Specifications
Model
PFG300
series
Applicable SMC
flow switch
Model
PF3A701H
PF3A702H
PF3A703H
PF3A706H
PF3A712H
Rated flow range
*
1
10 to 1000 L/min
20 to 2000 L/min
30 to 3000 L/min
60 to 6000 L/min
120 to 12000 L/min
Flow
Set point range
Instantaneous flow
−50 to 1050 L/min
−100 to 2100 L/min −150 to 3150 L/min −300 to 6300 L/min −600 to 12600 L/min
Accumulated flow
0 to 999,999,999,990 L
0 to 999,999,999,990 L
0 to 999,999,999,900 L
Smallest settable
increment
Instantaneous flow
1 L/min
2 L/min
5 L/min
10 L/min
Accumulated flow
10 L
10 L
100 L
Accumulated volume per pulse
(Pulse width = 50 ms)
10 L/pulse
10 L/pulse
100 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% (24 VDC when the PF3A7
H is connected)
Current consumption
25 mA or less
Protection
Polarity protection
Accuracy
Display accuracy
±
0.5% F.S.
±
Minimum display unit (Ambient temperature of 25
°
C)
Analog output accuracy
±
0.5% F.S. (Ambient temperature of 25
°
C)
Repeatability
±
0.1% F.S.
±
Minimum display unit
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
*
2
3 ms or less
Delay time
*
2
Select from 0.00, 0.05 to 0.1 s (increment of 0.01 s), 0.1 to 1.0 s (increment of 0.1 s), 1 to 10 s (increment of 1 s), 20 s, 30 s, 40 s, 50 s, or 60 s.
Hysteresis
*
4
Variable 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 maximum value of the rated flow)
Impedance
Voltage output
Output impedance: 1 k
Ω
Current output
Maximum load impedance: 300
Ω
(at power supply voltage of 12 V), 600
Ω
(at power supply voltage of 24 VDC)
Response time
*
2
50 ms or less
External input
*
6
External 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 M
Ω
), Current input: 4 to 20 mA DC (Input impedance: 51
Ω
)
(0 L/min to maximum 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 (ft
3
/min)
Accumulated flow
L, ft
3
, L x 10
6
, ft
3
x 10
6
Display range
Instantaneous flow
−50 to 1050 L/min
−100 to 2100 L/min −150 to 3150 L/min −300 to 6300 L/min −600 to 12600 L/min
Accumulated flow
*
9
0 to 999,999,999,990 L
0 to 999,999,999,990 L
0 to 999,999,999,900 L
Minimum
display unit
Instantaneous flow
1 L/min
2 L/min
5 L/min
10 L/min
Accumulated flow
10 L
10 L
100 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 (increment of 0.01 s), 0.1 to 1.0 s (increment of 0.1 s), 1 to 10 s (increment of 1 s), 20 s, or 30 s.
Environment
Enclosure
IP40
Withstand voltage
1000 VAC for 1 minute between terminals and housing
Insulation resistance
50 M
Ω
or 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 maximum
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, the width for setting more than
the fluctuating width needs to be set. 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 units 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 10
6
lights 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.
32
3-Screen Display
Digital Flow Monitor
PFG300
Series