Campbell DataView II, Руководство по эксплуатации продукта

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DataView II (CD295) Dual Line Display
2
To use the new capabilities, both the CD295 operating system (OS) and
PC295W software needs to be upgraded to Version 2. Refer to Section 4.2.1.4 ,
Upgrading the Operating System (OS)
(p. 15)
, to upgrade the CD295 OS. To
upgrade PC295W , uninstall previous software versions and then follow the
procedure provided in Section 3.2 ,
Software Installation
(p. 3)
.
1.2 Normal Operation Overview
Below is a general description of normal operation of the DataView II
(CD295).
When first powered up, the DataView II displays the following greeting,
Campbell
Scientific
and the backlight will be lit.
After a program has been successfully downloaded, the CD295 is configured
and connected to the data logger; it is ready for general use. Pressing one of the
buttons on the CD295 will cause the LCD to display something like the
example below.
Temperature
1.234 deg C
The top line contains a string referred to as the “Description”, and the second
line contains both the value retrieved from a Public Variable in the data logger
and a string referred to as “Units”. The value displayed on the second line can
be displayed with a user-selectable number of decimal places.
Together, the combination of “Description”, Public Variable, “Units” and
number of decimal places, is referred to as a “screen”. The CD295 is capable of
holding and displaying up to 30 “screens”. There are no limitations on the
order of screens, or which Public Variables are displayed. Pressing the buttons
on the front panel of the DataView II will cause the next (or previous) screen to
be displayed.
The CD295 will attempt to collect a new value from the data logger under the
following conditions:
• The user has changed “screen”
•
The scan interval of the data logger has expired
After some time (default 10 secs), the backlight will turn off, however the text
will remain visible until the unit enters sleep mode (default 120 secs).
Whenever one of the buttons on the front panel is pressed, these two timers
(Backlight timer and Power Down timer) are both reset. As a result, the
DataView II can be woken from sleep mode by pressing either of the buttons.
Description
Value
Units