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MHR SERIES

Miniature General Purpose AC LVDT

SPECIFICATIONS



Small size and low mass core

High output signal

Stroke ranges from ± 0.005 to ±2 inches

AC operation from 2kHz to 20kHz

Stainless steel housing

Imperial or metric threaded core

FEATURES



Compact size

Lightweight core

±0.25% linearity (100% stroke)

Shock and vibration tolerant

Stainless steel case

Calibration certificate supplied with

each unit

The legendary

MHR Series

LVDTs provide precision

measurements in space restrictive applications. With a

diameter of just 3/8 inch [9.5mm], and an extremely

lightweight core, the MHR Series is ideal for applications

where excessive core weight could influence the motion;

with less inertia, accurate measurements at higher

displacement speeds are easier to achieve. The

lightweight core also reduces mechanical stresses and

helps preserve the structural integrity of the core

actuation assembly.

The high output sensitivity resulting from the close

electrical coupling between the coil and core provides

ample signal for interfacing with practically all signal

conditioners and conditioning circuits. The magnetic

stainless steel housing provides electromagnetic and

electrostatic shielding.

The high temperature operation (200

C) model, MHR-T

is available for stroke ranges of ±0.025 to ±1 inch. A High

pressure (vented case) model, MHR-V is also available.

The MHR is compatible with the full line of Measurement

Specialties LVDT signal conditioners.

Like in most of our LVDTs, the MHR windings are vacuum

impregnated with a specially formulated, high

temperature, flexible resin, and the coil assembly is

potted inside its housing with a two-component epoxy.

This provides excellent protection against hostile

environments such as high humidity, vibration and shock.

APPLICATIONS



X, Y, Z stage position feedback

Wire-die bonding machines

Cylinder position feedback

Voice coil testing

Materials testing machines

Space restricted installations

SENSOR SOLUTIONS

/// MHR Series Rev. 8

07/2017

Page 1

MHR SERIES

Miniature General Purpose AC LVDT

PERFORMANCE SPECIFICATIONS

ELECTRICAL SPECIFICATIONS (common)

Input voltage

Input frequency

Test frequency

3 VRMS sine wave

2kHz to 20kHz

2.5kHz (standard)

ELECTRICAL SPECIFICATIONS @ 10kHz (recommended operation)

Parameter

Stroke range

Sensitivity

V/V/inch

[mV/V/mm]

Output at stroke ends

mV/V

(*)

Phase shift

Input impedance

(PRIMARY)

Output impedance

(SECONDARY)

Non-linearity

@ 50% stroke

@100% stroke (max)

@125% stroke

@150% stroke

Null voltage (max.)

MHR 005

±0.005

[±0.13]

8.70

[343]

43.5

+38°

84Ω

302Ω

MHR 010

±0.010

[±0.25]

6.05

[238]

60.5

+20°

165Ω

300Ω

MHR 025

±0.025

[±0.64]

8.10

[319]

202.5

+21°

238Ω

485Ω

0.15

0.25

0.30

MHR 050

±0.05

[±1.27]

3.15

[124]

157.5

+8°

419Ω

154Ω

0.15

0.25

0.35

0.50

MHR 100

±0.10

[±2.54]

2.80

[110]

280

+5°

400Ω

200Ω

±% of FR

0.15

0.25

0.30

MHR 250

±0.25

[±6.35]

2.07

[81.5]

517.5

+7°

345Ω

420Ω

MHR 500

±0.5

[±12.7]

1.96

[77.2]

980

+7°

264Ω

810Ω

MHR 1000 MHR 2000

±1

±2

[±25.4]

[±50.8]

0.77

0.49

[30.3]

[19.3]

770

-1°

155Ω

450Ω

0.20

0.25

0 .50

980

-15°

504Ω

1780Ω

0.50

0.20

0.10

0.25

0.30

0.35

0.40

0.35

2.5% FRO 1.0% FRO

0.15

0.25

0.35

0 .30

(**)

0.50

(**)

0.75

(**)

0.5% of FRO

ELECTRICAL SPECIFICATIONS @ 2.5kHz (standard calibration)

Parameter

Stroke range

Sensitivity

V/V/in

[mV/V/mm]

MHR 005

±0.005

[±0.13]

3.19

[126]

+73°

59Ω

260Ω

MHR 010

±0.010

[±0.25]

3.36

[132]

33.6

+59°

78Ω

192Ω

MHR 025

±0.025

[±0.64]

4.36

[172]

109

+58°

116Ω

286Ω

MHR 050

±0.05

[±1.27]

2.55

[100]

127.5

+36°

141Ω

90Ω

MHR 100

±0.10

[±2.54]

2.40

[94]

240

+30°

135Ω

125Ω

±% of FR

0.20

0.25

0.30

0.40

3% FRO

0.10

0.25

0.35

1.5% FRO

0.15

0.25

0.30

0.15

0.25

0.35

0.50

0.15

0.25

0.30

0.15

0.25

0.35

0.50

(**)

0.5% of FRO

0.15

0.25

0.30

(**)

0.75

(**)

0.20

0.25

0 .50

0.25

MHR 250

±0.25

[±6.35]

1.73

[68]

432.5

+33°

147Ω

268Ω

MHR 500

±0.5

[±12.7]

1.60

[63]

800

+23°

145Ω

445Ω

MHR 1000 MHR 2000

±1

[±25.4]

0.70

[27]

700

+6°

100Ω

370Ω

±2

[±50.8]

0.47

[19]

940

+3°

304Ω

13620Ω

Output at stroke ends,

mV/V

(*)

Phase shift

Input impedance

(PRIMARY)

Output impedance

(SECONDARY)

Non-linearity

@ 50% stroke

@100% stroke (max)

@125% stroke

@150% stroke

Null voltage (max)

(*) Unit for output at stroke ends is millivolt per volt of input voltage

(**) Requires special reduced core length

SENSOR SOLUTIONS

/// MHR Series Rev. 8

07/2017

Page 2

MHR SERIES

Miniature General Purpose AC LVDT

ENVIRONMENTAL SPECIFICATIONS & MATERIALS

Operating temperature

Shock survival

Vibration tolerance

Housing material

Electrical connection

IEC 60529 rating

-65°F to +300°F [-55°C to 150°C]

1,000 g (11ms half-sine)

20 g up to 2KHz

AISI 400 Series stainless steel

Six lead-wires, 32 AWG stranded Copper, PTFE insulated, 1 foot [0.3m] long

(longer wires optional)

IP61

Notes:

All values are nominal unless otherwise noted

Electrical specifications are for the test frequency indicated in the table

Dimensions are in inch [mm] unless otherwise noted

FR: Full Range is the stroke range, end to end; FR=2xS for ±S stroke range

FRO (Full Range Output): Algebraic difference in outputs measured at the ends of the range

MECHANICAL SPECIFICATIONS

Parameter

Body length “A”

Core length “B”

Body weight

Core weight

[g]

MHR 005

0.375

[9.5]

0.180

[4.6]

0.07

[2]

0.004

[0.1]

MHR 010

0.535

[13.6]

0.233

[5.9]

0.11

[3]

0.007

[0.2]

MHR 025

0.660

[16.8]

0.400

[10.2]

0.18

[5]

0.016

[0.5]

MHR 050

0.815

[20.7]

0.500

[12.7]

0.21

[6]

0.016

[0.5]

MHR 100

0.990

[25.1]

0.625

[15.9]

0.21

[6]

0.025

[0.7]

MHR 250

1.850

[47.0]

1.125

[28.6]

0.32

[9]

0.032

[0.9]

MHR 500

3.300

[83.82]

2.000

[50.8]

0.60

[17]

0.056

[1.6]

MHR 1000

5.600

[142.2]

3.000

[76.2]

0.92

[26]

0.088

[2.5]

MHR 2000

8.000

[203.2]

3.00

[76.2]

1.4

[40]

0.088

[2.5]

Dimensions are in inch [mm]

SENSOR SOLUTIONS

/// MHR Series Rev. 8

07/2017

Page 3

MHR SERIES

Miniature General Purpose AC LVDT

WIRING INFORMATION

Connect Blue to Green for differential output

ORDERING INFORMATION

Description

±0.005 inch LVDT

±0.010 inch LVDT

±0.025 inch LVDT

±0.05 inch LVDT

±0.10 inch LVDT

Model

MHR 005

MHR 010

MHR 025

MHR 050

MHR 100

Part Number

02560405-000

02560406-000

02560407-000

02560408-000

02560409-000

Description

±0.25 inch LVDT

±0.5 inch LVDT

±1 inch LVDT

±2 inch LVDT

Model

MHR 250

MHR 500

MHR 1000

MHR 2000

Part Number

02560410-000

02560411-000

02560412-000

02561033-000

OPTIONS

5.0 kHz calibration

10 kHz calibration

Metric threaded core

10 foot long lead-wires

XXXXXXXX

-002

XXXXXXXX

-003

XXXXXXXX

-006

Consult factory

XXXXXXXX

-040

Note: Add multiple option dash numbers together to determine proper ordering suffix

Example: MHR 1000, ±1 inch, with 5 kHz calibration and metric threaded core, P/N 02560412-008

ACCESSORIES

Core connecting rod,

Mounting block

6 inches long, 1-72 threads

12 inches long, 1-72 threads

24 inches long, 1-72 threads

36 inches long, 1-72 threads

6 inches long, M2x0.4 metric threads

12 inches long, M2x0.4 metric threads

05282945-006

05282945-012

05282945-024

05282945-036

05282976-006

05282976-012

04560954-000

SENSOR SOLUTIONS

/// MHR Series Rev. 8

07/2017

Page 4

MHR SERIES

Miniature General Purpose AC LVDT

NORTH AMERICA

Measurement Specialties, Inc.,

a TE Connectivity company

Tel: 800-522-6752

Email:

customercare.frmt@te.com

EUROPE

Measurement Specialties (Europe), Ltd.,

a TE Connectivity Company

Tel: 800-440-5100

Email:

customercare.bevx@te.com

ASIA

Measurement Specialties (China) Ltd.,

a TE Connectivity company

Tel: 0400-820-6015

Email:

customercare.shzn@te.com

TE.com/sensorsolutions

Measurement Specialties, Inc., a TE Connectivity company.

Measurement Specialties, TE Connectivity, TE Connectivity (logo) and EVERY CONNECTION COUNTS are trademarks. All other logos, products and/or company names referred to herein

might be trademarks of their respective owners.

The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes

no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard

Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse

of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application.

TE Connectivity Ltd. family of companies

SENSOR SOLUTIONS

/// MHR Series Rev. 8

07/2017

Page 5