AC-LVDT Position Sensor Hermetically Sealed LHA-19-A Series

For Use In
Cylinder/Actuator Position Feedback
Steel/Aluminum/Paper Mills
Factory Automation
Food Processing
Valve Position
LHA-19-A Series
Hermetically Sealed AC-LVDT
Rugged for Harsh Environments

The LHA-19-A series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are hermetically sealed, contactless devices designed for industrial and commercial applications, such as: factory automation, metal and paper mills, valve position, robotic assembly systems, pharmaceutical and food processing, and outdoor wet environment applications. These ruggedized linear devices have excellent price-vs-performance and stroke-to-length ratios, making the LHA-19-A  AC-LVDT sensors ideal for use in power generation and industrial automation equipment, and many OEM positioning applications.

LHA-19-A series AC-LVDTs are offered in 11 ranges from ±.050 to ±10.0 inches (±1.27 to ±254.0 mm) with excellent linearity and infinite resolution. LHA-19-A series AC-LVDTs operate from a nominal 3 Vrms, 2.5 to 3.3 kHz excitation source. They are packaged in a 0.750 inch (19.0 mm) OD SS housing and are offered with either an imperial or metric threaded 0.188 inch (4.8 mm) diameter core, PTO2-10-6P (6-pin) connector, and have a 0.235 inch (6.0 mm) ID for good core-to-bore clearance. They feature a wide operating temperature range.

When mated with ASG’s industrial AC-LVDT DIN-rail-mountable signal conditioner, the LHA-19-A series AC-LVDT becomes part of a complete measurement solution. ASG's AC-LVDTs are also offered in other diameters and longer range versions, including the LA-9.5, LA-19, LA-20.6, LA-21, LA-25, and LA-27.

For more information, see the technical datasheet below.

Features
  • - Hermetically Sealed AC-LVDT
  • - Welded ¾ Inch OD Stainless Steel Housing
  • - Axial PTO2-10-6P (6-pin) Connector
Specifications
Available Ranges: ±0.050, 0.125, 0.250, 0.500, 1.0, 2.0, 3.0, 4.0, 5.0, 7.5, and 10.0 inches
Excitation Frequency: 2.5 to 3.3 kHz
Excitation Voltage: 3 V ACrms nominal
Linearity Error : ≤±0.25% of FSO (typical 0.15%)
Null Voltage: ≤ 0.05% of FSO
Operating Temperature: -65 to 257 F (-55 to 125 °C )
Temperature Coefficient: ≤-0.02% FSO/K
Humidity: 95% RH non-condensing
Shock: 1000 g, 11 msec
Vibration: 20 g to 2 kHz
Ordering Info Table

Series
Name

Body Diameter

Termination
Topology

Bipolar Range (inches)

I/O Connection


Options

LHA

XX-

X-

XXX-

XX

XX

 

19 - 19 mm (0.75 inch)

A - Axial

0.05 - ±.050

02 -  PT02-10-6P (6-pin)

06 - Metric Threaded Core

 

 

 

0.125 - ±.125

 

 

 

 

 

0.25 - ±.250

 

 

 

 

 

0.5 - ±.500

 

 

 

 

 

01 - ±1.0

 

 

 

 

 

02 - ±2.0

 

 

 

 

 

03 - ±3.0

 

 

 

 

 

04 - ±4.0

 

 

 

 

 

05 - ±5.0

 

 

 

 

 

07.5 - ±7.5

 

 

 

 

 

10 - ±10.0

 

 

 

Configuration Table

PT02-10-6P Connector Wiring Table

Pin

I/O Function

A

Secondary 1

B

Secondary 1*

C

Secondary 2*

D

Secondary 2

E

Primary

F

Primary

*Connect pin B to pin C for differential secondary output

 

Nominal Range

     Sensitivity

Primary Z

Body Length A

Core Length B

Null Point N

Body Weight

Core Weight

inches [mm]

mV/V/.001in [mm]

 Ohms

inches [mm]

inches [mm]

inches [mm]

oz. [grams]

oz. [grams]

±0.05 [1.3]

6.10 [240]

325

2.01 [51.1]

0.80 [20.3]

0.63 [16]

1.6 [45]

0.08 [2.4]

±0.12 [3.0]

3.90 [155]

735

2.64 [67.1]

1.25 [31.7]

0.94 [24]

2.1 [59]

0.12 [3.7]

±0.25 [6.3]

2.40 [96]

1400

3.35 [85.1]

1.65 [41.9]

1.32 [33]

2.5 [71]

0.18 [4.8]

±0.50 [12.5]

0.63 [25]

1200

5.92 [150.4]

3.45 [87.6]

2.57 [65]

3.3 [93]

0.40 [11.6]

±1.00 [25]

0.61 [24]

1250

7.38 [167.5]

3.45 [87.6]

3.32 [84]

4.3 [122]

0.40 [11.6]

±2.00 [50]

0.37 [15]

2150

10.91 [277.1]

5.30 [314.6]

5.07 [129]

6.2 [176]

0.65 [18.0]

±3.00 [75]

0.25 [9.8]

2150

13.85 [346.1]

6.20 [157.5]

6.29 [160]

8.2 [232]

0.80 [22.0]

±4.00 [100]

0.17 [6.7]

420

16.17 [410.7]

6.20 [157.5]

7.65 [194]

9.2 [260]

0.80 [22.0]

±5.00 [125]

0.12 [4.7]

600

18.65 [473.8]

6.20 [157.5]

8.94 [227]

10.0 [283]

0.80 [22.0]

±7.50 [190]

0.11 [4.3]

775

23.85 [605.8]

7.00 [177.8]

11.52 [293]

14.2 [402]

0.90 [25.5]

±10.00 [250]

0.07 [2.8]

620

31.68 [804.7]

9.50 [241.3]

15.42 [392]

18.3 [519]

1.20 [34.0]

 

If you are looking for CAD drawings of our LHA-19-A sensor, simply call us at 856-727-0250 or use the online contact us form by clicking here.