100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 14
3 PROCESS VARIABLE DISPLAY
The operator interface consists of a touch-sensitive screen, showing either process variable values in one
of a number of formats, or, showing confi guration or operational details for use in setting up the recorder.
This section (3) describes the process variable displays.
Section 4
describes the Confi guration displays.
Figure 3, below, depicts a typical trend display for a large-frame unit and gives details of the various
areas of the display page. The small frame display is similar, but the navigation keys are printed on a strip
below the chart area instead of being drawn on the screen.
Notes:
1. Dialogue boxes, message boxes etc. cause Process Variable displays to ‘freeze’ for as long as
the box is on display. Root and Option menus (amongst others) time-out (i.e. are removed from
the display) after approximately one minute. Messages, however, are displayed until the opera-
tor takes action to remove them. It should be noted, especially, that several message boxes
may be active at one time, but only the oldest one is visible, until it is removed to reveal the
‘next oldest’ message, and so on.
2. Many of the screen components can be customised as to colour/size etc. as described in
sec-
tion 4.6.10
(Customise).
TRUNCATION OF NUMERIC VALUES
If the amount of space on the display page is insuffi cient to display the full width of the process variable
or scale value, then the displayed value is rounded down and the number of decimal places reduced. If
the width is still too restricted, the value is displayed in ‘scientifi c’ format, or if this is still too wide, the fi nal
visible character of the integer part of the value is replaced by a ‘?’ (as depicted in
fi gure 3.4.4b
)
Figure 3 Trend display defi nitions (large frame unit)
Channel 1
0.00
73.98V
100.00
20.00
60.00
80.00
40.00
Channel value
99%
Group name
No Batch in Progress
11:52:04
28/01/04
11:49:24
28/05/05
11:46:44
28/05/05
28/05/05 11:47:51 Alarms(s) on 3(1)
28/05/05 11:51:33 Alarms(s) off 3(1)
Instrument alarm
Channel alarm
Change battery alarm
Time and date
Scale (Current) trace
(Diamond icon)
Other traces
(Pen icon)
Channel scale
Time/date stamp
Off channel(s)
Logged out
Current access level or
user name
Status bar
Page Name and batch status
(if option fitted)
FTP activity indicator
Current trace alarm
icons
Channel 3 alarm 1 on
time and date
Channel 3 alarm 1 off
time and date
An animated bar appears
over the date, when the
recorder is busy.
Though normally pale
blue, the bar is gold-
coloured when the
recorder configuration is
being updated remotely
via Bridge software.
Alarm threshold marker
(absolute high)
Configuration locked indicator
Navigation keys
Disk icon
(% free space)
Channel descriptor
11:48:04
28/05/05
11:50:44
28/05/05
11:45:24
28/05/05
