RIA452 Operation
Endress+Hauser 17
5.2 Display and operating elements
5.2.1 Display
Relay display
No power to relay: no display
Power to relay: (symbol lit)
Remove the protective strip from the display as this restricts display legibility
otherwise.
Range Display Relay Analog output Integration
Input current is
below the lower
error limit
Display " " Fault condition Set failsafe mode No integration
Input current above
lower error limit
and below lower
limitations of
validity
Display " " Normal limit value
behavior
Normal behavior
with max. 10%
overrange. No
output <0mA/0V
possible
Normal behavior
(negative
integration not
possible)
Input current in
valid range
Display scaled
measured value
Normal limit value
behavior
Normal behavior
with max. 10%
overrange. No
output <0mA/0V
possible
Normal behavior
(negative
integration not
possible)
Input current below
upper error limit
and above upper
limitations of
validity
Display " " Normal limit value
behavior
Normal behavior
with max. 10%
overrange. No
output <0mA
possible.
Normal behavior
(negative
integration not
possible)
Input current above
upper error limit
Display " " Fault condition Set failsafe mode No integration