Adjustment - SMC Networks IP8000 Operation Manual

7.Adjustment

(1) For this positioner, span and zero point adjustment of each actuator is necessary.
Adjustment shall be done based on each actuator size.
(2) Keep in mind that span and zero point adjustment interfere in each other.
(3) Characteristics changes due to change of mounting position, ambient temperature and
supply pressure.
(4) If it takes long time until operation after initial adjustment, check and adjust this product.
(5) Sensitive adjustment is effective for only double acting actuator.
(6) Manual change function is effective for single acting actuator which is controlled by using
OUT1.
Check the following prior to start the adjustment.
(1) Check that the pipeline is correctly connected with the pressure supply port and OUT1
and OUT2 ports.
(2) Check that the wires are correctly connected with the (＋), (－) and grounding terminals.
(3) Check that the actuator and positioner are sturdily connected.
(4) Check for locking of the auto/manual changeover screw of pilot valve (fully tightened in
the clockwise direction).
(5) Check that the span adjusting lever of internal feedback lever (Type IP8000) is attached
to the correct (normal or reverse) position. (Refer to Tables 2.)
(6) Check for correct use of the cam surface (normal or reverse) in Type IP8100 and that the
flange nut is firmly locked.
(Refer to Table 3.)
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Caution
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