
HA250385
Issue 2 Mar 98
Section 2
Page 2 - 2
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 2 BASIC OPERATION
This section is designed to help you as a new user to understand the display and key operations. After the display and
key descriptions, an example configuration is given to show you how to set up an input channel to a known set of
parameters, so you can start recording your own traces with the minimum of effort. Only those items which are nec-
essary to get you going are explained; for full information about the Operator and Configuration display see sections
3 and 4 respectively.
2.1 POWER UP
At power up, a power-on message can be printed on the chart giving any of: time, date, and chart speed. Which (if
any) of these is required is set up in Chart Configuration (section 4.4) For example:-
09:15 29/02/96 12 Hour Chart
or
29/02/96 7 Day Chart
See sections 3.7 and 3.8 if a system error is indicated.
2.2 BACKGROUND DISPLAY
After initialization is complete, the display enters what is called a 'background' display, showing the value of a
channel in a format similar to that shown below. If this is the first switch-on, or if the recorder has not been
configured, the channel will be OFF.
Initially, the first channel on display is measuring channel 1. This remains on display for 5 seconds, after which
channel 2 appears. Channels 'scroll' in this manner until all input channels have been displayed, after which, if the
display group has been edited to include them (section 4.6.3) any option channels (derived variables, totalisers and
counters) will be scrolled through in the same manner. When all channels have been scrolled-through, input channel
1 is returned to.
01 1.2345 Units
(Measuring channel)
D01 1.2345 Units
(Derived (maths) channel)
T1 123456789 Units
(Totaliser)
C1 12345678 Units
(Counter)
By operating the page up/down keys, the display can be made to show alarm types or the channel identifier (tag)
instead of its current value. When either of these alternative displays are selected, the relevant channel is held (i.e.
the normal scrolling process is stopped).
01 586.03 Deg C
Furnace 1 temp A
Alarms: 1
1
2
3
Alarm 1 on channel 1 and alarm
3 on channel 2 are active. For
details about alarms in general,
see section 4.5.2