164
Error Messages of Unical 9000(X)
NAMUR
class
Protos contacts
DCS34
Message (PROTOS)
Cause
System reaction
Reset
Remark
Fct.chk
Failure
Maint req.
Alarm
FAIL
active
Sensor dismounted
(U221)
– Sensor dismounted
– Probe cylinder untight
– Probe lines untight
– Dismount guard defective
Probe does not
move into MEAS
position,
Message
- When sensor has been
remounted
Message can only
appear in SERVICE
position
Sensor can only be
removed in SERVICE
position
FAIL
active
active
Undefined security status
(U222)
– Voltage interruption while
SERVICE switch is activated
Red LED at service
switch is lit
- Switch SERVICE switch
on/off
Caution! Probe moves
into the process
The system could not
unequivocally deter-
mine whether a safe sta-
tus has been achieved
MAINT REQ.
active
Safety valve defective
(U235)
– Safety valve does not close * None, message
only
Redundancy of pilot
valves not provided
any more. Can only be
noticed with “SERVICE
switch“ function
MAINT REQ.
active
Sensor dismount guard
defective
(U229)
– Flow sensor defective
– Air leak in probe cylinder
– Probe lines untight
None, message
only
- Replace flow sensor or
eliminate other cause
of defect
MAINT REQ.
active
Buffer almost empty
Err text from medium
description
(U190/U191)
– Filling level below
minimum
– Float switch stuck
– Check-back error
(line interrupted
or short-circuited)
– Bottle untight
None, message
only
Automatic when buffer
solution is topped up
above min. level
Start immediately when
intervals have expired
FAIL
active
active
Buffer empty
Err text from medium
description
(U194/U195)
– Residual bottle contents
used up
– Float switch stuck
– Check-back error
(line interrupted
or short-circuited)
All programs
requiring buf-
fer solution are
blocked
Automatic when buffer
solution is topped up
above min. level
Start immediately when
intervals have expired
MAINT REQ.
active
Cleaner almost empty
Err text from medium
description
(U192)
– Filling level below
minimum
– Float switch stuck
– Check-back error
(line interrupted
or short-circuited)
– Bottle untight
None, message
only
Automatic when clean-
ing solution is topped up
above min. level
Start immediately when
intervals have expired
FAIL
active
active
Cleaner empty
Err text from medium
description
(U196)
– Residual bottle contents
used up
– Float switch stuck
– Check-back error
(line interrupted
or short-circuited)
All programs
requiring clean-
ing solution are
blocked
Automatic when cleaning
solution is topped up
Start immediately when
intervals have expired
Summary of Contents for Protos 3400
Page 12: ...12 ...
Page 160: ...160 ...
Page 177: ...177 Appendix Buffer Table Mettler Toledo ...
Page 179: ...179 Appendix Buffer Table DIN 19267 ...
Page 181: ...181 Appendix Buffer Table Techn Buffers to NIST ...
Page 182: ...182 Appendix Buffer Table Hamilton ...
Page 183: ...183 Appendix Buffer Table Kraft ...
Page 184: ...184 Appendix Buffer Table Hamilton A ...
Page 185: ...185 Appendix Buffer Table Hamilton B ...
Page 186: ...186 Appendix Buffer Table HACH ...
Page 206: ...206 Index ...
Page 207: ...207 Index ...