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PF2A Series Digital Flow Switch For Air, Integrated type

1. The PF2A is suitable for applications requiring a metered quantity of air, such as for supply confirmation, filling accumulation, or fixed supply consumption.
2. The display can be rotated in 90 degree increments, offering better operation visibility.
3. The thermal sensor is protected in a bypass flow path to reduce contact with moisture and contaminants, avoiding accuracy deterioration and damage.

4. The PF2A has an IP65 ingress protection rating and is both RoHS and CE compliant.

Model:
PF2A710
Brand:
VPC Pneumatic
Code:
8481804090

Working medium:	Dry Air, Nitrogen
Working temperature:	0 to 50℃
Proof pressure:	1.0MPa
Accuracy:	±5%F.S.
Accumulated flow range:	0 to 999999L
Availability:



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Product Specification

■ Product Feature

1. Flow rate setting and monitoring are possible with the digital display.

2. Integrated type and separate monitor types are available.

3. Three types of output: Switch, accumulated pulse, and analog outputs.

4. Capable of switching back and forth between cumulative and instantaneous flow.

5. 4-channel Flow Monitor: 4 independent flow rate ranges can be monitored by a single controller.

pf2a

Product Description

Model		PF2A710	PF2A750	PF2A711	PF2A721	PF2A751
Working medium		Dry Air, Nitrogen
Rated flow range		1 to 10L/min	5 to 50L/min	10 to 100L/min	20 to 200L/min	50 to 500L/min
Mininum set unit		0.1L/min	0.5L/min	1L/min	2L/min	5L/min
Accumulated pulse flow rate exchange value(Pluse width:50ms)		0.1L/pulse	0.5L/pulse	1L/pulse	2L/pulse	5L/pulse
Display units^*1,2)	Instantaneous flow rate	L/min, CFM×10 ^-2		L/min, CFM×10 ^-1
	Accumulated flow	L, ft³×10 ^-1
Working temperature		0 to 50℃
Accuracy^*3)		±5%F.S.
Repeatability		±1%F.S.		±2%F.S.
Temperature characteristics		±3%F.S. (15 to 35℃, 25℃ reference), ±5%F.S. (0 to 50℃, 25℃ reference)
Current consumption		150mA or less		160mA or less		170mA or less
Port size(Rc, NPT, G)		1/8, 1/4		3/8		1/2
Detection type		Heater type
Operating pressure		-50kPa to 0.5MPa		-50kPa to 0.75MPa
Proof pressure		1.0MPa
Accumulated flow range^*4)		0 to 999999L
Output specifications^*5)	Switch output	NPN open collector	Max. load current: 80mA; Internal voltage drop: 1V or less Max. applied voltage: 30V; 2outputs
		PNP open collector	Max. load current: 80mA; Internal voltage drop: 1.5V or less; 2outputs
	Accumulated pulse output	NPN or PNP open collector (same as switch output)
Status LED's		Lights up when output is turned ON OUT1: Green; OUT2: Red
Response time		1 sec. or less
Hysteresis		Hysteresis mode: Variable (can be set from 0), Window comparator mode : 3-digit fixed
Power supply voltage		DC12 to 24 V±10%
Environment	Enclosure	IP65
	Working temperature	Operating: 0 to 50℃, Stored: -25 to 85℃ (with no freezing and condensation)
	Withstand voltage	AC 1000V for 1 minute between terminals and housing
	Insulation resistance	50MΩ or more (DC 500V measured via megohmmeter) between terminals and housing
	Noise resistance	1000V P-P pulse width1μs lasts 1ns

*1) For digital flow switch with unit switching function. (Fixed SI unit [(L/min, or L, m³ or m³×10³)] will be set for switch type without the unit switching function.)

*2) Flow rate display can be switched between the basic condition of 0℃, 101.3 kPa and the standard condition (ANR) of 20℃, 101.3 kPa, and 65% RH.

*3) The piping on the IN side must have a straight section of piping whose length is 8 times the piping diameter or more. If a straight section of piping is not installed, the accuracy may vary by±5% F.S. or more.

*4) Accumulated flow rate is reset when the power supply turns OFF.

*5) Switch output and accumulated pulse output can be selected during initial setting.

*6) Window comparator mode — Since hysteresis will reach 3 digits, keep P_1 and P_2 or n_1 and n_2 apart by 7 digits or more. (In case of output OUT2, n_1, 2 to be n_3, 4 and P_1, 2 to be P_3, 4.)

*7) For details about wiring and thread type, please contact VPC.

*8) Any products with tiny scratches, smears, or display color variation or brightness which does not affect the performance are verified as conforming products.

■ Analogue Output

Part No.	Min. rated flow rate value	Max. rated flow rate value
PF2A710	1NL/min	10NL/min
PF2A710	3.5CFM×10^-2	35.0CFM×10^-2
PF2A750	5NL/min	50NL/min
PF2A750	18.0CFM×10^-2	176.0CFM×10^-2
PF2A711	10NL/min	100NL/min
PF2A711	3.5CFM×10^-1	35.5CFM×10^-1
PF2A721	20NL/min	200NL/min
PF2A721	7.0CFM×10^-1	71.0CFM×10^-1
PF2A751	50NL/min	500NL/min
PF2A751	18.0CFM×10^-1	176.0CFM×10^-1