Troubleshooting
Proline Promass 80
60
Hauser
9.3
Process error messages
Process errors can be defined as either "Fault" or "Notice" messages and can thereby be weighted
differently. This is specified via the function matrix
(
"Description of Device Functions" manual).
!
Note!
• The listed error message types below correspond to the factory setting.
• See the information on
No.
Error message / Type
Cause
Remedy (spare part
63)
P = Process error
$
= Fault message (with an effect on the inputs and outputs)
! = Notice message (without an effect on the inputs and outputs)
586
P: OSC. AMP. LIM.
$
: # 586
The fluid properties do not allow a continuation of the
measurement.
Causes:
– Extremely high viscosity
– Process fluid is very inhomogeneous (gas or solid
content)
Change or improve process conditions.
587
P: TUBE NOT OSC
$
: # 587
Extreme process conditions exist. The measuring system
can therefore not be started.
Change or improve process conditions.
588
P: NOISE LIMIT
$
: # 588
Overdriving of the internal analog to digital converter.
Causes:
– Cavitation
– Extreme pressure pulses
– High gas flow velocity
A continuation of the measurement is no longer possible!
Change or improve process conditions, e.g. by reducing the flow
velocity.
No. # 7xx
Other process errors)
700
P: EMPTY PIPE
!: # 700
The process fluid density is outside the upper or lower
limit values set in the EPD function
Causes:
– Air in the measuring tube
– Partly filled measuring tube
1.
Ensure that there is no gas content in the process liquid.
2.
Adapt the values in the EPD function to the current process
conditions.
701
P: EXC. CURR. LIM.
!: # 701
The maximum current value for the measuring tube
exciter coils has been reached, since certain process fluid
characteristics are extreme, e.g. high gas or solid
content.
The instrument continues to work correctly.
In particular with outgassing fluids and/or increased gas content,
the following measures are recommended to increase system
pressure:
1.
Install the instrument at the outlet side of a pump.
2.
Install the instrument at the lowest point of an ascending
pipeline.
3.
Install a flow restriction, e.g. reducer or orifice plate,
downstream from the instrument.
702
P: FLUID INHOM.
!: # 702
Frequency control is not stable, due to inhomogeneous
process fluid, e.g. gas or solid content.
703
P: NOISE LIMIT CH0
!: # 703
Overdriving of the internal analog to digital converter.
Causes:
– Cavitation
– Extreme pressure pulses
– High gas flow velocity
A continuation of the measurement is still possible!
Change or improve process conditions, e.g. by reducing the flow
velocity.
704
P: NOISE LIMIT CH1
!: # 704
705
P: FLOW LIMIT
$
: # 705
The mass flow is too high. The electronics' measuring
range will be exceeded.
Reduce flow
731
P: ABJ. ZERO FAIL
!: # 731
The zero point adjustment is not possible or has been
canceled.
Make sure that zero point adjustment is carried out at "zero flow"
only (v = 0 m/s)
