Elma BM811 Elma BM817 Elma BM515 - Elma Instruments

Elma 811 + 817 + 515 side 74Battery and fuse replacementBattery:Single 9V battery NEDA1604, JIS006P or IEC6F22;or 9V alkaline battery NEDA1604A, JIS6AM6 or IEC6LF22Standard version BM810 & BM510 series fuses:Fuse (FS1) for μAmA current input: 0.63A/500V, IR 200kA, F fuse;Fuse (FS2) for A current input: 12.5A/500V, IR 20kA, F fuseX version BM810X & BM510X series fuses:Fuse (FS1) for μAmA current input: 1A/600V, IR 100kA, F fuse;Fuse (FS2) for A current input: 15A/1kV, IR 10kA (or 11A/1kV, IR 20kA), F fuseCF version BM810CF & BM510CF series fuses:Fuse (FS1) for μAmA current input: 1A/1kV (or 0.44A*/1kV), IR 10kA, F fuseFuse (FS2) for A current input: 15A/1kV, IR 10kA (or 11A/1kV, IR 20kA), F fuse*The 0.44A fuse is also recommended since it has a time-current characteristic curves projection ofapproaching infinity at 0.5A. It can also be loaded way beyond 1000 seconds at 1A, and has a fastacting characteristic of below 0.01 second at beyond 2.5A. This protection characteristic alsomatches our meter well.Battery replacement for models with battery access door:Loosen the 2 screws from the battery access door of the case bottom. Lift up the battery access doorand with it the battery compartment. Replace the battery. Re-fasten the screws.Fuse replacement (and also batteryreplacement for splash proofversion without battery accessdoor):Loosen the 4 screws from the casebottom. Lift the end of the casebottom nearest the input jacks untilit unsnaps from the case top.Replace the blown fuse(s) and/orthe battery. Replace the casebottom, and ensure that all thegaskets are properly seated and thetwo snaps on the case top (near theLCD side) are engaged. Re-fastenthe screws.