S-178-10(E)
0
Symptom
6. Counts while valves
remain closed
(without fluid flow).
7. Accumulated total
high.
8. Accumulated total
low.
Possible Cause
1. Liquid leaks. Or air pockets between
the valve and meter: rotors oscillate
relative to ripple pressures of the
pump.
1. Rotors in rocking motion in response
to a pulsating flow.
2. Influenced by external magnetic
fields (Meter sensor senses external
magnetic fields created by a motor,
generator, etc.).
. Air entrapment.
1. Influenced by external magnetic
fields.
Remedy
1. Provide an air bleed.
. Provide a check valve and
accumulator.
1. Add a check valve and
accumulator.
. Remove external magnetic fields.
. Provide an air vent.
1. Remove external magnetic fields.
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NOTE:
When troubles is found other than any of those shown above, seek our service. In this case, please
supply the product name, model number, symptoms or other information that will help distinguish
the trouble.