IM-P343-44 CTLS Issue 518
EP500 Standard Electropneumatic Positioner
4.1 Set the valve action
Firstly, with reference to Figure 19, determine the action that is relevant to your application.
To change the slider turn the red gear until the slider is positioned into the correct half of the
span arm.
* Please note that the arrow illustrates the stem movement direction when the input control
signal increases.
Fig. 19
Direct action
Reverse action (inverse polarity input signal)
4. Commissioning
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