Model For Control Of Third-Party Devices - Burkert Positioner TopControl Basic Quick Start Manual

5.2 Model for control of third-party
devices
A special model enables the positioner Type 8696 to be attached
to third-party devices.
This model has a different basic housing so that the pilot air
ports can be connected to the outside of the actuator.
Fig. 3: Model for third-party devices
ATTENTION!
Damage or malfunction due to ingress of dirt and moisture.
▶ To comply with protection class IP65 / IP67, connect the
pilot air outlet (only for CFA or CFB) which is not required to
the free pilot air port of the third-party device or seal with a
plug.
8
Electrical connection
(circular plug-in connector)
Exhaust air port
(label: 3)
Fastening screws (2 x)
Pilot air port
(label: 1)
Pilot air outlet 2
1
Pilot air outlet 2
2
Basic housing
english
Type 8696 REV.2
System description
"In rest position" means that the pilot valves of the posi-
tioner Type 8696 are isolated or not actuated.
If the ambient air is humid, a hose can be connected between
pilot air outlet 2 of the positioner and the unconnected pilot
2
air port of the third-party device for control function A or
control function B. As a result, the spring chamber of the
third-party device is supplied with dry air from the vent duct
of the positioner.
Control function Pneumatic connection
(CF) Type 8696 with third-party device
Process valve
Pilot air outlet
closed in rest
A
position
(by spring force)
Process valve
Pilot air outlet
open in rest
B
position
(by spring force)
Tab. 1: Pneumatic connection to third-party device
1) Connection optionally, see note.
2
1)
2
2
1
2
1
2
1)
2