Samson Type 3766 Service manual

Pneumatic Positioner
Type 3766
Mounting and
Operating Instructions
EB 8355-1 E
Edition September 2009
Fig. 1 ⋅Type 3766

Contents
Contents Page
1 Design and principle of operation . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Attachment to control valve . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Direct attachment to Type 3277 Act ator . . . . . . . . . . . . . . . . . . . 10
2.2 Attachment according to IEC 60534-6 . . . . . . . . . . . . . . . . . . . . 15
2.2.1 Mo nting seq ence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.2.2 Presetting the travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.3 Attachment to rotary act ators . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3.1 Mo nting the cam follower lever . . . . . . . . . . . . . . . . . . . . . . . 20
2.3.2 Mo nting the intermediate piece . . . . . . . . . . . . . . . . . . . . . . . 20
2.3.3 Defa lt setting of the cam disk . . . . . . . . . . . . . . . . . . . . . . . . 22
2.3.4 Reversing amplifier for do ble-acting act ators . . . . . . . . . . . . . . . . 26
3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1 Pne matic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1.1 Press re ga ge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1.2 S pply press re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.2 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.2.1 Switching amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.1 Adj sting the positioner at the valve . . . . . . . . . . . . . . . . . . . . . 31
4.1.1 Adj sting the proportional band Xp and air delivery Q . . . . . . . . . . . . 32
4.1.2 Adj sting the act ator: "Act ator stem extends" . . . . . . . . . . . . . . . . 32
4.1.3 Adj sting the act ator: "Act ator stem retracts" . . . . . . . . . . . . . . . . 33
4.2 Changing the operating direction . . . . . . . . . . . . . . . . . . . . . . . 34
4.3 Adj sting the limit switches . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4 Adj sting the position transmitter . . . . . . . . . . . . . . . . . . . . . . . 37
5 Converting and retrofitting the positioner . . . . . . . . . . . . . . . . . . 39
6 Dimensions in mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Test c er tificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2EB 8355-1 EN

Note!
Positioners with model index 3766-x...x. 03 and higher are equipped with a hinged co er
without ent connection. The required exhaust air connection is now included in the mount-
ing accessories. If these positioners are mounted on older actuator models, make absolutely
sure that there is a ent connection. If necessary, replace the mounting accessories as well.
Safety instructions
The positioner may only be assembled, started up or operated by trained and
experienced personnel familiar with the product.
According to these mounting and operating instructions, trained personnel is
referred to as indi iduals who are able to judge the work they are assigned to
and recognize possible dangers due to their specialized training, their knowl-
edge and experience as well as their knowledge of the applicable standards.
Explosion-protected ersions of this positioner may only be operated by per-
sonnel who ha e undergone special training or instructions or who are auth-
orized to work on explosion-protected de ices in hazardous areas.
Any hazards that could be caused in the positioner by the process medium,
the operating pressure, the signal pressure or by mo ing parts are to be
pre ented by means of the appropriate measures.
If inadmissible motions or forces are produced in the pneumatic actuator as a
result of the supply air pressure le el, it must be restricted by means of a suit-
able supply pressure reducing station.
Proper shipping and appropriate storage are assumed.
Note! Positioners with a CE marking fulfill the requirements of the directi es
94/9/EC (ATEX) and 89/336/EEC (EMC). The declaration of conformity can
be iewed and downloaded on the Internet at http://www.samson.de.
EB 8355-1 EN 3

1 Design and principle of operation
The pne matic positioner is sed to ens re
a preselected assignment between the valve
stem position (controlled variable) and the
control signal (reference variable). In this
process, the o tp t signal from a control de-
vice is compared to the travel of the control
valve and a pne matic signal press re (o t-
p t variable) is s pplied to the act ator.
The positioner consists of the lever for travel
pick- p, the meas ring diaphragm, and the
pne matic control system comprising the
nozzle, diaphragm lever (flapper plate),
and the booster.
The positioner is designed either for direct
attachment to SAMSON Type 3277 Act a-
tors or for attachment according to NAMUR
(IEC 60534-6).
The positioner can additionally be eq ipped
with either ind ctive limit switches and/or a
solenoid valve or a position transmitter.
The positioner operates according to the
force-balance principle. The travel, i.e. the
valve position, is transmitted to the pick- p
lever (1) over the pin (1.1), determining the
force of the range spring (4).
This force is compared to the force gener-
ated by the press re pe at the meas ring
diaphragm (5).
If either the control signal or the valve posi-
tion changes, the diaphragm lever (3)
moves, alterating the distance to the
nozzle (2.1 or 2.2) depending on the set
operating direction.
The air is s pplied to the booster (10) and
the press re reg lator (9). The controlled
s pply air flows thro gh the Xp restric-
tion (8) and the nozzle (2.1, 2.2) against
the diaphragm lever (flapper plate).
Any change of the reference variable or the
valve stem position ca se the press re to
change pstream or downstream of the
booster.
The air controlled by the booster (signal
press re pst) flows thro gh the vol me re-
striction (11) to the pne matic act ator,
ca sing the pl g stem to move to a position
corresponding to the reference variable.
The adj stable restrictions Xp (8) and
Q (11) are sed to optimize the positioner
control loop.
The pick- p lever (1) and range spring (4)
m st be selected to match the rated valve
travel and the nominal span of the refer-
ence variable.
Positioner ith inductive limit s itches
In this version, the rotary shaft of the posi-
tioner carries two adj stable tags which ac-
t ate the b ilt-in proximity switches.
Positioner ith solenoid valve
When the positioner is eq ipped with a sole-
noid valve, the control valve can be moved
to its fail-safe position regardless of the posi-
tioners o tp t signal. If a control signal
corresponding to the binary signal "0" (off)
is applied to the inp t, the signal press-
re pst is sh t off and the act ator is vented.
The act ator springs move the control valve
to its fail-safe position.
If a control signal corresponding to the bi-
nary signal "1" (on) is applied to the inp t,
the signal press re pst is s pplied to the ac-
t ator. The control valve is in control oper-
ation.
4EB 8355-1 EN
Design and principle of operation

Fig. 2 ⋅Functional diagram and inside iew
789101112
6.1 46.2
2.1
3
2.2
5
1
1.1 1.2
P
e
Supply
9
V
P
st
Q
Xp
e
p
Travel
4 3 7 8 9 11
6.1 6.2
6.1 Span adj ster
6.2 Zero adj ster
7Trnboard
8X

restriction
9Pressre reglator
10 Booster
11 Vol me restriction
12 Solenoid valve (optional)
1Pick-p lever
1.1 Pin
1.2 Clamp
2.1 Nozzle >>
2.2 Nozzle <>
3 Diaphragm lever
4Range spring
5 Meas ring diaphragm
EB 8355-1 EN 5
Design and principle of operation

Positioner ith position transmitter
A positioner containing a position transmit-
ter cannot be eq ipped with integrated limit
switches or an integrated solenoid valve
since the position transmitter req ires most
of the space inside.
The position transmitter is sed to ens re a
preselected relationship between valve posi-
tion, i.e. valve travel, and a controller o t-
p t c rrent signal of 4 to 20 mA.
The position transmitter setting allows both
valve end positions valve CLOSED or
valve OPEN as well as all intermediate po-
sitions to be indicated. Since the valve posi-
tion is always indicated regardless of the po-
sitioners inp t signal, the position transmit-
ter is a s itable device to check the c rrent
valve position.
EB 8355-1 EN
Design and principle of operation

1.1 Versions
Pneumatic Positioner Type 3766- x x x 0 1 xxxx1x000
Explosion protection
Witho t 0 2
II 2 G EEx ia IIC T6 acc. to ATEX 1
FM/CSA intrinsically safe /non incendive 3
Ex ia / Ex n I/IIC T6 IP 65 IECEx TSA A stralia 6
II 3 G EEx nA II T6 acc. to ATEX 8
Additional eq ipment
Witho t 0
Limit switch, ind ctive, 2x SJ2 SN 2
Analog position transmitter 4 ... 20 mA 6 0 0
3/2-way solenoid valve
Witho t 0
6 V DC 2
12 V DC 3
24 V DC 4
Pne matic connections

⁄

−

NPT 1
ISO 228/1 - G

⁄

2
Electrical connections
Witho t (witho t additional eq ipment or solenoid valve) 0 0 0 0
Cable gland
M20 x 1.5 bl e (plastic) 1 0 0
M20 x 1.5 black (plastic) 2 0 0
M 20 x 1.5 (nickel-plated brass) 2 1 3
Ho sing version
Al min m die-cast 0
Stainless steel (CrNiMo) 2
Temperat re range
Standard 0
Low temperat re
T

≥ −50 °C; optional limit switches, solenoid valve 2 1 3
Special version
None 000
Device f nctioning only as analog position transmitter 3766- x 60000xxx00000
EB 8355-1 EN 7
Versions

1.2 Technical data
Positioner
Travel range, adj stable
Opening angle
Direct attachment: 7.5 to 30 mm,
Attachment according to IEC 60534-6: 7.5 to 120 mm
Depending on the type of cam disk: 30 to 90°
Reference variable
Signal range
Span
Max. overload limit
0.2 to 1bar (3 to 15 psi)
0.4 to 0.8 bar (6 to 12 psi)
2 bar (29 psi)
S pply press re 1.4 to 6 bar (20 to 90 psi)
Signal press re p

(o tp t) Can be limited between approx. 2.5 to 6.0 bar (38 to 90 psi)
Characteristic Linear
Deviation from terminal-based conformity
≤1%
Hysteresis ≤0.3 %
Sensitivity ≤0.1 %
Operating direction Reversible
Proportional band X

<1 to 2.5 % (proportional-action coefficient Kp: >100 to 40)
Air cons mption At 1.4 bar s pply press re
≤230 l

/h
At 6 bar s pply press re
≤230 l

/h with min. adj sted press. reg lator
Air delivery Filling the act ator: 3.0 m

/h
Venting the act ator: 4.5 m

/h
8.5 m

/h
14.0 m

/h
Permissible ambient
temperat re
20 °C to +80 °C with plastic cable gland; 40 °C to +80 °C with metal cable gland
(special version down to 45 °C available)
Positioner with position transmitter only 20 to 70 °C,
See attached inspection certificates for explosion-protected versions
Infl ences Temperat re: ≤0.3 %/10 K S pply press re:
≤1 % between 1.4 and 6 bar
Vibration: none from 10 to 150 Hz and 4 g
Explosion protection Type of protection EEx ia IIC T6 (see attached inspection certificate)
Degree of protection IP 54 (IP 65 by sing a filter check valve, see Accessories table)
Electromagnetic
compatibility
Req irements according to EN 61000-6-2, EN 61000-6-3,
and NAMUR Recommendation 21 are f lfilled
Weight Approx. 1 kg
Inductive limit s itches
2 proximity switches Type SJ 2-SN
Control circ it Ratings according to downstream transistor relay
Hysteresis at rated travel ≤1 %
8EB 8355-1 EN
Technical data

Solenoid valve
Inp t Binary direct c rrent signal
Nominal signal 6 V DC 12 V DC 24 V DC
Signal 0 (no pick- p) , DC signal at 25 °C ≤1.2 V ≤2.4 V ≤4.7 V
Signal 1 (safe pick- p), DC signal at +80 °C ≥5.4 V ≥9.6 V ≥18 V
Max. permissible signal 28 V 25 V 32 V
Coil rsistance R

at 20 °C 2909 Ω5832 Ω11714 Ω
Air cons mption in steady state, K

= 0.14 m

/h In addition to that of the positioner: "Off"
≤60 l

/h; "On" ≤10 l

/h
Closing time for
For rated travel and
signal press re
range
Type 3277 Act ator cm

120 240 350 700
0.2 to 1 bar
≤0.5 s
≤1 s ≤1.5 s ≤4 s
0.4 to 2 bar ≤2 s ≤2.5 s ≤8 s
0.6 to 3 bar ≤1 s ≤1.5 s ≤5 s
Position transmitter  Instrinsically safe o tp t c rrent circ it
O tp t signal Two-wire system 4 to 20 mA, reversible operating direction
Permissible load U

 12 V
R

= 
20 mA
Power s pply Voltage range 12 to 45 V DC Only with intrinsically safe c rrent circ it
Characteristic O tp t linear to inp t, deviation from characteristic
≤1 %
Hysteresis ≤0.6 %
Response span ≤0.1 %
Power s pply infl ence ≤1 % when voltage changes within the specified limits
HF infl ence ≤0.1 %, f = 150 MHz, 1 W transmitter power at a distance of 0.5 m
Load infl ence ≤0.1 %
Permissible ambient temperat re 20 to +70 °C 20 to ... See declaration of conformity
Ambient temperat re infl ence ≤0.4 % on lower meas ring range limit,
≤0.2 % on meas ring span
Ripple of o tp t signal ≤0.3 %
Data refer to standard spring (15 mm travel with Type 3277 Act ator) and gain of 100
EB 8355-1 EN 9
Technical data

2 Attachment to control valve
The positioner can be attached either di-
rectly to a SAMSON Type 3277 Act ator
or to valves with cast yokes or rod-type
yokes according to IEC 60534-6 (NAMUR).
When combined with an intermediate
piece, the device can also be attached to
rotary act ators as a rotary positioner.
As the positioner is also available as a
basic nit witho t accessory eq ipment,
refer to the tables on the following pages
for both the req ired mo nting parts and
their associated order n mbers.
Do not remove the protective cover on the
positioners rear side before act ally start-
ing to attach the positioner.
Mounting position and operating direction
The operating direction of the positioner
also determines its mo nting position on the
act ator as ill strated in Figs. 3, 4, and 6.
The t rnboard (7, Fig. 2) at the positioner
m st be mo nted correspondingly.
For an increasing inp t signal (reference
variable), the signal press re pst can either
be increasing (direct action >>) or decreas-
ing (reverse action <>).
This also applies when the reference vari-
able decreases: direct action >> ca ses the
signal press re to decrease, reverse ac-
tion <> ca ses the signal press re to in-
crease.
On the t rnboard (7), the operating direc-
tion is indicated by symbols (direct >>,
reverse <>).
Depending on the position of the t rnboard,
the adj sted operating direction and the as-
sociated symbol become visible.
If the req ired operating direction does not
correspond to the visible symbol, or if yo
want to change the operating direction,
remove the fastening screw at the t rn-
board, t rn the board by 180°, and re-
fasten the t rnboard with the screw. Make
s re the three r bber gaskets inserted in the
ho sing remain in position.
Important!
When any subsequent changes are made,
e.g. re ersing the operating direction of the
positioner control loop or changing the actu-
ator from Actuator stem extends to Actu-
ator stem retracts or ice ersa, the posi-
tioners mounting position must be changed
accordingly.
2.1 Direct attachment to
Type 3277 Actuator
Required accessories are listed in Tables 1
to 4 on page 14.
The attachment of the positioner either on
the left or right side of the act ator (always
looking at the signal press re connection or
switchover plate) is determined by the re-
q ired operating direction of the positioner,
i.e. >> or <>.
10 EB 8355-1 EN
Attachment to control valve

Fig. 3 ⋅Mounting pos. and signal press. conn. for Type 3277 (top) and Type 3277-5 with 120 cm (bottom) Actuators
Actuator stem extends
Actuator stem retracts
Signal press re
inp t for
attachment left
Gasket with
filter
Signal press re inp t for
attachment right
Actuator stem extends
>> Operating direction <>
Attachm. left Attachm. right
Actuator stem retracts
<> Operating direction >>
Attachm. left Attachm. right
Internal signal
press re connection Op. direction <>
Attachment right
Op. direction >>
Attachment left
Act ator stem extends
Op. direction <>
Attachment left
Marking
Marking
Act ator stem retracts
Op. direction >>
Attachment right
Symbol
Signal press re
connection over t be
Side view of connection block
With gasket (ne ) With switch plate (old)
Connection block
Tip of the
gasket (16)
Cover plate
Switch plate (13)
Switchover plate
Gasket (16)
EB 8355-1 EN 11
Direct attachment to Type 3277 Actuator

1. Screw the clamp (1.2) to the act ator
stem. Make s re that the fastening
screw is located in the groove of the ac-
t ator stem.
2. Screw the associated lever D1 or D2
(for 700 cm2 act ator) to the pick- p
lever of the positioner.
3. Fasten the distance plate (15) with the
seal pointing towards the act ator yoke.
4. Attach the positioner s ch that the lever
D1 or D2 slides centrically over the
pin (1.1) of the clamp (1.2). Screw the
positioner to the distance plate (15).
5. Mo nt the cover (16).
6. Check whether the correct range spring
has been installed as listed in Table 4.
Range spring 1 is installed by defa lt. If
necessary, replace it with spring 2 in-
cl ded in the accessories and fix it at
the o ter slot.
240, 350, and 700 cm2 actuators
7. Make s re that the tip of the gasket (16)
projecting from the side of the connec-
tion block (Fig. 3, middle) is positioned
to match the act ator symbol that corre-
sponds to the act ators fail-safe action
"Act ator stem extends" or "Act ator
stem retracts".
If this is not the case, remove the three
fixing screws and the cover. Reposition
the gasket (16) t rned by 180°.
The old connection block version re-
q ires the switch plate (13) to be t rned
s ch that the corresponding act ator
symbol points to the marking.
8. Place the connection block with its seal-
ing rings on the positioner and the act -
ator yoke and screw tight sing the
fastening screw. Act ators with Act a-
tor stem retracts req ire the ready-
made signal press re line to be in-
stalled.
120 cm2 actuators
The signal press re is transmitted to the dia-
phragm chamber over the switchover plate
(Figs. 3 and 4, bottom).
7. Remove the screw in the rear cover of
the positioner (Fig. 5) and seal the lat-
eral signal press re o tp t o tp t
with the pl g contained in the acces-
sories kit.
8. Mo nt the positioner s ch that the bore
in the distance plate (15) mates with the
seal in the bore of the act ator yoke.
9. Align the switchover plate with the
corresponding symbol and fasten it to
the act ator yoke.
Important!
When a solenoid al e or a similar de ice
is attached to the 120 cm2 actuator in addi-
tion to the positioner, do not remo e the
rear M3 screw plug. In this case, the signal
pressure must be transmitted from the signal
pressure output to the actuator o er an addi-
tional connecting plate (Table 2). The swit-
cho er plate (Figs. 3 and 4) is not used.
Filling the actuator ith air
If the spring chamber of the act ator m st
be filled with the positioners exha st air,
se a t be (Table 3) to connect the spring
chamber (with version Act ator stem ex-
tends) to the connection block. To do so,
12 EB 8355-1 EN
Direct attachment to Type 3277 Actuator

remove the pl g from the connection block.
For version Act ator stem retracts and
Type 3277-5 Act ators with an effective dia-
phragm area of 120 cm2, an internal bore
hole ens res that the spring chamber is
filled with air.
Important!
When the al e is installed, the lateral co er
of the actuator must be mounted such that
the ent plug points downward.
Fig. 4 ⋅Mounting the clamp
1.2
D2
D1
15
Vent pl g
Attachment left Attachment right
Looking onto the signal press re connection
Signal press re bore
Switchover plate
Cover
Type 3277-5
with 120 cm

Vent pl g m st point
downward when valve
is installed
Distance plate (15)
Clamp (1.2)
Type 3277
with 240, 350,
and 700 cm

EB 8355-1 EN 13
Direct attachment to Type 3277 Actuator

Table 1 Act ator size Mo nting kit
Req ired lever with associated clamp and distance plate cm

Order no.
D1 with vent pl g for o tp t (38)
Connecting thread
G 1/4
1/4 NPT 120 1400-6790 1400-6791
D1 (33 mm long with 17-mm-high clamp) 240 and 350 1400-6370
D2 (44 mm long with 13-mm-high clamp) 700 1400-6371
Table 2 Order no.
Switchover plate for 120 cm

act ator Act ator Type 3277-5xxxxxx.
00 (old) 1400-6819
Switchover plate,
ne Act ators with model index . 01 or higher (new) 1400-6822
Connecting plate for additional attachment
of, e.g. a solenoid valve
3277-5xxxxxxxx.
00
(old)
G 1/8
1/8 NPT
1400-6820
1400-6821
Connecting plate,
ne Act ators with model index .01 or higher (new) 1400-6823
Note! Only the new switcho er and connecting plates can be used for new actuators (model index 01). Old and new
plates cannot be interchanged.
Connection block req ired for 240, 350, and 700 cm

act ators
(incl ding seals and fastening screw)
G 1/4 1400-8811
1/4 NPT 1400-8812
Table 3 Act ator size in cm

Material Order no.
Req ired t be connection
incl ding screw joint
For act ators
"Act ator stem retracts"
or
when filling the pper diaphragm chamber
with air
240 Steel 1400-6444
240 SS 1400-6445
350 Steel 1400-6446
350 SS 1400-6447
700 Steel 1400-6448
700 SS 1400-6449
Table 4 Req ired act ator spring For ... cm

act ator Travel in mm Order no.
2 (4.5 coils) 120, 240 7.5 1400-6443
1 (9.5 coils, defa lt) 120, 240, and 350 10 to 15 1400-6442
2 700 15 1400-6443
1 700 30 1400-6442
Accessories Press re ga ge b ild-on block (only for 120 cm

) G 1/4: 1400-7458 1/4 NPT: 1400-7459
Press re ga ge kit for s pply and signal press re SS/Br: 1400-6950 SS/SS: 1400-6951
Filter check valve, replaces the vent pl g and increases the degree of protection to IP 65 1790-7408
Assortment of spare parts incl ding seals and diaphragms 1400-9895
14 EB 8355-1 EN
Direct attachment to Type 3277 Actuator

2.2 Attachment according to
IEC 60534-6
Required mounting parts are listed in
Table 5. The rated tra el of the al e deter-
mines which le er and range spring
(Table 6) are required.
An adapter ho sing (Fig. 7) is req ired for
attachment. For positioner attachment, yo
req ire an adapter ho sing (Fig. 7). The
valve travel is transmitted over the lever (18)
and shaft (25) to the bracket (28) of the
adapter ho sing and then passed on to the
pin (27a) located on the positioner lever.
Fix the spring incl ded in the accessories at
the back of the positioner ho sing as ill s-
trated in Fig. 5 to ens re that the pin (27a)
is properly located in the bracket (28).
The positioner can be attached either to the
left or the right of the control valve (Figs. 6
and 7). T rn the positioner at the adapter
ho sing by 180° to set or change the opera-
ting direction of the positioner/control valve
nit.
Fig. 5 ⋅Fixing the spring on the rear housing
Fig. 6 ⋅Attachment to the left or right of the al e when NAMUR attachment is used
Act ator with fail-safe action "Act ator stem retracts" (FE)
Direct operat. direction >> Reverse operat. direction <> Direct operat. direction >> Reverse operat. direction <>
Attachment left Attachment right
Mo nting position: looking onto the travel pick- p plate (20), act ator pointing pward (also see Fig. 7)
Act ator with fail-safe action "Act ator stem extends" (FA)
Direct operat. direction >> Reverse operat. direction <> Direct operat. direction >> Reverse operat. direction <>
Spring Screw pl g
20
Inpt Otpt and Spply Inpt
20
O tp t and S pply Inp t O tp t and S pply
EB 8355-1 EN 15
Attachment according to IEC 0534-

2.2.1 Mounting sequence
Choose the req ired mo nting parts and
range spring from Table 4 or 5 and install
them as ill strated in Fig. 7.
Control valve ith cast yoke
1. Screw the plate (20) to the co pling con-
necting the act ator and pl g stems
sing co nters nk screws.
For 2100 and 2800 cm2 act ators, se
an additional mo nting bracket (32).
2. Remove the r bber pl g from inside the
adapter ho sing. Fasten the ho sing to
the left or right of the NAMUR rib sing
a hexagon screw (see Fig. 6).
Control valve ith rod-type yoke
1. Screw the plate (20) to the carrier of the
pl g stem.
2. Screw the st ds (29) into the adapter
ho sing.
3. Place the ho sing with the mo nting
plate (30) on either the right or left side
(Fig. 6) of the pl g stem and fasten it
with the n ts (31). Make s re that the
lever (18) to be mo nted s bseq ently
is in horizontal position when the valve
is at mid-travel.
4. Screw the pin (19) into the center row
of holes in the plate (20) and lock it in
a position approximately above the cor-
rect lever marking (1 or 2) as in Table 6.
5. Clamp the clip (21) onto the lever (18).
If the positioner is attached with its air
connection pointing to the front (Fig. 6),
the clip m st be clamped onto the
lever (18) with the open side pointing
downward.
6. Pl g the lever (18) together with the
clamping plate (22) onto the shaft (25).
The chip m st clasp the pin (19).
2.2.2 Presetting the travel
1. Move the valve to 50 % travel.
2. Adj st the shaft (25) in the adapter
ho sing s ch that the black pointer (24)
matches the cast mark on the adapter
ho sing.
3. Fasten the clamp (22) tightly in this posi-
tion sing the screw (23).
4. Screw in the pin (27a) at the positioner
lever on the side of the insert n t and se-
c re it with the hex n t (27b) on the op-
posite side. Observe the mo nting posi-
tion A or B according to Table 6 and
Fig. 7.
5. Place the positioner on the adapter
ho sing, observing the operating direc-
tion. Make s re that the pin (27a) rests
against the bracket (28).
Caution!
The pin must not slip from the bracket once
it has been installed.
6. Fix the req ired range spring (Table 6)
between the diaphragm lever (3) and
span adj ster (6.1) sing the o ter slot.
7. Adj st the positioner as described in
section 4.1.
1 EB 8355-1 EN
Attachment according to IEC 0534-

Fig. 7 ⋅Attachment according to IEC 60534-6 (NAMUR)
2
1,5
1
24 25 22
32
31
20 19
19 21 2023 18
29
30
2826
AB
27b
27a
Attachment to
NAMUR rib
Mo nting position
Attachment to rods
18 Lever N1, N2
19 Pin
20 Plate
21 Clip
22 Clamping plate
23 Screw
24 Pointer
25 Shaft
26 Lever of the positioner
27a Pin
27b Lock n t
28 Bracket
29 St ds
30 Plate
31 N ts
32 Mo nting bracket
EB 8355-1 EN 17
Attachment according to IEC 0534-

Ta bl e 5 Control valve Travel in mm With lever Order no.
NAMUR mo nting kit
Parts see Fig. 7
Valve with casted yoke 7.5 to 60 N1 (125 mm) 1400-6787
22.5 to 120 N2 (212 mm) 1400-6789
Valve with
rod-type
yoke,
rod diameter
in mm
20 to 25 N1 1400-6436
20 to 25 N2 1400-6437
25 to 30 N1 1400-6438
25 to 30 N2 1400-6439
30 to 35 N1 1400-6440
30 to 35 N2 1400-6441
Attachment to Fisher and Masoneilan linear act ators
(one each of both mo nting kits is req ired per act ator)
1400-6771
and
1400-6787
Additional range spring Range spring 1 (9.5 coils, defa lt)
according to Table 6 Range spring 2 (4.5 coils)
1400-6442
1400-6443
Accessories Press re ga ge b ild-on block G 1/4: 1400-7458 1/4 NPT: 1400-7459
Press re ga ge kit SS/Br: 1400-6950 SS/SS: 1400-6951
Filter check valve, replaces the vent pl g and increases the degree of protection to IP 65 1790-7408
Assortment of spare parts incl ding seals and diaphragms 1400-9895
Ta bl e 6
Travel in mm *) 7.51515303060306060120
Pin on mark *) 1212121212
Distance pin/f lcr m of the lever 42 to 84 mm 84 to 168 mm
With lever N1 (125 mm long) N2 (212 mm long)
Pin (27a) on position A A B A B
Req ired range spring (see Table 5) 2 1 1 1 1
*) Intermediate val es m st be interpolated
18 EB 8355-1 EN
Attachment according to IEC 0534-

2.3 Attachment to rotary actuators
The positioner can be attached to rotary ac-
t ators according to VDI/VDE 3845 when
the accessories listed are sed.
The rotary motion of these act ators is con-
verted into a linear motion req ired by the
pne matic control nit of the positioner
sing the cam disk of the act ator shaft and
a cam follower roll on the positioner lever.
Table 7 Complete mounting parts, incl ding range spring 2, b t excl ding cam disk Order no.
Attachment acc. to VDI/VDE 3845, level 2 1400-8815
SAMSON Type 3278 Act ator 160 cm

1400-7103
VETEC Type S 320 cm

1400-7104
VETEC Type R R 110 to R 250 1400-7117
Attachment to
Masoneilan act ators
Camflex I, DN 25...100 1400-7118
Camflex I, DN 125...250 1400-7119
Camflex II 1400-7120
Required range spring
For standard operation of the reference variable, range spring 2 (4.5 coils) 1400-6443
For split-range operation, range spring 1 (9.5 coils, defa lt) 1400-6442
Reversing amplifier
For do ble-acting
springless act ators
Threaded connection G 1079-1118
Threaded connection NPT 1079-1119
Cam disk ith accessories

Linearizes the characteristic

Creates an eq al percentage characteristic

Depends on opening angle
Linear basi characteristic

(0050-0072), opening angle 0 to 90°
Eq. percentage basic characteristic

(0050-0073), opening angle 0 to 90°
Linear

(0050-0080), opening angle 0 to 70°, for control b tterfly valves
Eq al percentage

(0050-0081), opening angle 0 to 70°, for control b tterfly valves
Linear

(0050-0074, VETEC), opening angle 0 to 75°
Eq al percentage

(0050-0075, VETEC), opening angle 0 to 75°
Linear

(0059-0007, Camflex), to be adj sted between 0 and 55°
Eq al percentage

(0059-0008, Camflex), to be adj sted between 0 and 55°
1400-6664
1400-6665
1400-6774
1400-6775
1400-6666
1400-6667
1400-6637
1400-6638
Accessories
Press re ga ge b ild-on block G 1/4 1400-7458
1/4 NPT 1400-7459
Press re ga ge kit Stainless steel/brass 1400-6950
Stainless steel/stainless steel 1400-6951
Filter check valve, replaces the vent pl g and increases the degree of protection to IP 65 1400-7408
Assortment of spare parts incl ding seals and diaphragms 1400-9895
EB 8355-1 EN 19
Attachment to rotary actuators

Important!
Use proper range spring (1 or 2)! Range
spring 1 is installed by default.
Do ble-acting springless act ators req ire
the se of a reversing amplifier on the con-
nection side of the positioner ho sing (see
section 2.3.4).
When sing a reversing amplifier, the press-
re reg lator (9, Fig. 2) m st be t rned
clockwise as far as it will go (also see sec-
tion 3.1.2).
When attaching the positioner to the SAM-
SON Type 3278 Rotary Act ator (Fig. 8,
left), the act ators inside and the n sed
reverse side of the diaphragm are filled
with the positioners exha st air. Additional
piping is not req ired.
When attaching the positioner to other act -
ator makes (Fig. 8, right), the reverse side
of the diaphragm can be filled with air over
a t be connection installed between the ac-
t ator and the intermediate piece.
2.3.1 Mounting the cam follo er
lever
1. Place the lever with cam follower
roll (35) on the side of the feedback
lever (37) opposite the insert n ts.
Fasten with the s pplied screws (38)
and washers.
Important!
To ensure a close physical contact between
the cam follower roll and the cam disk, fix
the spring contained in the accessories kit
(order no. 1400-6660) at the rear of the po-
sitioner housing (see Fig. 5)
2.3.2 Mounting the intermediate
piece
SAMSON Type 3278 Actuator
1. Screw the adapter (36) to the free end
of the act ator shaft.
2. Attach the intermediate piece (34) to
the act ator ho sing sing two screws
each.
Align the intermediate piece to ens re
that the air connections of the posi-
tioner point towards the diaphragm
ho sing.
3. Align the cam disk (40) and scale (39)
as described in section 2.3.3 and fasten
with screws.
Actuators according to VDI/VDE 3845
(fixing level 1)
1. Place the complete intermediate piece
(34, 44, 45, and 42) onto the mo nting
bracket (43) that came with the act ator
and fasten with two screws.
2. Align the cam disk (40) and scale (39)
as described in section 2.3.3 and fasten
with screws.
20 EB 8355-1 EN
Attachment to rotary actuators