Correcting and Clearing Entries

If you enter an incorrect number, press AC to clear the entire displayed number, then re-enter the correct number. If you press an incorrect mathematical function key, simply press the correct function key afterward.

If “ E ” appears in display:

The answer to a calculation is more than 10 digits.

The memory is full.

0 has been used as a divisor.

Press CLR to remove the “ E ” and continue.

MEMO

Changing Batteries

Batteries need to be changed as soon as display becomes dim.

1.Turn the unit over.

2.Remove the screw and the battery cover.

3. Remove both old batteries.

4.Insert 2 new CR2025 batteries with “ + ” side facing you.

5. Replace the battery cover and the screw.

6.Press the “RESET” button on the bottom of the unit.

*Do not use a previously used battery together with a new battery.

*Do not expose the battery to open flame or intense heat.

• The product battery may pose a choking hazard to small children.

• Keep the battery and product away from small children.

*If the unit does not operate properly after the battery has been replaced, or if at any time the unit fails to operate properly, gently press the “RESET” button on the bottom of the unit.

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Seiko WP5402R operation manual Changing Batteries, Correcting and Clearing Entries, If E appears in display