Datasheet

34
Error correction
LED display
Contents
A current of more than
80 mA is flowing to OUT1.
A current of more than
80 mA is flowing to OUT2.
The set data has
changed for some
reason.
The flow rate is over the
flow rate measurement
range.
Check the load and the
wiring for OUT1.
Check the load and the
wiring for OUT2.
Perform the RESET
operation, and reset all
the data again.
Use an adjustment valve, etc.
to reduce the flow rate until it
is within the flow rate range.
Solution
Note 2)
Note 2)
Note 1)
Note 1)
Note 1)
Note 1)
Note 2)
Note 1) Applicable to display integrated type and remote type except
PF2A7H series.
Note 2) Applicable to PF2A7H series only.
LED display
Contents
Over current is flowing to the
load of a switch output.
Solution
Internal data error.
Contact SMC.
Shut off the power supply
and then reset the switch.
Use an adjustment valve, etc.
to reduce the flow rate until it
is within the flow rate range.
Internal data error.
Internal data error.
Internal data error.
Internal data error.
Functions
Copy function
(PF2200, 201 only)
Information to be copied is:
q Flow rate range
w Display mode
e Display unit (Only available when the unit specification
is nil.)
r Output method
t Output mode
y Flow rate display unit (available with PF2A20 only)
u Flow rate value
Changes displaying the channel shown every about 2
seconds and its detected flow rate.
Channel select function (PF2200, 201 only)
Every pushing the  button, channel selection
“1→2→3→4→1...” is available. The flow rate measure-
ment of each selected channel is shown in the display
unit.
The maximum or minimum value can be held in the case
where the real-time flow rate display mode is selected
during the initial setting.
Peak hold, Bottom hold display function
(PF2200, 201 only)
For PF2A/W200, 201
Channel scan function (PF2200, 201 only)
Shut off the power supply.
After eliminating the output
factor that caused the excess
current, turn the power
supply back on.
The flow rate is over the flow
rate measurement range.
Digital Flow Switch Series PF2A/PF2W
For Air/Water