Maintenance
6-5
SITRANS FM Intermag 2 Flow Transmitter
Operating Manual - A5E00102775-03
Error
Diagnosis
Remedy
Measuring deviations,
Inlet and outlet lines insufficient
Change installation (see section 3.2.2)
g
,
measuring errors
Highly turbulent flow profile
Change inlet line, use flow rectifier, reduce
diameter of tube
For mass measurement: medium
density set incorrectly
Correct density according to current medium
(menu
3.1.4
)
Hydraulic calibration values faulty
Check hydraulic calibration values CFH and
ZPH. According to the sensor rating plate and
correct if necessary
(menus
6.7.2
and
6.7.3
).
Electric calibration faulty
Run self-test (menu
2.4.1
);
Check device status (menu
2.1
):
of ”Calibration failure measuring module”
is displayed, send in the complete electronics
for repair
Application-dependent
calibration values faulty
Reset zero point correction (menu
6.6.1
) to 0
and/or reset calibration factor (menu
6.7.1
)
to 1.0.
Alternatively: Make zero correction
(menu
6.6.2
) and manual adaptation of the
calibration factor (menu
6.7.1
)
Measured value too low at
Set attenuation too high
Reduce filter time constant (menu
3.1.7.1
)
dosing
Fault blanking activated
Deactivate noise suppression (menu
3.1.7.3
)
Magnetic field frequency too low
Device may not be suitable for this application
Measured value too low in
pulsed flow
Temporary exceeding of internal
working range
Increase URV (menu
3.1.2
)
p
Unfavorable hydraulic conditions
Install sensor on the suction side of the
corresponding pump or in front of the feeding
valve
Output current does not
correspond to the current
flow and remains at a
There is a fault, failure signal 3.6,
22 or 24 mA is output (depending
on the setting under menu
4.1.2
)
Determine source of fault under device status
(menu 2.1) (see section
5.3.2
)
flow and remains at a
constant value
Load too high
Reduce total load including the cable
resistance to < 600
Ω
Current output or power supply
defective
Replace complete electronics
Communication via HART
not possible
Minimum load of 230
Ω
not
available
Increase load to at least 230
Ω
and connect
HART Modem/Communicator parallel to this
not possible
available
HART Modem/Communicator parallel to this
load
Содержание SITRANS F M Intermag 2
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