SMC Networks LFE Series User Manual page 6

LFE
Series
Specifications (Remote Type Sensor Unit)
Model
Applicable fluid Note 1)
Applicable fluid conductivity
Detection method
Ground Note 5)
Rated flow range
Note 6)
Operating fluid temperature
Repeatability
Temperature Ambient temperature
characteristics Fluid temperature
Operating pressure range
Proof pressure Note 2)
Response time
Analog output Voltage output
Current output
Power supply voltage
Current consumption
Enclosure
Environmental
Operating temperature range
resistance
Operating humidity range
Standards and regulations
Parts material in contact with fluid
Port size
Weight (Body) Note 4)
Note 1) Refer to "Applicable Fluids List" on page 379.
Note 2) When fluids with high temperature are used, the available pressure range will be reduced. (For details, refer to "Operating Pressure Range" on page 365.)
Note 3) The response time until the set value reaches 63% in relation to the step input.
Note 4) When options are used, add the weight of the optional parts.
Note 5) Piping port and the metal part of the body are grounded to DC(–)/blue line. Power supply with positive ground cannot be used. Please consult SMC
if the product is used for positive ground environment.
Note 6) The rated flow range is a flow range in which the product specifications (accuracy and repeatability) of the sensor are satisfied. The correct flow
value may not be indicated outside the flow range.
Analog Output
Flow/Analog output
A B
Voltage output 1 V 1.1 V
Current output 4 mA 4.4 mA
Rated flow [L/min]
Model
Minimum
LFE1
0.5
LFE2
2.5
LFE3
5
364
A
LFE1
Water, Conductive fluids which do not corrode the fluid contact materials.
Note 1)
0.5 to 20 L/min
Note 2)
Note 2)
Note 3)
3/8 (10A)
Approx. 335 g
Output
C
C
5 V
20 mA
Maximum
B
20
A
100
0 Min.
200
rated flow
LFE2
5 µS/cm or more (micro siemens)
Electrostatic capacity type
Negative ground
2.5 to 100 L/min
0 to 85°C (with no freezing and condensation)
Analog output: ±1.5% F.S.
±5% F.S. (25°C reference)
±5% F.S. (25°C reference)
0 to 1 MPa
2 MPa
Output voltage: 1 to 5 V Output impedance: 1 kΩ
Output current: 4 to 20 mA Max. load impedance: 600 Ω
24 VDC ±10%
42 mA or less (Load current is not included.)
0 to 50°C (with no freezing and condensation)
Operating, Storage: 35 to 85% R.H. (with no condensation)
CE marking, RoHS
PPS, FKM, Brass
1/2 (15A) 3/4 (20A)
Approx. 395 g Approx. 515 g
Flow rate
Max.
rated flow
Refer to page 370 for the monitor unit specifications.
0.5 s
IP65
Outside the range
LFE3
Note 1)
5 to 200 L/min
1 (25A)
Approx. 675 g