
Specifications
Model PFG300 series
Applicable SMC
flow switch
Model PF2MC7501 PF2MC7102 PF2MC7202
Rated flow range*15 to 500 L/min 10 to 1000 L/min 20 to 2000 L/min
Flow
Set point
range
Instantaneous flow
−25 to 525 L/min −50 to 1050 L/min −100 to 2100 L/min
Accumulated flow
0 to 999,999,999,990 L
Smallest settable
increment
Instantaneous flow
1 L/min
Accumulated flow
10 L
Accumulated volume per pulse
(Pulse width = 50 ms)
1 L/pulse 10 L/pulse
Accumulated value hold function
*3
Intervals of 2 or 5 minutes can be selected. The stored accumulated flow is held even when the power supply is OFF.
Electrical
Power supply voltage 12 to 24 VDC ±10%
Current consumption 25 mA or less
Protection Polarity protection
Accuracy
Display accuracy ±0.5% F.S. ±Min. display unit (Ambient temperature at 25°C)
Analog output accuracy ±0.5% F.S. (Ambient temperature at 25°C)
Repeatability ±0.1% F.S. ±1 digit
Temperature characteristics
±0.5% F.S. (Ambient temperature: 0 to 50°C, 25°C standard)
Switch output
Output type Select from NPN or PNP open collector output.
Output mode Select from Hysteresis, Window comparator, Accumulated output, Accumulated pulse output,
Error output, or Switch output OFF modes.
Switch operation Select from Normal or Reversed output.
Max. load current 80 mA
Max. applied voltage (NPN only)
30 VDC
Internal voltage drop (Residual voltage)
NPN output: 1 V or less (at load current of 80 mA), PNP output: 1.5 V or less (at load current of 80 mA)
Response time*23 ms or less
Delay time*2
Select from 0.00, 0.05 to 0.1 s (increments of 0.01 s), 0.1 to 1.0 s (increments of 0.1 s), 1 to 10 s (increments of 1 s), 20 s, 30 s, 40 s, 50 s, or 60 s.
Hysteresis*4Variable from 0
Protection Short circuit protection
Analog output*5
Output type
Voltage output: 1 to 5 V, 0 to 10 V (only when the power supply voltage is 24 VDC)
Current output: 4 to 20 mA
(0 L/min to max. value of the rated flow)
Impedance
Voltage output
Output impedance: 1 kΩ
Current output
Max. load impedance: 300 Ω(at power supply voltage of 12 V), 600 Ω(at power supply voltage of 24 VDC)
Response time*250 ms or less
External input*6External input Input voltage: 0.4 V or less (Reed or Solid state) for 30 ms or longer
Input mode Select from Accumulated value external reset or Peak/Bottom value reset.
Sensor input
Input type
Voltage input: 1 to 5 VDC (Input impedance: 1 MΩ), Current input: 4 to 20 mA DC (Input impedance: 51 Ω)
(0 L/min to max.value of the rated flow)
Connection method Connector (e-CON)
Protection Over voltage protection (Up to 26.4 VDC)
Display
Display mode Select from Instantaneous flow or Accumulated flow.
Unit*7
Instantaneous flow
L/min, cfm (ft3/min)
Accumulated flow
L, ft3, L x 106, ft3x 106
Display
range
Instantaneous flow
−25 to 525 L/min −50 to 1050 L/min −100 to 2100 L/min
Accumulated flow*9
0 to 999,999,999,990 L
Min. display
unit
Instantaneous flow
1 L/min
Accumulated flow
10 L
Display type LCD
Number of displays 3-screen display (Main screen, Sub screen)
Display color 1) Main screen: Red/Green, 2) Sub screen: Orange
Number of display digits 1) Main screen: 5 digits (7 segments), 2) Sub screen: 9 digits (7 segments)
Indicator LED LED ON when switch output is ON. OUT1/2: Orange
Digital filter*8
Select from 0.00, 0.05 to 0.1 s (increments of 0.01 s), 0.1 to 1.0 s (increments of 0.1 s), 1 to 10 s (increments of 1 s), 20 s, or 30 s.
Environmental
resistance
Enclosure IP40
Withstand voltage 1000 VAC for 1 min between terminals and housing
Insulation resistance 50 MΩor more (500 VDC measured via megohmmeter) between terminals and housing
Operating temperature range
Operating: 0 to 50°C, Stored: −10 to 60°C (No condensation or freezing)
Operating humidity range Operating/Stored: 35 to 85% RH (No condensation or freezing)
Standards CE marking (EMC directive/RoHS directive)
Weight Body 25 g (Excluding the power supply/output connection lead wire)
Lead wire with connector +39 g
*1 Rated flow range of the applicable flow switch
*2 Value without digital filter (at 0.00 s)
*3 When using the accumulated value hold function, use the operating
conditions to calculate the product life, and do not exceed it. The max.
access limit of the memory device is 1.5 million times. If the product is
operated 24 hours per day, the product life will be as follows:
•
5 min interval: life is calculated as 5 min x 1.5 million = 7.5 million min = 14.3 years
•
2 min interval: life is calculated as 2 min x 1.5 million = 3 million min = 5.7 years
If the accumulated value external reset is repeatedly used, the product life
will be shorter than the calculated life.
*4 If the flow fluctuates around the set value, be sure to keep a sufficient
margin. Otherwise, chattering will occur.
*5 Setting is only possible for models with analog output.
*6 Setting is only possible for models with external input.
*7 Setting is only possible for models with the unit selection function.
*8
The response time indicates when the set value is 90% in relation to the step input.
*9 The accumulated flow display is the upper 6-digit and lower 6-digit (total of
12 digits) display. When the upper digits are displayed, x 106lights up.
*
Products with tiny scratches, marks, or display color or brightness variations which
do not affect the performance of the product are verified as conforming products.
For flow switch precautions and specific product precautions,
refer to the “Operation Manual” on the SMC website.
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PFG300 Series