15
HPP5500
series
4. Connections
4.1 Safety
Supply pressure should be clean and dry air – avoiding moisture, oil or dust.
Always recommended to use air filter regulator (i.e. YT-200 series).
TRIMTECK
has not tested positioner’s operation with any other gases other than
clean air. Please contact TRIMTECK for any questions.
4.2 Supply
Pressure
Condition
Dry air with at least 10
℃
lower than ambient temperature.
Avoid from dusty air. Positioner’s inner filter can only filter 5 micron or larger.
Avoid
oil.
Comply with ANSI/ISA-57.3 1975(R1981) or ISA S7.3-1975(R1981).
Supply pressure range is 0.14 ~0. 7MPa (1.4~-7 bar)
Set air filter regulator’s pressure level 10% higher than actuator’s spring range pressure.
4.3 Piping
Condition
Ensure inside of pipe is clean of obstructions.
Do not use pipeline that is squeezed or shows any type of damamges.
Pipeline should have more than 6mm of inner diameter (10mm outer diameter) to
maintain flow rate.
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
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.
Fig. 7: Singe acting linear (left) and rotary (right) type actuator