1. Small part passage detection
Detect small opaque parts in a compact transfer or assembly mechanism.
Align the emitter and receiver across the path and verify target size and response at the selected range.
USD 100.25
Omron E3T-ST23 2M: through-beam sensor, 300 mm range, PNP, Light-ON, 2 m cable.
The Omron E3T-ST23 2M is an ultracompact through-beam photoelectric sensor set with a 300 mm rated sensing distance and red 650 nm light. This model provides PNP open-collector output and Light-ON operation. It uses a 2 m pre-wired cable, 12–24 V DC supply and IP67 enclosure.
Omron E3T-ST23 2M: through-beam sensor, 300 mm range, PNP, Light-ON, 2 m cable.
Ultracompact through-beam photoelectric sensor, 300 mm | PNP open-collector output
| Parameter | Value |
|---|---|
| Manufacturer | Omron |
| Product type | Ultracompact through-beam photoelectric sensor |
| Mounting | M2 |
| Sensing distance | 300 mm |
| Standard sensing object | Opaque object, 2 mm dia. min. for 1 m models; 3 mm dia. min. for 2 m models |
| Light source | 650 nm red LED |
| Output | PNP open collector |
| Maximum load current | 50 mA |
| Power supply | 12–24 V DC ±10% |
| Current consumption | 30 mA max. total (emitter 10 mA; receiver 20 mA) |
| Operation mode | Light-ON |
| Response time | 1 ms max. operate or reset |
| Protection | IEC IP67 |
| Connection | Pre-wired, 2 m |
| Housing | PBT |
| Operating temperature | −25 to 55°C |
| Operating humidity | 35–85% RH |
| Physical Weight (kg) | 0.040 (approx. 40 g packed) |
| Dimensions L x W x H (cm) | Overall dimensions not stated in the checked manufacturer source. |
Engineering suggestions require suitability checks for your installation.
Detect small opaque parts in a compact transfer or assembly mechanism.
Align the emitter and receiver across the path and verify target size and response at the selected range.
Provide a beam interruption signal to confirm a moving component or fixture position.
Choose Light-ON or Dark-ON to match the PLC input logic and validate with the installed machine sequence.