Ohaus Adventurer ™ Balances AX423M

Remove the balance load cell metal cover to expose the Block Style load cell.

Locate and remove the 2 cables connecting from the Block Style load cell to the balance main PCBA.

Locate and remove the 4 screws securing the Block Style Cell to the bottom housing.

Ensure the following components are removed

Is the area clean and free of debris?

Turn off the balance and unplug the power cord

Preliminary Steps 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

Detach the latch located at the right front of the balance

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.

Locate and remove InCal components

Set the InCal test weight aside securely

Tare the balance. Ensure the reading on the display is 0g.

Record the reading after placing a mass near the maximum capacity on the center of the Pan.

Remove the mass and ensure the reading returns to 0g ±1 count.

Repeat the test three times and ensure readings are within ±1 count of the recorded reading.

Is the deviation within the tolerance listed in Table 4-1 or 4-2?

Inspect and correct the following areas if deviation is greater than tolerance