SMC PF2A311-A digital flow sw,remote display, IF/PFA FLOW SWITCH

Part Number: PF2A311-A

Series Catalog

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Description
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SMC Part Description: tab 4
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Weight: tab 9
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SMC offers a variety of digital flow switches. Series PF2A for air, PF2W for water, PF2D for deionized water and chemicals. Flow rate setting and monitoring are possible with the digital display. Integrated and remote type displays are available for different types of application. Water resistant construction is used conforming to IP65 protection. Switching from real-time flow rate to accumulated flow is possible.

Digital flow switch for air applications
Remote type display unit
Flow rate range: 1-10(l/min) ~ 50-500(l/min)
Panel mounting
NPN or PNP open collector 2 outputs

Series Catalog

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DIGITAL FLOW SW,REMOTE DISPLAY

INSTRUMENTATION

IF/PFA FLOW SWITCH

IF/PFA NO SIZE ALL OTHERS

.24802 lb

Model

Flow rate measurement range Note 1)

Set flow rate range Note 1)

Minimum set unit Note 1)

Accumulated pulse flow rate exchange value (Pulse width: 50 ms) Note 1)

Note 2, 3) Display units

Accumulated flow range Note 4)

Linearity Note 5)

Repeatability Note 5)

Temperature characteristics

Current consumption (No load)

Weight

Output Note 6)specifications

Indicator light

Status LED?s

Power supply voltage

Response time

Hysteresis

Resistance

PF2A310/311

5 to 105 l/min

1 l/min

1 l/pulse

l/min, CFM x 10-1

l, ft3 x 10-1

0 to 999999 l

?5% F.S. or less

?1% F.S. or less

?1% F.S. or less (15 to 35C, based on 25C)?2% F.S. or less (0 to 50C, based on 25C)

60 mA or less

45 g

Maximum load current: 80 mANPN open collector (PF2A300, PF2A310) Internal voltage drop: 1 V or less (with load current of 80 mA)Maximum applied voltage: 30 V2 outputs

Maximum load current: 80 mAPNP open collector (PF2A301, PF2A311) Internal voltage drop: 1.5 V or less (with load current of 80 mA)2 outputs

NPN or PNP open collector (same as switch output)

3-digit, 7-segment LED

Illuminates up when output is ON OUT1: Green; OUT2: Red

12 to 24 VDC (ripple ?10% or less)

1 sec. or less

Hysteresis mode: Variable (can be set from 0), Window comparator mode Note 7) : Fixed (3-digits)

IP40

Operating: 0 to 50C, Stored: ?25 to 85C (with no freezing and condensation)

1000 VAC for 1 min. between external terminal and case

50M or more (500 VDC Mega) between external terminal and case.

10 to 500 Hz with a 1.5 mm amplitude or 98 m/s2 acceleration, in each X, Y, Z direction for 2 hrs, whichever is smaller.

490 m/s2 in X, Y, Z directions 3 times each

1000 Vp-p, Pulse width 1 ?s, Rise time 1 ns