LVIT Linear Position Sensor MHE-7 Series

For Use In
Hydraulic and Pneumatic Cylinders
Embeddable Subsea Actuators
Mobile Hydraulic Equipment
MHE-7 Series
28 mm Diameter In-cylinder LVIT Inductance Position Sensors
Lower cost, More Robust Alternative to Other Embeddable Sensors

The MHE-7 Series LVIT (Linear Variable Inductance Transducer) Position Sensor from Alliance Sensors Group offers more robust construction and a lower cost of ownership than other embeddable in-cylinder sensing technologies, making the MHE-7 the preferred choice of cylinder users. These sensors can be embedded into the end cap of industrial or mobile hydraulic cylinders or electric linear actuators and are based on a contactless inductive sensing technology that employs a 7 mm diameter probe with a shorter stroke-to-length ratio than most other sensing technologies. It uses a simple gun-drilled blind hole in the cylinder rod to sense the rod's position without requiring any targeting element(s) to be assembled to the piston.

An MHE-7 has a 28 mm (1.10 inch) diameter sensor head with an o-ring and back-up ring in a groove, so it can be mounted in an industry-standard 28 mm diameter cavity in the cylinder cap and locked in with radial set screws or a snap ring. Being contactless, an MHE-7 Series sensor does not wear out and has no output signal deterioration over the life of the sensor because it uses a simple inductive coil. The MHE-7 sensor can withstand much greater shock and vibration than other technologies. The MHE-7 is also offered with ASG’s proprietary SenSet™ feature whereby a sensor’s analog output can be easily adjusted in the field after installation to match the range of motion of the cylinder rod.

For more information see the technical datasheet below.
 

Features
  • - LVIT Technology™ (Linear Variable Inductance Transducer)
  • - Senses the Cylinder Rod Itself
  • - Extremely Robust Construction
  • - Contactless Sensing for Long Sensor Life
  • - Easily Adapts to Existing Cylinder Designs
  • - High Resolution with Choice of Several Analog I/Os
  • - SenSet™ Feature for Field Scalability of Analog Output
Specifications
Analog I/Os: 0 - 5 V or 0.5 - 4.5 V output, 8 - 30 V input, 35 mA max. 0 - 10 V output, 12 - 30 V input, 35 mA max. 4 - 20 mA, 3-wire sourcing output, 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
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
Ordering Info Table


LVIT Series

Electrical
Output

Probe
Dia.

Range
(mm)

Housing
Diameter


Termination


DC
Output

Housing
Material

Rod Hole
Size (mm)

Rod
Material

MHE

X-

X-

XXX-

XX-

XX-

XX-

X

XX-

XX

 

E -Voltage

7 -7 mm

025 - 250

28 - 28 mm

00 - 1 m cable

05 - 0.5-4.5 V

A - Aluminum

08 - 8 (25-100 ranges)

AL - Aluminum

 

I - Current

 

(25 mm increments)

 

12 - 12 inch leads

06 - 4.5 to 0.5 V

S - 300 Series SS

95 - 9.5 (125-200 ranges)

AS - Alloy Steel

 

 

 

 

 

 

10 - 0 to 10.0 V

 

11 - 11 (225-900 ranges)

CS - Carbon Steel

 

 

 

250 - 500

 

 

11 - 10.0 to 0 V

 

 

SS - Stainless Steel

 

 

 

(50 mm increments)

 

 

20 - 4 to 20 mA

 

 

 

 

 

 

 

 

 

21 - 20 to 4 mA

 

 

 

 

 

 

500 - 900

 

 

50 - 0 to 5.0 V

 

 

 

 

 

 

(100 mm increments)

 

 

51 - 5.0 to 0 V

 

 

 

 

Configuration Table

 

If you are looking for CAD drawings of our MHE-7 sensor, simply call us at 856-727-0250 or use the online contact us form by clicking here.