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E8FC

IoT Flow Sensors

E8FC

Detect signs of abnormalities in cooling water, water-soluble coolant, and water-insoluble oil by simultaneous measurement of “flow rate + temperature”

Note. For information on the following models, refer to the E8FC-25D/25T/25 series data sheet (Catalog No.E608) listed in the Catalog column.
E8FC-25D/E8FC-25T/E8FC-25

Sensors

Model NPN/PNP selectable (COM2) E8FC-25SD
NPN/PNP selectable (COM3) E8FC-25ST
Applicable
diameter
Nominal diameter B 3/8" 1/2" 3/4" 1"
Nominal diameter A 10 A 15 A 20 A 25 A
Applicable fluid The fluid must not corrode the material of the wetted part (e.g. water,
water-soluble coolants, insoluble oils)
Permissible pressure *1 10 MPa
Flow rate
monitoring
*2
Rated flow rate range 0.6 to 14 l/min 1 to 30 l/min 1.5 to 60 l/min 2 to 100 l/min
Inner diameter setting (10 A, 15 A, 20 A, 25 A)
Display range 0 to 16 l/min 0 to 33 l/min 0 to 66 l/min 0 to 110 l/min
Zero cutting flow rate *3 0.6 l/min 1 l/min 1.5 l/min 2 l/min
Display resolution 0.1, 0.5, 1 l/min (Selectable)
Flow rate monitoring
response time
Control output: 1, 2.5, 5, 10, 30, 60 s
Flow rate monitoring
precision *4
± (7.0% of measured value + 2.0% F.S.) or less
Flow rate repeatability
(prescribed for each
response time)
1 s: ±3.5% F.S., 2.5 s: ±2.5%F.S., 5 s: ±1.6% F.S., 10 s: ±1% F.S.,
30 s: ±0.8% F.S., 60 s: ±0.6%F.S.
Ambient temperature
characteristics *5
±1.0% F.S./10°C
Hysteresis Variable
Temperature
monitoring
*6
Temperature monitoring
rated range *7
0 to 85°C
Temperature monitoring
precision
±2.5°C
Temperature repeatability ±0.5°C
Control
output
judgment
(selectable)
Standard mode It is judged if the measured value is the threshold value or more (or
less).
Window mode It is judged if the measured value is within the upper and lower limits.
Display method Numerical value indication: 4-digit 7-segment white LED with inverting
function
Status indicators: The content of indication is selectable from green,
orange, red, and OFF.
Output indicator: OUT1 operation (orange), OUT2 operation (orange)
Unit indicator: l/min (White), % (White), °C (White), ST (White)
Communication indicator: IO-Link mark (green)
Delay setting 1 to 9999 ms (Select a function from invalid, ON delay, OFF delay, and
one-shot.)
Connection method M12, 4-pole connector type
Output ch1 Control output Flow rate control output (N.O./N.C.) /temperature control output (N.O./
N.C.)
NPN/PNP selectable
30 VDC or less, max. 100 mA/ch, residual voltage 1 V or less
Analog current output *8 Flow rate analog output /temperature analog output
Current output 4 to 20 mA (maximum load resistance 350Ω or less)
(Display value ± 2% of FS)
Pulse output 1, 10, 100, 1000 l
Output ch2 Control output Flow rate control output (N.O./N.C.) /temperature control output (N.O./
N.C.)
NPN/PNP selectable
30 VDC or less, max. 100 mA/ch, residual voltage 1 V or less
Analog current output *8 Flow rate analog output /temperature analog output
Current output 4 to 20 mA (maximum load resistance 350Ω or less)
(Display value ± 2% of F.S.)
Pulse output 1, 10, 100, 1000 l
External input Smart tuning/One-point tuning (selectable, initial status: invalid),
short-circuit current 1.5 mA or less, input time 20 ms or more
IO-Link IO-Link specification Ver 1.1
Baud rate E8FC-25SD: COM2 (38.4kbps)
E8FC-25ST: COM3 (230.4Kbps)
Data length PD Size: 6 byte
OD Size: 1 byte (M-sequence type: TYPE_2_V)
Minimum cycle time E8FC-25SD (COM2): 3.2 ms
E8FC-25ST (COM3): 2.0 ms
Power
supply
Power supply voltage 15 to 30 VDC (including 10% ripple (p-p)), Class 2
Power consumption 2,880 mW or less
(When power supply voltage is 30 V, current consumption must be 96
mA or less.
When power supply voltage is 15 V, current consumption must be 192
mA or less.)
Protection circuit Power supply reverse connection protection, output short-circuit
protection, and output reverse connection protection
Environment
resistance
Ambient temperature range -20 to 70°C in operation and storage, respectively (no condensation)
Applicable fluid temperature 0 to 85°C (no icing on the pipe surface)
Ambient humidity range 35 to 85%RH in operation and storage, respectively (no condensation)
Withstand voltage 500 VAC 50/60 Hz 1 min between charge unit package and case
Vibration resistance
(destruction)
10 to 2000 Hz, double amplitude 1.5 mm, 2 hours in X/Y/Z direction
each
Shock resistance
(destruction)
500 m/s2, three times in X/Y/Z direction each
Protective structure IP67
Materials Wetted part Detecting unit: SUS304, O-ring: FKM
Other than wetted part Head: PPSU, display unit: PES, button: PBT, chassis: SUS304L, nut:
SUS304
Weight Approx. 190 g
Accessories • User's manual (Japanese, English, and Chinese), one each
• Compliance sheet
• Index list

*1. Even instantaneous pressure fluctuation such as water hammer must be within the permissible pressure.
*2. Flow monitoring performance is defined by the values measured under the following conditions using OMRON's factory
     adjustment equipment.
     • OMRON's factory adjustment equipment: Pipe diameter 20A, straight pipe length 900 mm or more, recommended
        pipe joint (KITZ's PTZ-20A), dedicated adapter (E8FC-YA-R20A)
     • The long side of the chassis holding unit is installed toward the upstream side of the piping. Refer to Piping method
        on Catalog.
     • Measured normal temperature water (approx. 23°C) under normal temperature environment (approx. 23°C)
    Since each performance depends on the water level of the piping, there is a possibility that the measured value may
    deviate depending on the condition that the inside of the piping including the pipe joint is not filled with water, fluid
    pulsation, and clogging of the piping.
*3. Cutting to zero is the function outputting the flow rate less than the minimum rated flow rate as zero.
*4. The accuracy of flow rate monitoring when the pipe diameter is 20A. For piping sizes 10A, 15A and 25A, refer to
      Characteristic Data on Catalog in the catalog before use.
*5. The ambient temperature characteristics are defined by the values measured under the following conditions.
     • Pipe diameter 20A, Straight pipe length: 900 mm or more, recommended pipe joint (KITZ's PTZ-20A), dedicated
       adapter (E8FC-YA-R20A)
     • The long side of the chassis holding unit is installed toward the upstream side of the piping. Refer to Piping method
       on Catalog.
     • Water at room temperature (approx. 23°C) was measured at a flow rate of 30 l/min.
*6. The performance of temperature monitoring is specified by the values measured under the following conditions.
     • Pipe diameter 20 A, recommended pipe joint (KITZ's PTZ-20A), dedicated adapter (E8FC-YA-R20A)
     • The long side of the chassis holding unit is installed toward the upstream side of the piping. Refer to Piping method
       on Catalog.
     • In a normal temperature environment (approx. 23°C)
*7. If the pipe temperature exceeds 70°C, do not contact any cables with the pipe.
*8. Do not connect outputs CH1 (pin 4) or/and CH2 (pin 2) with the IO-Link master unit in analog current output mode.
      Otherwise the IO-Link master might fail.