SMC Networks PF2A Series, Manual

Page: 20 / 31

Specifi cations
Model PFG300
series
Applicable SMC
fl ow switch
Model PFMC7501 PFMC7102 PFMC7202
Rated fl ow range
∗
1
5 to 500
l/
min 10 to 1000
l/
min 20 to 2000
l/
min
Flow
Set point
range
Instantaneous fl ow −25 to 525
l/
min −50 to 1050
l/
min −100 to 2100
l/
min
Accumulated fl ow 0 to 999,999,999,990 L
Smallest settable
increment
Instantaneous fl ow
1
l/
min
Accumulated fl ow 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 fl ow 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.
±
Minimum display unit (Ambient temperature at 25 °C)
Analogue 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
∗
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
Analogue
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 fl ow)
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 fl ow)
Connection method Connector (e-CON)
Protection Over voltage protection (Up to 26.4 VDC)
Display
Display mode Select from Instantaneous fl ow or Accumulated fl ow.
Unit
∗
7
Instantaneous fl ow l/ min, cfm (ft 3 /min)
Accumulated fl ow L, ft
3
, L x 10
6
, ft
3
x 10
6
Display
range
Instantaneous fl ow −25 to 525 l/ min −50 to 1050 l/ min −100 to 2100 l/ min
Accumulated fl ow
∗
9
0 to 999,999,999,990 L
Minimum
display unit
Instantaneous fl ow 1
l/
min
Accumulated fl ow 10 L
Display type LCD
Number of displays 3-screen display (Main screen, Sub screen)
Display colour 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 fi lter
∗
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.
Environmental
resistance
Enclosure IP40
Withstand voltage 1000 VAC for 1 min 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 fl ow range of the applicable fl ow switch
∗
2 Value without digital fi lter (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, be sure to keep a sufficient
margin. Otherwise, chattering will occur.
∗
5 Setting is only possible for models with analogue 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 fl ow 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 colour or brightness variations which
do not affect the performance of the product are verifi ed as conforming products.
For fl ow switch precautions and specifi c product precautions,
refer to the “Operation Manual” on the SMC website.
19
PFG300
Series