Burkert 2300 Series Petunjuk Tambahan - Halaman 8
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Length of the pilot air line:
The length of the pilot air line should be adjusted to the
actuator size. The dead space volume which occurs
due to the pilot air line may negatively affect the control
characteristics.
In principle, the following applies: the smaller the actuator,
the more sensitively the control system reacts to the
length of the pilot air line.
Procedure for single-actuating actuators, control function A
and B:
→ Connect working port 2 of the positioner Type 8635 via a
hose to port 1.
Working port 2, see "Fig. 1".
→ Fit exhaust air line or a silencer to port 3
The applied supply pressure must be 0.5 to 1 bar greater than
the minimum control pressure specified on the control valve. This
ensures that the control behavior is not very negatively affected in
the upper stroke range due to too little pressure difference.
During operation keep the fluctuations of the supply pressure low
(max. ±10 %). If fluctuations are greater, the control parameters
measured with the X.TUNE function are not optimal.
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english
Type 8635, Remote-Positioner
Assembling the position sensor
3.4
Electrical connection of the position
sensor
DANGER!
Danger due to electrical shock.
▶ Switch off the power supply and secure it against reactivation.
→ Feed the cable of the positioner (with flat plug fitted) through
the cable gland of the position sensor.
→ Connect the 3-pin flat plug of the positioner to the coun-
terpart of the potentiometer.
Fig. 11: Electrical connection
3-pin flat plug
Cable gland of the
position sensor