Electrical Control Unit; Malfunctions - Burkert 2730 Manuel D'utilisation

Type 2730 / 2731 / 2731K

Electrical control unit

8. elecTrical cOnTrOl uniT
The valve Type 2730 / 2731 / 2731K can be combined with fol-
lowing control units:
• Type 8630 Positioner TopControl Continuous
• Type 8635 Positioner SideControl
• Type 8692 Positioner TopControl
• Type 8694 Positioner TopControl Basic
• Type 8792 Positioner SideControl
• Type 8693 Process controller TopControl
• Type 8793 Process controller SideControl
Follow instructions for use in the Ex area!
See chapter "3.1".
The electrical connection of the control unit is described in
the respective operating instructions for the control unit.
9.

MalfuncTiOns

malfunction cause /remedial action
Actuator does Pilot air port interchanged
not switch.
CFA:
CFB:
Pilot pressure too low
See pressure specifications on the type label.
Medium pressure too high
See pressure specifications on the type label.
Valve is not Medium pressure too high
sealed. See pressure specifications on the type label.
Pilot pressure too low
See pressure specifications on the type label.
Flow rate PTFE diaphragm bulging
→
reduced.
Replace diaphragm.
Tab. 12: Malfunctions
see "Fig. 19: Pneumatic connection"
5)
english
5)
Connecting lower pilot air port
Connecting upper pilot air port
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