Samson 3430, 430 Series, 3431, 3434-1, 3434-2 Operating Instructions Manual

Series 430

Pneumatic Indicating Controllers
Type 3430

Type 3432 Controller Station

– with Type 3435 Transmitter Module for Pressure
– with Type 3436 Transmitter Module for Temperature
– with Type 3438 Transmitter Module for Temperature (Pt 100)
– for standardized signals

Version shown with lockable door and integrated
Type 3436 Transmitter Module for Temperature

Fig. 1 · Controller stations

Mounting and
Operating Instructions

EB 7030 EN

Edition October 2010

Type 3431 Controller Station

– for standardized signals

Contents

Contents Page

1 Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Settings at the controller modules . . . . . . . . . . . . . . . . . . . . 4

2.1.1 Operating action . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.2 Air supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.3 Proportional-action coefficient Kp . . . . . . . . . . . . . . . . . . . . 6

2.1.4 Reset time Tn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.5 Rate time Tv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.6 Operating point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Setting the limit switches. . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1 Tuning the controller . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1.1 Setting the operating point in P and PD controllers . . . . . . . . . . . . 9

3.2 Smooth automatic/manual mode changeover . . . . . . . . . . . . . 10

3.3 Smooth changeover between the internal and external reference variable 10

3.4 Readjusting the controller’s zero point . . . . . . . . . . . . . . . . . 10

4 Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.1 Transmitter modules . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.2 Controller station . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.3 Controller modules. . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.3.1 Type 3433 Controller Modules . . . . . . . . . . . . . . . . . . . . . 14

5.3.2 Type 3434 Controller Modules . . . . . . . . . . . . . . . . . . . . . 17

5.4 Additional modules . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.4.1 Type 6112 i/p Converter . . . . . . . . . . . . . . . . . . . . . . . 18

5.4.2 w

selector switch . . . . . . . . . . . . . . . . . . . . . . . . 18

int/wext

5.4.3 Supply pressure regulators . . . . . . . . . . . . . . . . . . . . . . . 18

5.4.4 Inductive limit switches . . . . . . . . . . . . . . . . . . . . . . . . . 19

6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.1.1 Changing scales. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2 Installing the temperature sensor . . . . . . . . . . . . . . . . . . . . 22

7 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.1 Pneumatic connections . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.1.1 Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.1.2 Adjusting the supply air for version with supply pressure regulator. . . . 25

7.2 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2 EB 7030 EN

Contents

8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8.1 Checking the air supply . . . . . . . . . . . . . . . . . . . . . . . . 27

9 Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

9.1 Changing the controller function . . . . . . . . . . . . . . . . . . . . 28

9.2 Exchanging the transmitter module . . . . . . . . . . . . . . . . . . . 30

9.3 Checking the controller function . . . . . . . . . . . . . . . . . . . . 30

10 Use in hazardous areas . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 Servicing explosion-protected devices . . . . . . . . . . . . . . . . . 31

11 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

General safety instructions

The device may only be assembled, started up or operated by trained and

4

experienced personnel familiar with the product.
According to these mounting and operating instructions, trained personnel is
referred to as individuals who are able to judge the work they are assigned
to and recognize possible dangers due to their specialized training, their
knowledge and experience as well as their knowledge of the relevant
standards.
Explosion-protected versions may only be operated by personnel who have

4

undergone special training or instructions or who are authorized to work on
explosion-protected devices in hazardous areas.
Any hazards that could be caused by the signal pressure are to be

4

prevented by means of the appropriate measures.
Proper shipping and appropriate storage of the device are assumed.

4

EB 7030 EN 3

Application

1 Application

The Series 430 Pneumatic Indicating Con
trollers are used for applications in process
automation and industrial plants.
The controllers directly measure the con
trolled variables (pressure, temperature,
electric or pneumatic standardized signal)
and display the value. They compare the
measured variable with the set point and is
sue a corresponding pneumatic control sig
nal from 0.2 to 1 bar (3 to 15 psi).

A supply pressure of 1.4 bar±0.1 bar
(20 psi±1.5 psi) is required or an operat
ing pressure of 2 to 12 bar (30 to 180 psi)
when a supply pressure regulator is in­stalled.

-

2 Operation

-

2.1 Settings at the controller
modules

The controller module in the station can be
accessed after the lock (Fig. 2) has been re
leased and the indicating unit (5) has been
opened out.

-

The settings for operating action (turnboard

-

A) and air supply (turnboard B) must be
performed prior to commissioning.

Unscrew the mounting screw (6) on the

4

-

controller module. Pull it off its self-seal
ing hose fittings and lift out of the con­troller station.

2.1.1 Operating action

The operating action for the control loop is
set at the turnboard A (Fig. 2), where the
position of its arrow symbol according to the
arrow symbol on the controller module de­termines the operation action of the control­ler.

34 Arrow tips facing opposite

directions:
Operating direction:
Increasing/decreasing =
As the controlled variable x increases,
the output signal pressure y
decreases.

44 Arrow tips facing the same direction:

Operating direction:
Increasing/increasing
As the controlled variable x increases,
the output signal pressure y
increases.

-

-

4 EB 7030 EN

Operation

Setting or modifying the operating direction:

Unfasten the screw in turnboard A (Fig. 2)
and lift it off together with the turnboard. If
necessary, lever the board at the side.
Do not lose the rubber seal.

Turn the board by 90° so that the re

4

quired arrow is aligned with the arrow
on the base plate.
Insert board and tighten screw.

4

Reassemble the controller module in the

4

controller station.

1 Controller station (Type 3432)

1

1.1 Scale

1.3

1.3 Actual value pointer (red)

1.1

1.4 Set point adjuster

4

2 Transmitter module

1.4

3 Controller module

5

3.1 Comparator

3.2 Connecting plate

3.3 Hex screws

2

Air supply

B

Oper. action

A 3.2 3.4 8 9 3.1

3.4 Screws (inside)

2.1.2 Air supply

(only with Type 3433 Controller Module)
The position of the turnboard B (Fig. 2) with
its arrow symbol determines the air supply
to the feedback bellows. It can be accessed

-

after the comparator (3.1) has been re
moved.

4yA Normal air supply, approx. 1 m

4R Large air supply, approx. 3 m

or connecting base

-

³/h

n

per % of the system deviation

³/h

n

per % of the system deviation
(not with P or PD controller modules)

4 Lock
5 Indicating unit
6 Mounting screw
7 Restriction
8 Zero adjuster
9 Kp adjuster
10 Tn adjuster
11 Tv adjuster (only in

PD or PID controller)

12 Operating point adjuster

(only in P or PD controller)

63109

Type 3432 Contr. Module

Side view without comparator

Fig. 2 · Turnboards and adjusters

3.3
3
6

7

Type 3433-2 (PI) Controller Module

10
12

11

Type 3434-2 (PI) Controller Module

Oper. action

A

8

EB 7030 EN 5

Operation

Unfasten screws (3.3) and pull off the

4

connecting plate (3.2) together with nuts
and bolts from the controller module.
Unscrew the hexagonal socket-head

4

screws (3.4) at the side and lift the com
parator (3.1) out of the controller mod
ule.

Setting or modifying the air supply:

Unfasten screw in turnboard B and lift it

4

off together with the turnboard. If neces
sary, lever the board at the side.
Do not lose the rubber seal.
Turn the board so that the arrow is

4

aligned with the mark yA or R on the
controller module. Insert board and
tighten screw.
Reassemble the controller module in the

4

controller station.

2.1.3 Proportional-action
coefficient Kp

2.1.5 Rate time Tv

For Type 3433 Controller versions with de
rivative-action component, the rate time Tv
needs to be set at the restriction (11). The

­setting depends on the controlled system that

­is being tuned (section 3.1).

2.1.6 Operating point

­Controller modules without integral-action

component such as P or PD controllers have
an operating point. In Type 3433 Controller
Module, it can be adjusted between 0 and
100 % which corresponds to 0.2 to 1 bar by
an operating point adjuster (12). The setting
depends on the manipulated variable y (sec­tion 3.1.1).
In Type 3434 P Controller Module, the oper­ating point is fixed at 0.6 bar.

-

The setting of the KP(adjuster 9) determines
the controller gain and is related to the con­trolled system that is being tuned (section

3.1).

2.1.4 Reset time Tn

Controller versions with integral-action com
ponent require the reset time to be set at the
restriction (10). The setting depends on the
controlled system that is being tuned
(section 3.1).

6 EB 7030 EN

-

2.2 Setting the limit switches

Only applies to controller stations with the
limit switch option:
To set the limit switches, first release the lock
(4, Fig. 2) and open out the indicating unit
(5). The contacts can be accessed at the
back.

Adjust proximity switches by placing a
screwdriver in the clamps between 0 and
100 % of the reference scale and move until
a contact is made over the connected switch
ing amplifier.

Clamps with proximity switch

Operation

-

Fig. 3 · Limit switches

EB 7030 EN 7

Commissioning

3 Commissioning

Prior to commissioning the control loop,
check all devices to make sure they are con
nected correctly, do not leak and function
properly.
Release lock (4) and open out the indicating
unit (5) to enable easy access to the operat
ing controls at the controller.
Check the turnboard to make sure the cor

­rect operating action is set at the controller
(see section 2.1.1).

3.1 Tuning the controller

The controller needs to be tuned to the char­acteristics of the controlled system using the

and Tnand/or Tvadjusters at the control-

K

P

ler module to ensure that the controller can
keep any system deviations for all set points
caused by the disturbance variables to zero
or at least to minimize them.

In case of controller stations which have a
manual/ automatic switch (1.6), the plant
must be started up manually.

We recommend to determine the settings by
using a tuning test (following the Ziegler and
Nichols method) which produces sufficient
results in most cases:

1. Apply supply air (1.4 ±0.1 bar).

2. Set the proportional-action coefficient K

to a low value at the comparator.

3. Set T

restrictor to its maximum value

n

and T

to its lowest value (applies only to

v

PI and PID controllers).

1.8

1.6

-

1.5

1.7

-

1.3 Actual value pointer (red)

1.4 Set point adjuster with green pointer

1.5 Signal pressure display

1.6 Manual/automatic switch

1.7 Adjuster for signal pressure (manual)

1.8 Differential pressure indicator
4 Lock
5 Indicating unit

Fig. 4 · Front view

Setting in manual mode:

4. Set manual/automatic switch to Manual.

5. Operate manual adjuster (1.7) for the
control signal so that the controlled vari­able (actual value pointer 1.3) slowly
settles on the adjusted set point (set point
pointer 1.4).
Should the differential pressure indicator
(1.8) move to zero, set the manual/auto
matic switch (1.6) to Automatic.

P

Proceed as described in points 6 and 7.

Setting in automatic mode:

4. Set the set point to the required value at
the rotary knob (1.4) on the indicating
unit.

5. Set the T

restriction briefly to its lowest

n

value (completely open) to move the red

1.3

1.4
4
5

-

8 EB 7030 EN

Commissioning

–

actual value pointer to the green set
point pointer. Close the T

restriction

n

again.

6. Starting from a low value, increase the
proportional-action coefficient K

P

until
the actual value pointer displays an har
monic oscillation pattern (uniform oscil
lation amplitudes as shown in Fig. 5) of
the controlled variable.
If oscillations do not arise with a large
K

setting, turn the rotary knob to

P

change the set point slightly and then re
turn it to its former setting. It may be
necessary to increase the gain (K

)

P

slightly until an harmonic oscillation pat­tern arises.

7. Write down the adjusted value of the K
scale you have just adjusted as the criti­cal proportional-action coefficient K

Pkrit

Use a stopwatch to time the oscillation
time for one entire oscillation as T

krit

(PI

and PID controller only).

Controlled variable
(actual value)

Tkrit

+

Tkrit

Cntr. K

P 0.50 · K

PI 0.45 · K

PID 0.59 · K

Fig. 5 · Harmonic oscillation, settings

P

P,krit

P,krit

P,krit

T

n

0.85 · T

0.50 · T

T

v

krit

0.12 · T

krit

Multiply both values with the values in
the table (Fig. 5) and set as the favor
able settings for K

, Tn, and Tvat the

P

controller.
Should oscillations still occur despite these
settings, slightly reduce K

­Repeat these steps, if necessary, until the

­control loop shows a satisfactory perfor

and increase Tn.

P

mance. Leave enough time in between set
ting to allow the controller to stabilize.

3.1.1 Setting the operating point in

-

P and PD controllers

(Type 3433 Controller Module only)
After setting the proportion-action coefficient

as described previously, set the operating

K

P

P

point for P and PD controllers instead of the

.

reset time T

Read off the controlled variable yA of the

4

.

n

controller at the display (1.5) when the
plant is in a steady-state condition and
set this value directly at the operating
point adjuster (12, Fig. 2). (Setting 0.2 to
1 bar = 0 to 100 %).
Recorrect slightly until the system devia

4

tion is zero. In case the signal pressure
display deviates, average the value.

Note!

On changing set point or reference variable,
the operating point must be set again as de
scribed above.
If the reference variable is changed more of
ten, set the operating point to 0.6 bar =
50 % (average value).

krit

-

-

-

-

-

-

EB 7030 EN 9

Commissioning

Note!

restriction must be completely opened

The T

n

with a P/PI controller is switched over to P
action to allow the operating point adjuster
to work without delay.

Version with w-dependent operating point

This version does not need to be adjusted
since the operating point automatically fol
lows the set point w.

-

3.2 Smooth automatic/manual
mode changeover

(only for controller station with manual/au­tomatic changeover, Fig. 4)

The smooth switchover ensures that no pres­sure surges can reach the valve when the
manual/automatic switch is activated as fol­lows:

Changeover from automatic to manual

Use the manual adjuster (1.7) to adjust
signal pressure manual yH until the differen
tial pressure indicator (1.8) is zero. Switch
over to manual at the switch.

Differential pressure indicator

With Without deviation

adjuster (1.4).
The switch (1.6) can only be set to automatic
after the differential pressure indicator (1.8)
is at zero.

Set the set point again to the required value.

3.3 Smooth changeover between
the internal and external re
ference variable

When combining the fixed set point control
and follower control, the Type 3432 Con
troller Station is equipped with a w
switch, a pressure adjuster and a differential
pressure indicator (Fig. 10).
The differential pressure indicator must first
be brought to zero by activating the pres­sure adjuster in order to switch between the
reference variables.

3.4 Readjusting the controller’s
zero point

Should deviations arise between the actual
value and set point during operation, the
zero point adjustment can be readjusted by

­turning the zero screw at the back of the dis

play unit (5) until the actual value and set
point on the front display are the same
again.

Deviations between the actual value and set
point can also be corrected at the zero point
adjuster (8, Fig. 2) of the controller module.

-

-

int/wext

-

Changeover from manual to automatic

If the plant is to be controlled manually to
the required value, the automatic signal
pressure yA must be matched to the manual
signal pressure yH by adjusting the set point

10 EB 7030 EN

Construction

4 Construction

The controllers designed according to the
modular principle form an entire automation
unit consisting of a controller station, a con
troller module tuned to the local conditions,
and, where applicable, a transmitter as well
as other additional modules.

Controllers with Type 3432 Controller Sta
tion are mainly designed for installation of a
Type 3435 Transmitter Module for Pressure
or a Type 3436 Transmitter Module for
Temperature with direct process fluid con
nection.
The Type 3431 Controller Station receives
the controlled variable as a standardized
signal from 0.2 to 1 bar or 3 to 15 psi. The
controlled variable can also be supplied as
a current signal from 4 or 0 to 20 mA or
1 to 5 mA over an integrated i/p converter.

The controller station can be equipped with
the Type 3433 or Type 3434 Controller
Module.
For special control applications, the Type
3433 Controller Module can be combined
with Type 3437 Additional Modules for
pressure limitation, control mode switchover
or smooth manual/automatic transfer.
The controller station can also be upgraded,
if required, with a manual/automatic trans
fer, consisting of a selector switch, adjuster
for manual mode, and differential pressure
indicator.
The controller station must be equipped with
an additional module for w

int/wext

over when used for applications as a com
bined fixed set point controller and follower
controller. An additional pneumatic or elec
tric output for the external reference variable

(e.g. 0.2 to 1 bar or 4 (0) to 20 mA)

w

ext

change

-

-

-

-

is likewise required when used as a follower
controller. Additionally, inductive limit
switches, that are adjustable at a scale, can
be mounted on the indicating units 1 or 2.

-

Note! Refer to the corresponding Data
Sheets for details about the controller sta
tions and their controller modules.

T 7030 EN · Pneumatic Indicating
Controllers - Information Sheet with product
overview.

T 7032 EN · Pneumatic Indicating
Controllers for Pressure

T 7034 EN · Pneumatic Indicating
Controllers for Temperature with Capillary
Sensor

T 7036 EN · Pneumatic Indicating
Controllers for Temperature with Pt 100
Resistance Thermometer

T 7038 EN · Pneumatic Indicating
Controllers for Standardized Signals

T 7040 EN · Type 3433 Pneumatic
Controller Modules and Type
3437Additional Modules

T 7041 EN · Type 3434 Pneumatic
Controller Modules

T 7045 EN · Type 6112 i/p Converter

-

Module

5 Principle of operation

5.1 Transmitter modules

Type 3435 for Pressure

The process fluid pressure p is transmitted to

-

the transmitter module (2) where it causes a
deflection at the Bourdon tube measuring

-

EB 7030 EN 11

Principle of operation

system (2.1). The deflection is converted by
the pneumatic servo system (2.2) into a
pneumatic signal (controlled variable x)
which is proportional to the pressure p. The
signal is transferred to the bellows measur
ing system of the actual value display (1.3)
as well as to the controller module (3).

Type 3436 for Temperature with capillary
sensor

The temperature of the medium produces a
pressure in the gas-filled sensor (2.3) of the
transmitter module which is proportional to
the temperature. This pressure is offset by a
force on the beam (2.4) and converted into
the output pressure p

at the feedback bel-

A

lows (2.6).
The supply air flows over the restriction (2.9)
and nozzle (2.8) and hits the flapper (2.7).
As the temperature rises, the flapper moves
closer to the nozzle. This results in an in­crease in output air pressure p

supplied to

A

the bellows (2.6) until a new state of equilib­rium is reached, i.e. until the output signal is
proportional to the temperature measured.
This signal is transmitted as the actual value
signal (controlled variable x) to the bellows
measuring system of the actual value display
(1.3) and the controller module (3).

Type 3438 for Temperature with Pt 100 re
sistance thermometer

The Type 3438 Transmitter Module consists
of an electric transmitter and a downstream
i/p converter to connect a Pt 100 sensor.
The resistance value of the Pt 100 sensor is
converted into a 4 to 20 mA current signal
in the electric transmitter. Its output signal (4
to 20 mA) is converted into a pneumatic sig
nal between 0.2 and 1 bar by the i/p con
verter. The output pressure, which is propor
tional to the temperature, is supplied to the

bellows measuring system of the controlled
variable display and the controller module
as a pneumatic controlled variable signal
(controlled variable x).

-

5.2 Controller station

The actual value signal x causes a deflection
at the bellows measuring system of the ac
tual value display (1.3) which is transmitted
to the pointer over a gear mechanism.
The set point (reference variable w) can be
adjusted at the scale (1.2) on the front. The
position of the set point adjuster (1.4) is
transmitted to the set point transmitter over a
gear mechanism. This pneumatic servo sys­tem (1.41) converts the adjusted set point
into a pneumatic set point signal (w) which
is transmitted to the controller module.
The controller module compares the actual
value signal (x) with the set point signal (w)
and controls using the control signal yA de­pending on the system deviation and the ad­justed control parameters. The control signal
is connected to the signal pressure display
(1.5) and the output port y.
The controller station with manual/auto
matic switchover (Figs. 2 and 4) additionally
features a manual/automatic switch (1.6),

-

an adjuster for manual mode (1.7), and a
differential pressure indicator (1.8).
Signal pressure display (1.5) and output
port y are connected to the automatic output
signal y
matic” and to the manual output signal y
set at the adjuster (1.7) with a switch posi
tion at “Manual”.

-

A smooth switchover from manual to auto

-

matic mode is possible when the differential

-

pressure indicator (1.8) shows that y
y

H

with a switch position at “Auto

A

are identical.

-

-

-

H

-

-

and

A

12 EB 7030 EN

Principle of operation

1.5 31.2

1

y

w

1.4 1.31.41 1.5 31.2 1.4 1.31.41

R
w

PI

z

P

A

y

PPI

/

PID

S
x

2.1

2

y

Z

2.2

Type 3432 with Type 3435 Transmitter for Pressure

1.5

1

y

w

1.2 1.4 1.3

3

R
w

PI

z

P

A

y

PPI

/

S

PID

x

Zx

Type 3431 and 3432 for pneumatic standardized signals

1 Controller station

1.2 Scale

1.3 Actual value display with pointer,
gear mechanism and bellows
measuring system

1.4 Set point adjuster with pointer,
gear mechanism and set point (1.41),
set point display only for follower
controllers

1.5 Signal pressure display

1.8 Differential pressure indicator
for smooth manual/automatic
switchover

1.9 Supply pressure regulator

2 Transmitter module

2.1 Bourdon tube meas. system

2.2 Pneumatic servo system

2.3 Temperature sensor

2.4 Beam

2.6 Feedback bellows

Fig. 6 · Principle of operation of controllers

1

2.4

2.6

2.3

wxwx

w

R
w

PI

z

P

y

A

PPI

/

PID

S
x

2.7

Z

y

2.9 2.8

Type 3432 with Type 3436 Transmitter for Temperature

y

A

w

1.21.41 1.4 1.3 3
w

xwx

R
w

PI

z

P

A

y

PPI

S

PID

x

x

/

1.6

1.5

1.7

1.8

y

H

S

y

H

4

Z

1

1.9
P

B

y

x

Type 3432 with manual/automatic switch (1.6),

supply pressure regulator (1.9) and i/p converter

2.7 Flapper

2.8 Nozzle

2.9 Restriction
3 Controller module
4 Type 6112 i/p Converter

 Z = Supply pressure 1.4 bar

= Output pressure

P

A

= Compressed air network

P

B

EB 7030 EN 13

Principle of operation

5.3 Controller modules

The controller modules are designed as
plug-in units. They are inserted into the
self-sealing hose fittings of the controller sta
tion and fastened in place by mounting
screw.

5.3.1 Type 3433 Controller
Modules

The controller modules consist of the com
parator equipped with four metal bellows
arranged in a square and the base plate
with plug-in connections. The base plate
contains the components necessary for the
corresponding function such as relays and
restrictors. The components can be ex­changed or retrofitted to upgrade a device
(refer to section 9.1 for more details).

Type 3433-2 PI Controller (Fig. 7, top)
The controlled variable x (actual value) and

the reference variable w (set point) are
transmitted as pneumatic signals between

0.2 and 1 bar to metal bellows w und x

over the turnboard A. When x is greater
than w, the actual value bellows tilts the
swashplate at its pivot towards the set point
bellows. This causes the pressure to rise
downstream of the nozzle which is con
nected to the swashplate over a pin and, as
a result, the comparator increases the output
pressure y

. The output pressure is fed back

A

over turnboard B to the bellows R2 on the
swashplate.
The pressure and the position of the
swashplate continue changing until the dis
tance between the nozzle and flapper
achieve the initial value and the output pres

-

-

-

sure y

reaches the value related to the con

A

trolled variable x and the proportional-ac
tion coefficient K

Outside of the controller module, y

­nected to R, meaning that the output pres

sure y

is also fed back to bellows R1 over

A

port R and the adjustable T

set at the screw.

p

restriction. As a

n

result, the effect caused by the pressures in
bellows R1 and R2 is balanced and system
deviation is eliminated.

Should a switching pressure exist at port S
after switching the controller station to man
ual mode, the T

start-up relay.

the T

n

restriction is bypassed by

n

Turnboard A determines the operating
action of the controller which can be
changed by turning the board. Refer to sec­tion 2.1.1.

Turnboard B determines the air supply to
the feedback bellows.
In delivered state, it is set to y

, i.e., the

A

output pressure is directly fed back to bel­lows R2, whereas, it is fed to bellows R1
over the manual control unit to port R. This
arrangement provides the controller with a
normal air supply and a damping of the out
put pressure.
Setting it to R results in the output pressure

being fed back to bellows R1 and R2

y

A

over port R which provides a higher air sup
ply.
This type of turnboard setting is suitable for
applications where the distance to the final
control element is long and the connected
volume is large as well as where controlled
systems react quickly. Refer to section 2.1.2
to set or change the air supply by turning
the turnboard B.

-

is con

A

-

-

-

-

-

-

-

14 EB 7030 EN

0.2

Kp

20

0.2

Kp

20

Principle of operation

Type 3433-2 PI Controller Module

The following versions of the controller mod
ules are similar in most aspects to the
Type 3433-2 PI Controller Module, how

­ever, they are fitted with, for example, an
operating point adjuster, derivative element,
or a selector switch, depending on the
application.

Type 3433-1 P Controller Module

corresponds to Type 3433-2.
An operating point adjuster is used in place
of the integral element.

-

R Feedback
R1/R2 Feedback bellows
 Z = Supply air 1.4 bar

Output pressure

Y

A

S Switching pressure

Fig. 7 · Type 3433 Controller Modules

A Operating action
B Air supply

Turnboards

0.2

Kp

20

Type 3433-3 PID Controller Module

corresponds to Type 3433-2.
Additionally, it contains a derivative element
which produces the rate action with approx
imately ten times the gain in the input
branch of the controlled variable x. The rate
time can be adjusted at the T

restriction.

V

EB 7030 EN 15

-

Principle of operation

Type 3433-4 PD Controller Module

corresponds to Type 3433-1.
Additionally, it contains a derivative element
which produces the rate action with approx
imately ten times the gain in the input
branch of the controlled variable x. The rate
time can be adjusted at the T

restriction.

V

Type 3433-5 P/PI Controller Module

with P/PI selector switch can optionally be
used as a P controller with operating point
adjustment or as a PI controller.
The structure is the same as that of the PI
and P controller module.
Type 3433-6 PD/PID Controller Module
with PD/PID selector switch can optionally
be used as a PD or PID controller.

0.2

-

Kp

20

0.2

Kp

20

Type 3433-9 P Controller Module

with set point-dependent operating point
corresponds to Type 3433-1 P Controller
Module, except that the operating point
shifts proportional to the set point w.

16 EB 7030 EN

0.2

Kp

20

Fig. 8 · Type 3433 Controller Modules

Principle of operation

5.3.2 Type 3434 Controller
Modules

The controller modules have a round com
parator which operates according to the
force-balance principle.
The proportional-action coefficient K
be adjusted in the range between 1 and 25.

Type 3434-2 PI Controller Module (Fig. 9)
Controlled variable x and reference variable

w are transmitted as pneumatic excess pres
sures between 0.2 and 1 bar or 3 and
15 psi to the diaphragm chambers (R1 and
R2) over the turnboard A. When x is greater
than w, the force switch (23) lowers and the
plug opens. Supply air flows into the dia­phragm chamber R2 and the output pres­sure y
ted over the T

increases. This pressure is transmit-

A

restriction (10) to the volume

n

of the 1:1 booster (24). Its output pressure is
fed back to the diaphragm chamber R1.

24

10

R

w

Z

y

A

S

A

T

n

-

can

p

9 8

K

p

The effect caused by the pressures in the di
aphragm chambers R1 and R2 is balanced.
The position of the force switch continues to
change until the controller output pressure
reaches a value which is related to the con
trolled variable x and the adjusted propor
tional-action coefficient K

i.e. until the sys

p,

tem deviation is eliminated.
The proportional-action coefficient K
justed at the restriction (9) and the reset time

at the restriction (10). The zero point ad

T

n

juster (8) is used to tune the device.

-

The turnboard A determines the controller’s
operating action which can be changed by
turning the board (section 2.1.1).

Type 3434-1 P Controller Module

The design and principle of operation are
the same in most aspects to Type 3434-2 PI
Controller Module.
However, a spring for an operating point
fixed at 0.6 bar is used instead of the feed­back with T

restriction.

n

8 Zero point adjuster
9K

P

adjuster

10 T

n

21 Diaphragms

R1

23 Force switch
24 Booster

21
R2

R1 Diaphragm chamber

23

R2 Diaphragm chamber
A Turnboard for operating

action

adjuster

p

is ad

-

-

-

-

-

-

x

Fig. 9 · Type 3434-2 Controller Module

EB 7030 EN 17

Principle of operation

5.4 Additional modules

5.4.1 Type 6112 i/p Converter

External reference variable w

and/or con

ext

trolled variable x can be issued as a current
signal of 4(0) to 20 mA or 1 to 5 mA and
converted by the i/p converter into a pneu
matic standardized signal of 0.2 to 1 bar.
The i/p additional module with one or two
converters is integrated into the controller
station and can only be used in conjunction
with the Type 3433 Controller Modules.

5.4.2 w

int/wext

selector switch

When used as a combination of fixed set
point controller and follower controller, the
controller is fitted with a w

int/wext

selector
switch.
The associated set point adjuster and differ­ential pressure indicator allow a smooth
switchover when the indicator is at zero. Re­fer to section 3.3.

5.4.3 Supply pressure regulators

When a supply pressure regulator is
mounted onto the Type 3432 Controller Sta
tion, it is suitable for the connection to an
operating pressure of 2.0 to 12 bar.
The Type 3708-5003 Supply Pressure Regu
lator (Var.-ID 1023317) reduces and con
trols the operating pressure to the required
supply pressure of 1.4 bar.

-

-

-

Connecting plate with two i/p converters

for controlled variable x and external set point

Adjuster for internal set point

w

selector switch

-

int/wext

-

18 EB 7030 EN

Supply pressure regulator

Fig. 10 · Additional modules

5.4.4 Inductive limit switches

The inductive limit switches indicate when
the controlled variable x exceeds and/or
falls below an adjustable limit value.

Two metal tags are mounted to the pointer
shaft of the controlled variable x which acti
vate associated proximity switches.
When the metal tag moves into the field of
the inductive pick-up, it is highly resistive
and when the metal tag moves outside of the
field, it is low resistive.

The proximity switches are located in adjust
able brackets. The required switching point
can be adjusted by turning the brackets. Re­fer to section 2.2 for more details.

Principle of operation

-

-

EB 7030 EN 19

Installation

6 Installation

6.1 Mounting

The controller station is designed for mount
ing onto pipes, walls or in panels.
Refer to Figs. 11 and 12 for the correspond
ing dimensions.

Active sensor length

Air sensor

Ø19.5

Ø12

300

400

G¾

Type 3432 with Type 3436 Temperature Transmitter

300

425

Ø7

192

303130 30 16

26278/938

124

Pipe mounting

Mounting to vertical or horizontal 2" pipes
using a mounting part with bracket.
Required mounting kit:
Order no. 1400-6302.

­Protective roof (accessories):

-

Order no. 1400-6311

Mounting plate

Bracket

Pipe 2”

Cable gland M 20x1.5

10

Protective roof

16069

40

2845

13

Ports:
26 x Controlled variable
27 wext Ext. set point
8/9 Supply air Z
38 y Manipulated variable

Fig. 11 · Installation dimensions of Type 3432 Controller Station

241

36

10

Process fluid connection
Type 3432 with Type 3435 Pressure Transmitter

29

5

26278/938

Tapped ports ISO 228/1-G 1/8

20 EB 7030 EN

Air connections

160

228 8 228 8

28

13

Installation

Wall mounting

Mounting using three straps
Required mounting kit: Order no.1400-6301

Panel mounting

Mounting using four mounting elements
(DIN 43835).
Distance between centers to door approx.
235 mm.
Close arrangement in rows without door
acc. to DIN IEC 61554 (DIN 43700).

192

30 30 30 16

Pipe 2”

Cable glands
M20x1.5

Ø7

26278/9 38

124

Type 3432:

+1

Panel cut-out 188

x 255+1mm,
Required panel mounting kit:
Order no. 1400-6300.

Type 3431:

+1

Panel cut-out 188

x 138+1mm,
Required panel mounting kit:
Order no. 1400-6303

Protective roof (accessories):
Order no. 1400-6311

Mounting plate

Bracket

Pipe 2”

16069

10

Protective roof

2845

13

Ports:
26 x Controlled variable
27 wext Ext. set point
8/9 Supply air Z 
38 y Manipulated variable

Fig. 12 · Installation dimensions of Type 3431 Controller Station

5

26278/9 38

241

10

Air connections
Tapped ports ISO 228/1-G 1/8

160

144 8 144 8

28

13

EB 7030 EN 21

Installation

6.1.1 Changing scales

After unlocking the door (4, Fig. 4), the
scale can be removed from the back of the
display and, if necessary, replaced with a
special scale.
The scale division of the scale must match
the measuring range of the connected or in
tegrated transmitter.

Adhesive strips are attached to inside the
casing for tag labeling on the scale.

Cut the strips to size and stick them on

4

the scale.

6.2 Installing the temperature
sensor

Only applies to controller stations with
Type 3436 Transmitter Module

Bulb sensor Ø 12 mm, length 425 mm (ac
tive length 300 mm)

­The bulb sensor can be installed in any
position. However, the entire length of the
sensor must be immersed in the medium to
be controlled.

Choose a point of installation where over
heating or noticeable time delays cannot oc
cur.
Run the capillary tube in such a way that the
large temperature deviations cannot occur
(ambient temperature approx. 20 °C) and
the tube cannot be damaged.
The smallest possible bending radius is
50 mm.

A sleeve with G ½ or G ¾ female thread at
the point of measurement is required to in­stall the sensor. Screw or seal one of the
mounting parts shown in Fig. 13 into this
sleeve.

-

-

-

22 EB 7030 EN

Note!

The mounting parts are not included with the
sensor. They must be ordered separately.
Select which mounting parts are needed de
pending on the operating conditions at the
point of measurement.

-

Installation

Mounting parts for bulb sensor Ø 12 mm, length
425 mm

Clamping flange

For wall mounting, e.g. pressureless containers or
ducts

Order no. 1090-9547

Mount flange to wall using two screws and attach
temperature sensor with two other screws in the
flange.

Screw gland (PN 10)
G ½ Order no. 1080-4881

G ¾ Order no. 1080-4882

Fill screw fitting with sealant. Insert sensor with screw
gland and coupling nut.
Tighten coupling nut.

Screw gland (PN 40) with clamping nut
G ½ Order no. 1080-4884

G ¾ Order no. 1080-4885

Install as described above. Tighten clamping nut
instead of coupling nut.

Thermowell with thread (PN 63)
G ½ Order no. 1080-4888

G ¾ Order no. 1080-4889
Use a thermowell when the nominal pressure is

exceeded, when corrosive media are involved or
when the plant is to continue to run while the sensor is
being replaced.

Insert sensor right to the bottom of the thermowell.
Tighten coupling nut.

32

8 Ø50

Ø26

G

G

Ø16

385

Ø21.3

Ø12

Ø9.5

G¾SW 32

SW 32

G¾

136

12

30

G SW 32

SW 32

55

75

Thermowell for welding (PN 63)
Order no. 1080-4890

Thermowell with flange

Order no. 1080-4891 (PN 40)

1080-4892 (PN 100)

Note: All wetted parts of the screw gland and thermo
wells are made of stainless steel 1.4571.

Fig. 13 · Mounting parts for bulb sensor

375

SW 32

-

Ø21.3

335 40

EB 7030 EN 23

Connections

7 Connections

7.1 Pneumatic connections

The air connections underneath the device
are designed as bores with ISO 228/1­G 1/8 thread. The customary fittings for
pipes or plastic hoses can be used.

Note!

The supply air must be dry and free from oil
and dust. The maintenance instructions for
upstream pressure reducing stations must be
observed.
Blow through all air tubes and hoses thor­oughly prior to connecting them.

The connection designations with codes are
cast underneath the housing.
They can additionally be marked on the
back of the housing using the adhesive label
supplied with the controller station.

38 Output y – Manipulated variable,
Output signal of the controller to operate the
control valve or positioner.

8/9 Supply – Supply air ,
Supply air 1.4 ±0.1 bar or 2 to 12 bar for
the version with supply pressure regulator
(see section 5.4.3).

27 Input w
Closed with fixed set point controller and
open for the connected external set point

with follower controller.

26 Input x – Controlled variable,
Closed with pressure or temperature control

ler (controlled variable is recorded by the
transmitter module).
Open with standardized controllers.

– External reference variable,

ext

7.1.1 Typical applications

Controller for standardized signals

26MU8/9

Z

x

0.2...1 bar

Temperature controller (with Type 3436)

Sensor

Pressure controller (with Type 3435)

Process fluid connection

-

to measure pressure:
Connection to pipe,
pressure vessel, etc.

Fig. 14 · Standard applications

Supplyy0.2 ...1 bar

8/9

Z

Supplyy0.2 ...1 bar

8/9

Z

Supplyy0.2 ...1 bar

MU – Transmitter
STR – Positioner

38

STR

38

STR

38

STR

24 EB 7030 EN

7.1.2 Adjusting the supply air for
version with supply pressure
regulator

Connections

Only applies to Type 3432 Controller Sta
tions with supply pressure regulator (1.9).

Hose connections for supply air are located
directly above the corners of the supply
pressure regulators on the bridge of the
connecting plate (inside housing). The con
nections are sealed by the hose end fittings.

Pull left end fitting off and use a hose to

4

connect it to a test pressure gauge.
Controller stations with a manual/auto

4

matic selector switch have a test connec­tion (yellow) inside the indicating unit.
Use the enclosed test connector for this
version (Fig. 15).
Unscrew cap of the pressure controller.

4

Undo the lock nut on the spindle and ad­just the spindle:

Turn the spindle clockwise to increase the

4

supply pressure and counterclockwise to
reduce it.

Secure the position of the spindle with

4

the lock nut and screw the cap back on
when the supply pressure at the test pres
sure gauge indicates a pressure of

1.4 ±0.1 bar (20 ±1.5 psi).

-

-

Fig. 15 · Test connection with test connector

-

-

EB 7030 EN 25

Connections

7.2 Electrical connection

The electrical components only apply to
controller stations with i/p converter addi
tional modules for controlled variable x, ex
ternal reference variable wext and/or with
inductive limit switches.

Caution!

For electrical installation, you are re
quired to observe the relevant elec
trotechnical regulations and the acci
dent prevention regulations that ap
ply in the country of use. In Germa
ny, these are the VDE regulations
and the accident prevention regula­tions of the employers' liability insu­rance association.
The following standards apply for
assembly and installation in hazar­dous areas: EN 60079-14: 2003
(VDE 0165 Part 1/8.98) "Electrical

apparatus for explosive gas atmo­spheres" and EN 50281-1-2: 1999
(VDE 0165 Part 2/11.99) "Electrical
apparatus for use in the presence of
combustible dust".

For the interconnection of intrinsical
ly safe electrical equipment, the per
missible maximum values specified
in the EC type examination certifica
te apply (U
or C0, and Lior L0).
Note! The terminal assignment spe
cified in the Mounting and Opera
ting Instructions must be adhered to.
Reversing the assignment of the elec
trical terminals may cause the explo
sion protection to become ineffective.
Do not tamper with painted screws.

or U0; Iior I0; Pior P0; C

i

Note on the selection of cables and wires:
To install intrinsically safe circuits, observe
section 12 of the standard EN 60079-14:

-

2003 (VDE 0165 Part 1).

-

To run multi-core cables or lines with more
than one intrinsically safe circuit, section

12.2.2.7 of this standard applies.
Devices used at ambient temperatures down
to –40 °C must have metal cable entries.

-

-

The terminals on the base plate can be ac

-

cessed after unscrewing the front cover be

-

neath the display. For operation of the limit

-

switches, switching amplifiers which comply
with EN 60947-5-6 must be connected in
the output circuit.

Type 3432

Controller
Station

i/p converter

12 11 21 22 42 41 52 51

–+

+– –+ –+

w

x

ext

4(0)...20 mA

Sw. amplifier

-

-

Type 3431

Controller
Station

-

i

-

-

-

-

Fig. 16 · Connecting i/p converters and limit switches

+
–

+
–

Sw. amplifier

Limit switches

42 41 52 51

Limit switches

i/p converter

–
+

+
–

22 21 11 12

w

ext

4(0)...20 mA

-

-

x

26 EB 7030 EN

Maintenance

Type 3438

–++

T

–

I

4...20 mA

+–

43

11 12 13

+

L

~

N

24V–
EEx i

–

PE

14

W

Y

H

Y

A

PID

I

X

P

Y38W

Z
8/9

Supply Output External

Setpoint

Sensor connection: No line compensation is required

ϑ

+–34

–

+

Safe area Ex zone 1

Fig. 17 · Electrical wiring of Type 3432 Controller Station with Type 3438 Transmitter Module

EEx i

–

+

Pt 100

8 Maintenance

with four-wire connection.
The resistance of the wires must be identical and the

permissible line resistance of 50Wper wire is not to be
exceeded.

The sensor lines are to be routed separately from relay
or contactor lines.

This filter needs to be cleaned or replaced
when the display for the controlled variable

8.1 Checking the air supply

The modules of the pneumatic controllers
normally do not require any maintenance.
However, the air supply should be checked
regular intervals.
The proper functioning of the device can
only be guaranteed when the compressed
air supplied to the device is always in a
clean condition.
Check the air filter and traps of the reducing
station at regular intervals. If necessary,
when the performance worsens, clean or re
place the appropriate filters.

Transmitter module:

A hose grommet fitted on the hose for sup

does not work (order no. 0550-0193).

Type 3433 Controller Module:

In case the controller module does not con
trol properly or there is no output signal, un
screw the restriction (7, Figs. 2 and 17) on
the left side underneath the comparator and
clean or replace it (order no.1390-0183).
Pull out the filter, if need be, and replace it
(order no. 0550-0193).
The hose connections of the controller mod
ule are also fitted with filters (order no.
0550-0186).

-

Additionally, the ports underneath the hous
ing are fitted with plastic-rimmed filters
which can be unscrewed and cleaned (order
no. 0550-0189).

-

ply air which includes a filter.

ext

27

-

-

-

-

EB 7030 EN 27

Conversion

Undo bolts (3.3) and pull connecting

9 Conversion

4

plate (3.2) together with bolts and hex

9.1 Changing the controller
function

The controller function can be changed ei
ther by exchanging the entire module
(Type 3434-1 or Type 3434-2) or by up
grading or altering (Type 3433) components
such as adjusters, restrictions or differential
amplifier.

-

-

nuts off the controller module.
Detach and mount the corresponding

4

cover plates and adjusters by unfasten
ing the M3 hexagon socket head screws
inside the housing.

P into PI: Unscrew adjuster for operating
point (12) and replace it with T

restriction

n

(10).

P into P/PI: Unscrew adjuster for operating

Type 3433 Controller Module:

Unscrew the mounting screw (6) at the

4

controller module and pull it off the
self-sealing hose fittings. Remove it from
the controller station.

point (12) and replace it with a selector
switch with operating point adjuster (13)

restriction (10).

and T

n

P into PD: Unscrew cover plate (14.1). Take
out O-ring (14.3) and insert two O-rings
(14.4) in its place. Screw on differential

Part Quantity Designation Order no.

10

10.1

10.2

11

11.1

11.2

11.3

12
12

12.1

12.2

13

13.1

13.2

14

14.1

14.2

14.3

14.4

15 1 Plate with restriction for set point-dependent operating point 1590-1089

1

Tnrestriction

2

Screws M3x8

3

O-rings 1.78 x 1.02

1

Tvrestriction

1

Cover plate

2

Screws M3x8

4

O-rings 2 x 1.5

1

Operating point adjuster 1.4 bar
1
2

Screws M3x8
4

O-rings 1.78 x 1.02

1

Selector switch with operating point adjuster
2

Screws M3x30
4

O-rings 1.78 x 1.02

1

Differential amplifier
1

Cover plate
1

Screws M3x16
1

O-ring 14 x 1.5 for plate

4 (2)

O-rings 2 x 15

20 psi

1070-4584
8333-0479
8421-0010

1070-4585
0360-1597
8333-0479
8421-0023

1070-4583
1070-6413
8333-0479
8421-0010

1180-3615
8333-0482
8421-0010

1080-6924
0360-1598
8333-0476
8421-0070
8421-0023

-

28 EB 7030 EN

Conversion

amplifier (14). Unscrew cover plate (11.1)
and mount T

restriction (11).

v

P into PID: Modify as described for P into
PD. Additionally, replace adjuster (12) with

restriction (10).

T

n

P controller with set point-dependent oper
ating point: Fasten the plate with restriction

P in PI

6

3.2

3.3
10
12
(15)

14.1, 14.2 11.1, 11.2

(15) in place of the adjuster for operating
point (12).

Note!

We recommend replacing old O-rings as
well as the filter in the restriction (7) with

-

new ones.

P/PI

14.1, 14.2 11.1, 11.2

P in PD

13
10

12

10
12

14
11

Filter

Restriction (7)

14.3 14.4 10.2

Fig. 18 · Changing the controller function of Type 3433

14.4 10.2

EB 7030 EN 29

Conversion

9.2 Exchanging the transmitter
module

The Type 3435 and Type 3436 Transmitter
Module are fastened to the Type 3432 Con
troller Station over six screws.
The supply air x is connected over two sili
cone hoses.

The transmitter module can be replaced
when a measuring element is defective or
the measuring range is to be changed.
When you order a new module, you need to
provide information on the sensor version
and the required measuring range. In addi
tion, please state the specifications con­tained on the nameplate of the old transmit­ter module.

1 Unscrew the front plate located under-

neath the display. Unfasten the corre­sponding terminals for modules with
electrics.

2 Pull off the hoses for controlled variable

x and supply air Z on the housing
connecting plate.

3 Unfasten the six mounting screws on the

bottom of the controller station and re
move the transmitter module.

4 Mount the new transmitter in the reverse

order.

On attaching the hoses to ports x and Z,
it is important not to get them confused.
The supply air hose is fitted with a hose
grommet which contains a restriction
and filter.

-

-

-

Hose grommet

-

Controlled variable x Supply air Z

Fig. 19 · Connecting plate

9.3 Checking the controller
function

To check the controller, the controlled vari­able and the manipulated variable must be
bypassed at the ports x (26) and y (38) on
the bottom of the controller station.

Set the turnboard A to
34 increasing/decreasing,

restriction to “fully open” and

the T

n

restriction to “closed”.

the T

v

Change the reference variable at the set

4

point knob over the entire range. If the
controller works properly, the controlled
variable pointer (red) and the manipu
lated variable pointer (small pressure
gauge) follow the reference variable over
the whole display range.

-

30 EB 7030 EN

Use in hazardous areas

10 Use in hazardous areas

The Type 3430 Controller Station is suitable
for use in potentially explosive atmospheres
in Zones 1 and 2, even though it does not
have its own EC-type examination certifi
cate. The controller station does not require
an EC-type examination certificate accord
ing to 94/9/EC (ATEX).

Conditions for use in hazardous areas:

The controller station is not marked as an

4

explosion-protected device with the cor
responding approval mark.
All installed explosion-protected modules

4

possess their own EC-type examination
certificate.
The maximum values specified in the as-

4

sociated EC-type examination certificate
apply to the connection to intrinsically
safe circuits.
The installation, wiring, terminals, cable

4

entry and other components relevant for
explosion protection comply with
DIN EN 50014, DIN EN 50020 and
DIN EN 60079-14 (VDE 0615).
The transparent door or window of the

4

controller station has a conductive
coating to prevent electrostatic charging.
The measuring circuit of the transmitter

4

model TTH200-E1H has a protection
level corresponding to “ia” and can be
connected to sensors which are routed
into Zone 0. The transmitter itself must
be installed in areas of Zone 1 or
Zone 2.

Caution!

Observe the following for installations in po
tentially explosive atmospheres: On install
ing and performing service work on the de

-

vice, ensure that no electrostatic charging
can arise due to the high surface resistivity

= 1012ohm).

(R

-

insul.

-

-

-

10.1 Servicing explosion-protected
devices

­If a part of the apparatus on which the ex

plosion protection is based needs to be ser
viced, it must not be put back into operation
until an expert has inspected the device ac­cording to explosion protection require­ments, has issued a certificate stating this or
given the device a mark of conformity.

Inspection by an expert is not required if the
manufacturer performs a routine check on
the device prior to putting it back into oper­ation. The passing of the routine check must
be documented by attaching a mark of con­formity to the device.

Explosion-protected components may only
be replaced by original, checked compo
nents from the manufacturer.

Devices that have already been used outside
of hazardous areas and are intended for
use in hazardous areas in future must com
ply with the safety demands placed on re
paired devices. Prior to operation, they must
be tested according to the specifications stip
ulated for "Repairing explosion-protected
devices".

-

-

-

-

-

-

EB 7030 EN 31

Technical data

11 Technical data

Type 3432 and Type 3431 Controller Station

Actual value display Measuring range 0.2 to 1.0 bar (3 to 15 psi) · Accuracy class 1.6 · Scale length 212 mm
Set point adjustment Output 0.2 to 1.0 bar (3 to 15 psi) · Scale length 212 mm · Accuracy class 1.6
Adjuster for

manual mode

Limit switches

i/p converter

Output 0.2 to 1.0 bar (3 to 15 psi) · Max. 0.02 to 1.35 bar · Max. air supply: >1.5m

1 or 2 SC 3,5-NO-YE proximity switches acc. to DIN EN 60947-5-6 (NAMUR)

Type of protection II 2 G EEx ia IIC T6 (PTB 99 ATEX 2219 X)

Input 4 (0)...20 mA, output 0.2 to 1 bar or 3 to 15 psi for controlled variable x or

external set point w

ext

Upgradable with

Contr. Module Type 3434-1 3434-2 3433-1 3433-2 3433-3 3433-4 3433-5 3436-6 3433-9

Controller function P PI P PI PID PD P/PI PD/PID P
Proportional-action Kp= 1 to 20 Kp= 0.2 to 20 (0.4 to 40)
Reset time Tn[min] – 0.05...20 0.03 to 50
Rate time [min] – 0.01 to 10 · Derivative-action gain of x: approx. 10
Optionally with

Additional Module
Type

Signal Limiter

3437-1

Control Mode

Selector Switch

3437-2

Manual/auto Transfer Switch

3437-3

Output 0.2 to 1 bar (3 to 15 psi) · Max. 0.02 to 1.35 bar

Supply air

Air quality acc. to
ISO 8573-1

Standard version: Supply air 1.4 bar±0.1 bar (20 psi±1.5 psi)

Air consumption < 0.6 m

With supply pressure regulator: Operating air 2.0 to 12 bar (30 to 180 psi)

Air consumption < 0.75 m

With i/p converter: w

Max. particle size and density: Class 3 · Oil content: Class 2 · Pressure dew point: Class 3 or

at least 10 K beneath the lowest ambient temperature to be expected

: +0.13 m

ext

3

/h

n

3

/h

n

3

/h

n

Perm. ambient temp. –20 °C to +60 °C (–40 °C to +60 °C on request)
Degree of protection IP 40, IP 65 front with door
Total weight, approx. 6 kg
Type 3435 Transmitter Module for Pressure
Measuring range [bar]

(set point range)

0 to 1.6 0 to 2.5 0 to 4 0 to 6 0 to 16 0 to 25 0 to 40

Overloadable up to 1.25 times the upper measuring range value
Ultimate strength up to Double times the upper measuring range value (max. 63 bar at 0 to 40 bar)

Performance

Deviation from terminal-based linearity:£0.3 % with terminal-based conformity

Hysteresis:£0.5 % · Overloading to permissible value:£0.1 %

Ambient temperature:£0.04 %/°C

Influence

Supply air:£0.25 %/0.1 bar

Overload on permissible value£0.1 %

3

n

/h

32 EB 7030 EN

Technical data

Type 3436 Transmitter Module for Temperature

Measuring span °C 50 100 150 200

Measuring limit °C

–40 to +200 or

150 to 300
Standard ranges °C –20 to +30 0 to 100 50 to 100 0 to 200
Overload limit 350 °C
Perm. pressure at sensor Without thermowell: PN 16 With thermowell PN 63 or PN 100
Supply air Supply air 1.4 ± 0.1 bar (20 ±1.5 psi)
Output 0.2...1.0 bar (3...15 psi)
Deviation from terminal-based

linearity

0.6 % with terminal-based conformity

Hysteresis < 0.25 %
Influence Supply air: < 0.25 %/0.1 bar

Pressure at sensor < 0.6 %/10 bar < 0.25 %/10 bar < 0.15 %/10 bar
Ambient temperature < 0.6 %/°C < 0.03 %/°C

Type 3438 Transmitter Module, consisting of Temperature Transmitter TTH200-E1H with Type 6112-22
i/p Converter Module

Electric Temperature Transmitter TTH200-E1H

Input Pt 100 resistance thermometer (RTD)

Measuring ranges

Connection Four-wire circuit, resistance per wire < 50 ohm
Measuring current < 0.3 mA
Output 4 to 20 mA, linear to temperature
Current consumption < 3.5 mA
Maximum output current 23.6 mA
Supply voltage Two-wire system: Power supply lines = Signal lines

Use in safe area U
Use in hazardous area U

Max. load R

B

Explosion protection II 2(1) G EEx [ia] ib IIC T6 acc. to ATEX
EC-type examination

certificate

–30 to 60 °C, 0 to 40 °C, 0 to 100 °C, 0 to 150 °C, 0 to 200 °C, 0 to 400 °C,

other ranges on request

= 16 to 30 V

S

= 16.5 to 28 (25) VDC, see EC-type examination certificates

S

The supply voltage USdetermines the max. load: RB<

PTB 05 ATEX 2017 X

–40 to +300

DC

(U 16.5 V)

S -

0.022 mA

EB 7030 EN 33

Technical data

Electric Temperature Transmitter TTH200-E1H

Fault indication

Sensor breakage > 22 mA
Sensor short-circuit < 3.6 mA
Sensor wire breaking < 3.6 mA or > 22 mA
Supply voltage with reverse

poles

Deviation from terminal-based

0.1% or£0.2 K (whichever value is greater)

£

linearity
Influence of ambient

0.08 %/10 K for lower measuring range value and measuring span,

£

temperature
Influence of supply voltage < 0.5 %/10 V
Output signal refreshment rate 0.4 s when the input signal changes < 0.25 K/s
Electrical isolation (I/O) 3.5 kV
Long-term stability

0.05 % or 0.1 K per year (whichever value is greater)

£

(approx. 2.5 kVAC), 60 s, input/output

DC

Type 6112- … i/p Transmitter Module

Type 6112-02
without explosion protection

Type 6112-22
with explosion protection

1)

Intrinsically safe input circuit · Input impedance 200Wand ~ 0 mH

Input impedance 200Wand ~ 5.9 mH

Explosion protection II 2 G EEx ia IIC T6
EC-type examination certificate PTB 00 ATEX 2021
Input 4 to 20 mA or 0 to 20 mA
Output 0.2 to 1 bar or 3 to 15 psi
Supply air 1.4 bar ± 0.1 bar (20 psi ± 1.5 psi), air consumption < 0.1 m
Performance Characteristic: Output linear to input
Influence Hysteresis£0.3 % · Deviation from terminal-based linearity£0.1 % (fixed set point)

Supply air 0.1 %/0.1 bar
Ambient temperature < 0.03 %/K for lower measuring range value and measuring span, based on 20 °C

Perm. ambient temperature
range

1)

Refer to attached EC-type examination certificates for details (on permissible temperatures, effective internal
capacitance and inductance)

0 mA

based on 20 °C

–40 to +60 °C

3

/h

n

1)

34 EB 7030 EN

EB 7030 EN 35

36 EB 7030 EN

EB 7030 EN 37

38 EB 7030 EN

EB 7030 EN 39

40 EB 7030 EN

EB 7030 EN 41

42 EB 7030 EN

EB 7030 EN 43

44 EB 7030 EN

EB 7030 EN 45

46 EB 7030 EN

EB 7030 EN 47

48 EB 7030 EN

EB 7030 EN 49

50 EB 7030 EN

EB 7030 EN 51

SAMSON AG · MESS- UND REGELTECHNIK
Weismüllerstraße 3 · 60314 Frankfurt am Main · Germany
Phone: [phone] · Fax: [phone]
Internet: http://www.samson.de

EB 7030 EN

S/Z 2010-11