Deviation Bargraph; Instrument Power-Up - ABB C320 User Manual

1.3.2 Deviation Bargraph – Fig. 1.7
The deviation bargraph displays:
a) The difference between the raw pressure and pasteurized pressure inputs.
b) The deviation alarm trip value
1.4 Instrument Power-up – Fig. 1.8
Caution. Ensure all connections, including the earth stud, are made correctly.
a) Check that the input sensors are installed correctly.
b) Switch on the supply to the instrument, any power-operated control circuits and the input
signals.
c) The start-up sequence shown in Fig. 1.8 is displayed when the supply is first switched on.
Instrument Test identifies the instrument type, C320 – see Table 4.1
100. 3
RAW
PAS
200. 5
Normal Display
Note. Acknowledging error clears the error but does not rectify the fault, check the
configuration.
Difference between raw and pasteurized input
pressures is less than the alarm trip value
Deviation alarm trip value
Difference between raw and pasteurized input
pressures is greater than the alarm trip value
Fig. 1.7 Deviation Bargraph
C320
RAW
PAS tESt
Flashing
A1 A2 BP1 BP2
between
Fig. 1.8 Instrument Displays at Power-up
1 DISPLAYS AND CONTROLS...
A1 A2 BP1 BP2
CONFIG
RAW
PAS
CHECK
A1
C o n f i g u r a t i o n
indicates configuration error,
acknowledged by pressing
the switch.
A2 BP1 BP2
C h e c k
5