LA-19-A Series

For use in:

Standard Industrial Measurements

Test and Measurement

Factory Automation

OEM

LA-19-A Series

General Purpose AC-LVDT

Well Suited for Many Industrial Posiiton Sensing Applications

The LA-19-A series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, and engine throttle position feedback. These general purpose linear position sensing devices have excellent price-to-performance and stroke-to-length ratios, making the LA-19-A AC-LVDT sensors ideal for use in test and measurement laboratories, industrial automation equipment, and many OEM positioning sensing applications.

LA-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. LA-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 stainless steel housing, come with either a unified or metric threaded 0.250 inch (6.35 mm) diameter core, have a 0.313 inch (8.0 mm) ID for good core-to-bore clearance, feature 12 inch (300 mm) long lead wires, and operate over a wide temperature range.

When mated with ASG’s industrial AC-LVDT DIN-rail-mountable signal conditioner, a LA-19-A series AC-LVDT becomes part of a complete measurement solution.

ASG AC-LVDTs are also offered in larger body and longer range versions, including the LA-9.5, LHA-19, LA-21, LA-25, and LA-27. For more information, see the technical datasheets below.

Features

General Purpose AC LVDT
.750 inch OD Stainless Steel Housing

Options

Metric Threaded Core

Specifications

Available Ranges:	+/-0.050, 0.100, 0.200, 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 FRO (typical ±0.15%)
Null Voltage:	≤0.05% of FSO
Operating Temperature:	-65 to 220°F (-55 to 105 C)
Temperature Coefficient:	≤-0.02% FSO/K
Humidity:	90% R.H., 240 Hours
Shock:	1000g, 11 msec
Vibration:	20 g to 2 kHz

Ordering Information

Series Name	Body Diameter	Termination Topology	Bipolar Range (inches)	I/O Connection	Options
LA	XX-	X-	XX-	XX	XX
	19 - 19 mm (0.750 inch)	A - Axial	0.05 - ±.05	12 - 12-inch leads	06 - Metric Threaded Core
			0.1 - ±.100
			0.2 - ±.200
			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 Information

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]	6.50 [255]	400	1.13 [28.7]	0.80 [20.3]	0.56 [14.3]	1.02 [29]	0.14 [4.0]
±0.10 [2.5]	4.00 [155]	1000	1.75 [44.5]	1.25 [31.7]	0.88 [22.2]	1.41 [40]	0.22 [6.2]
±0.20 [5.0]	2.40 [95]	1900	2.50 [63.5]	1.65 [41.9]	1.25 [31.7]	1.73 [48]	0.30 [8.5]
±0.50 [12.5]	0.65 [25]	1400	5.02 [127.5]	3.45 [87.6]	2.51 [63.7]	2.82 [80]	0.72 [20.4]
±1.00 [25]	0.65 [25]	1650	6.51 [165.4]	3.45 [87.6]	3.25 [82.5]	3.81 [108]	0.72 [20.4]
±2.00 [50]	0.39 [15]	1875	10.02 [254.5]	5.30 [134.6]	5.01 [127.2]	5.00 [142]	1.20 [34.0]
±3.00 [75]	0.26 [10]	1950	12.75 [323.9]	6.20 [157.5]	6.38 [161.9]	7.69 [218]	1.47 [41.7]
±4.00 [100]	0.18 [7.1]	425	15.20 [386.1]	6.20 [15.7]	7.60 [193.0]	9.80 [278]	1.47 [41.7]
±5.00 [125]	0.13 [5.1]	1050	17.75 [450.9]	6.20 [157.5]	8.88 [225.4]	11.71 [332]	1.47 [41.7]
±7.50 [190]	0.12 [4.3]	1380	22.85 [580.4]	7.00 [177.8]	11.43 [290.2]	16.93 [480]	1.51 [42.8]
±10.00 [250]	0.08 [3.1]	1050	30.64 [778.3]	9.50 [241.3]	15.32 [389.1]	20.53 [582]	2.20 [62.4]

LA-19-A Outline Drawing

LA-19-A Datasheet

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.

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 help technical help with your measurement application? Call us today 856-727-0250.

Our Web Site: We are constantly improving our website and adding new sensors to our product offerings.

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LA-19-A Series

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