Calibrating a Fisher™ 3582 Positioner - Zero and Span

Learn about proper calibration procedures, including zero and span, for the Fisher 3582 pneumatic positioner.

Steps include:
1. Move the flapper to the mid-range of its travel.
2. Apply a signal equal to the bottom of the input range.
3. Adjust the nozzle to make the needle on the output gauge sit softly on the zero pin.
4. Increase the input to find the low saturation point.
5. Increase the input and watch for the high saturation point.
6. Adjust the flapper assembly to set span and move the upper saturation point.

Additional Resources:
– Fisher 3582 Instruction Manual: http://emr.sn/3YH7
– Fisher 3582 Product Bulletin: http://emr.sn/n9PF
– Fisher 3582 Product Webpage: http://emr.sn/Kn5W

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