Datasheet

 POWER indicator function
It is possible to check whether power supply is reaching the product. When power is
supplied to the product, the indicator lights up green.
 FLOW indicator function
Status of the flow rate can be checked visually. When the flow rate increases, the
green lamp blinks faster. When below the measurable lower limit of flow rate, the
lamp turns off, when above the measurable upper limit of flow rate, red lamp turns
on.
POWER indicator
FLOW indicator
DescriptionLED display Contents Action
Flow is approximately 110% or
more of the rated flow.
Fluid temperature is either
below –10°C or above 110°C.
Temperature measurement
range error
Over upper limit of flow rate
and temperature
measurement range error
Remote Sensor Unit (Series PF3W5)
POWER FLOW
FLOW indicator: Red ON
RedGreen RedGreen
POWER FLOW
POWER indicator: Red ON
FLOW indicator: Red ON
Red Red
POWER FLOW
POWER indicator: Blinking red
FLOW indicator: Red ON
Red
POWER FLOW
Red
POWER FLOW
Red
POWER
DescriptionLED display Contents Action
Turn off the power supply and then
turn on it again. If the failure cannot
be solved, please contact SMC for
investigation.
System error
POWER indicator: Blinking red
POWER indicator: Red ON
FLOW indicator: Blinking red
Decrease the flow.
Adjust the fluid temperature within
the measurable temperature range.
Internal data error or other
errors occur.
POWER indicator: Red ON
FLOW indicator: OFF
Temperature sensor may be
damaged.
Over upper limit of flow rate
Red
Red
Red
Refer to above.Refer to above.
 Error indication function
When a failure or error arises, the location and contents are displayed.
If the failure cannot be solved after the above actions are performed, please contact SMC for investigation.
Red
Red
Red
Red Red
Red
Red
Red
Series PF3W
Function Details 2
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