Panasonic Industry / Automation Controls
Panasonic Industry / Automation Controls

Pipe-mountable Liquid Level Detection Sensor EX-F1

  • Basic Information

  • Applications

  • Order guide

  • Specifications

  • Dimensions

  • Circuit/ Wiring

  • Cautions For Use

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Basic Information

Reliable liquid level detection with amplifier built-in low-priced sensor

CE,UKCA Approved

CE : EMC Directive
UKCA : EMC Regulations

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Applications

Detecting liquid level in a tank

Detecting liquid level in a tank

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Order guide

TypeAppearanceSensing objectApplicable pipe diameterModel No.
Amplifier built-in
pipe-mountable
 

Liquid
(Note 1)
Outer dia. ø6 to ø13 mm ø0.236 to ø0.512 in transparent pipe
[PFA (Fluorine resin) or equivalently transparent pipe, wall thickness 1 mm 0.039 in (Note 2)]
EX-F1
5 m 16.404 ft
cable length type
EX-F1-C5

Note 1:Unclear or highly viscous liquid may not be detected stably.

Note 2:Do not use the sensor with pipes other than the above specified.

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Specifications

TypeAmplifier built-in, Pipe-mountable
Model No.EX-F1
CE marking directive complianceEMC Directive, RoHS Directive
Sensing objectLiquid (Note 2)
Applicable pipe diameterOuter dia. ø6 to ø13 mm ø0.236 to ø0.512 in transparent resin pipe
[PFA (Fluorine resin) or equivalently transparent pipe, wall thickness 1 mm 0.039 in ] (Note 3)
Supply voltage / Current consumption12 to 24 V DC ± 10 % Ripple P-P 10 % or less / 30 mA or less
OutputNPN open-collector transistor
- Maximum sink current: 100 mA
- Applied voltage: 30 V DC or less (between output and 0 V)
- Residual voltage: 1 V or less (at 100 mA sink current)
0.4 V or less (at 16 mA sink current)
 Utilization categoryDC-12 or DC-13
Output operationSwitchable either Light-ON (Liquid-absent-ON) or Dark-ON (Liquid-present-ON)
Short-circuit protectionIncorporated
Response time2 ms or less
Operation indicatorRed LED (lights up when the output is ON)
Pollution degree3 (Industrial environment)
Ambient temperature (Note 4)-10 to +55 ℃ +14 to +131 ℉ (No dew condensation or icing allowed), Storage: -20 to +70 ℃ -4 to +158 ℉
Ambient humidity / Ambient illuminance35 to 85 % RH, Storage: 35 to 85 % RH / lncandescent light: 3,000 lx or less at the light-receiving face
Voltage withstandability1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure
Vibration resistance10 to 150 Hz frequency, 0.75 mm 0.030 in double amplitude in X, Y and Z directions for two hours each
Shock resistance100 m/s2 acceleration (10 G approx.) in X, Y and Z directions three times each
Emitting elementInfrared LED (modulated)
MaterialEnclosure: Polycarbonate, Tying band: Nylon, Anti-slip tube: Silicone
Cable0.1 mm2 3-core cabtyre cable, 1 m 3.281 ft long
Cable extensionExtension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable.
WeightNet weight: 15 g approx., Gross weight: 60 g approx.
AccessoriesTying band: 2 pcs., Anti-slip tube: 2 pcs.

Note 1:Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +20 ℃ +68 ℉.

Note 2:Unclear or highly viscous liquid may not be detected stably.

Note 3:Do not use the sensor with pipes other than the above specified.

Note 4:Liquid being detected should also be kept within the rated ambient temperature range.

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Dimensions

  • Unit: mm in

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I/O Circuit and Wiring diagrams

I/O circuit diagram

I/O circuit diagram

Symbols・・・

D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: NPN output transistor

Wiring diagram

Wiring diagram

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Cautions For Use

  • Never use this product as a sensing device for personnel protection.
  • In case of using sensing devices for personnel protection, use products which meet laws and standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country.

Mounting

  • Mount the sensor on a pipe with the attached tying bands and anti-slip tubes as shown in the figure below. Make sure that the release lever is retracted (position as in the figure) before mounting. Fasten two tying bands, as shown, and cut off the excess portions.

Mounting

  • If other tying bands are to be used, the dimension A shown in the figure below should be 2.5 mm 0.098 in or less.

tying bands

Selecting output operation

  • Either Light-ON (Liquid-absent-ON) or Dark-ON (Liquidpresent- ON) can be selected with the operation mode switch according to your application.

Selecting output operation

  • The indicator operation and the output operation are different with the setting of the operation mode switch as given in the table below.

The indicator operation and the output operation

: Lights up

: Lights off

MODESensing conditionOperation indicatorOutput operation
Light-ON
(Liquid-absent-ON)
Liquid-present

OFF
Liquid-absent

ON
Dark-ON
(Liquid-present-ON)
Liquid-present

ON
Liquid-absent

OFF

Others

  • Do not use during the initial transient time (50 ms) after the power supply is switched on.
  • Do not use this sensor with a pipe which is not transparent.
  • Unclear or highly viscous liquid may not be detected.
  • Fit the sensor to the pipe securely, otherwise the operation may be erroneous.
  • Take care that no dew condenses on the pipe’s sensing surface or the pipe’s inside wall and that no bubble attaches on the pipe’s inside wall, since it can affect the operation. If a liquid drop flows down across the sensing point or an air bubble sticks on the wall at the sensing point, the operation may be erroneous. Make sure that no bubble arises in the liquid, and that no dew or liquid drop is present on either surface of the pipe wall.
  • EX-F1 is not water-proof or chemical-resistant. Installation should be avoided at any place where it could come in direct contact with water or chemicals.

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