Datasheet

54
Functions/PF2D Refer to the “Instruction Manual” for information on setting and operating.
Display Real-time flow rate
l/min
GPM
Accumulated flow
l
gal (US)
GPM = gal (US)/min
Note) Fixed SI unit (l/min, l, m
3
or m
3
x10) will be set for the type
without the unit switching function.
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.
Solution
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.
Accumulated switch output
Accumulated pulse output
Flow rate measurement selection
Error correction
Real-time flow rate and accumulated flow rate can be selected.
A flow rate of up to 999999 can be accumulated.
The accumulated flow rate is reset when the power
supply turns OFF.
Key lock
This function prevents incorrect operations such as
changing the set value accidentally.
Accumulation clearance
This is to clear the accumulated value.
Flow rate measuring unit confirmation
This function allows to confirm the accumulated flow rate
when real-time flow rate is selected and to confirm the
real-time flow rate when accumulated flow rate is selected.
Output types
Unit switching
For PF2D300/301
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.
Internal data error.
Internal data error.
Internal data error.
Internal data error.
For PF2D200/201
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.
Use an adjustment valve, etc.
to reduce the flow rate until it
is within the flow rate range.
Digital Flow Switch Series PF2D
For Deionized Water and Chemicals
Real-time switch output
Real-time switch output, accumulated switch output, or
accumulated pulse output can be selected as an output
type.
Note 2) Output mode is set to inverted output at the factory before shipment.
YES
NO
YES
NO
"P"
Note 2)
"n"
OUT1
Output
mode
• Window comparator mode
H : Hysteresis
• Window comparator mode
H : Hysteresis
• Hysteresis mode
• Hysteresis mode
ON
OFF
P-1P-2
ON
OFF
n-1n-2
ON
OFF
P-1 P-2
HH
HH
ON
OFF
n-2n-1
Real-time flow rate
→
Real-time flow rate →
Real-time flow rate →
Real-time flow rate →
∗ OUT2 is also
the same.
Note 2) Output mode is set to inverted output at the factory before shipment.
"P"
Note 2)
"n"
OUT1
ON
OFF
P-3
ON
OFF
n-3
Accumulated flow rate
→
Accumulated flow rate →
Output
mode
Note1) Refer to the specifications of display unit for the flow rate value per pulse.
50 msec
ON
OFF
ON
OFF
"P"
Note 1)
"n"
OUT1
Output
mode