Flow Sensor Flow Monitor PFM3 Series
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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 |
| 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 |
| 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 |
| 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.
Drawing / Structural Diagram
(Unit: mm)
Dimensional drawing of PFM3 Series
Structural diagram of connector for sensor connection
| Pin No. | Terminal Name |
|---|---|
| 1 | DC (+) |
| 2 | N.C. |
| 3 | DC (-) |
| 4 | IN* |
*1 to 5 V or 4 to 20 mA
Dimensional drawing with bracket
Dimensional drawing with panel-mount adapter (left figure) and with panel-mount adapter + front protective cover (right figure)
- *Refer to the manufacturer's catalog for information not detailed above.
- *The product images are representative only.