13Using Setup in pH ModeThe setup key lets you clear all buffers/standardsthat have been entered, review standardizinginformation, and select the desired buffer or setof standards.Note: Press setup repeatedly to return tomeasurement mode.1. Press setup; the word Clear flashes on thedisplay. Continue with this step only if you wishto clear all buffers entered. To clear all existingbuffers, press enter. The meter clears all buffersand returns to measuring mode.2. Press setup again to show electrode perform-ance. If two buffers are stored, OK is displayedwith the electrode symbol, the slope betweenthe first and second buffers, and the two buffersymbols.3. Press setup again to show the electrode slopebetween the second and third buffers (if threebuffers have been entered) and the second andthird buffer symbols.Note: The symbols are displayed as describedonly if buffers are stored.4. Press setup again; Set flashes and the firstbuffer set (U.S.: buffer series) is shown.5. Press enter to select the set of buffers displayedorPress setup again to show the next set ofbuffers (Merck buffer set), and again for thethird buffer set (NIST buffer set).ClearpH4 7Set2 4 7 10 12pHstandardizesetupentermodestandardizesetupentermode