Ytc YT-700 Series, Руководство по эксплуатации продукта

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10
YT-700 series
3.2 Manual Switch
The manual switch can be adjusted by hand or by screw
driver (-). At the manual position (M), the valve can be
opened without power supply. At the automatic position (A),
the valve can be operated per input signal. DO NOT TURN
THE MANUAL SWITCH WITH FORCE, AS IT CAN BE
DAMAGED.
For YT-700D (4 way), the air channel will be switched as
below.
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).

Young Tech Co., Ltd has not tested positioner’s operation with any other gases other
than clean air. Please contact Young Tech Co., Ltd 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 1.4 ~ 7 kgf/cm
2
(140-700 kPA)

Set air filter regulator’s pressure level 10% higher than actuator’s spring range pressure.