Datasheet

Series PF2A/PF2W
Functions Refer to the “Instruction Manual” for information on setting and operating.
Note 2) Output mode is set to inverted output at the factory before shipment.
Accumulated switch output
"P"
"n"
Note 2)
"n"
Note 2)
OUT1
Output
mode
ON
OFF
P-3
ON
OFF
n-3
Accumulated flow
→
Accumulated flow →
Note1) For a digital flow switch with an unit switching function. (Fixed SI unit [
l/min, or l, m
3
or m
3
x 10
3
] will be set for switch types without an unit switching function.)
Refer to the specifications of the display unit for the flow rate value per pulse.
Accumulated pulse output
50 msec
ON
OFF
ON
OFF
"P"
OUT1
Output
mode
Real-time switch output
YES
NO
YES
NO
"P"
"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 →
Note 2) Output mode is set
to inverted output at
the factory before
shipment.
Flow rate measurement selection
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. (PF2A7H maintains the values.)
Flow rate conversion
Normal condition: 0°C, 101.3 kPa, dry air
Standard condition: 20°C, 101.3 kPa, 65%RH (ANR)
Switchable between these conditions.
Key lock
This function prevents accidental operations such as
changing the set value.
Accumulation clearance
This function clears the accumulated value.
Initialization of setting (only for Series PF2A7H)
This function restores the setting to the original state,
just as it had been shipped from the factory.
Flow rate measuring unit confirmation
This function allows for the confirmation of 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
Real-time switch output, accumulated switch output, or
accumulated pulse output can be selected as an output type.
Unit switching
Note) Fixed SI unit (l/min, or l, m
3
, m
3
x 10
3
) will be set for the
type without the unit switching function.
Display Real-time flow rate
l/min
CFM x 10
-2
x CFM x 10
-1
Accumulated flow
l
ft
3
x 10
-1
For Air
CFM = ft
3
/min
Display Real-time flow rate
l/min
GPM
Accumulated flow
l
gal (US)
For Water / High Temperature Fluid Type (For Water)
High Flow Rate Type (For Air)
GPM = gal (US)/min
Display Real-time flow rate
l/min
CFM
Accumulated flow
l, m
3
, m
3
x 10
3
ft
3
, ft
3
x 10
3
, ft
3
x 10
6
∗ OUT2 is also
the same.
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