Hach-Lange EVITA OXY User Manual - Manual (Page 40)

38
In the “service mode” it is possible to control the
relay and the current outputs directly. This may be
useful when e.g. a control loop is to be adjusted or if
an alarm signal should be checked.
Service
mode
USC
I Out 2
USC
I Out 3
USC
I Out 4
USC
Relay 1
USC
Relay 2
USC
Relay 3
USC
Relay 4
USC
Relay 5
USC
Digital input
High
USC
(High/Low)
Mode
Normal
I OUT 1
Normal
Forced Forced value
00.0 mA
I OUT 1
00.0-24.0 mA
Mode
Normal
RELAY 1
Normal
Open
Closed
Event log
USC
Log xxxxdxxh
xxxxxxxxxxxxxxxx
USC
I Out 1
USC
081R9406.02.02
HART comm. error
0856 0007 001% 00
USC
Fig. 49
Forced current and relay outputs
Service mode
The quality of the HART ® communication is
displayed in the “HART comm. error” submenu.
The quality is shown as:
VVVV XXXX YYY % ZZ
where
VVVV is the number of received messages
without any errors,
XXXX is the number of received messages
with errors,
YYY % is the percentage of messages that
had errors
ZZ is the number of messages that were
eliminated, i.e. max. number of retries
was reached.