Error Handling - Onicon Vortex Flow Meter F-2200 Series Installation And Operation Manual

4.4 ERROR HANDLING

The meter can detect errors in either the test or the measurement modes. When in the measurement
mode, a blinking vertical bar will appear in the top left corner of the display indicating an error has
been detected. If the error reporting function is enabled, error messages will be displayed as separate
menu pages. The fi rst line of the error menu page indicates the total number of errors and the second
line displays the error message. Measurement mode error messages are listed below.
Error Message
(display second line)
NO SIGNAL
LOW FREQ.
HIGH FREQ.
LOW FLOW
HIGH FLOW
INV. CONFIG.
ISO FAIL Checked
AMP FAIL
PIEZO FAIL
CHECK INST
LOW SIGNAL
HIGH SIGNAL
LOW.TEMP.PHY.
HIGH.TEMP.PHY.
T.SENS.SHORT
T.SENS.OPEN
F-2200 Series Vortex Flow Meter Installation and Operation Guide • Revised 12/08
Type Description
No signal from the vortex
sensor
Vortex frequency is too low
Vortex frequency is too high
Flow rate lower than speci-
fi ed range
Actual fl ow rate higher than
specifi ed range
Confi guration data in non-
volatile memory is not valid
Sensor isolation has failed
during
Pre-amplifi er section has
power-
failed
on only
Piezo wires broken
Flow signal quality is bad
Vortex signal amplitude too
low
Vortex sensor signal
amplitude too high
Operating temperature is
lower than the physical limit
Operating temperature is
higher than the physical limit
Temperature sensor/wires
short circuit
Temperature sensor open
circuit
Corrective Action
No fl ow. Also check for any other errors dur-
ing power-on diagnostics. If there is a sensor
problem, contact ONICON.
Check for fl ow rate lower than specifi ed mini-
mum. Contact ONICON.
Check for fl ow rate higher than specifi ed maxi-
mum. Contact ONICON.
Converter will continue to display actual fl ow
rate. However, accuracy of measurement may
suffer.
Corrective action depends on application pro-
cess. If the fl ow rate exceeds the maximum
value it may damage the sensor physically.
Contact ONICON.
Contact ONICON.
Contact ONICON.
Contact ONICON.
Check: 1) Flow rate, if OK; 2) Check for
excessive pipe vibration and upstream fl ow
disturbances; 3) Contact ONICON.
Check: 1) Flow rate, if OK; 2) Contact ONI-
CON.
This occurs in cases of high density medium.
Check 1) Flow rate, if OK 2) Contact ONI-
CON.
Take corrective action depending on the pro-
cess.
Take corrective action immediately. This will
cause damage to the shedder bar as well as
to the electronics.
Indicates a fault in the temperature sensor.
Contact ONICON.
20
Required