儀器儀表配置内容
CONFIGURATION(Cont.)
NUMERICENTRY
Therearetwotypesofnumericfieldwhichcanbeidentified-those
whichdisplayoneofafixednumberofchoiceswhicharescrolled
throughusingtheup/downarrowkeys(e.g.chartspeed),andthose
whichhavetobeenteredcharacterbycharacter.Scrollablefieldscan
berecognisedbecauseallthedisplayedcharactersflashtogether,
whereascharacter-by-characteritemsflashonlythecurrentlyeditable
character.
Forthelattertype,numbersgreaterthan9.999(e.g.alarmthresholds)
areenteredasdescribedinthefollowingexample,whichshowshow
toenteravalueof'123.4'.Becausethisdocumentcannoteasilyshow
aflashingcharacterthecurrentlyeditablecharacterisshownunder-
lined.
Notes:（GRAPHTECchartrecorderpaper,JUMO/JUCHEIMchartrecorderpaper,）
1.Theflashing'H'characterindicatesthatthe–signistheeditable
character,andthis–signcanbetoggledonandoffusingtheup/
downarrowkeys.
2.Theunitscharacterisenteredfirst(afterthe+/-sign),thenthedeci-
malpointposition.
3.Tomovethedecimalpointtothe10sor100sposition,thecursor
keyisoperated
a)whentheeditablecharacteristheleastsignificant(right-most)
digit(LSD),AND
b)thisLSDis0.
OperatingthecursorwithanythingotherthanzeroastheLSDfails
toshiftthedecimalpointposition.
HEREarerecorderchartpaper
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