Nitto Flowtech MF710, Operation Instruments

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11. Common failures and how to deal with
12. Open box and product sets
Check packing box, and check the sensor model, the contract specifications in line with
the order randomized complete documents
KF700 series EMF manual instructions
1 pcs
1 pcs
1 pcs
1 pcs
certification
packing list
CD
Regular failure and obviate method
Troubles
Use a multimeter to check signal good or not
Use a multimeter to check sensor loop is good or not
According transimitter manual inspection,
troubleshooting
Grounding bad or electrode dirty, Zero
Trim after inspections
Adjusted in accordance with the parameters
set, and then zero trim
Inspection process to improve the
installation method
Clear scaling
Carried out using standard flow meter to compare
2.Signal circuit break
2.medium in tube not full
2.Transmitter configure be modified
3.Imperfect earth
3.Medium in tube not full
4.Electrode or wall scaling
3.Open-loop excitation
4.Transmitter failure
Possible Causes
Check the troubleshooting
Failure to deal with reference to Table
Check signal line to ground resistance to use a
multimeter measuring electrode-to-ground resistance,
generally from thousands of OM to some 10k om
Electromagnetic flow sensors generally do not require regular maintenance, but medium of measured is
easily adhesion in the electrode or dielectric tube wall measurements or scaling of the occasion, the
need for regular cleaning pipe wall of measurement and electrodes, attention do not damage liner,
electrode.
Liquid flow
through the
meter ithout
instructions
Changes in
the flow
apparatus
showed that
full-scale on
transmitter
Instrumented
inconsistent
with the actual
flow
1.Moisture sensor or signal-to-ground
short-circuit resulting in damage
1.A signal-to-ground short-circuit or open
circuit
1.Change the zero point to make
measurement error
5.error in actual determination to check with
Flowmeter
Use a multimeter to check insulator of signal
line whether good or not
SENSORS PARTS
Use a multimeter to check signal lines open or
not and to improve the installation method
Check the signal shielding layer and then place
resistors, re-installation of grounding devices
10
SENSORS PARTS
TM
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SENSORS