26
4.2. Troubleshooting
4.2.1. List of possible faults, failures and alarm situations detected by the flow
meter and displayed on the LCD with "
X
" character in the
"
ERR = - - - - - -
" line is given in Table 5. A sign-position code is read
from
right
to
left
.
Table 5
Sign position number
Explanation
1
Hardware failure
2
Low battery voltage
3
USS not detected
4
Current flowrate value exceeds maximum
5
The current flow rate is above the upper threshold
6
The current flow rate is above the lower threshold
4.2.2. The same information can be read via the communication interface from
the
Status
tab of the "Viewer BUF-311" program (see section 4.1.5).
4.2.3. If "
X
" symbol is displayed in position 1, the flow meter shall be forwarded
to the manufacturer for repair.
If "
X
" symbol is displayed in position 2, battery replacement is
required.
4.2.4. If "
X
" is displayed in other positions and/or in case of no pulses at Uni-
versal output, check the following:
- Liquid is present and running through the pipeline
- Air is not collected in the flow meter
’s location
- Threshold values for the "
Output conversion factor
" and "
Pulse
weight
" as well as for the "
Lower limit by flowrate
" and "
Up. limit by
flowrate
" parameters are set correctly. Change the values, if neces-
sary.
If all the requirements listed above are met contact the service
centre (regional dealer) or manufacturer for the information about the
device’s operability.
