BE-A optical bubble sensor
General
The BE-A series features optical bubble sensors in a miniaturized shape that are suitable for many applications. The series comprises three different models for different tube diameters (2mm, 3mm, and 4mm). Mounting the sensors is very simple and does not require any tools: Simply push the tube into the opening in the sensor. The tubes fit perfectly without the sensor obstructing the flow rate. In addition, the sensors are compatible with tubes in inch size.
Characteristics:
- Hassle-free one-touch attachment without using tools
- Highly accurate detection of air gaps of min. 0.8mm
- 20µs response time
- Built-in amplifier
- Installation possible even when space is limited (staggered or parallel mounting)
- Suitable for transparent resin tubes made from PFA or similar material
Specifications
| NPN output | BE-A201 | BE-A301 | BE-A401 | |
|---|---|---|---|---|
| PNP output | BE-A201P | BE-A301P | BE-A401P | |
| Sensor type | For a tube diameter of ø2mm | For a tube diameter of ø3mm | For a tube diameter of ø4mm | |
| Detectable air gap | Min. 0.8mm | |||
| Object to be sensed | Liquid | |||
| Applicable tube diameter (outer x inner diameter) | ø2mm x ø1mm | ø3mm x ø2mm | ø4mm x ø2.4mm | |
| Applicable tube type | Transparent resin tube (equivalent to PFA) | Transparent resin tube (equivalent to flexible PVC) | ||
| Supply voltage | 5 to 24V, DC ±10% including ripple max. 10% (P-P) | |||
| Current consumption | Max. 15mA | |||
| Output (equipped with 2 outputs) | NPN open collector transistor
PNP open-collector transistor
|
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| Output operation | Switchable. Either Liquid-absent-ON or Liquid-present-ON | |||
| Short-circuit protection | Built in | |||
| Response time when detecting bubbles | Max. 30μs | Max. 20μs | ||
| Response time when detecting liquids | Max. 80μs | |||
| Operation indicator | Orange LED (lights up when there is no liquid) | |||
| Protection circuits | Power supply reverse polarity protection, output reverse polarity protection | |||
| Degree of protection | IP40 (IEC) | |||
| Ambient temperature | -25 to +55°C (no dew condensation or icing allowed), storage: -30 to +80°C (the specified temperature ranges also apply to the liquid to be detected) | |||
| Ambient humidity | 35 to 85% RH, at storage: 35 to 85% RH | |||
| Ambient light | Fluorescent light: 1,000ℓx at the light-receiving side | |||
| Voltage withstandability | 1,000V, AC for one min. between all supply terminals connected together and enclosure | |||
| Insulation resistance | Min. 20MΩ with 250V DC megger between all supply terminals connected together and enclosure | |||
| Vibration resistance | 10 to 150Hz frequency, 0.75mm double amplitude in X, Y and Z directions for two hours each (maximum acceleration 49m/s2) | |||
| Shock resistance | 100m/s2 acceleration in X, Y, and Z directions three times each | |||
| Light emitting element | Infrared LED (peak emission wavelength: 855nm, non-modulated) | |||
| Material | Enclosure: PBT, tube holder: Polyamide, indicator: Polycarbonate | |||
| Cable | 0.09mm2 4-core cab tire cable, 1m | |||
| Cable extension | Extension up to a total length of 100m is possible using a cable with a diameter of min. 0.3mm2. | |||
| Clamping torque | Max. 0.5N•m | |||
| Weight | Net weight: approx. 15g, gross weight: approx. 25g | |||
| Conformity | Compliant with EMC Directive and RoHS Directive | |||
Order guide
| Type | Model number | Output | Output operation |
|---|---|---|---|
| For a tube diameter of ø2mm | BE-A201 | NPN open collector transistor | Switchable. Either Liquid-absent-ON or Liquid-present-ON |
| BE-A201P | PNP open-collector transistor | ||
| For a tube diameter of ø3mm | BE-A301 | NPN open collector transistor | |
| BE-A301P | PNP open-collector transistor | ||
| For a tube diameter of ø4mm | BE-A401 | NPN open collector transistor | |
| BE-A401P | PNP open-collector transistor |
Applications
- Detecting air bubbles before dispensing liquids
- Liquid level and bubble detection for the laboratory and medical technology industry
Downloads
| Name | File type | Size | Date | Language |
|---|---|---|---|---|
| Data sheet BE-A (JP) | Data sheet | 3 MB | 23.03.2022 | English |
| Datenblatt BE-A | Data sheet | 666 KB | 23.03.2022 | German |
| Data sheet BE-A | Data sheet | 653 KB | 23.03.2022 | English |
| BE-A 3D Data | CAD | 2 MB | 26.07.2023 | Other |
| BE-A 2D Data | CAD | 43 KB | 26.07.2023 | Other |
| Raccolta Applicazioni Sensori | Data sheet | 24 KB | 23.03.2022 | Italian |
| Sensors & Ionizer Solutions Catalog for Laboratory Automation | Catalog | 711 KB | 01.05.2024 | English |
| Solutions for Liquid Dispensing Processes. For Clinical Diagnostics Instruments. | Catalog | 2 MB | 01.05.2024 | English |
| Optical Bubble Sensor BE-A Series Instruction Manual, MJEC-BEA | Manual | 1 MB | 29.10.2024 | English,Japanese |
| Übersicht Topseller Automatisierungstechnik, 6215eude | Catalog, Shortform | 3 MB | 02.05.2024 | German |
| Top seller - Automation products, 6215euen | Catalog, Shortform | 3 MB | 01.05.2024 | English |
| Sensor Selection Guide for Packaging Industry | Catalog | 15 MB | 12.07.2022 | English |
| Brochure "Focus Automazione" | Catalog, Shortform | 8 MB | 11.11.2024 | Italian |
| Data sheet BE-AH | Data sheet | 4 MB | 12.03.2024 | English |
| BE-AH 3D Data | CAD | 191 KB | 26.07.2023 | English |
