KROHNE MFC 400 EN - Manual (Page 109)

OPERATION
6
109
MFC 400
www.krohne.com 08/2013 - 4002075802 - MA MFC 400 R02 en
M M
Configuration
Backup 1 Data Faulty Error when checking the
data record for Backup 1.
Use "Setup > Device >
Special Functions > Save
Settings" to save the data
record. If the message
continues to appear, contact
the manufacturer.
Backup 2 Data Faulty Error when checking the
data record for Backup 2.
M M Process
F F F F F Proc: Current
Input
IO A Error Current Error current is detected at
current input A.
Check device connected to
current input A. This devices
submits an error current.
IO B Error Current Error current is detected at
current input B.
Check device connected to
current input B. This devices
submits an error current.
S S Electr: IO
Connection
IO A Connection Current output A cannot
provide the necessary
current. The current
provided is too low. The
current at input A is below
0.5 mA or above 23 mA.
Check connection at A.
Measure resistance of
current loop at A.
Check current at A.
IO A Connection Open circuit or short circuit
at IO A.
IO B Connection Current output B cannot
provide the necessary
current. The current
provided is too low. The
current at input B is below
0.5 mA or above 23 mA.
Check connection at B.
Measure resistance of
current loop at B.
Check current at B.
IO B Connection Open circuit or short circuit
at IO B.
IO C Open Connector Current output C cannot
provide the necessary
current.
The current provided is too
low.
Check connection at C.
Measure resistance of
current loop at C.
F F F F F Proc: Signal
Search
Sensor signal search The measuring sensor
signals are too small for an
accurate flow measurement.
The cause is typically too
much damping, e.g. due to
gas bubbles or the viscosity
is too high.
Check process conditions. In
the case of a measuring
sensor in remote version,
check the electrical
connection between the field
housing and the measuring
sensor.
S S Proc: 2 Phase
Flow
2 Phase Flow Detected 2 phase flow has been
detected. The accuracy of
the flow and density
measurement is
undetermined.
Check product for gas
bubbles.
.book Page 109 Monday, August 26, 2013 9:05 AM