Keyence EH-290 Proximity Sensor Head

Keyence EH-290 Proximity Sensor Head

Product Intr3oduction

The Keyence EH-290 is a standard, non-shielded cylindrical sensor head built for metal detection. It senses ferrous metals with a stable range of 0 to 35 mm. Moreover, its maximum detecting distance reaches 70 mm, which supports flexible mounting. The F90 body and 3 m cable fit many industrial positions.

Technical Specifications

The EH-290 uses a standard target of iron at t=1 mm, sized 150 x 150 mm. Stable detecting range is 0 to 35 mm, while the maximum distance is 70 mm. Hysteresis stays at 0.2 mm, and repeatability is 0.075 mm. These values support precise position feedback.

Temperature characteristics show ±10% max deviation at 23 °C. This holds within a -10 to +60 °C window. Therefore, the head performs well in changing plant conditions.

Mechanical and Environmental Parameters

The enclosure carries an IP67 rating for dust and water resistance. Ambient temperature ranges from -10 to +60 °C without freezing. Relative humidity of 35 to 85% RH is acceptable without condensation. The unit weighs about 650 g including nuts and the 3 m cable.

Installation Guide

First, choose a mounting spot that keeps metal clear of the sensing face. Unshielded heads need extra space around the barrel. Next, secure the body with the supplied nuts on a firm bracket.

Then, align the face with the target path for consistent detection. After that, connect the 3 m cable to your amplifier or controller. Finally, test the output across the full 35 mm range before production.

Packaging List

• 1 x Keyence EH-290 Proximity Sensor Head

• 1 x Set of mounting nuts

• 1 x 3 m attached cable

Shipping

We ship worldwide by Fedex, UPS, and DHL. In-stock orders leave the warehouse the same day. Tracking details follow within 24 hours.

FAQ

1. What metals does the EH-290 detect?
It detects ferrous metals as standard. For nonferrous metals, check the characteristics table, since sensing distance drops.

2. What is the stable detecting range of the EH-290?
The stable range is 0 to 35 mm. The maximum detecting distance reaches 70 mm under standard conditions.

3. Is the Keyence EH-290 shielded or unshielded?
This model is unshielded. Therefore, keep metal away from the sides of the barrel during mounting.

4. What is the repeatability of this sensor head?
Repeatability is 0.075 mm. Hysteresis is 0.2 mm, which supports stable switching.

5. What protection rating does the EH-290 offer?
The head meets IP67. It resists dust and water splashes in typical factory environments.