Fluke 279FC Calibration Guide - Page 20

279 FC Calibration Manual Maintenance XWWarning To prevent a possible electrical shock, fire, or personal injury: • Disconnect the battery charger and move the Product or battery to a cool, non- flammable location if the rechargeable battery becomes hot (>50 °C) during the charge period. • Replace the rechargeable battery after 5 years of moderate use or 2 years of heavy use. Moderate use is defined as recharged twice a week. Heavy use is defined as discharged to cutoff and recharged daily. • Batteries contain hazardous chemicals that can cause burns or explode. If exposure to chemicals occurs, clean with water and get medical aid. • Do not short the battery terminals together. • Do not disassemble or crush battery cells and battery packs. • Do not put battery cells and battery packs near heat or fire. Do not put in sunlight. Clean the case with a damp cloth and weak detergent. Do not use a solvent or cleaners with abrasives. Dirt or moisture in the terminals can cause incorrect measurements. To clean the terminals: 1. Turn off the Multimeter and remove all test leads. 2. Shake the Multimeter to remove any possible debris from the terminals. 3. Soak a clean swab with weak detergent and water. 4. Move the swab around in each terminal. 5. Dry each terminal with canned air to push the water and detergent out of the terminals. Battery Charge The battery pack must be removed and charged outside of the Multimeter. See Figure 5. To remove and charge the battery pack: 1. Turn off the Multimeter and remove all test leads. 2. Extend the tilt stand to expose the battery door. 3. Turn the battery-door latch until the unlock symbol () aligns with the arrow. 4. Lift off the battery door/tilt stand. 5. Remove the battery pack and recharge. 16