Ohaus Explorer Balances EX324

Ensure the balance has passed the Precision and Repeatability Tests

Ensure the balance is calibrated before performing the Linearity Test

Record the weight of the Reference Mass on the Balance

Place Load 1 on the Balance and press TARE

Record the weight of the test mass after placing it on the Balance

Place Load 2 on the Balance and press TARE

Record the weight of the test mass after placing it on the Balance

Open the balance and verify no mechanical interference, pinched wire, or bad solder connection

Remove the Load-cell Shield by lifting vertically (Note: Top Loader models do not have a Load-cell Shield)

Disconnect the two Load Cell connections at the Main PCB

Remove the Load Cell by unscrewing the 4 load cell screws from the bottom housing and lift the Load Cell Module from the Base

Reverse the disassembly procedure to assemble the balance

Ensure no foreign material between the Base mounting surfaces and the Load cell

Route the wires and cables properly for RFI/ESD performance, ensuring they are not pinched during reassembly

Pan and Sub Pan Inspection and Cleaning

Remove the Pan and Sub Pan to inspect the area beneath the Pan

Clean the outside of the balance using a damp cloth with warm water

Check the Power Cord for broken or damaged insulation

Make a visual inspection for faulty connectors, wiring, and loose hardware

Note any issues found during inspection

CAUTION: DO NOT USE CHEMICAL CLEANERS OR SOLVENTS OF ANY TYPE. SOME CLEANERS ARE ABRASIVE AND MAY AFFECT THE BALANCE’S FINISH.

Use a broad blade to remove the label from a corner

Ensure not to cut into the plastic Housing or yourself

Work slowly to allow adhesive time to release

Wear eye protection when using a knife

Clean the glue residue from the Housing surface

Use a section of the adhesive on the removed label to pick up remaining adhesive

Use knife or fingers to roll up remaining adhesive

If adhesive smears, use a cotton cloth to pick up as much as possible

Remove the Terminal Main PCBA and the LC Display

Remove the Terminal top housing

Install a new Terminal top housing