The combo box, a combination of a text box with an added drop-
down list from which you can choose the units to express your value.
Set ting fields dis play dark (black or blue) text or num bers on
a white field. 2700 se ries text boxes and combo boxes,
where ap pro pri ate, will ac cept cer tain let ters as short hand for
stan dard SI multipliers: “n” for nano- (10
–9
), “u” for µ or mi cro-
(10
–6
), “m” for milli- (10
–3
), “k” for kilo- (10
3
) and “M” for
mega- (10
6
). For ex am ple, entering ei ther “1001” and
“1.001k” in a fre quency field will set the fre quency to
1.001 kHz.
§
Check boxes, which al low you to set non-ex clu sive con di tions.
§
Op tion but tons, which pro vide for ex clu sive con di tions.
§
Browser but tons, which open di a log boxes called brows ers, which al low
you to nav i gate lists of op tions, search for a file by brows ing through a
hi er ar chy of fold ers, and so on. Browser but tons are iden ti fied by the
ellipses mark ( … ).
§
Cus tom but tons that con trol spe cial func tions, such as GO, ON, OFF
and so on.
§
Sliders, with which you can con tin u ously ad just a value. Sliders are
found on Bar Graph pan els. Sliders can be op er ated by ei ther the mouse
pointer or by us ing the ar row keys.
Panel Readings
Re sults of tests or mea sure ments are called read ings, which the 2700 se ries
con trol soft ware can dis play in sev eral ways:
§
Read ing fields, some times called mea sure ment fields or me ters. Read ing
fields come in two vari a tions, with and with out a drop-down list to se lect
units.
Read ing fields al ways dis play green text or num bers on a
black field.
§
Bar graphs, which dis play val ues as a con tin u ous col ored bar, like a con -
ven tional an a log me ter.
§
Sta tus in di ca tors, which show the pres ence or ab sence of a con di tion by
a small col ored rect an gle.
Chapter 4: 2700 Series Control Software The 2700 series panels
24 Getting Started with Your 2700 Series Instrument
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