Magnetized Modular Rotary Encoder

ERM 100 Series
The ERM incremental modular rotary encoders consist of a magnetized circumferential scale drum and a scanning unit with magnetoresistive sensor. These encoders are available for diameters of 80 and 180 mm:
Drum inside diameter D1 180 mm 80 mm
Outside diameter D2 257.5 mm 128.75 mm
Line count 2048 1024
Permissible speed (mech.) 8000 rpm 18000 rpm

Typical applications include machines and systems with large hollow-shaft diameters where protection from dust and splashwater is required.

  ERM 120 ERM 180
Incremental signals  TTL  1 VPP
Power supply 5V
Cutoff frequency (-3 dB) >= 200 kHz
Scanning frequency Max. 300 kHz