How do I calibrate the setpoints on this mechanical control

including CSHA140K0000 and CSHA140K0E00

Enhanced Accuracy: The integrated pneumatic positioner eliminates hysterisis and ensures repeatable valve assembly performance

4 VAC or less and a drop-out voltage of 7

Armstrong International C5534 Air Vent Els PW 29614 How do I calibrate theThe Armstrong International C5534 Air Vent is a high performance Series 1AVC See Thru Air Vent engineered for the continuous removal of air and non condensable gases from hot water systems and specialized steam applications. Featuring a 1 2" NPT connection and a 1 8" orifice, this industrial air vent utilizes a transparent polysulfone body, allowing for immediate visual inspection of operation without system downtime. Designed to withstand a maximum