Rosemount 3491, Справочное руководство, Страница: 104 / 152

Reference Manual
00809-0100-4841, Rev. AA
May 2007
Rosemount 3490 Series
4-72
Primary Display Options
The factory default configuration of the primary display can be changed to
show different graphic and text information.
Three areas of the primary display can be re-configured:
•
Upper display
• Middle display
• Lower display
In addition, the number of decimal places and the back light operation can be
adjusted.
Menu: MAIN MENU / SETUP / [CONTROL UNIT /] OUTPUT / DISPLAY
P570 Display Upper (Factory default is "P731-Time")
Select from the multiple-choice list of parameters (see Table 4-16 on
page 4-73). For example, you can display the Totaliser count when
"D828-Totaliser" is selected. If it will fit, the clock time will also be displayed
alongside the selected parameter.
P571 Display Middle (Factory default is "D800-PV")
Select from the multiple-choice list of parameters (see Table 4-16 on
page 4-73). For example, you can display the (3490) SV value when
"D801-SV" is selected.
P572 Display Lower (Factory default is "Bargraph")
(Bargraph represents the 4-20mA output)
Select from the multiple-choice list of parameters (see Table 4-16 on
page 4-73). For example, you can display a user-defined message (P241)
when the 'P241' option is selected.
P573 Decimal places (Factory default is 3)
Use this to adjust the number of decimal places. Range 0 to 5. Alternatively,
select "Disabled" (Auto) for the 3490 Series Control Unit to automatically
choose the number of decimal places for a displayed parameter value.
P574 Display size (Factory default is “Large”)
Use this to adjust whether the Primary Display shows the Large PV Display
after a period of keypad inactivity, or remains showing the Full PV Display.
P575 Back light (Factory default is "On")
Select from "On" (always on), "Off" (always off) or "Auto" (goes on when using
keypad; goes off after 5 minutes of inactivity).