Eurotherm Chessell 4102C, Руководство пользователя

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Page 25
HA249928
Issue 15 Jly 06
100 MM CHART RECORDER USER GUIDE
4.3 EVENT INPUT OPTION
This option offers four inputs to control chart on/off and annotation of events. Each event is initiated by a contact
closure (or opening) applied between the 'C' terminal and input terminals one to four.
Note: Alarm message printing is inhibited if the Event Input Option is fitted.
4.3.1 Contact input 1
With the contact closed, the chart runs normally, at its selected chart speed.
When the contact is opened, pens are parked at zero (continuous-trace recorders) or tracing is stopped (multipoint
recorders), the chart winds forward eighty mm. and stops.
Contact input 1 may not be closed if contact input 2 (below) is closed.
4.3.2 Contact input 2
This function applies only to annotating recorders.
At closure, the current time and date is printed on the chart. For as long as the contact is closed, the chart runs at its
selected speed, but annotation of scales, time, date and chart speed is inhibited.
At contact opening, pens are zeroed (contiuous-trace recorders) or tracing is inhibited (multipoint recorders), time,
date, scales and chart speed are printed on the chart, the chart is wound forwards 80 mm. and is then stopped.
Contact input 2 may not be closed if contact input 1 is closed.
4.3.3 Contact input 3
This function applies only to annotating recorders, and is effective only if contact 1 or 2 is closed.
On closure, the message "
EVENT START HH:MM:SS
" is printed at the left-hand side of the chart, where
HH:MM:SS shows the time of closure in hours, minutes and seconds.
On contact opening, the message "
DURATION HH:MM:SS
" is printed at the left edge of the chart, where
HH:MM:SS shows how long the contact has been closed to the nearest second. Should the duration of closure reach
100 hours, the duration re-sets to zero.
4.3.4 Contact input 4
If contact 1 or 2 is closed, then channel four (continuous trace) or channel six (multipoint recorders) is used to show
the status of contact closure 4. Whilst contact 4 is open, the trace is at 100% of chart span; whilst closed, the trace
moves to 96% of span.
If neither contact 1 or 2 is closed, pen four (continuous-trace recorders) moves to chart zero or tracing by channel 6
(multi-point recorders) is stopped.