4B Rotech Rotary Shaft Encoder – Aluminum

The 4B heavy-duty aluminum Rotech rotary shaft encoder protects equipment and personnel from dangerous underspeed and belt-slip conditions in extreme environments. It's also used for accurate speed control, direction-of-rotation detection, gate-position indication, and counting shaft revolutions.

An inductive sensor in the encoder body detects a steel rotor; for slow-speed or accurate position control, a photodiode reads slots on a steel disk, producing one pulse per rotor slot. Standard, high-temperature, and low-temperature versions are available.

Features

• Heavy-duty aluminum construction
• Underspeed, belt-slip, speed control, direction and position sensing
• Inductive + photodiode sensing for accurate low-speed output
• Standard, high-temp, and low-temp options

Versions

• RSE — standard
• RSEHT — high temp, up to +257°F / +125°C
• RSEHHT — high temp, up to +302°F / +150°C
• RSE4VBF-40 — low temp, down to −40°F / −40°C

Related: Mag-Con™ (MAG2000), Speed Relay (SR2V1-1), Tachometer (TACH3V5).