Datasheet
9
0
Output
Min. rated
flow
Max. rated
flow
Flow rate
A
C
B
Specifications
Note 1) Cleared when the power supply is turned off. Hold function can be selected. (Interval of 2 or 5 minutes can be selected.) If the 5 minutes interval is
selected, the life of the memory element (electronic parts) is limited to 1 million cycles. (If energized for 24 hours, life is calculated as 5 minutes x 1
million = 5 million minutes = about 9.5 years.) Therefore, if using the hold function, calculate the memory life for your operating conditions, and use
within this life.
Note 2) The response time when the set value is 63% in relation to the step input.
Note 3) The response time until the set value reaches 63% in relation to the step input.
Model
LFE0
Display flow range
Set flow range
Minimum setting unit
Accumulated volume per pulse
Display units
Accuracy
Repeatability
Temperature characteristics
Accumulated flow range
Note 1)
Switch output
Analogue
output
Hysteresis
Input/output
Display method
Status LED’s
Power supply voltage
Current consumption
Connection
Standards and regulations
Weight
Maximum load current
Maximum applied voltage
Internal voltage drop
Response time
Note 2)
Output protection
Output
mode
Response time
Note 3)
Voltage output
Current output
Enclosure
Operating temperature range
Operating humidity range
Withstand voltage
Insulation resistance
Environmental
resistance
Without power supply/output
connection lead wire
With power supply/output
connection lead wire
Instantaneous flow rate L/min, Accumulated flow L
Displayed values: ±0.5% F.S., Analogue output: ±0.5% F.S.
±0.5% F.S.
±0.5% F.S. (25°C reference)
NPN or PNP open collector output
80 mA
28 VDC
NPN: 1 V or less (at load current 80 mA) PNP: 1.5 V or less (at load current 80 mA)
0.5 s/1 s/2 s/5 s
Short-circuit protection
Select from hysteresis mode, window comparator mode, accumulated output mode, or accumulated pulse output mode.
0.5 s/1 s/2 s/5 s (linked with the switch output)
Output voltage: 1 to 5 V Output impedance: 1 kΩ
Output current: 4 to 20 mA Max. load impedance: 300 Ω for 12 VDC, 600 Ω for 24 VDC
Variable
Input for copy mode
2-screen (Main screen: 4-digit, 7-segment, 2-color, Red/Green; Sub screen: 6-digit, 11-segment, White) Display values updated 5 times per second
Output 1, Output 2: (Orange)
24 VDC ±10%
50 mA or less
Power supply output 5P connector, sensor connection 4P connector (e-con)
IP40 (Only front face of the panel is IP65 when panel mount adapter and waterproof seal of optional parts are used.)
0 to 50°C (with no freezing and condensation)
Operating, Storage: 35 to 85% R.H. (with no condensation)
1000 VAC for 1 minute between terminals and housing
50 MΩ or more (500 VDC measured via megohmmeter) between terminals and housing
CE marking, RoHS
50 g
100 g
2.0 to 120.0 L/min
0.5 L/min
0.5 L/pulse
4 to 240 L/min
1 L/min
1 L/pulse
0.4 to 24.0 L/min
0.1 L/min
0.1 L/pulse
99999999.9 L
by 0.1 L
999999999 L
by 1 L
Flow rate
Temperature
Select from hysteresis mode or window comparator mode.
Analogue Output
Flow/Analogue output
Voltage output
Current output
1 V
4 mA
A
1.1 V
4.4 mA
B
5 V
20 mA
C
LFE1
LFE2
LFE3
0.5
2.5
5
Minimum
Connected
sensor
Rated flow [L/min]
20
100
200
Maximum
0.4 to 24.0 L/min
(Flow under 0.4 L/min is displayed as “0.00”)
2.0 to 120.0 L/min
(Flow under 2.0 L/min is displayed as “0.0”)
4 to 240 L/min
(Flow under 4 L/min is displayed as “0.0”)
Series LFE0