Maguire Weigh Scale Blender WSB-421

Inspect load cell for physical damage

Check load cell wiring connections

Verify the following components are secure

Is the zero weight reading within acceptable range?

Is the full weight reading within acceptable range?

Locate the adjustment screw at the rear of the sensor

Use a very small regular screwdriver for adjustment

Turn the adjustment screw clockwise until the LED turns ON

Turn the adjustment screw counter-clockwise until the LED turns OFF

Continue turning counter-clockwise for one full revolution after the LED turns off

Check if the LED turns on when material is present in front of the sensor

Note any additional adjustments made due to material dust or static

Sensor Position Adjustment (200 and 400 Series Models Only)

Enter the current air pressure reading

Select the recommended air pressure for the model

Is the air pressure set correctly for the model?

Inspect the pneumatic system for the following issues

Is the coalescing filter functioning properly?

Is the air supply clean and dry?

Is the air supply non-lubricated?

Verify the load cell cable is plugged into the controller

Ensure the weigh bin is resting freely on the load cells

Check the air line to the weigh bin’s dump valve is connected

Ensure the load cells and bin are not jammed

Is *47 disabled on the WSD for calibration?

Perform zero weight calibration routine

Pneumatic and Electrical Lockout/Tagout (LOTO)

Ensure blender is pneumatically and electrically locked out

Disconnect compressed air supply

Is the pneumatic valve actuator manually operated?

Use lockout/tagout valve for pneumatic lockout/tagout if applicable

Disconnect blender from air supply if directly connected

Dissipate stored/residual energy from pneumatic system using Manual Operations screen

Is the blender equipped with an electrical LOTO box?