KROHNE MFC 010 C Converter - Manual (Page 85)

MFC010 Interface Manual 83
Bit Error Flag Designation
9
CT
Name
: MT Strain Gauge Open Circuit
Cause
: The measurement system has detected an electrical open circuit
between its measuring tube strain gauge input terminals,
therefore strain measurement is not possible. The system will
default to a static strain reading of 1000Ω when this error occurs,
however, internally it will use the calibration reference strain for
measurement calculation to prevent sudden massive variation in
the mass flow or density measurements.
Action :
Call a service support engineer
10
CT
Name
: IC Strain Gauge Short Circuit
Cause
: The measurement system has detected an electrical short circuit
between its inner cylinder strain gauge input terminals, therefore
strain measurement is not possible. The system will default to a
static strain reading of 0Ω when this error occurs, however,
internally it will use the calibration reference strain for
measurement calculation to prevent sudden massive variation in
the mass flow or density measurements.
Action :
Call service support engineer
11
CT
Name
: IC Strain Gauge Open Circuit
Cause
: The measurement system has detected an electrical open circuit
between its inner cylinder strain gauge input terminals, therefore
strain measurement is not possible. The system will default to a
static strain reading of 1000Ω when this error occurs, however,
internally it will use the calibration reference strain for
measurement calculation to prevent sudden massive variation in
the mass flow or density measurements.
Action :
Call service support engineer
12
CT
Name
: Sensor A
Cause
: The measured level of Sensor A is below 5% of the required value.
This error can occur for short periods following rapid changes of product
density, such as when the tube changes to or from an empty state or
when excessive Air bubbles are present in the product.
Action :
If this Error is persistently reported during normal operation call your
service support engineer for further advice.
13
CT
Name
: Sensor B
Cause
: The measured level of Sensor B is below 5% of the required value.
This error can occur for short periods following rapid changes of product
density, such as when the tube changes to or from an empty state or
when excessive Air bubbles are present in the product.
Action :
If this Error is persistently reported during normal operation call your
service support engineer for further advice.
14
CT
Name
: Ratio A/B
Cause
: The ratio of the two sensor signals is too large, i.e. one of the
motion sensors is giving a reading significantly below the other
sufficient to cause an error in the mass flow calculations. This
may be caused by or the cause of instability in the tube oscillation
control system.
Action :
Call service support engineer
15
CT
Name
: DC A
Cause
: The DC component of the motion Sensor A signal is too large.
Action :
Call service support engineer.
16
CT
Name
: DC B
Cause
: The DC component of the motion Sensor B signal is too large.
Action :
Call service support engineer.