Smart Positioner
YT-3700 / 3750
Product Manual
Ver. 1.03
29
4
Connection - Air
4.1
Safety
➢
Supply pressure should be clean and dry air
– avoiding moisture, oil and dust.
➢
Always recommended to use air filter regulator (i.e. YT-200 series).
➢
Rotork YTC Limited
has not tested positioner’s operation with any other gases other than
clean air. Please contact Rotork YTC Limited for any questions.
4.2
Supply Pressure Condition
➢
Dry air with dew point of at least 10
℃
lower than ambient temperature.
➢
Avoid from dusty air. Use 5 micron or smaller filter.
➢
Avoid oil.
➢
Comply with ISO 8573-1 or ISA 7.0.01.
➢
Supply pressure range is 0.14 ~0.7 MPa (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.
