| Working medium: | |
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| Working temperature: | |
| Proof pressure: | |
| Accuracy: | |
| Accumulated flow range: | |
Product Specification
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.
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.
| Part No. | Min. rated flow rate value | Max. rated flow rate value |
| PF2A710 | 1NL/min | 10NL/min |
| 3.5CFM×10-2 | 35.0CFM×10-2 | |
| PF2A750 | 5NL/min | 50NL/min |
| 18.0CFM×10-2 | 176.0CFM×10-2 | |
| PF2A711 | 10NL/min | 100NL/min |
| 3.5CFM×10-1 | 35.5CFM×10-1 | |
| PF2A721 | 20NL/min | 200NL/min |
| 7.0CFM×10-1 | 71.0CFM×10-1 | |
| PF2A751 | 50NL/min | 500NL/min |
| 18.0CFM×10-1 | 176.0CFM×10-1 |
* When using the analog output of the standard state, please convert according to the following formula.
Base state flow rate value ÷ 0.927 = Standard state flow rate value.
Main Dimensions
Catalogue PDF
English
