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SFIDK.PS.029.Q3.02
51
8. Trouble shooting
Trouble shooting
SITRANS F US SONOFLO
®
®
®
®
®
8.1 Fault location guide
Symptom
Error code
Error relay
Cause
Remedy
Empty display
None
ON
1. Supply voltage
1. Check supply voltage and voltage selector
2. SONO 3000 defective
2. Replace SONO 3000
3
)
No
None
OFF
1. Current output deselected
1. Check OUTPUT SETUP
flow signal
2. Frequency/pulse output
2. Check OUTPUT SETUP
deselected
None
OFF
Reverse flow direction
Select FLOW DIRECTION in BASIC SETTINGS
1
1
)
ON
Signal converter rejects received
2
signals
5
1
)
Max. amplification exceeded
6
9
ON
1. Sensor cable not connected
1. Check cable and connections
10
11
2. Mismatch of sensor and liquid
2. Check sensor manually by means of an oscilloscope.
12
Please contact Siemens Flow Instruments
13
1
)
ON
1. This error code and a high gain
2)
.
14
> 60 dB, indicate reception of a
week signal
2. Air bubbles in the liquid cause
amplitude variations of the flow
signal
17
ON
Internal error
With a typical operation of the signal converter turn
18
Function and communication check
the power supply off and on.
51
If the fault occurs again, replace the signal converter
3
)
68
84
111
121
125
21
OFF
Error during zero adjustment
Ensure optimum zero adjustment in the sensor
3
)
Unit registers flow in sensor
22
ON
Sound velocity value outside the
Check settings for track length and min./max. sound velocity
measuring range
23
Hardware fault
Replace SONO 3000
3
)
24
33
34
25
ON
1. Motherboard defective
1. Replace SONO 3000
3
)
2. Supply voltage too low
2. Check supply voltage
26
ON
Fatal measuring error
Remove the cause of additional error(s) and
Forced output
this code will disappear as well
redefined
in the menu
30
ON
SENSORPROM
®
unit defective
Remove SENSORPROM
®
unit and enter settings manually
3
)
31
40
Wrong sensor version
41
ON
Error in data exchange with
SENSORPROM
®
unit
50
ON
Invalid totalizer value
(check sum error)
60
ON
1. No load or load exceeds max.
1. Check cables and connections
setting on current output
2. SONO 3000 defective
2. Replace SONO 3000
3
)
27
ON
Flow > 2 x Q
max.
Check max. setting in BASIC SETTINGS
64
ON
Current output exceeds 24 mA
Check max. setting in BASIC SETTINGS
80
ON
Frequency/pulse output
Check max. setting in BASIC SETTINGS
exceeds 12000 Hz
82
ON
Pulse width on frequency output
Select a shorter pulse width
exceeds limit by 50%
100
OFF
“Power-on” indication - no error
1
) Lowest value for track 1.
2
) Alarm if signal level falls below 500 mV (see "Service").
3
) Not permitted with calibrated and sealed flowmeters.
Please contact Siemens Flow Instruments or send the signal converter and sensor to Siemens Flow Instruments for repair and renewed
calibration.