rotork YT-1200 Series, Руководство по эксплуатации продукта

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Pneumatic Positioner
YT-1200 series Product Manual
Ver. 1.18
42
6.5
Orifice Installment
If the actuator size is too small relative to the flow rate of positioner, hunting can occur. In order to avoid
hunting, the orifices can be installed in the outports of the pilot.
1)
Separate the pilot unit from the positioner.
2)
Separate the o-rings from out1 and out2 ports, and insert the orifices. Before re-assemble the
o-rings, please make sure there is no remaining dust or particles on the ports.
3)
Standard diameter of the orifice hole are 1 mm. 2 mm diameter orifice can be ordered.
Fig. 6-11: Installing orifices