The modular incremental quadrature rotary encoders are a breakthrough in hazardous duty encoders to fit large shaft applications. They are ATEX/IECEx and cULus approved and offer incredibly reliable no-bearing construction!
Our Magnetic Encoder Sensors use resistors that are sensitive to magnetic fields. When a rotor with magnetic poles is sensed, a sine wave is generated which is then converted to a square wave. This pick-up is more sensitive and thus can operate from 2 to 8192 PPR depending on the model being used. They require a power supply which permits operation down to zero speed and can drive cable lengths up to 2000 feet.
Why take a chance with weak optical encoders on your drilling rig? Our rugged magnetic sensor and solid metal rotor technology. Our shatterproof, moisture proof systems ensure your application has maximum uptime. The hollow shaft (tethered) models offer direct mounting on shafts from 1" to 1 1/8", without flanges, reducers, couplings, or other hardware. No rework is needed; just mount the encoder directly on the shaft, and secure the tether arm. The heavy duty bearings withstand runout and vibration that destroy lesser encoders.
We believe explosion protected encoders should also be ready to withstand the rough drilling environment.