The BE-A201 is an ultra-compact optical bubble sensor specifically designed for detecting air gaps or liquid presence in transparent Ø2mm PFA tubing. It features a one-touch attachment method that does not require tools or obstruct flow. The sensor uses a non-modulated infrared LED sensing source and provides high-speed response times of 30 microseconds or less. It includes a built-in amplifier and two selectable NPN open-collector outputs for liquid-absent-ON and liquid-present-ON logic.
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| Applicable Tube Diameter | 2.0 (O.D.) x 1.0 (I.D.)mm |
| Minimum Detectable Air Gap | 0.8mm |
| Supply Voltage | 5 to 24V DC |
| Response Time (Bubble Detection) | 30 or lessµs |
| Response Time (Liquid Detection) | 80 or lessµs |
| Current Consumption | 15 or lessmA |
| Output Type | NPN open-collector transistor |
| Operating Temperature | -25 to +55°C |
| Cable Length | 2m |
| IP Rating | IP40 |
| Ce | EMC Directive |
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