BTK1 Battery Replacement Tool Kit, Rev G Page 1 of 7TCM & MAT Data Logger Battery Replacement InstructionsThese instructions apply to thefollowing products:• MAT-1 Data Logger• TCM-1 Current Meter• TCM-2 Wave and Current Meter• TCM-3 4500m Current MeterThe instructions assume that the userhas purchased the MAT-1 BatteryReplacement Tool Kit.Materials:• Circuit Board Holding Tool• 3/32” Hex Driver• Replacement “A” size lithium battery• Replacement desiccant packs (optional)Caution: This logger is sensitive to static electricity when removed from the logger housing.Hold the circuit board by the edges and avoid working on indoor carpet or in other static proneenvironments.Important: For loggers with serial numbers not between 2004043-2004058, and lower than 2006000,the lithium metal batteries should be tested and conditioned prior to deployment. Conditioning isnecessary to ensure that the battery has not become passivated during storage. (Passivation is atemporary build-up of resistance in the battery that prolongs its storage life, but reduces peak currents.)Conditioning is performed by running the battery briefly prior to field deployment. See Steps 14-17. If youare unsure whether this applies to your device, please go to Step 19: Identifying a Newer Model, afteryou have completed steps 1-7.General Instructions1. Remove the end cap of the logger, connect a USB cable and use Domino to stop the logger.Failure to stop a running logger will result in data loss.2. Slide the Circuit Board Holding Tool into the end of the logger. Aligning the slot in the tool withthe circuit board.3. Locate the two hex screws inside the logger and insert the hex driver into one of them.4. Loosen, but do not remove the screw. Repeat on the other side.Align Circuit Board HoldingTool and insert fully intologger housing.Carefully use the Hex Driver toloosen set screws located inside thelogger (see next page).