SITRANS F C MASSFLO
26
SFIDK.PS.028.Q1.02
Symptom Output Error Cause Remedy
signals code
Empty display Minimum 1. Supply voltage 1. Check supply voltage
2. MASS 6000 defective 2. Replace MASS 6000
No flow signal Minimum 1. Current output deselected 1. Activate current output
2. Digital output deselected 2. Activate digital output
3. Reverse flow direction 3. Change direction
W31 Measuring pipe empty Ensure that the measuring
pipe is full
F60 Internal error Replace MASS 6000
Undefined P42 1. No load on current output 1. Check cables/connections
2. MASS 6000 defective 2. Replace MASS 6000
P41 Initializing error Switch off MASS 6000,
wait 5 s and switch on again
Indicates flow Undefined Measuring pipe empty Select empty pipe limit
with no flow Ensure that the measuring
in pipe pipe is full of liquid
Unstable Unstable 1. Pulsating flow 1. Increase time constant
flow signal
2. Air bubbles in medium 2. Ensure medium does not
contain air bubbles
3. Vibrations 3. Ensure that the sensor is
mounted on a rigid frame
without vibrations
4. Pump noise 4. Ensure that pump frequency
is different from resonance
frequency of sensor
Measuring error Undefined Faulty zero-point Make new zero-point
adjustment
P40 No SENSORPROM
unit Install SENSORPROM
unit
F61 Deficient SENSORPROM
Replace SENSORPROM
unit
unit
F62 Wrong SENSORPROM
Replace SENSORPROM
unit
unit
F63 Defective SENSORPROM
Replace SENSORPROM
unit
unit
F80-83 Loss of internal data Replace MASS 6000
Maximum W30 Flow exceeds 120% of Q
max.
Check Q
max.
(Basic Settings)
W21 Pulse overflow
• Mass/pulse too small Change mass/pulse
• Pulse width too large Change pulse width
Loss of totalizer OK W20 Initializing error Reset totalizer manually
data
6. Service
6.2 Trouble shooting
MASS 6000
Replacement MASS 6000 or SENSORPROM
unit
Disconnect the equipment from the supply curciuts and wait 30 minuts for discharging the
energy in the internal electronic as before opening.
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