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AC LVDT Position Sensor Heavy Duty LA-25-A Series

For use in:
Steam and Hydroelectric Power Plants
Industrial Fluid Power Equipment
LVDT Linear Position Sensors
Factory Automation Systems
AC LVDT Position Sensor Heavy Duty LA-25-A Series
LA-25-A Series
LVDT Linear Position Sensors
Specifically Designed for Harsh Industrial Environments

Alliance Sensors Group LA-25-A series LVDT linear position sensors are designed to handle extreme industrial environments. This robust linear sensor has a thick wall aluminum housing (also available in stainless steel), a core enclosed inside of the core extension rod assembly that cannot break loose, while offering a sturdy male thread for easy mechanical connection, and a pair of double contact shaft seals to keep fluids and solid contaminants out of its bore. The sensor’s electrical termination includes the choice of an axial connector or a cord grip with a cable.
An LA-25-A LVDT is ideal for roller gap positioning, head box feedback, process valve displacement, and actuator position feedback with the durability to withstand the harsh environments found in steam and hydro power plants; paper, steel, and aluminum mills; and industrial automation and fluid power systems. It can operate in such hostile factory environments as lubricant mist, cutting oil spray, and airborne grit or dust, and it survives typical industrial steam cleaning and wash downs. Mated with ASG’s SC-200 industrial LVDT DIN-rail-mountable signal conditioner, the LA-25-A LVDT becomes an ideal solution for heavy duty industrial applications requiring position sensing. For operating an LA-25-A as a steam valve position sensor in a power plant, ASG’s model S2A signal conditioner, which is designed specifically for that application, is recommended.


Features
  • Stock ranges from 3 inches to 15 inches (75 mm to 375 mm) Full Scale
  • Works in 3-wire, 4-wire, 5-wire, 6-wire, and ratiometric (A-B/A+B) systems
  • Core totally enclosed in 3/8 inch (9.5 mm) diameter core extension rod
  • Two double contact shaft seals keep out contaminants
  • 5/16-24 or 8 mm male threaded shaft end
  • Continuous operation to 250 °F (120 C)
  • Environmentally sealed to IEC IP-68
Options
  • Stainless steel body
  • Alternate termination connectors, including one for 350 °F (175 C) operation
  • Mild radiation resistant version for nuclear power plants (30 Mrads for 40 years)
  • Auxiliary shaft seals
  • Mounting hardware including flanges, single hole mounting kits, swivel rod eye ends, ball joints, extension rods, holddown clamps, and tie bars for dual-mounted LVDTs
Specifications
Available FS Ranges: 0 to 3, 6, 9, 12, or 15 inches (0 to 75, 150, 225, 300, or 375 mm)
Excitation Frequency: 3 kHz nominal
Excitation Voltage: 3 V ACrms nominal
Full Scale Output: 0.9 V ACrms output (nom.) from differentially connected (S1-S2) secondaries (ref: 3 Vrms excitation); sum of secondaries output is constant over range for ratiometric (S1-S2)/(S1+S2) operation
Linearity Error: ≤±0.3% of FSO
Operating Temperature: -40 to 120 C (-40 to 250 °F)
Temperature Coefficient: ≤ 0.025% FSO/degree C
Humidity: 95% RH non-condensing
Shock: 1000 g, 11 msec
Vibration: 5-20 Hz, 0.5 inch p-p; 20-2000 Hz, 4.2 g p-p
Ordering Information

Series

Range inches

Termination

LA-25-A-

XX-

XX-

 

03 - 3”

00- cord grip with 1 m cable

 

06 - 6”

03- cord grip with 3 m cable

 

09 - 9”

05- 6-pin Turck minifast connector

 

12 - 12”

 

 

15 - 15”

 

 


Configuration Information

LA-25-A-XX Configurations

LA-25-A-XX

-03

-06

-09

-12

-15

Dim ‘L’

8.12”L

11.87”L

14.87”L

18.87”L

22.87”L


AC LVDT Position Sensor Heavy Duty LA-25-A Series
All dimensions and specifications are nominal. With our policy of on-going development and design improvements, specifications may change without notice. Modifications may affect some or all of the mechanical electrical and or performance specifications of our product. Please make sure to contact us for the most up to date information.
Download AC LVDT Position Sensor LA-25-A Datasheet
Download Termination Codes
Download AC LVDT Position Sensor LA-25-A Outline Drawing

Our Technical Support Staff:  We have more than 150 years and three generations in the position sensor business and are expert application engineers at what we sell. We have real world experience and know how to solve your measurement challenges. Need technical help with your measurement application? Call us today 856-727-0250. 

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Distributors For:

HGSI Temperature Sensing Products

Temperature Sensing Products

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