5 mm unshielded — where this lands on the machine
The Omron E2E-X5ME1 is an inductive proximity sensor from the E2E series, delivering a 5 mm sensing distance in an unshielded (non-flush) barrel. That 5 mm is the maximum range to a mild steel target; the unshielded construction means you need clearance around the barrel — no metal within the sensing field beyond the face. It's sized for detecting ferrous objects like gear teeth, cam lobes, or moving carriage stops where the target passes within a few millimeters. The nickel-plated brass housing and IP67 rating let it sit directly on a machining center or conveyor line where coolant spray and washdown are routine.
NPN-NO output — PLC input matching
Output is NPN-NO (normally-open, sinking) on a 3-wire cable. Supply voltage is 10 V DC.
Switching frequency and cable — response time matters
Rated at 400 Hz switching frequency, so it can detect targets passing at up to about 400 events per second — adequate for moderate-speed conveyor counting or rotary encoder replacement on slow shafts, but not for high-speed spindle indexing. The cable leads are pre-wired; no connector option on this variant, so factor in a junction box or terminal strip at the sensor location. The LED indicator on the rear gives local state confirmation during setup and troubleshooting.
Temperature range and enclosure — industrial duty
Rated for -40°C to 85°C operating temperature, so it handles cold warehouses, unheated outdoor conveyor sections, and proximity to hot machine surfaces without derating. The nickel-plated brass barrel resists corrosion from cutting fluids and mild chemicals. IP67 means the electronics are sealed against dust ingress and temporary immersion — fine for washdown environments, but not for continuous submersion.