Accessories for LVDTs
LVDT Accessories Rev. 3 www.meas-spec.com 2015-July
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ABOUT LVDT’S
Linear Variable Differential Transformers are non-contact, abs o l ut e position sensors.
They include a transformer housed into a metal case and a ferromagnetic core
which can be attached to an extension rod. The core slides inside the spool tube
(also called boreliner) of the transformer. The transformer contains the coil assembly
with primary and secondary windings and, in the case of DC LVDTs, the signal
conditioning electronics as well.
Measurement Specialties, Inc. (NASDAQ MEAS) offers a full range of LVDTs as well
as other position sensors, signal conditioners, and many other types of sensors.
Data sheets, application notes and manuals can be downloaded from our web site at http://www.meas-spec.com/position-
sensors.aspx and http://www.meas-spec.com/datasheets.aspx.
Measurement Specialties acquired Schaev itz Sensors and the SchaevitzTM trademark in 2000.
MATING CONNECTOR AND EXTENSION CABLES
There is only one connector mating plug for our LVDTs equipped with integral connector (HCA,HCA-RA, HCI, HCD, HCT,
and HC485): Description: Bendix-type PT06A-10-6S(SR)
Part Number: 62101011-000
Please contact us for mating plugs installed on cables of your desired lengths. We can also provide cables with custom
lengths for interfacing all our AC LVDTs with our signal conditioners. Our cables are shielded and designed for optimum
performance of our sensors and signal conditioners under industrial environments.
MOUNTING BLOCKS
Frequently, LVDT installations require a convenient method to mount them.
Ready-made mounting blocks are available for most of our LVDT Series.
Constructed of reinforced phenolic and other nonconductive materials with a low-
temperature coefficient of expansion, our mounting blocks are a convenient,
inexpensive and fast solution for LVDT installation.
To order, use the chart below to specify the part number for the
appropriate LVDT diameter:
"A"
Diameter
LVDT
Diameter
inch
LVDT
Diameter
mm
Use with
LVDT
Series
Part Number
0.83
0.812
20.62
HR
04560952-000
0.77
0.750
19.05
Various
04560950-000
0.49
0.472
12.00
M-12
04560956-000
0.39
0.375
9.53
MHR
04560954-000
Accessories for LVDTs
LVDT Accessories Rev. 3 www.meas-spec.com 2015-July
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CORE CONNECTING RODS AND CORES
LVDT installation requires a connecting rod between the LVDT core and the moving object being measured. Connecting
rods made of magnetized, ferromagnetic, o r high conductivity metals (Aluminum, Brass, Copper, etc.) must not be used as
they interfere with the LVDT operation. Connecting rods made of plasti c or other non-conductive materials are acceptable.
One must be extremely careful when attaching a core to a rod, as the core is a very sensitive part. It is annealed for the
highest permeability, making this Nickel alloy part “soft”. Any excessive stresses, high heat, or physical damage would
significantly affect the LVDT performance. Cores must be installed only hand tight and caution must be applied to avoid
bending. Thread-locker adhesive can be applied. Cores must never be welded or crimped. For additional information, please
refer to our applications note “LVDT selection, handling & installation guidelines“ at: http://www.meas-spec.com/position-
sensors/linear-displacement-sensors/ac-lvdts.aspx.
Measurement Specialties has a large selection of high-quality connecting rods. Our connecting rods are fabricated from AISI
300 Series austenitic (non-ferromagnetic) stainless steel to prevent distortion of the LVDT magnetic field. They are threaded
end to end. To order, check the thread size of the core for the LVDT you are using and select the part number in the table
below function of the length (L) that you need:
Length Thread size
inch
mm
1-72 UNF-2B
40 UNC-2B
6-40 UNF-2B
M2x0.4-6H
M3x0.5-6H
M4x0.7-6H
6
152.4
05282945-006
05282946-006
05282947-006
05282976-006
05282977-006
05282978-006
12
304.8
05282945-012
05282946-012
05282947-012
05282976-012
05282977-012
05282978-012
24
609.6
05282945-024
05282946-024
05282947-024
36
914.4
05282945-036
05282946-036
05282947-036
We also sell replacement cores (please contact us).
PSD 40-15 DUAL RAIL POWER SUP PLY FOR DC LVDT’S
The PSD 40-15 power supply is designed for optimum operation of our DC LVDTs with voltage,
current or digital outputs. The supply voltage is ±15VDC with 85 to 264 Volts AC, 45 to 65 Hertz line
input. The current capability is 1A continuous and it can therefore operate multiple sensors. This
DIN standard rail mount power supply is CE certified and UL liste d.
Part Number: 02291339-000
Refer to the data sheet for detailed information on this product at:
http://www.meas-spec.com/datasheets.aspx (in Position Sensor Instrumentation)
INSTRUMENTATION FOR AC LVDT’S
Measurement Specialties offers a comprehensive selection signal
conditioners, panel displays and mini-controllers with voltage,
current loop and digital outputs. These products are suitable for the
most rigorous OEM, factory automation, process controls, materials
testing, metrology and many other applications.
Data sheets and manuals can be downloaded from our web site at:
http://www.meas-spec.com/position-sensors/position-sensor-
instrumentation/lvdt-signal-conditioning.aspx
Accessories for LVDTs
LVDT Accessories Rev. 3 www.meas-spec.com 2015-July
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CONTACT INFORMATION
NORTH AMERICA
EUROPE
ASIA
Measurement Specialties, Inc.
1000 Lucas Way
Hampton, VA 23666
United States
Phone: +1-800-745-8008
Fax: +1-757-766-4297
Email: sales@meas-spec.com
Web: www.meas-spec.com
MEAS Deutschland GmbH
Hauert 13
D-44227 Dortmund
Germany
Phone: +49-(0)231-9740-0
Fax: +49-(0)231-9740-20
Email: info.de@meas-spec.com
Web: www.meas-spec.com
Measurement Specialties China Ltd.
No. 26, Langshan Road
High-tech Park (North)
Nanshan District, Shenzhen 518057
China
Phone: +86-755-33305088
Fax: +86-755-33305099
Email: info.cn@meas-spec.com
Web: www.meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for
inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the
manufacturer. Measurem ent Specialt ies, I nc. reserves the right to make c hanges without further not ic e to any product herein. Measurement
Specialti es, Inc. makes no warran ty, represent ation or guarantee re garding the suit abilit y of its product for any part icular purpose, nor does
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different
applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialti es, Inc. does not convey any lic ense under its patent rights nor the rights of others.
