INSTRUCTION MANUAL
Optical Bubble Sensor BE-A Series
MJEC-BEA No.0056-04V
Thank you very much for purchasing Panasonic prod-
ucts. Please read this Instruction Manual carefully and
thoroughly for the correct and optimum use of this prod-
uct. Kindly keep this manual in a convenient place for
quick reference.
WARNING
●
Never use this product as a sensing device for per-
sonnel protection.
●
In case of using sensing devices for personnel
protection, use products which meet laws and stan-
dards, such as OSHA, ANSI or IEC etc., for person-
nel protection applicable in each region or country.
1
COMPLIANT STANDARDS / REGULATIONS
●
This product complies with the following standards
and regulations:
<EU Directives>
EMC Directives
2
PART DESCRIPTION
Operation indicator (Orange)
Operation indicator (Orange)
3
MOUNTING
Product Mounting
●
When securing the main body with
screws, use M3 screws with tight-
ening torque of 0.5N·m or less.
●
Use plain washers of small round
type (ø6mm).
●
Please prepare M3 screws and
spring washers, plain washers
separately.
M3 screw
Plain washer
Spring washer
Mounting the ø2 / ø3 Tube
●
When mounting a ø2 tube
(PFA or equivalent) on
B E - A 2 0 1 □
o r ø 3 t u b e
(PFA or equivalent) on
BE-A301□
, push the tube in
place as shown on the right.
ø2 / ø3 tube (PFA or equivalent)
Push in
Mounting the ø4 Tube
●
When mounting a ø4 tube
(soft PVC or equivalent) on
BE-A401□
, pull the tube as
you push it in place.
●
Do not use hard tubes.
Insert
Pull
Pull
ø4 tube (Soft PVC
or equivalent)
●
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
ø3 tube type
ø4 tube type
Model
No.
NPN output
BE-A201
BE-A301
BE-A401
PNP output
BE-A201P
BE-A301P
BE-A401P
Sensing objects (Note 1)
Liquid
Applicable tube diameter
(O.D. × I.D.) (Note 2)
ø2.0mm × ø1.0mm ø3.0mm × ø2.0mm
ø1/8in × ø1/16in
ø4.0mm × ø2.4mm
ø5/32in × ø3/32in
Applicable tube type
(Note 2)
Transparent resin tube
(PFA or equivalent)
Transparent resin tube
(Soft PVC or equivalent)
Sensing air gap (Note 3)
0.8mm or more
Supply voltage
5 to 24V DC±10% Ripple P-P 10% or less
Current consumption
15mA or less
Output
<NPN out put type>
NPN open-collector transistor
• Maximum sink current: 50mA
•
Applied voltage: 30V or less
(between output and 0V)
•
Residual voltage:
2V or less (at 50mA sink current)
1V or less (at 16mA sink current)
<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)
Output operation
Two output types are provided:
On when liquid is absent / On when liquid is present
Short-circuit protection
Incorporated
Response
time
(Note 4)
Bubble
detected
30μs or less
20μs or less
Liquid
detected
80μs or less
80μs or less
Ambient temperature
(Note 5)
-25 to +55°C (No dew condensation or icing allowed)
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
Infrared LED
(Peak emission wavelength: 855nm, unmodulated)
Material
Enclosure: PBT, Tube securing part: Polyamide
Indicator: Polycarbonate
Cable
0.09mm
2
4-core cabtyre cable, 1m long
Weight (Main body only)
Approx. 15g
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.
Liquid
Tube
Air gap
Air bubble
Liquid
Air
Water drop
Air bubble
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.
●
Be sure to mount the tube in close contact with the sens-
ing element. Otherwise, the product may malfunction. If
the tube is brought up or slips off, take additional mea-
sures such as attaching an auxiliary fitting to fix the tube.
● Please prepare the auxiliary fitting for
fixing the tube separately.
Fixing
Fixing
4
I/O CIRCUIT DIAGRAM
NPN output type
Main circuit
(Brown) +V
(Black) Output 1
(White) Output 2
(Blue) 0V
Load
Load
+
5 to 24V DC
±10%
-
PNP output type
Main circuit
(Brown) +V
(Black) Output 1
(White) Output 2
(Blue) 0V
Load
Load
+
5 to 24V DC
±10%
-
<Operation indicator and output operation>
Sensing condition
Operation indicator
(Orange)
Output
Output 1 Output 2
Liquid is absent (bubble)
ON
ON
OFF
Liquid is present
OFF
OFF
ON
5
CAUTIONS
●
This product has been developed / produced for in-
dustrial use only.
●
Make sure to carry out wiring in the power supply OFF condition.
● Take care that if a voltage exceeding the rated range
is applied, or if an AC power supply is directly con-
nected, the product may get burnt or damaged.
●
Take care that short circuit of the load or wrong wiring
may burn or damage the product.
●
Do not run the wires together with high-voltage lines
or power lines, or put them in the same raceway. This
can cause malfunction due to induction.
●
Verify that the supply voltage variation is within the rating.
●
If power is supplied from a commercial switching reg-
ulator, ensure that the frame ground (F.G.) terminal of
the power supply is connected to an actual ground.
●
In case noise generating equipment (switching regu-
lator, inverter motor, etc.) is used in the vicinity of the
mounting part of this product, connect the frame ground
(F.G.) terminal of the equipment to an actual ground.
●
Do not use during the initial transient time (50ms) af-
ter the power supply is switched ON.
●
Take care that the sensor is not directly exposed to fluorescent
lamp from a rapid-starter lamp, a high frequency lighting de-
vice or sunlight etc., as it may affect the sensing performance.
● Extension up to total 100m (each emitter and receiver
of thru-beam type), or less, is possible with 0.3mm
2
,
or more of conductor area cable. However, in order to
reduce noise, make the wiring as short as possible.
7
DIMENSIONS (Unit: mm)
●
BE-A201□
8.3
14.2
2.5
15.5
16.5
3
7
3.5
9
20
10
2
ø5.2
Beam axis
2 X ø3.5
mounting holes
ø2.5 cable, 1m
Tube securing part
●
BE-A301□
8.3
14.7
2.5
ø5.2
15.5
16.5
3
7
3.5
9
20
10
2
Beam axis
2 X ø3.5
mounting holes
ø2.5 cable, 1m
Tube securing part
●
BE-A401□
8.3
14.8
2.5
ø5.2
15.5
16.5
3
7
3.5
9
20
10
2
Beam axis
2 X ø3.5
mounting holes
ø2.5 cable, 1m
Tube securing part
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© Panasonic Industrial Devices SUNX Co., Ltd. 2016
PRINTED IN JAPAN
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