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HomeRotary unions, slip rings and sensorsLR series length and inclination sensors — up to 50 m

LR series length and inclination sensors — up to 50 m

LR sensors from 10 to 50 m depending on model. Outputs in volts, mA or CANbus; specify part numbers, measurement suffixes and mounting.

Conductors
12x · 3x · 4x
Cross-section
0.34 mm² · 0.5 mm² · 1.5 mm²
Voltage
24 V · 50 V
Material
Painted steel

LR series length and inclination sensors — up to 50 m | DEMAC

Technical specifications

Technical specifications

Product type

Length sensor

Application

Electrical cable, Mobile machinery and cranes

Rewind mechanism

Automatic (spring rewind)

Material

Painted steel

Voltage 24 V, 50 V
Current

1 A

Number of conductors 3x, 4x, 7x, 12x
Cross-section

0.5 mm², 0.34 mm², 1.5 mm²

Length

10 m, 12 m, 15 m, 20 m, 23 m, 30 m, 32 m, 40 m, 50 m

Length range Up to 15 m, 15 to 30 m, 30 to 50 m
ATEX zone

No

Maximum fluid temperature 60 °C, 80 °C
Technical drawings LR — one length sensor
LR — two length sensors
Separate drawings apply to different part numbers or configurations. Check the captions to select the matching drawing.

Key points

LR series: travel from 10 to 50 m depending on the cable. Ten measurement configurations, with one or two length sensors and, depending on suffix, inclination measurement. IP 65.

Part number / replacement

Record the full code and suffixes, quantity and existing connections; a nameplate photograph is useful. For a configuration, specify travel, required output and mounting.

Options

Outputs in volts, milliamperes or CANbus depending on suffix. The catalogue offers model/O layout and a -40 to +80 °C configuration.

Installation and operation

  • Maximum cable speed: 30 m/min; IP 65; standard temperature -20 to +60 °C, with a -40 to +80 °C configuration stated as available.
  • Stated electrical link limits: 50 V, 1 A. Sensor power supply is specified separately by suffix.
  • Left-hand version shown; alternative model/O layout. Check the mounting drawing and cable direction.
  • The sensor counts and accuracy figures in the table do not validate a safety function or compatibility with the controller.

For your enquiry

  • Full part number, suffixes and quantity; a nameplate photograph for a replacement.
  • Travel to be measured, available space and mounting.
  • Number of measurements, required output, power supply and connection diagram.
  • Accuracy and environmental requirements; presence of an electrical link and machine data.
  • Another series: LR120.
  • Another series: LR195.

The ten measurement configurations

Suffix Length Angle Angular accuracy Power supply Output
.1PV 1 sensor 24 V DC Volts
.1PA 1 sensor 24 V DC Milliamperes
.1PIV 1 sensor 1 sensor 0,4° 10 to 30 V DC Volts
.1PIA 1 sensor 1 sensor 0,4° 10 to 30 V DC Milliamperes
.1PIB 1 sensor 1 sensor 0,01° 10 to 30 V DC CANbus
.2PV 2 sensors 24 V DC Volts
.2PA 2 sensors 24 V DC Milliamperes
.2PIV 2 sensors 1 sensor 0,4° 10 to 30 V DC Volts
.2PIA 2 sensors 1 sensor 0,4° 10 to 30 V DC Milliamperes
.2PIB 2 sensors 2 sensors 0,01° 10 to 30 V DC CANbus

Suffixes .1PV, .1PA, .2PV and .2PA are specified with length linearity of 0,25 %. Versions with inclination measurement: range 0–360°. CANbus versions .1PIB and .2PIB specify 7,5 Hz and 10–1 000 kbit/s.

Complete table of mechanical models

The 17 entries from pages 69 and 71 are grouped here: dimensions in millimetres, travel in metres. Replace X with the measurement suffix selected in the preceding table.

Poles Cable Ø cable Travel Model A B D Mass
0 Steel wire rope 1,5 20 LR 320.20.X 222 400 320 14 kg
0 Steel wire rope 1,5 30 LR 420.30.X 222 473 420 20 kg
3 3xAWG25 screened 3,8 20 LR 320.032520.X 222 400 320 15 kg
3 3xAWG25 screened 3,8 32 LR 420.032532.X 222 473 420 21 kg
3 3xAWG25 screened 3,8 40 LR 420.032540.X 222 473 420 21 kg
3 3xAWG25 screened 3,8 50 LR 520.032550.X 271 570 520 25 kg
5 4xAWG26 screened 4,0 20 LR 320.052520.X 222 400 320 16 kg
5 4xAWG26 screened 4,0 32 LR 420.052532.X 222 473 420 22 kg
5 4xAWG26 screened 4,0 40 LR 420.052540.X 222 473 420 22 kg
5 4xAWG26 screened 4,0 50 LR 520.052550.X 271 570 520 25 kg
7 7x0,34 screened 6,3 10 LR 320.073410.X 222 400 320 17 kg
7 7x0,34 screened 6,3 30 LR 420.073432.X 222 473 420 23 kg
7 7x0,34 screened 6,3 40 LR 520.073440.X 271 570 520 26 kg
12 12x0,5 screened 10,7 12 LR 420.120512.X 253 498 420 22 kg
12 12x0,5 screened 10,7 15 LR 420.120515.X 253 498 420 22 kg
12 12x0,5 screened 10,7 20 LR 420.120520.X 253 498 420 22 kg
12 12x1,5 screened 15,5 23 LR 520.121523.X 325 596 520 29 kg

The 7x0,34 mm², 30 m entry bears code LR 420.073432.X. The five-pole column is associated with the 4×AWG26 screened cable. These details are reproduced as published and should be confirmed against the connection diagram.

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If you know the part number, provide the full code and quantity. For a replacement, send the reel's serial number, which is needed to identify the unit to be replaced. It is shown on the identification label; if this is unavailable, see the illustrated locations on the Contact page. For a new configuration, specify the number of hoses or cables, usable length and available technical data. Tell us what you know; we will help you complete the details.
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