Seametrics IP80-Series Manuel d'utilisateur télécharger pdf (Page 11)

Problem

Probable Cause Try...

No signal

after installation

Inaccurate

metering

Consult Flow Range Chart

Reduce pipe size or use different

sensor

Check connections at control;

Red (+), Black (-), White (signal)

Use 6-24 Vdc power supply

Add pull up resistor, if using current-

sourcing device

Remove ﬂow sensor from ﬁtting and check

for free spinning; replace rotor

See signal troubleshooting; replace

magnetic sensor

Move meter away from ﬂow disturbance, or

ﬁeld-calibrate

Check ﬁtting for K-Factor, check indicator to

see if it is entered properly ("Set K" on

FT420, FT415, FT520)

Remove ﬂow sensor from pipe. If indicator

is FT415, FT420, FT520, set K to 1.00,

turn rotor slowly by hand, indicator should

count each blade; replace sensor

If using FT415 or FT420, check left side of

display (sec, min, hr, day); change to

desired unit

Insufﬁcient ﬂow

Bad connections to control electronics

Incompatible control

Damaged or missing rotor

Failed magnetic sensor

Not enough straight pipe between meter and

severe ﬂow disturbance

Wrong K-Factor entered

Magnetic sensor failing to pick up each blade

Wrong time units on ﬂow indicator

TROUBLESHOOTING

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