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- LFE, Digital Liquid Flow Sensor, Electromagnetic, 2-Screen 3-Color Display, IP65, 0.5-200 Lpm
LFE, Digital Liquid Flow Sensor, Electromagnetic, 2-Screen 3-Color Display, IP65, 0.5-200 Lpm
LFE is a digital flow sensor for water and non-corrosive conductive liquids. While the PF3W sensors detect flow using the Karman vortex principle, LFE applies Faraday's law of induction. There are no obstacles or moving parts in the flow path, yielding a smaller pressure loss which saves pumping energy. Detectable liquids have fewer viscosity restraints. Finally, the flow direction can be changed after installation. The 2-screen, 3-color display can show the measured value in the primary screen, while viewing a variey of secondary data in the sub-screen. Two outputs are available, including two switch signals, or a switch and analog signal. Options include a mounting bracket and M12 lead wire. Piping connections are C37 brass as standard, while the -X8 option offers 304 stainless steel. LFE is IP65 rated, and CE and RoHS compliant.
- Flow ranges (lpm): 0.5-20, 2.5-100, 5-200
- Port sizes (Rc, NPT, G): 3/8, 1/2, 3/4, 1, (flow range dependent)
- Temperature rating: 0-85°C
- Output options: NPN/PNP, 1-5V, 4-20mA
- Accuracy: ±4% F.S.
- Repeatability: ±2% F.S.
How to order
Made to Order (Refer to p. 17.)
Thread type
Symbol Description
X8
Piping connection parts: Stainless steel 304
Symbol Type
Nil
Rc
N
NPT
F
G
The close proximity setting and zero-reset setting functions are only
available for the integrated display type.
For the remote type sensor unit, the close proximity setting and zero-
reset setting functions cannot be used.
∗ When using this switch in
combination with an LFE0,
select output specification J.
Option/Part No.
When only optional parts are required, order with the part numbers listed below.
LFE
Rated flow range
Integrated display type
Output specifications
Output specifications
Electromagnetic Digital Flow Switch
3-Color Display
LFE
Remote type sensor unit
Port size
1
1 3J
3A
How to Order
Option
∗1 Options 4, 5, 6, and 7, which are not in SI units, are not for
use in Japan due to the New Measurement Law.
∗2 Options 4, 5, 6, and 7 cannot be selected when the output
specification is J or K.
Reference: 1 [L/min] = 0.2642 [
gal/min
]
1 [
gal/min
] = 3.785 [L/min]
LFE Series
RoHS
Integrated
display type
Remote type
sensor unit
Remote type
monitor unit
For details, refer
to p. 10.
Symbol
OUT
J
Analog 1 to 5 V
K
Analog 4 to 20 mA
Symbol
Rated flow range
1
0.5 to 20 L/min
2
2.5 to 100 L/min
3
5 to 200 L/min
Symbol
OUT1 OUT2
A
NPN NPN
B
PNP PNP
C
NPN Analog 1 to 5 V
D
NPN Analog 4 to 20 mA
Symbol
Port size
Applicable model
LFE1 LFE2 LFE3
3
3/8
V
— —
4
1/2
V
— —
6
3/4 —
V
—
8
1 — —
V
Symbol
Lead wire and M12
connector (Length 3 m)
Bracket Display unit
Nil
V
— L/min
1
— — L/min
2
V V
L/min
3
—
V
L/min
4
∗1∗2
V
— gal/min
5
∗1∗2
— — gal/min
6
∗1∗2
V V
gal/min
7
∗1∗2
—
V
gal/min
Option Part no. Note Weight
Lead wire and M12 connector
LFE-1-A3
Lead wire length 3 m
Approx. 175 g
Option Part no. Note Weight
Bracket
LFE-1-D
Tapping screw for LFE1 (3 x 10), 4 pcs.
Approx. 45 g
LFE-2-D
Tapping screw for LFE2 (3 x 10), 4 pcs.
Approx. 70 g
LFE-3-D
Tapping screw for LFE3 (3 x 10), 4 pcs.
Approx. 70 g
3
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