Section 3
Page 3 - 24
MODEL 346 INSTALLATION AND OPERATION MANUAL
HA243820
Issue 5 Mar 98
3.5 CHART PRINTING (Cont.)
Figure 3.5.1
Channel scale, channel descriptor and time-of-day print example (channels 1 and 2 only)
3.5.2 ALARM MESSAGE PRINTING
Alarm messages are printed once when the relevant alarm becomes active (ON) and again when the alarm
condition is no longer present (OFF). The symbol printed before the words “On” and “Off” indicates the alarm
type. Examples of alarm messages are:
P 4:45 13 JAN 89 A11 FEED TEMP HIGH ^Off
P 4:40 13 JAN 89 A11 FEED TEMP HIGH ^On
indicating that alarm1 (absolute high) of channel 1 became active at 4:40 in the afternoon of the 13th January
1989 and remained in alarm for five minutes.
Alarm messages will not print during a log. If alarms occur so frequently that they cannot be printed, the Mes-
sages are saved and printed as quickly as is permitted by the current print mode. Unprinted Alarm Messages
may be cancelled by using the Alarm Message Cancel item in the operator menu.
Note...
If a particular alarm toggles on and off so rapidly that the message printing cannot keep up, then at least the
first ‘alarm on’ and the last ‘alarm off’ message will be printed; Messages in between may be lost.
CH 1 REACTOR PRESSURE PSIG
0 500 1000
P 1:00_
CH 2 FEEDWATER TEMP DEG F
0 50 100
5 cm
5 cm
5 cm
5 cm
Channel 2 scale
and descriptor
Channel 1 scale
and descriptor
Header line
Time mark
ID346 B123456 100MM/HR 1 JAN90 P12:00_
Note...
Text height exaggerated for clarity
Time mark