SICK PAC50 Notice D'instruction page 73

Operating Instructions
4.3.4 Changing the parameters in LT mode
The sensor is in measurement standby (see 4.3.2), the information shown on the display appears in green
and the measurement is either started manually using the
ing input. The current measured value is always shown in the top part of the display. The following scenarios
may occur during the measurement:
4.3.4.1 System supply pressure p
After the measurement starts, the sensor switches directly to an error mode if p
greater than the upper threshold p
current measured value, and "p<p
in the bottom line.
The message must be acknowledged by pressing
4.3.4.2 Supply pressure p
Timer A starts once the measurement does. The upper threshold p
reached. During the measurement, "TimA" appears in the top status line together with the corresponding time
value in seconds, and "P>P
The measurement stops once the time value for t
to indicate that the measurement has been completed. In the bottom status line, the values for dP (pressure
difference between p
0
and the value for QL (absolute value if a volume has been specified or "- - - -QL" if vol = 0 has been retained)
appear alternately.
The message must be acknowledged by pressing
8017612/14NK / 8/2/2019 | PAC50
Subject to change without notice
< (pressure) threshold p
0
. The display turns red. In the display, "WARN" appears underneath the
1
" and the value for p
1
> p and t reached before undershooting of p
0 1 out
" appears in the bottom status line together with the value for P1, e.g., "0.60".
1
and the current pressure upon reaching t
Product description
pushbutton or via the PLC using Q1 as a switch-
or p
1 2
(e.g., "0.60") or "p<p
1
in order to set the sensor back to measurement standby.
is not reached by the time tout is
1
has been reached. "DONE" appears in the top status line
out
), dT (corresponds to tout in this case)
out
in order to set the sensor back to measurement standby.
is not at least 0.02 bar
0
" and the value for p
2
1
O p e r a t i n g I n s t r u c t i o n s | S I C K
PAC50
appear
2
7 3