Ohaus Adventurer ™ Balances AX423N/E

Turn off the balance and unplug the power cord

For a balance with a Draft Shield

Remove the weighing pan and wind ring and set aside

Remove the EMC plate by removing the two screws holding it to the balance top housing

Remove the two screws securing the draft shield housing to the balance

Remove the balance top housing by lifting the back upwards and sliding it forward

Remove the keypad membrane cable by unfastening the connector

Remove the TFT LCD cable by lifting the connector lock upwards

Inspect the InCal mechanism for any visible damage

Clean the InCal test weight and surrounding area

Ensure all components are securely fastened

Place a mass weighing half of the balance’s capacity in the center of the Pan.

Press the On/Off button to return the reading to zero.

Move the mass halfway to the rear of the Pan and note the reading.

Move the mass halfway between the center and the left edge of the Pan and note the reading.

Move the mass halfway between the center and the right edge of the Pan and note the reading.

Move the mass halfway to the front of the Pan and note the reading.

Ensure the device is powered off

Gather necessary tools for replacement

Remove the balance load cell metal cover

Verify visibility of the Strain Gage load cell

Locate the cable connecting the Strain Gage load cell to the balance main PCBA

Remove the cable connecting the Strain Gage load cell to the balance main PCBA

Ensure the balance is free from drafts

Set Auto-Zero to Off, in Menu Setup

Open the balance (See Section 3.1)

Plug the power cord into the balance and turn it on

Place a mass that weighs the balance’s full capacity on the center of the Pan

Press O/T (the center button) to tare the balance and return the displayed weight to 0g

Move the mass to the front, back, left and right edges of the Pan and note the displayed values