User Manual

ManualsBrandsPANASONIC ManualsSensors1 pc(s) Operating voltage (range): 5 - 24 Vdc (L x W x H) 20 x 15.5 x 16.5 mm

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.

COMPLIANT STANDARDS / REGULATIONS

● This product complies with the following standards

and regulations:

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

BE-A201□

or ø3 tube

(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

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 inammable 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 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 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

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 specications 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 dropAir 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 tting to x the tube.

● Please prepare the auxiliary fitting for

xing the tube separately.

Fixing

4 I/O CIRCUIT DIAGRAM

NPN output type

Main circuit

(Brown) +V

(Black) Output 1

(White) Output 2

(Blue) 0V

Load

5 to 24V DC

±10%

PNP output type

Main circuit

(Brown) +V

(Black) Output 1

(White) Output 2

(Blue) 0V

Load

5 to 24V DC

±10%

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 uorescent

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

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

3.59

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

3.59

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

3.59

Beam axis

2 X ø3.5

mounting holes

ø2.5 cable, 1m

Tube securing part

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