Position Sensor LVIT MHP-7 Series

The MHP-7 Series LVIT (Linear Variable Inductance Transducer) Position Sensors from Alliance Sensors Group were designed to be installed into the rear endcap of hydraulic cylinders having a female o-ring port. Their 1-inch hex aluminum or stainless steel housings are ideal for operation up to 5000 psig (350 bar) in high pressure mobile hydraulic systems, factory automation machinery, or oil and gas exploration equipment.
The MHP-7 series sensors are based on a proprietary contactless sensing technology with a good stroke-to-length ratio. They employ a 7 mm diameter sealed inductive probe inserted into a gun-drilled hole in the cylinder rod to measure its position rather than using a ring magnet or a potentiometer’s contact spool. They are offered in full scale ranges from 25 to 600 mm (1 to 24 inches), with a wide variety of analog I/Os, and either connector or cable terminations. The MHP-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 data sheet below.

Features

•     LVIT Technology™ (Linear Variable Inductance Transducer)
•     Senses cylinder rod… NO MAGNET REQUIRED
•     1-inch hex aluminum or stainless steel housing
•     Easily adapts to existing cylinder designs
•     High resolution with choice of analog I/Os
•     Contactless- no wear out from cycling or dithering
•     Proprietary SenSet™ for field scalability of analog output

Specifications

• 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 0-600 mm (1 to 24 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 C 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                              :     1000g, 11 msec

• Terminations                    :     IEC IP-67

• Humidity                          :     95% RH, non-condensing