SMC Networks PF3A801H-L User Manual

-92-
No.PF※※-OMY0005
Error indication
Problem Possible
causes
Investigation method
Countermeasure
•The display turns
off.
•Part of the display
is missing.
Incorrect power
supply
Check if the power supply voltage is
21.6 to 30 V.
Power supply voltage is 21.6 to
30 V.
Incorrect wiring
Check the power supply wiring
Check if the brown and blue wires are
connected to DC(+) and DC(-)
respectively, and if the wiring is secure
Check and correct the wiring.
Display off mode
Check if display off mode is selected.
Select the power saving mode
again.
Product failure
Replace the product
Display flashes
Incorrect wiring
(1) Check the power supply wiring.
(2) Check if there is bending stress
applied to any part of the lead wire.
(1) Check and correct the wiring.
(2) Correct the wiring (bend
radius and stress).
The display
accuracy does not
meet the
specifications.
Foreign matter
entered
Confirmed foreign matter entry or
sticking to the piping port.
Use a filter to prevent foreign
matter from entering or sticking.
Discharge the condensate of the
filter periodically.
Air leakage
Check if air is leaking from the piping.
Rework the piping.
If the tightening torque is
exceeded, the mounting screws,
brackets and the flow switch may
be damaged.
Warming up
inadequate
Check if the product satisfies the
specified accuracy 10 minutes after
supplying power.
After energizing, the display and
output can drift. Allow the product
to warm up for 10 to 15 minutes.
Product failure
Replace the product
Display
measurement unit
cannot be
changed.
Model Selection
(model selected
does not have unit
conversion
function)
Check if the product number printed on
the product indicates Unit selection
function type.
Unit selection function is not
available for Fixed to SI units
type.
: The unit conversion function is
not for use in Japan due to a
new measurement law.
: Unit fixed to SI:L/min
Product failure
Replace the product
Buttons do not
work
Key-lock mode is
activated.
Check if the key-lock function is turned
on.
Check the key-lock function.
Product failure
Replace the product
There is noise.
Air leakage
Check if air is leaking from the piping.
Rework the piping.
If the tightening torque is
exceeded, the mounting screws
and the switch may be damaged.
Product failure
Replace the product

SMC Networks PF3A801H-L Specifications

General

Brand	SMC Networks
Model	PF3A801H-L
Category	Switch
Language	English