Samson 611 - Principle of Operation; Accessories; Mounting Position of the Converter

EB 6116 EN 29
Mounting and start-up
5.5.1 Principle of operation
When operated, the supplied direct current i
owsthroughtheplungercoil(2)locatedin
theeldofapermanentmagnet(3).Atthe
balance beam (1), the force of the plunger
coil, which is in proportion to the current, is
balanced against the force of the dynamic
backpressure. The backpressure is produced
ontheapperplate(6)bytheairjetleaving
the nozzle (7).
The air supply for the nozzle is taken from
the pneumatic positioner (connection to the
pneumaticinputsignal–inputsignal27).
5.5.2 Accessories
Certain mounting accessories are required
for attachment of a positioner (see sec-
tion3.3).
5.5.3 Mounting position of the
converter
Î Mount the converter horizontally using
the adapter (8, 9) onto the control valve
or positioner. In this case, the cable entry
must face sideways away from the con-
trol valve or positioner.
Î Make sure the O-ring (10) to seal the en-
closure is inserted correctly.
2
3
1
7
6
13
8(9)
11
14
10
Positioner
Input signal 27
Supply air
Type6116
1 Balancebeam
2 Plunger coil
3 Permanent magnet
6 Flapper plate
7 Nozzle
8 Adapter (3766)
9 Connecting piece
10 O-ring
11 Vent plug
13 Flameprotectionlter
14 Restrictor with air supply
Fig.12: Functional diagram of version mounted on a positioner