Refraction Technology 130-01, Operation Manual

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130-01 Operations
Refraction Technology, Inc. 70
4.5 Replace CPU Battery (130-01/3 and 130-01/6)
The CPU board has a 3.6 volt back-up battery, located in the well area, to
retain CPU RAM when the recorder is powered off or asleep. If the LCD
display shows less than 2.2 volts for the battery it should be replaced.
Refer to Figure 52 on page 69
1. The power to the 130-01 may be left on so data in memory will not be lost.
2. Remove the cap (130-9002) (Item 19) from the well disk enclosure (Item 3).
3. Disconnect the connector for the battery from the pins located next to the fin clip
inside the well.
4. Gently remove the battery assembly (130-9007) (Item 18) from the fin clip
inside.
5. Insert the new battery assembly (130-9007) (Item 18) into the fin clip inside the
well disk enclosure (Item 3).
6. Attach the connector off the new battery assembly (130-9007) (Item 18) to the
pins located next to the fin clip inside the well disk enclosure (Item 3).
7. Check the LCD display to be sure the voltage is now close to 3.6 volts.
8. Screw the cap (130-9002) (Item 19) onto the well enclosure (Item 4).
9. Once the cap bottoms out to the flange turn the cap ONLY A HALF TURN to seal
the well.
Battery voltage