These instructions apply both when installing a battery pack into a new instrument and when replacing the battery after a deployment. When opening the instrument, great care should be taken to keep the sealing surfaces clean and protected from mechanical damage. Before opening, take note of the end cap orientation in respect to the housing. Ensure that the instrument is reassembled in the same configuration.
- Detach any existing connections to the instrument.
- Remove the end cap from the pressure case. This can be done by removing bolts and washers connecting both parts (Signature, battery canister).
- Carefully disconnect the Molex connector. Gently remove the battery without pulling on the cables.
- Insert the new battery into the pressure case and connect it using the 2-pin harness connector.
- Place a fresh desiccant bag in the pressure case, as humid air can condense enough water do damage the electrical circuitry.
- Attach the remaining Molex connectors to the end cap. Ensure cables are arranged to avoid being pinched during reassembly.
- Confirm O-rings are free from dust/particles and not damaged. We recommend replacing and/or greasing them as described in the O-ring care article. This step is crucial, as it ensures that the instrument does not leak!
- Align with the end cap with the pressure case in their original orientation. Reattach the end cap. See the chapter Securing Screws for details on correct tightening technique and necessary torque.
Functional checks
Check the LED. It should be lit up for 5min after connecting a battery pack.
Test the instrument by collecting data without using an external power source to ensure that the battery is properly connected. Make sure to stop data collection so that the instrument will power down after you are through testing it.
Battery disposal
If you have lithium batteries, keep in mind that you must be very careful and that disposal requires special precautions and/or procedures. Rules for disposal of batteries, especially lithium batteries, vary from country to country.
Additional resources
Storage guidelines can be found in the chapter: Power.
For visual guidelines on battery exchange, please see this video created by our support team: