Precizika Metrology Precision Sealed Linear Encoder Model L37

The precision sealed linear encoder L37 is used to convert linear displacements of key machine components into electrical signals containing information about the value and direction of the displacements.

The encoder consists of a glass scale installed into a rigid hollow housing and a ball-bearing-guided reading head. To be able to work in harsh environments (cooling liquid, lubricants and chips), the encoder has two rows of sealing lips. Filtered air can be supplied into the housing of the encoder for extra protection from dust. The photoelectric unit of the reading head generates sinusoidal micro-current or square-wave output signals. 
Characteristic feature of encoder is a rigid housing that provides better resistance to vibration and higher protection grade due to two pairs of sealing lips.

L37 is fixed to the mounting surface at the midpoint. Reproducible thermal behavior is permitted by flexible fastening elements.

Reference mark can be selected by magnet, which moves in horizontal groove on the front side of encoder (optional).

Three versions of output signals are available:

- L37-А - sinusoidal signals, with amplitude approx. 11 μApp, require an external subdividing electronics.
- L37-АV- sinusoidal signals, with amplitude approx. 1 Vpp, require an external subdividing electronics.
- L37-F - square-wave signals, type TTL or HTL (standard RS422) with integrated subdividing electronics for interpolation x1, x2, x5, x10, x25, x50.