The LRS-18 series of LVIT (Linear Variable Inductance Transducer) spring-loaded position sensors by Alliance Sensors Group are contactless devices designed for dimension or position measuring applications in factory automation and in various industrial and commercial applications, such as: automotive testing, mil/aero test stands, robotic arms, and packaging equipment. An ideal solution for when the sensing element cannot be attached to the object being measured. LRS-18s are offered in full scale ranges from 0.5 to 4.0 inches (12.5 to 100 mm) with excellent resolution and high stroke-to-length ratios. The maximum tip force on the item being measured is 1 pound.
LRS-18 sensors have a 0.75 inch (19 mm) diameter aluminum or stainless steel body with an M18 x 1 thread and come with two hex jam nuts for easy installation in place of an 18 mm analog prox sensor. These sensors use a 0.25 inch diameter probe equipped with an AGD No. 9 contact tip, and are offered with either an axial cable or a connector. Operating from a variety of DC voltages. These sensors are available with a choice of four analog outputs and they all include ASG’s proprietary SenSet™ field recalibration feature.
For more information see the technical datasheet below.
- - Spring-loaded LVIT Technology™ (Linear Variable Inductance Transducer)
- - Ranges from 0.5 to 4.0 Inches (12.5 to 100 mm)
- - Contactless Operation Prevents Internal Wearout from Dithering or Rapid Cycling
- - Excellent Stroke-to-Length Ratio
- - Proprietary SenSet™ Field Adjustable Range Scaling
| Analog I/Os: | 0 - 5 V or 0.5 - 4.5 V DC output with 8 - 30 V input, 35 mA max. 0 - 10 V DC output with 12 - 30 V input, 35 mA max. 4 - 20 mA (3-wire) output with 18 - 30 V input, 60 mA max. (75 C max.) |
| Measuring Ranges: | 12.5 mm to 100 mm (0.5 to 4.0 inches) full scale (nominal) |
| Linearity Error: | ±0.15% of Full Scale Output (FSO) typical, ±0.25% max. |
| Resolution: | 0.025% of FS |
| Operating Temperature: | -20 to 85 C (-40 to 105 C Extended Range) |
| Temperature Coefficient: | ≤±0.015% of FS/K |
| Vibration: | 5-20 Hz 0.5 inch p-p; 20-2000 Hz 4.2 g p-p |
| Shock: | 1000 g, 11 msec. |
| Terminations: | IEC IP-67 |
| Humidity: | 95% RH, non-condensing |
Position Sensor Terminations LRS-18
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LRS | X- | XX- | XXX- | X- | XX- | XX | X- |
| E- voltage | 18 - M18 | 013 (12.7 MM) | A- Axial | 00- 1 m cable | 05- 0.5 to 4.5 V DC | A- Aluminum |
| I- Current |
| 025 | 01- 5-pin M-12 | 06- 4.5 to 0.5 V DC | S- 300 Series SS | |
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| 050 |
| 02- 6-pin PT02 | 10- 0 to 10 V DC |
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| 075 |
| 03- 3 m cable | 11- 10 to 0 V DC |
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| 100 |
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| 20- 4 to 20 mA |
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| 21 - 20 to 4 mA |
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| 50 - 0 to 5 V DC |
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| 51 - 5 to 0 V DC |
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Wiring Table | ||
I/O Function | M12 Pin | Cable Color |
+24 V DC input | 1 | Red |
Ground | 2 | Black |
LRSE voltage output | 3 | Green |
LRSI current output | 4 | Green |
SenSet™ | 5 | White |
'A' Nominal Range | 'B' Body Length | Spring Rate | Max. Force |
inches [mm] | inches [mm] | Lbf/in [kgf/cm] | Lbf [kgf] |
0.5 [13] | 3.50 [88.9] | 0.75 [0.134] | 0.9 [0.41] |
1.0 [25] | 4.00 [101.6] | 0.75 [0.134] | 0.9 [0.41] |
2.0 [50] | 5.08 [129.0] | 0.43 [0.077] | 1.0 [0.45] |
3.0 [75] | 6.16 [156.5] | 0.30 [0.054] | 1.0 [0.45] |
4.0 [100] | 7.25 [184.1] | 0.23 [0.041] | 1.0 [0.45] |
If you are looking for CAD drawings of our LRS-18 sensor, simply call us at 856-727-0250 or use the online contact us form by clicking here.
Download LVIT Spring-Loaded Position Sensor LRS-18 DatasheetProduct Diagram
