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● Make sure that stress by forcible bend or pulling is
not applied to the sensor cable joint.
● This product is suitable for indoor use only.
● Avoid dust, dirt, and steam.
● Take care that the product does not come in contact
with oil, grease, organic solvents such as thinner,
etc., strong acid or alkaline.
● This product cannot be used in an environment con-
taining inflammable or explosive gasses.
● Never disassemble or modify the product.
● Do not use this product for opaque tubes.
● This product is not resistant to water, oil, or chemicals.
Avoid locations with a risk of spilling water, oil, or chemicals.
6
SPECIFICATIONS
Type
ø2 tube type
NPN output
BE-A201
Model
No.
PNP output
BE-A201P
Sensing objects (Note 1)
Applicable tube diameter
ø2.0mm × ø1.0mm
(O.D. × I.D.) (Note 2)
Applicable tube type
Transparent resin tube
(Note 2)
(PFA or equivalent)
Sensing air gap (Note 3)
Supply voltage
5 to 24V DC±10% Ripple P-P 10% or less
Current consumption
<NPN out put type>
NPN open-collector transistor
• Maximum sink current: 50mA
• Applied voltage: 30V or less
Output
(between output and 0V)
• Residual voltage:
2V or less (at 50mA sink current)
1V or less (at 16mA sink current)
Two output types are provided:
Output operation
On when liquid is absent / On when liquid is present
Short-circuit protection
Bubble
30μs or less
Response
detected
time
Liquid
(Note 4)
80μs or less
detected
Ambient temperature
-25 to +55°C (No dew condensation or icing allowed)
(Note 5)
Storage: -30 to +80°C
Ambient humidity
35 to 85% RH, Storage: 35 to 85% RH
Ambient illuminance
Fluorescent light: 1,000ℓx or less at the light-receiving surface
Emitting element
(Peak emission wavelength: 855nm, unmodulated)
Enclosure: PBT, Tube securing part: Polyamide
Material
Indicator: Polycarbonate
Cable
0.09mm
Weight (Main body only)
Notes: 1) Sensing is affected by dirt or residues adhered to the inner wall of the
tube. Please maintain the tube regularly.
2) When using a tube out of specifications or it doesn't have a smooth
surface, please test sensing on the actual machine before use.
3) Sensing air gap refers to the width of an air bubble formed in the
entire area of the inner diameter of the tube. Please note that this
product cannot sense very small air bubbles or water drops.
Tube
Air bubble
Air gap
Liquid
4) The response time is a typical example for applicable tubes. The time
will vary depending on the dimensions, light transmittance, surface
state, and other conditions of the tube used.
5) The temperature of sensing liquid must be within the ambient tem-
perature range as well.
Ramco National
ø3 tube type
ø4 tube type
BE-A301
BE-A401
BE-A301P
BE-A401P
Liquid
ø3.0mm × ø2.0mm
ø4.0mm × ø2.4mm
ø1/8in × ø1/16in
ø5/32in × ø3/32in
Transparent resin tube
(Soft PVC or equivalent)
0.8mm or more
15mA or less
<PNP out put type>
PNP open-collector transistor
• Maximum source current: 50mA
• Applied voltage: 30V or less
(between output and +V)
• Residual voltage:
2V or less (at 50mA source current)
1V or less (at 16mA source current)
Incorporated
20μs or less
80μs or less
Infrared LED
2
4-core cabtyre cable, 1m long
Approx. 15g
Liquid
Air
Air bubble
Water drop
www.PanasonicSensors.com
7
DIMENSIONS (Unit: mm)
● B E-A201□
Tube securing part
15.5
2 X ø3.5
7
mounting holes
Beam axis
ø2.5 cable, 1m
● B E-A301□
Tube securing part
15.5
2 X ø3.5
7
mounting holes
Beam axis
ø2.5 cable, 1m
● B E-A401□
Tube securing part
15.5
2 X ø3.5
7
mounting holes
Beam axis
ø2.5 cable, 1m
http://panasonic.net/id/pidsx/global
Overseas Sales Division (Head Office)
2431-1 Ushiyama-cho, Kasugai-shi, Aichi, 486-0901, Japan
Phone: +81-568-33-7861 FAX: +81-568-33-8591
For sales network, please visit our website.
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
16.5
2.5
ø5.2
3
16.5
2.5
ø5.2
3
16.5
2.5
ø5.2
3
PRINTED IN JAPAN
1-800-280-6933
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