BERTHOLD TECHNOLOGIES LB 480, User Manual

Page: 329 / 450

SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
3 – 329
Volume 3 Menu Structure
3
2.16
Signal Parameter
Menu path: Device Config

Setup

Signal Condition

Signal
Parameter .
1 Time Constant
The time constant smoothes the output signal. Statistical fluctua-
tions, as well as level fluctuations due to the process, e.g. by agita-
tors, are smoothed. A time constant of 20 s is usually reasonable.
2 Error Handling
Displays the current state NORMAL , or SENSITIVE set under Set
Error Handling .
3 Set Error Handling
Here you can set a different weighting of errors and error handling:
• SENSITIVE
All faults cause the current output to report a Fault current . To
also get warning messages, you must also evaluate the mes-
sages via the HART
®
signal or the digital output.
The setting SENSITIVE is automatically enabled when the
Safety Mode is selected.
• NORMAL
Only fatal errors are reported as a fault current. Thus, the mea-
sured value via the current signal will fail only if the measure-
ment can no longer be used.
To also get minor error and warning messages, you must also
evaluate the messages via the HART
®
signal or the digital out-
put.
IMPORTANT
You may select the NORMAL setting only if hazards to persons or
the environment or damage to property as a result of a faulty mea-
sured value can be ruled out.
To use the digital output for the above mentioned messages, you
need to use the setting
W ERROR in the menu Digital
Out Function ( Device Config

Setup

I/O Setup

Digital
Output

Digital Out Function , page 3-357 ).
Tip
Error handling is described in detail in chapter 8 starting on page 3-
429 .