LIR-DA13A

Absolute linear encoder
  Vendor  SKBIS
  Status  Out of production
  Warranty  3 years

LIR-DA13A is out of production. Try model LIR-DA13S.01 instead.

Optoelectronic absolute encoder with a measuring rod.

The device converts the movement of the controlled object into a digital code that corresponds to the length of the movement relative to the starting point. For an absolute encoder, the code value is a linear discrete function of the rod position. Therefore, in case of failures caused by the electrical interference, exceeding the permissible motion speed, etc., the code value is restored for the same position after the specified factors are eliminated.

Structurally, it is a spring-loaded linear guide with a glass code scale, to which a rod with a corundum tip with a radius of 14 mm is rigidly connected.

Conversion range: from -5 to 5 mm.
Rod stroke: ≥10.5 mm.
Readout resolution: 0.5 or 1 µm.
Bit depth: 15 bits.
Selectable data transfer protocols: SSI (RS422), Modbus ASCII, Modbus RTU.
Permissible error: ±2.5 µm at a nominal temperature of 20°C.

LIR-DA13A is normally used as part of bench and testing equipment for measuring or monitoring dimensions and deviations from a specified geometric shape of a part, as well as the relative position of surfaces.

Scale

Glass scale with position code

Conversion range from -5 mm to 5 mm
Stroke 10.5 mm
Weight (without cable)

~0,25 kg

Maximum measurement speed 30 m/min
Measuring force ≤ 1.5 N
Allowable radial load on the rod ≤ 0.3 N
Operating temperature 0...+40°C
Vibration acceleration (55 to 2000 Hz) ≤ 50 m/s²
Protection EN 60 529 IP50
Supply voltage +5 V
Current consumption

≤ 200 mA

Data transfer Protocol
Resolution
Number of digits 15
Cable length
Cable connector
Connector DB9. Serial data output:
Assignment Clock Data Clock Data Power Shield
Pin number 2 6 3 7 4 8 5 9 1
Flying leads. Serial data output:
Assignment Clock Data Clock Data Power 0V (GND) Sense Up Sense 0V
Cable 4 twisted pair Green Red Yellow Blue Brown White Rose Grey
File Size Published
Datasheet 3 Dec 2025
Описание протокола Modbus ASCII.pdf370.85 KB 7 Feb 2024
Описание протокола Modbus RTU.pdf382.69 KB 7 Feb 2024

Accessories:

DB9
Cable for absolute encoders