167
NAMUR
class
Protos contacts
DCS34
Message (PROTOS)
Cause
System reaction
Reset
Remark
Fct.chk
Failure
Maint req.
Alarm
MAINT REQ.
active
UNICAL Switch Water pressure
(U220)
– No water
– Water pressure too low
All programs
requiring water
are blocked
Automatic as soon as
water pressure OK
Start immediately when
intervals have expired
MAINT REQ.
active
Probe cylinder untight
(U228)
– Probe cylinder untight
– Probe lines untight
None, message
only
Automatic as soon as
cause of trouble removed
Probe cylinder or probe
lines untight
Maintenance required
MAINT REQ.
active
Proble check counter /
Proble maintenance counter
(U249 / U250)
– Counter expired
None, message
only
Manual reset in
maintenance menu
MAINT REQ.
active
Media monitoring
Err texts from medium
description
(U241 ... U246)
– Wrong medium
– Wrong medium temp.
– Media mixed
– System untight
– Probe untight
None, message
only
Automatic as soon as
medium OK
MAINT REQ.
active
active
UNICAL Calibration error
(U251)
– Buffers interchanged
– Identical buffers
– Buffer unknown
– Cal temp
– Sensor unstable
– Zero too low/high
– Slope too low/high
Calibration
aborted
Automatically after next
fault-free calibration
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 ...