Installation and Operating manual
Econ
®
Series 3300 Smart Valve Positioner www.eriks.com www.eriks.com
18
5 Adjustments
5.1 Auto/Manual Switch (A/M Switch)
Auto/Manual Switch allows the positioner to be functioned as by-pass. If switch is set as
Auto, the positioner will operate per input signal. If switch is set as Manual, the positioner
will send supply pressure directly to the actuator.
5.2 Variable Orifice Adjustment
Extremely small size of the actuator can cause hunting of the positioner. To adjust flow rate
to the actuator, variable orifice can be inserted. The size of orifice is Ø 1 mm. Please note
that these orifices can only be used in conjunction with a gauge block. The orifices are
supplied standard with the optional gauge block.
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