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Jomar Valve ・ 7243 Miller Drive, Warren, MI 48092 ・ www.jomarvalve.com ・ phone: (586) 268-1220 ・ fax: (586) 979-8315
Note: Information subject to change without notice.
Span Adjustment
1. Adjust Range Adjustment so that an Actuator stops at 0% position of the Stroke by the 0%
applied input signal and 100% position for 100% input signal respectively.
2. Check Zero Point and repeat Zero Span Adjustment. _ Split Range can be used by Zero and Span Adjustment.
3. After Setting, tighten up Lock Screw of Span adjustment.
Auto/Manual Switch
1. This is a Switch for changing from Auto and Manual.
2. Shipped products are set for Auto. To use Manual operation, turn A/M Switch counterclockwise.
3. In manual operation, the supply pressure is routed directly to the actuator through output 1.
4. This feature is only available for directing supply pressure through output 1.
Seat Adjuster (sensitivity adjustment)
1. No need to adjust in the field because the Seat Adjuster Is adjusted before
shipment for balanced pressure point of output pressure.
2. Seat Adjuster is always used for Double-acting. If the need arises to balance
pressure point of output Pressure, use Seat Adjuster.
3. If the sensitivity is poor because of the actuator type or load condition, turn the seat adjuster screw counterclockwise.
(The amount of turning varies by actuators. Do not loosen the stopper screw at
this time since it is set to avoid coming off the seat adjuster.)
4. If hunting occurs due to an actuator of small capacity, refer to description in Options on page 11.
