Harford SM-200 Installation Manual

Installation, Operation & Maintenance Manual

SM-200 Limit Switch

description

• Jomar SM-200 limit switch is deigned for use with quarter turn
pneumatic actuators.

• Visual dome indication: Red-Closed

• NAMUR mounting

• Terminal strip: 8 position

• Enclosure: IP67

• Switches: SPDT

• Mounting: Standard bracket supplied

mounting

• Verify that correct bracket has been supplied with limit switch.

• Align limit switch shaft with actuator shaft.

• Mount to actuator by tightening the appropriate size screws.
(do not over tighten)

Yellow-Open

warning:

DISCONNECT ALL ELECTRICAL

POWER CONNECTIONS TO AVOID

ELECTRICAL SHOCK.

DISCONNECT AND VENT ANY

PNEUMATIC CONNECTIONS TO

AVOID INJURY.

switch adjustment

• A multi-meter will be required to proceed.

• Attach leads from meter to appropriate terminals.

• Simply lift the green open position switch and place the cam in
such a position that the switch will make and be verified by the
reading of the impedance mete
position cam.

r. Do the same with the red closed

indicator setting

• Ensure dome indicator shows correct open or closed valve
position.

• Dome can be adjusted by loosening the 4 screws on top of
switch and rotating the dome indicato

• When re-installing housing, do not over tighten screws.

r.

wiring

• Wiring should be completed by properly licensed electricians to
avoid injury.

• Loosen 4 screws securing upper half of housing and remove.

• Terminals 1 through 6 are for mechanical switch wiring.

• Terminals 7 & 8 are for solenoid valve wiring.

• Refer to wiring diagram at left.

®

®

automation

actuation for the future

maintenance

• Only visual inspection is required to ensure proper operation of
limit switch.

Jomar International • 7243 Miller Drive • Warren, MI • 48092
Phone: [phone] • Fax: [phone] • www.jomar.com