ISO 9001:2015
Modern means of measuring equipment

Magnetic linear sensor LM13 with DPI

Renishaw plc (Graet Britain)

LM13 c DPI
LM13 c DPI

LM13 c DPI is a non-contact high-speed linear magnetic encoder, designed for use with DPI resolution (the number of dots per inch). The system consists of a compact leakproof reading head that moves above the magnetic self-adhesive scale with a clearance of up to 1.5 mm and can have a measurement range up to 100 m.

LED indicator is built-in head for the correct position of the head and the serviceability of the sensor. The absence of rigid tolerances and special equipment for mounting the magnetic tape simplify the installation of the LM13. The reference mark can be pre-set on a magnetic scale or glued over the tape with a self-leveling device, which greatly simplifies the installation process.

LM13 sensors are manufactured with digital output and are supplied, for the convenience of customer selection, in the resolution range from 25600 to 100 dots per inch.

Designed for harsh environments, the all-rounder design of the LM13 linear displacement sensors allows operating in operating temperature ranges from -10 to +80 ° C and has a degree of protection - IP68, which are highly resistant to shock, vibration and pressure. The magnetic scale is resistant to chemicals used in various industries. Non-contact reading LM13 provides no friction and wear of the components of the measuring system, mechanical hysteresis, and also provides the necessary accuracy at high speeds and accelerations.

For situations in which it is necessary to easily dismantle the MS-scale, the track-system TRS is applied.


Built-in LED indicator for
head and sensor position
Measuring range, m: 50 (up to 100 m – by special order)
Resolution at digital outputs,
dots per inch:
from 25600 to 100
Max speed
for analog output, m/s:
Max speed
for digital output, m/s::
– 4,11 (for resolution 25600 dots per inch)
– 25 (for resolution 100 dots per inch)
Clearance between reading head
and magnetic scale, mm:
from 0,1 to 1,5
Repeatable: more precisely a unit of discreteness
Hysteresis, mkm: up to 3 (for clearance 0,5 mm)
Scale accuracy class, mkm / m: ± 20 and ± 40
System accuracy at 20 ° C, mkm: – ± 3,5 (at clearance height up to 0,7 mm)
– ± 7,5 (at clearance height up to 1 mm)
Supply voltage, V: from 4,7 to 7 (reverse polarity protection)
Current consumption (no load), mА: – up to 35 (for digital output)
– up to 50 (for analog output)
Output signals: – LM13IC - digital differential
– LM13AV - analog
Cable: flexible, with double screen
Mass, г: – reading head (with cable 1m, without connector) - 80
- cable (1 m) - 34
- magnetic scale (1 m) - 60
- protective foil (1 m) - 3.5
Temperature, °C: – process from – 10 to + 80
– storage from – 40 to + 85
Degree of protection: IP68

Additional information