T6 Gb
NI Class I, II, III Div. 2,
Gr. A,B,C,D,F,G; T4/T6
Type 4X; IP66
IS Class I, II, III, Div. 1,
Gr. A,B,C,D,E,F,G; T4/T6
IS Class I, Zone 1,
AEx ia IIC T4/6 Gb
NI Class I, II, III Div. 2,
Gr. A,B,C,D,F,G; T4/T6
Type 4X; IP66
Ex ia IIC T4/T6 Gb
Ex ia IIIC T85°C Db
Ex tb IIIC T85°C Db

Ex ec IIC T4/T6 Gc
Ex tb IIIC T85°C Db
Ex ec IIC T4/T6 Gc

Ex ia IIC T6/T4

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

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

II 3G Ex nA IIC T4/T6 Gc
II 2D Ex tb IIIC T85 °C Db
II 3G Ex nA IIC T4/T6 Gc

II 3G Ex ec IIC T4/T6 Gc

5

Mounting the positioner

Operation

The positioner can be attached directly to the Type 3277 Actuator (240 to 750 cm²) over a connection block. In actuatorswith “actuator stem extends” fail-safe action, the signal pressure is routed over an internal hole in the actuator yoke to theactuator. In actuators with “actuator stem retracts” fail-safe action, the signal pressure is routed to the actuator over readymade external piping.

The positioner is operated using one proven, user-friendly rotary pushbutton: the various menu levels, parameters and values are selected by turning the button. By pressing the button,
the required setting is activated. All parameters can bechecked and changed on site.

Using the appropriate bracket, the positioner can also be attached according to IEC 60534-6-1 (NAMUR recommendation). The positioner can be mounted on either side of the control valve.

The initialization key activates initialization which is started
according to the ready adjusted parameters (autotune). Afterinitialization is completed, the positioner immediately starts
closed-loop operation.

A pair of universal brackets is used for the attachment toType 3278 Rotary Actuators or other rotary actuators according to VDI/VDE 3845. The rotary motion of the actuator istransferred to the positioner over a coupling wheel with travelindication.
A special version of the positioner allows it to be attached according to VDI/VDE 3847. This type of attachment allows the
positioner to be replaced quickly while the process is runningby blocking the air in the actuator. The positioner can be attached directly to the Type 3277 Actuator using an adapter
bracket or adapter block. Alternatively, it can be attached to
the NAMUR rib of a control valve using an additional
NAMUR connection block.

6

All values are displayed on the plain-text display. The reading
direction of the display can be rotated by 180°.

To configure the positioner with SAMSON’s TROVIS-VIEW
software, the positioner is equipped with an additional digitalinterface to be connected to the USB interface of a computer
using an adapter.
Additionally, all parameters of the TROVIS 3730-3 Positioner
can be accessed using HART® communication.

T 8484-3 EN

Technical data · Optional additional functions
Position transmitter
VersionTwo-wire system, galvanic isolation, reverse polarity protection, reversible direction of action

Power supply

10 to 30 V DC

Output signal

4 to 20 mA

Error indication

2.4 or 21.6 mA

No-load current

1.4 mA

Static destruction limit

38 V DC · 30 V AC

Software limit switches
VersionSignal state
Static destruction limit

NAMUR

Galvanic isolation, reverse polarity protection, binary
input of a PLC acc. to EN 61131-2, Pmax = 400 mW≤1.0 mA (non-conducting)R = 10 kΩ (non-conducting)≥2.2 mA (conducting)R = 348 Ω (conducting)

32 V DC/24 V AC

32 V DC/50 mA

Binary output
VersionSignal state
Static destruction limit

PLC

Galvanic isolation, reverse polarity protection, switching
output acc. to EN 60947-5-6

NAMUR

PLC

Galvanic isolation, reverse polarity protection, switching
output acc. to EN 60947-5-6

Galvanic isolation, reverse polarity protection, binary input of a PLC acc. to EN 61131-2, Pmax = 400 mW≤1.0 mA (non-conducting)R = 10 kΩ (non-conducting)≥2.2 mA (conducting)R = 348 Ω (conducting)

32 V DC/24 V AC

32 V DC/50 mA

Inductive limit switches
VersionFor connection to switching amplifier according to EN 60947-5-6, SJ2-SN proximity switches, reverse polarity protection

Measuring plate notdetected≥3 mA

Measuring plate detected≤1 mA

Static destruction limit

20 V DC

Permissible ambient
temperature–50 to +85 °C

Binary input (switching behavior configured in TROVIS-VIEW software)
Active switching behavior (default setting)Connection

For external switch (floating contact) or relay contact

Open-circuit voltage

Max. 10 V (when contact is open)

Current draw

Max. 100 mA (pulsed when contact is closed)

Contact

Closed: R <20 Ω; open: R >400 Ω

Passive switching behavior
Connection

For externally applied DC voltage, reverse polarity protection

Voltage input

0 to 30 V

Static destructionlimit

40 V DC

Current draw

3.7 V at 24 mA

Switching voltage

Closed: <1 V; open: >6 V

Forced venting
Version

Galvanic isolation, reverse polarity protection

Voltage input

0 to 24 V DC

Input resistance≥7 kΩ

Signal state

ActiveUe <11 V

Not active

Ue >15 V

Static destruction limit

T 8484-3 EN

38 V DC/30 V AC

7

Dimensions in mm

Attachment according to IEC 60534-6
Connecting plate

Pressure gauge bracket

28

External position
sensor

15

70

70

46

34
70

34

85

89

212

Direct attachment

14

58
28

85

40

164

8

T 8484-3 EN

13

62

24

164

200

Attachment according to VDI/
VDE 3847-1 onto Type 3277
Actuator

164

62

38

Attachment according to VDI/
VDE 3847-1 to a NAMUR rib

164

T 8484-3 EN

9Attachment according to VDI/VDE 3847-2
with single-acting actuator
202

68

13

156 (167 1))

164

Attachment according to VDI/VDE 3847-2
with double-acting actuator260

156 (167 1))

68

13

164

10

T 8484-3 ENAttachment to rotary actuators according to VDI/VDE 3845

Heavy-duty version

56

80

52

86

Reversing amplifier 1)

80
30
86
Ø101

130
166

Light version

80

49

59

79

76

50

Reversing amplifier 1)

50
130
150

Reversing amplifier− Type 3710 (see drawing of heavy-duty version for
dimensions)− 1079-1118/1079-1119, no longer available(see drawing of light version for dimensions)1)

T 8484-3 EN

11

Lever16

10...17

z
y
x

Lever

x

y

z

M

25 mm

50 mm

66 mm

L

70 mm

100 mm

116 mm

XL

100 mm

200 mm

216 mm

XXL

200 mm

300 mm

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

25

M6
C

Fixing level 1 (actuator surface)
Actuator

Dimensions in mm

Ød

B

ØD
A

1)

12

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

AA2

80

30

30

5.5 for M5

96

50

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

Flange type F05 acc. to DIN EN ISO 5211

T 8484-3 ENElectrical connection

G

–12
+11
Connecting the mA control signal

I

I

–42
+41
–52
+51

Inductive limit switch 1

Inductive limit switch 2

Terminal assignment of inductive limit switchesEE–46/–92 Software limit switch 1(PLC/NAMUR)+45/+91–56/–94 Software limit switch 2(PLC/NAMUR)+55/+93
Terminal assignment of software limit swtiches
Option A–32+31
Terminal assignment of position transmitter

T 8484-3 EN

13

Option B

E

–82
+81
Terminal assignment of forced venting
Option B

Option A

E

E

–88

–88

+87

+87

Terminal assignment of binary inputE–96/–84 Fault indicator,+95/+83 PLC/NAMUR
Terminal assignment of binary output (fault alarm output)

14

T 8484-3 EN

Article code
Positioner

TROVIS 3730-3-x x x 0 x x x x x 0 x x 0 x x x x x x x x x x xWith LCD, autotune, HART communication®

Explosion protection
Without

ATEX

IECEx

CCC Ex

0 0 0
II 2G Ex ia IIC T4/T6 Gb
II 2D Ex ia IIIC T85 °C Db

1 1 0

II 2D Ex tb IIIC T85°C Db

5 1 0

1

II 3G Ex ec IIC T4/T6 Gc
II 2D Ex tb IIC T85°C Db

8 1 0

1

II 3G Ex ec IIC T4/T6 Gc

8 5 0

1

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

1 1 1

Ex tb IIIC T85°C Db

5 1 1

1

Ex tb IIIC T85°C Db
Ex ec IIC T4/T6 Dc

8 1 1

1

Ex ec IIC T6 Gc

8 5 1

1

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

1 1 2

Ex tb IIIC T85 °C Db

5 1 2

CCoE

Ex ia IIC T4/T6 Gb

1 1 1

EAC Ex

1Ex ia IIC T6...T4 Gb X
Ex ia IIIC T85 °C Db X

1 1 3

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

1 1 1

Ex tb IIIC T85°C Db

5 1 1

Ex tb IIIC T85°C Db
Ex ec IIC T4/T6 Gc

8 1 1

Ex ec IIC T6 Gc

8 5 1

ECAS-Ex1

IS Class I, II, III, Div. 1, Gr. A,B,C,D,E,F,G; T4/T6
Ex ia IIC T4/T6 Gb
1 3 0
NI Class I, II, III Div. 2, Gr. A,B,C,D,F,G; T4/T6
FM

INMETROIS Class I, II, III, Div. 1, Gr. A,B,C,D,E,F,G; T4/T6
IS Class I, Zone 1,
1 3 0
AEx ia IIC T4/6 Gb
NI Class I, II, III Div. 2, Gr. A,B,C,D,F,G; T4/T6
Ex ia IIC T4/T6 Gb
Ex ia IIIC T85°C Db

1 1 5

Ex tb IIIC T85°C Db

5 1 5

1

Ex ec IIC T4/T6 Gc
Ex tb IIIC T85°C Db

8 1 5

1

Ex ec IIC T4/T6 Gc

8 5 5

KCS Korea

Ex ia IIC T6/T4

1 1 4

NEPSI

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

1 1 2

Ex tb IIIC T85°C Db

5 1 2

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

1 1 6

II 2D Ex tb IIIC T85 °C Db

5 1 6

1

II 3G Ex nA IIC T4/T6 Gc
II 2D Ex tb IIIC T85 °C Db

8 1 6

1

II 3G Ex nA IIC T4/T6 Gc

8 5 6

1

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

1 1 8

II 2D Ex tb IIIC T85°C Db

5 1 8

II 3G Ex ec IIC T4/T6 Gc

8 5 8

TR CMU 1055

UK Ex

T 8484-3 EN

15

Positioner

TROVIS 3730-3-x x x 0 x x x x x 0 x x 0 x x x x x x x x x x x

Option A
Without

0

Position transmitter 4 to 20 mA

1

Binary input 24 V DC

2

Option B
Without

0

Binary input 24 V DC

2Forced venting

3

Option C
Without

0

2x Software limit switches + binary output (PLC)

1

2x Software limit switches + binary output (NAMUR) 1)

2

2x Inductive limit switches + binary output (NAMUR); –50 to +85 °C

4Option D
Without0

External travel sensor with M12x1 connector; with 10 m connecting cable1

Prepared for external travel sensor with M12x1 connector

2

Field barrier
Without0

Prepared for Type 3770 Field Barrier

3

Emergency shutdown
3.8 mA

0

Electrical connection
2x M20x1.5 (1x cable gland, 1x blanking plug)1

Housing material
Aluminum EN AC-44300DF (standard)0

Stainless steel 1.4408

1

Cover
With round window

1

Without window

2

Housing version
Standard

0 0With additional vent hole and VDI/VDE 3847 adapter; without travel pick-off parts

2 0With additional vent hole

2 1

Safety approval
SIL

1

Type approval for marine applications
Without

0

Bureau Veritas

1

DNV GL2

American Bureau of Shipping (ABS)3

Lloyd’s Register

5

Permissible ambient temperatureStandard: –20 to +85 °C

0–40 to +85 °C metal cable gland

1–55 to +85 °C, low-temperature version with metal cable gland2

Hardware version
HV 01.00.00

9 9

Firmware version

Specifications subject to change without notice

9 7

T 8484-3 EN

2024-09-16 · English

SV 02.00.15