Omron E3Z-B61 2M Compact Photoelectric Sensor for Transparent Objects

USD 35.65

Compact retro-reflective sensor designed for transparent objects with an 80–500 mm sensing range. Features NPN output, a 660 nm red LED, and IP67 protection for reliable glass and PET detection.

SKU Omron-E3Z-B61 2M Category
Photoelectric Sensors

Omron E3Z-B61 2M Compact Photoelectric Sensor for Transparent Objects

Model Identifier E3Z-B61 2M
Official Part Number E3Z-B61 2M
GTIN Standard NA

Technical Overview

The Omron E3Z-B61 2M is a compact retro-reflective photoelectric sensor meticulously engineered for the detection of transparent objects, such as clear PET bottles and glass vials. Operating without Mirror Surface Rejection (M.S.R.) and featuring a tuned optical amplifier, it guarantees highly stable detection across a sensing distance of 80 mm to 500 mm when used with the E39-R1S reflector. Equipped with a high-visibility 660 nm red LED light source, an NPN open-collector output, and a rugged IP67-rated polybutylene terephthalate (PBT) housing, the E3Z-B61 2M provides rapid 1 ms response times critical for high-speed automated lines. It comes pre-wired with a 2-meter cable and features built-in protection against reverse polarity and short circuits, making it an optimal sensing solution for demanding packaging, food and beverage, and pharmaceutical industries.

Key Features

  • Retro-reflective sensing without M.S.R. function tailored for transparent object detection.
  • High-speed 1 ms response time suitable for rapid conveyor and assembly systems.
  • Switchable Light-ON and Dark-ON operation modes for integration flexibility.
  • Durable, IP67-rated PBT rectangular housing provides high resistance against dust and water.
  • Bright 660 nm red LED light source simplifies visual alignment during installation.
  • Pre-wired with a 2-meter integrated cable for immediate deployment out of the box.

12 to 24 VDC power supply voltage with a low maximum current consumption of 30 mA.

Technical Specification Matrix

ParameterValue
Sensing MethodRetro-reflective without M.S.R
Sensing Distance80 to 500 mm (when using E39-R1S reflector)
Output ConfigurationNPN Open Collector
Light SourceRed LED (660 nm)
Power Supply Voltage12 to 24 VDC
Current Consumption30 mA max.
Response Time1 ms max. (operate or reset)
Connection MethodPre-wired, 2-meter cable
Operation ModeLight-ON / Dark-ON Selectable
Degree of ProtectionIP67
Housing MaterialPolybutylene terephthalate (PBT)

Industrial Applications

1. High-Speed Beverage Bottling Lines

Detecting clear PET and glass bottles as they pass along rapid conveyors to trigger downstream filling, capping, or labeling stations.

Problem Solved

Standard photoelectric sensors frequently fail or false-trigger when light passes directly through transparent materials. The lack of M.S.R. and tuned optical amplifier resolves this, enabling accurate counting and presence detection of clear bottles.

Transparent object detectionWithout M.S.R.1 ms response timeRetro-reflective

2. Pharmaceutical Glass Vial Inspection

Confirming the presence of small transparent glass vials inside automated packaging matrices before executing secondary packaging and sealing processes.

Problem Solved

Effectively senses reflective and transparent cylindrical glass without relying on mirror surface rejection, ensuring that automated systems recognize empty slots and reject unpopulated trays.

NPN open collector80-500 mm sensing distanceRed LED 660 nmIP67

3. Clear Film Packaging Feed Monitoring

Monitoring the unbroken feed of clear plastic shrink-wrap or blister packaging webs entering into thermoforming or sealing machines.

Problem Solved

Accurately detects thin, highly transparent film webs to prevent jamming or missed seals, while remaining durable enough to withstand wash-down or dusty packaging environments.

Light-ON/Dark-ON12-24 VDCPolybutylene terephthalate housingPre-wired 2M
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