Flow Sensor Flow Monitor PFM3 Series

Brand :

SMC

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Product Description

Flow sensor flow monitor with easy wiring connection and disconnection.
[Features]
・ Vertical, horizontal, close contact mounting are possible (Panel mount)
・ Remote monitor

Flow Sensor Flow Monitor PFM3 Series Specifications

External appearance of PFM3 Series

Option 1: PFM3□□-□L (power supply / output connection cable)

*Cable is not connected. Supplied with the unit.

Option 3: PFM3□□-□□□F (with connector for sensor connection)

*Connector is not connected. Supplied with the unit.

Option 2: PFM3□□-□□E (bracket)

Option 2: PFM3□□-□□B (panel mount adapter)

Option 2: PFM3□□-□□D (panel mount adapter + front protective cover)

*Optional items have not been mounted. Supplied with the unit.

Part Number Notation

Output Specifications

0: NPN2 output + 1 to 5 V output
1: NPN2 output + 4 to 20 mA output
2: NPN2 output + external input*
3: NPN2 output + 1 to 5 V output
4: PNP2 output + 4 to 20 mA output
5: PNP2 output + external input*

*Integrated value external reset, auto-shift and auto-shift Zero can be selected.

Input Specifications

0: Voltage input / application separate type sensor part PFM5□□(S)-□-1-□
1: Current input / application separate type sensor part PFM5□□(S)-□-2-□

Unit Specifications

Blank: with unit switching function*1
M: SI unit fixed*2

*1Due to the New Measurement Act, units with unit switching function cannot be used in Japan.
*2Fixed Unit, Instantaneous flow rate: L/min, accumulated flow rate: L

Instruction manual

Blank: With instruction manual (Japanese and English)
N: No Instruction Manual

Calibration Certificate

Blank: No Calibration Certificate
A: Calibration Certificate included

*Format is Japanese and English adscript only.

Specifications

Model		PFM3□□
Rated Flow Range (Flow Rate Range)	Dry Air, N2, Ar	0.2 to 10 L/min	0.5 to 25 L/min	1 to 50 L/min	2　to 100 L/min
Rated Flow Range (Flow Rate Range)	CO2	0.2 to 5 L/min	0.5 to 12.5 L/min	1 to 25 L/min	2 to 50 L/min
Displayable Range*1)	Dry Air, N2, Ar	0.2 to 10.5 L/min	0.5 to 26.3 L/min	1 to 52.5 L/min	2 to 105 L/min
Displayable Range*1)	CO2	0.2 to 5.2 L/min	0.5 to 13.1 L/min	1 to 26.2 L/min	2 to 52 L/min
Settable Range*1)	Dry Air, N2, Ar	0 to 10.5 L/min	0 to 26.3 L/min	0 to 52.5 L/min	0 to 105 L/min
Settable Range*1)	CO2	0 to 5.2 L/min	0 to 13.1 L/min	0 to 26.2 L/min	0 to 52 L/min
Minimum Unit Setting*2)		0.01 L/min	0.1 L/min	0.1 L/min	0.1 L/min
Flow Rate Conversion Value of Accumulated Pulse		0.1 L/Pulse	0.1 L/Pulse	0.1 L/Pulse	1 L/Pulse
Display Unit*3)		Instantaneous flow rate: L/min, CFM × 10-2 Accumulated flow rate: L, ft3 × 10-1
Accumulated Flow Rate Range*4)		1,999,999 L
Power Supply Voltage		24 V DC ±10% (with polarity protection)
Current Consumption		50 mA or less
Sensor Input Number of Inputs:1		PSE30□: Voltage input 1 to 5 V DC (Input impedance: 1 MΩ) PSE31□: Current input 4 to 20 mA DC (Input impedance: 250 Ω)
Hysteresis*5)		Hysteresis mode: Variable, Window comparator mode: Variable
Switch Output		NPN or PNP open collector output 2 outputs Maximum load current: 80 mA, Maximum load voltage: 30 V DC (at NPN output), residual voltage 1 V or less (at load current 80 mA), with short circuit protection
Accumulated Pulse Output		NPN or PNP open collector output (same as switch output)
Response Time		1 s (50 ms /0.5 s / 2 s can also be selected)
Repeatability		±0.1%F.S., Analog Output is ±0.3%F.S.
Analog Output		Voltage Output: 1 to 5 V DC, (0 L/min to Maximum of Rated Current) Output Impedance: Approx. 1 kΩ, Accuracy: ±1% F.S. (for Readings) , Current Output: 4 to 20 mA DC (0 L/min to Maximum of Rated Flow Rate), Maximum Load Impedance 600 Ω(at 24 V DC), Minimum Load Impedance 50 Ω Accuracy: ±1% F.S. (for Readings)
Display Accuracy		±0.5%F.S. ±1 digit
Display Method		3+1/2 digit, 7-segment indicator, 2-color display (red/green), Sampling cycle: 10 times/sec
Operation Indicator Light		OUT1: Illuminates when output is turned ON (Green), OUT2: Illuminates when output is turned ON (Red)
External Input*6)		Dry input (reed or non-contact), LOW level input 30 ms or more, LOW level 0.4 V or less
Protective Structure		IP40
Operating Temperature Range		During operation: 0 to 50°C, During storage: -10 to 60°C (No freezing or condensation)
Operating Humidity Range		Operating/stored: 35 to 85% RH (no condensation)
Withstand voltage		1,000 V AC for 1 min. between terminals and housing
Insulation Resistance		50 MΩ or more (500 V DC measured via ohmmeter) between terminals and housing
Temperature Characteristics		±0.5%F.S. (25°C reference)
Standard		CE UL,CSA
Connection Method		Power supply, Output connection: 5-pin connector, Sensor connection: 4-pin connector
Material		Front case, rear case: PBT
Weight		30 g (without cable), 85 g (with cable)

*) Sensor to be connected is selected during initial setting. When CO2 is selected as applicable fluid, the maximum side will become 1/2.
*2) When the connected sensor 10 L/min and the minimum setting unit 0.01 L/min are selected, the display upper limit will become "10.50 L/min."
When the connected sensor 100 L/min and the minimum setting unit 0.1 L/min are selected, the display upper limit will become "105.0 L/min."
When shipped from factory, the connected sensor is set to 10 L/min and the minimum setting unit is set to 0.1 L/min.
*3) For digital flow switch unit switching function (Fixed SI unit [L/min or L] will be set for switch types without the unit switching function.)
*4) Accumulated flow rate value is cleared when the power supply is turned OFF and returns to zero. It is possible to select a function to hold the accumulated value so that it is not cleared. (It is possible to select whether to keep the accumulated value at 2-minute interval or 5-minute interval.) When the 5-minute interval is selected, the number of rewrites is limited to 1 million times (5 minutes × 1 million times = 5 million minutes = 9.5 years when energized for 24 hours), which is the lifespan of the memory element (electronic component), calculate the service lifespan from the operating conditions and use within the service lifespan when using the holding function. For digital flow switch unit switching function (Fixed SI unit [L/min or L] will be set for switch types without the unit switching function.)
*5) Set to hysteresis mode at the time of shipment from the factory. Can be changed to window comparator mode by using the push buttons.
*6) When shipped from factory, integrated value external reset function is set. Auto-shift and Auto-shift zero function can be selected by push button operation.
*7) For wiring, refer to the instruction manual.
*8) Products with small scratches, smears or variations in display color and brightness, etc., that do not affect the performance will be verified as conforming products.