Magnetrol International Level Switch A15-1H3Q-HM3

Unpacking and Initial Inspection

Unpack the instrument carefully

Report any concealed damage to carrier within 24 hours

Check the contents of the packing slip

Verify against the purchase order

Record the serial number for future reference

Inspect actuating lever for excessive wear

Check for misalignment of adjustment screw at point of contact with lever

Is the switch mechanism free from defects or maladjustments?

Check for brittle insulation on electrical wiring

Replace wiring with brittle insulation

Check all terminal connections for loose screws

Inspect the switch housing cover for damage or misplacement

Check for any damaged or missing seals

Ensure the switch housing cover is in place

Clean the exterior of the switch housing to remove dust and dirt

Verify that no moisture or corrosive gases have infiltrated the switch housing

Is the switch housing cover intact and properly sealed?

Ensure enclosing tube is tightened and middle set screw is locked to the enclosing tube.

Is the control equipped with a pneumatic switch mechanism?

Loosen set screw(s) at base of switch housing.

Rotate switch housing to desired conduit entry position.

Tighten set screws at base of housing.

Unscrew and remove switch housing cover.

Ensure the instrument is used in Installation Category II, Pollution Degree 2.

Handle displacer spring and stem with care to avoid damage.

Displacer Adjustment and Installation

Adjust displacers on the cable for desired switch actuating levels.

Screw displacer cable fitting to the threaded connection link.

Ensure no obstacles in the tank or vessel interfere with displacer operation.

Is a guide pipe or tube necessary due to liquid turbulence?