The ME-7 Series LVIT (Linear Variable Inductance Transducer) Position Sensors from Alliance Sensors Group was designed as an alternative to magnetostrictive sensors. This series has a more robust construction and a lower cost of ownership. The unit can be embedded into the end cap of industrial or mobile hydraulic cylinders and pneumatic actuators. These sensors are based on a proprietary, contactless, inductive sensing technology that employs a 7 mm diameter probe inserted into a target tube mounted inside of a gun-drilled blind hole in the cylinder.
The ME-7 sensor has a 1.89 inch (48 mm) diameter sensor head with an O-ring and back up ring, in a groove, so it can be mounted in the same cavity in the cylinder cap, and locked in with radial set screws, just like a magnetostrictive sensor. Contactless ME-7 sensors do not wear out and have no output signal deterioration over the life of the sensors because it uses an inductive coil. The ME-7 sensors can withstand much greater shock and vibrations than other technologies. A very useful element of the ME-7 sensors is ASG’s proprietary SenSet™ feature whereby a sensor’s analog output can be adjusted in the field, after installation, to match the range of motion of the cylinder rod.
For more information see the technical datasheet below.
- - LVIT Technology™ (Linear Variable Inductance Transducer)
- - Senses Cylinder Rod…NO MAGNET REQUIRED
- - Extremely Robust Construction
- - Easily Adapts to Existing Cylinder Designs
- - High Resolution with Choice of Analog I/Os
- - Contactless Sensing for Longer Sensor Life
- - Proprietary SenSet™ for Field Adjustable Range Scaling
| Analog I/Os: | 0 – 5 V or 0.5 – 4.5 V output with 8 – 30 V input, 35 mA max. 0 – 10 V 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: | 0-25 mm to 0-900 mm (1 to 36 inches) Full Scale (nominal) |
| Linearity Error: | ±0.15% of Full Scale Output (FSO) typical, ±0.25% of FSO max. |
| Resolution: | 0.025% of FSO |
| Update Rate: | 300 Hz nominal |
| Operating Temperature: | -20 to 85 C (-40 C to 105 C Extended Range) |
| Temperature Coefficient: | ≤±0.015% of FS/deg C |
| Operating Pressure: | 5000 psig (350 bar) max operating, 7500 psig (520 bar) proof |
| 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 |
| Output | Probe | Range | Body |
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| Housing |
ME | X- | X- | XXX- | XX- | XX- | XX- | X |
| E -Voltage | 7 -7 mm | 025 - 300 (25 mm increments) | 48 - 48 mm | 00 - 1 m cable | 05 - 0.5-4.5 V | A - Aluminum |
| I - Current |
| 300 - 500 (50 mm increments) |
| 01 - 1 foot cable | 06 - 4.5 to 0.5 V | S - 300 Series SS |
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| 500 - 900 (100 mm increments) |
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| 10 - 0 to 10.0 V |
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| 11 - 10.0 to 0 V |
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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 |
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| 51 - 5 to 0 V |
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Wiring Table | |
I/O Function | Cable Color |
+24 V DC input | Red |
Ground | Black |
MEE voltage output | Green |
MEI current output | Green |
SenSet™ | White |
Nominal Range | Dim. “A” In. [mm] |
25 mm | 1.0 [25.4] |
50 mm | 2.0 [50.8] |
75 mm | 3.0 [76.2] |
100 mm | 4.0 [101.6] |
125 mm | 5.0 [127.0] |
150 mm | 6.0 [152.4] |
200 mm | 8.0 [203.2] |
250 mm | 10.0 [254.0] |
300 mm | 12.0 [304.8] |
350 mm | 14.0 [355.6] |
400 mm | 16.0 [406.4] |
450 mm | 18.0 [457.2] |
500 mm | 20.0 [508.0] |
600 mm | 24.0 [609.6] |
750 mm | 30.0 [762.0] |
900 mm | 36.0 [914.4] |
If you are looking for CAD drawings of our ME-7 sensor, simply call us at 856-727-0250 or use the online contact us form by clicking here.
Download LVIT Linear Position Sensor ME-7 Datasheet
