Ohaus Indicator T71XW

Ensure the Indicator is ON and no mass is on the scale base.

Lift up on the scale base platform and check if the display indicates Error 8.2.

Release the platform and verify the display returns to zero.

Place a mass on the scale base platform that slightly exceeds its capacity.

Check if the Indicator display shows Error 8.1.

Remove the mass and verify the display returns to zero.

Ensure not to exceed Load Cell capacity during the test.

Ensure communication parameters are set according to Section 1.9.1

Connect the Indicator to an external printer or computer

Press the Print/Units button on the Indicator

Did the external printer or computer receive the print command?

Describe any issues encountered during the test

Separate the Top and Bottom Housing

Remove the four screws holding the Display PCB to the Top Housing

Carefully lift out the Display PCB to avoid stretching the fine plastic ribbon cable connected to the Membrane Switch

Gently remove the two ribbon cables connected to the Membrane Switch and the Main PCB, avoiding bending the pins

Connect the ribbon cables to the replacement Display PCB and position the board over the screw holes

Unplug the AC Adapter before cleaning.

Has the Indicator been moved from a different temperature area?

Select the Indicator model and perform the appropriate cleaning procedure.

Ensure no chemical cleaners or solvents are used.

Check the Power Cord for broken or damaged insulation.

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

Plug the AC Adapter or line cord into a suitable power source

Press the ON/ZERO Off button with the Indicator connected to power

Check if all displays appear normal during the self-test

If the display did not appear, check AC input and adapter functionality

If the display was erratic, the PC board requires replacement