儀器儀表配置内容

  仪器信息网 ·  2012-12-26 09:57  ·  49150 次点击
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
相关新闻

0 条回复

暂无讨论,说说你的看法吧!

 回复

你需要  登录  或  注册  后参与讨论!