Alarm mode
To indicate an error, an error code is transmitted with the measured value.
The bar graph in the display adopts the value selected by the operator.
For the "Alarm mode" (V0H8) = "Max. alarm" setting, the current is adjustable from
21…22.5 mA using the "Max. alarm current" (V9H4) parameter (Factory setting: 22 mA).
#
Matrix Path through the
menus
Entry
Main group: Basic settings
1
Select response on error
V0H8
➤
Alarm mode
e.g.
Max. alarm
Confirm
Main group: Service
2
Enter current "Max. alarm" value
V9H4
➤
Max. alarm
current
z.B. 22 mA
Confirm
5.2 Locking/unlocking operation
After calibrating or entering all parameters, operation can then be locked.
•
via the keys +Z and –S or
•
via the matrix by entering a three-character code number
≠
130 in V9H9
(130 is the code for unlocking the measuring point).
This protects the measuring point against unwanted and unauthorised changes to
parameters entered.
Keys
#
Key
Entry
1
Locking operation:
Press +Z and –S simultaneously once
2
Unlocking operation:
Press +S and –Z simultaneously once
Matrix
#
Matrix Path through the
menus
Entry
Main group: Service
1
Locking operation (blocking)
V9H9
➤
Locking
e.g. 131 (
≠
130)
Confirm
2
Unlocking operation (releasing)
V9H9
➤
Unlocking
130
Confirm
The table summarises the locking function:
– –
+
Z
S
+
– –
+ +
Z
S
– –
+
Z
S
– –
+
Z
S
+
+
BA187Y48
Locking:
Press" +Z" and "–S"
simultaneously
Unlocking:
Press "–Z" and "+S"
simultaneously
Locking with keys has priority
Locking via
Displaying/
reading
parameters
Changing/writing via
Unlocking via
Keys
Communication
Keys
Communication
Keys
yes
no
no
yes
no
Matrix
yes
no
no
yes
yes
t
I
max.
min.
BA187Y73
Error
Max. alarm,
Max. current adjustable,
range 21...22.5 mA
Value hold
Min. alarm = 3.6 mA
5 Pressure Measurement
Cerabar S
24
Hauser
