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➢ The length of pipeline system should not be extremely long. Longer pipeline system may affect flow rate due to the
friction inside of the pipeline.
4.4 Connection – Actuator
4.4.1 Single acting actuator – SR-3300
Singe acting type positioner is set to use OUT1 port. OUT1 port should be connected with supply pressure port from actuator
when using single acting type of spring return actuator.
4.5 Connection – Power
4.5.1 Safety
➢ When installing in hazardous and explosive gas area, conduit tube or pressure-proof packing union must be used. The
compound charging box should be the flameproof type and must be sealed completely.
➢ Conduit entry connection tap is PF 1/2 or G 1/2.
➢ Before connecting terminal, ensure that the power is off completely. Do not open the cover when the power is still
alive.
➢ Positioner should be grounded.
➢ Please use twisted cable with conductor section are 1.25 mm
2
and that is suitable for 600V (complying to the conductor
table of NEC Article 310.) The outer diameter of the cable should be between 6.35 ~ 10mm. Use shield wire to protect
against electro-magnetic field and noise.
➢ Please do not install the cable near high noise equipments, such as high-capacity transformer or motor.
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