53
Troubleshooting
9. Troubleshooting
SFIDK.PS.029.V3.02 -
521H0553
SITRANS F US SONOFLO
®
®
®
®
®
Troubleshooting
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
No flow
OFF
1. Current output deselected
1. OUTPUT SETUP in the menu
signal
2. Frequency/pulse output deselected
2. OUTPUT SETUP in the menu
None
OFF
Reverse flow direction
Select direction definition (BASIC SETTINGS)
1
1
)
ON
The converter rejects the received
2
signals
3
4
5
1
)
5
)
Max. amplification exceeded
6
(> 60 db)
7
8
9
1
)
ON
1. Sensor cable not connected
1. Check cable connections
10
11
2. Mismatch of tranducer and liquid
2. Check transducers manually by means of an oscilloscope.
12
Please contact Siemens Flow Instruments
13
1
)
ON
1. This error code and a high gain
14
(> 60 dB) indicates a too weak
15
received signal.
16
(Alarm if signal level gets below
500 mV). See SERVICE MENU
2. Unstable flow signal caused by gas
bubbles in the liquid.
17
ON
Internal error
Switch off the power supply shortly to reset the signal converter.
18
Function and
If the fault is consistent, replace the converter
19
communication check
20
51
110
111
121
125
126
68
69
70
84
85
21
OFF
Error during zero adjustment.
Ensure zero flow condition in the pipe
The meter detects flow in the pipe.
22
ON
Actual sound velocity outside the
Check the setting of track length and min. and max. sound velocity
measuring range.
23
Hardware fault
SONO 3000 defective
24
Replace the signal converter
33
34
25
ON
1. Defective power supply
1. Replace SONO 3000
2. Supply voltage too low
2. Check supply voltage
No flow
26
Force output
Fatal measuring error
Usually appearing with other codes. Remove the cause of error
signal
as defined in
until the code disappears.
FORCED
CONTROL
27
Error due to volume flow
Increase Q
max.
in the menu.
exceeding Q
max.
30
ON
SENSORPROM
®
unit defective
Remove the SENSORPROM
®
unit. Enter settings manually.
31
40
Wrong sensor version
41
ON
Error in data exchange with
Restart the converter
SENSORPROM
®
unit
42
4
)
OFF
No SENSORPROM
®
unit
50
ON
Value of internal totalizer not valid
(Check sum error)
60
2
)
ON
1. No load or load exceeds
1. Check cables and connections
61
specifications of the current output
62
2. SONO 3000 defective
2. Replace the signal converter
64
2
)
ON
Current output
Check max. settings in BASIC SETTINGS
65
exceeds 24 mA
66
80
2
)
ON
Frequency output
Check max. settings in BASIC SETTINGS
81
exceeds 12500 Hz
82
3
)
ON
Pulse width on frequency output
Select a shorter pulse width
83
exceeds 50% of duty cycle
100
4
)
OFF
"Power on" indication.
This is not an error.
1)
Lowest number: track 1
4)
No error
2)
Lowest number: current output no. 1
5)
Lowest number: transducer A
3)
Lowest number: frequency/pulse
output no. 1