USD 25.44
Omron E3ZG-R81-S 2M is a PNP retro-reflective sensor with 4 m range using E39-R1S, 2 m cable, MSR and IP65 protection.
The Omron E3ZG-R81-S 2M is a pre-wired retro-reflective photoelectric sensor with mirror surface rejection (MSR) and PNP output. Its sensing distance is up to 4 m with the separately ordered E39-R1S reflector, or 3 m with E39-R1; the minimum sensor-to-reflector spacing is 100 mm. The sensor uses a 660 nm red LED, 2 m cable, 12–24 VDC supply and 1 ms response, with IEC IP65 protection. Omron’s datasheet confirms the model specifications; current supply status is unconfirmed.
An PNP MSR retro-reflective sensor with up to 4 m range using an E39-R1S reflector and IP65 protection.
| Parameter | Value |
|---|---|
| Sensor type | Retro-reflective photoelectric sensor with MSR function; reflector sold separately |
| Sensing distance | 4 m with E39-R1S or 3 m with E39-R1; 100 mm minimum reflector spacing |
| Light source | Red LED, 660 nm |
| Output | PNP open collector; Light-ON/Dark-ON selectable; 100 mA max. load |
| Response time | 1 ms maximum operate or reset |
| Power supply | 12–24 VDC ±10%; 10% maximum peak-to-peak ripple |
| Current consumption | 30 mA maximum |
| Connection | Pre-wired 2 m cable; three conductors |
| Operating temperature | −25 to 55 °C; no icing or condensation |
| Storage temperature | −40 to 70 °C; no icing or condensation |
| Relative humidity | Operating 35–85%; storage 35–95%, non-condensing |
| IP rating | IEC IP65 |
| Housing material | PBT case; modified-polyarylate lens |
| Physical Weight (kg) | Approx. 0.065 (packed weight) |
| Dimensions L x W x H (cm) | 3.1 x 2.0 x 1.08 (sensor; cable excluded) |
Engineering suggestions require suitability checks for your installation.
A conveyor may need a sensor signal when a package interrupts a fixed optical path.
The R61-S can be paired with an E39-R1S reflector for up to 4 m rated range; mount the reflector at the specified spacing and confirm the target does not create unwanted reflections.
A packaging line may need to detect cases crossing a defined point while rejecting reflected light from the reflector.
MSR operation helps distinguish the reflector return; validate performance for transparent or highly reflective packaging and install the required reflector separately.
