HCA & HCA-RA Series – Hermeti cally Sealed AC LVDT
HCA-RA-Series Rev. 8 www.meas-spec.com 2015-July
1/6
• Hermetically sealed, all welded
• Stainless steel housing
• MS type conn ector, glass sealed
• Axial or radial electrical connection
• IEC IP68 rating to 1,000 PSI [70 bars]
• Stroke ranges from ± 0.05 to ±10 inches
• AC operation from 400Hz to 10kHz
• Double ma g n etic shielding
• Through bore design (HCA-RA version)
DESCRIPTION
The HCA and HCA-RA Series hermetically sealed LVDTs provide premium performance in harsh industrial environments.
Impervious to dirt, water, steam, and corrosive liquids/vapors compatible with its materials, the HCA/HCA-RA all-welded
stainless steel construction withstands external pressures up to 1,000 PSI [70 bars]. Double magnetic shielding offers
excellent protection from external electromagnetic fields.
The HCA/HCA-RA Series can be configured with a number of standard options. A high temperature operation version
(200ºC) is also available (consult factory). The HCA/HCA-RA is compatible with the full line of Measurement Specialties
LVDT signal conditioners.
The HCA-RA version adds the convenience of a radial connector termination. This feature decreases the required
installation space, while also allowing debris to harmles sly pass through the ‘open-ended’ bor e.
Like in most of our LVDTs, the HCA/HCA-RA 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 vibration and shock.
Captive core option: The HCA/HCA-RA features an optional captive core design that greatly s implifies installation. The core
rod and bearing assembly includes a Bronze bearing on the front end for self-alignment, while a PTFE sleeve allows low-
friction travel through the stainless steel boreliner (spool tube). The core rod and the bearing assembly are both field
serviceable.
Also see our other hermetic LVDT models with built-in signal conditioning: HCD (DC voltage), HCT (4-20mA, 2-wire loop)
and HC-485 (RS-485 Digital Series), also av aila ble in the –RA versions.
Measurement Specialties, Inc. (NASDAQ MEAS) offers many other types of sensors and signal conditioners. Data sheets
can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx
Measurement Specialties a cq uired Scha ev itz Sensors and the SchaevitzTM trademark in 2000.
FEATURES APPLICATIONS
•
All-welded stainless steel construction
•
Harsh industrial environments
•
Glass sealed, MS type connector (MIL-C-5015)
•
Submersible (with appropriate connector)
•
Shock and vibration tolerant
•
Pressure vessels
•
Captive core eases installation (optional)
• Corrosive liquid and vapor areas (check
materials)
•
High temperature version available (200ºC)
•
Calibration certificate supplied with each unit
•
Mild radiation areas
•
Right angle (HCA-RA) version available
•
Turbine valve
HCA & HCA-RA Series – Hermeti cally Sealed AC LVDT
HCA-RA-Series Rev. 8 www.meas-spec.com 2015-July
2/6
PERFORMANCE SPECIFICATIONS
ELECT RI CAL SPECIF ICATIONS
Parameter HCA
HCA-RA
050
HCA
HCA-RA
125
HCA
HCA-RA
250
HCA
HCA-RA
500
HCA
HCA-RA
1000
HCA
HCA-RA
2000
HCA
HCA-RA
3000
HCA
HCA-RA
4000
HCA
HCA -RA
5000
HCA
HCA-RA
10000
Stroke range ±0.050
[±1.27]
±0.125
[±3.17]
±0.25
[±6.35]
±0.5
[±12.7]
±1
[±25.4]
±2
[±50.8]
±3
[±76.2]
±4
[±101.6]
±5
[±127]
±10
[±254]
Sensitivity V/V/inch
mV/V/mm
4.2
[165]
2.4
[94.5]
1.6
[63.0]
1.1
[43.3]
0.84
[33.1]
0.32
[12.6]
0.20
[7.9]
0.18
[4.6]
0.16
[6.3]
0.13
[5.1]
Output at stroke
ends, mV/V (*)
210 300 400 550 840 640 600 720 800 1,300
Phase shift
+6°
+5°
+5°
+2°
+1°
-1°
+1°
+3°
-5°
-6°
Input impedance
(PRIMARY)
430Ω 1710Ω 800Ω 900Ω 900Ω 525Ω 930Ω 1000Ω 1200Ω 930Ω
Output impedance
(SECONDARY)
950Ω 1820Ω 940Ω 1150Ω 2100Ω 535Ω 1040Ω 580Ω 1640Ω 3000Ω
Non-linearity
±% of FR
@100% stroke
(maximum)
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
@125% stroke 0.25 0.25 0.30 0.30 0.35 0 .40
(**)
0 .50 / 0 .80 0.90
(**)
@150% stroke 0.50 0.50 0.50 0.55
(**)
0 .55
(**)
0 .70
(**)
1.00
(**)
/ / /
Input voltage
3 VRMS sine wave
Input frequency
400Hz to 10kHz
Test frequency
2.5kHz
Null voltage
0.5% of FRO, maximum
ENVIRONMENTAL SPECIFICATIONS & MATERIALS
-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
6-pin MS type connector (MIL-C-5015)
IP68 to 1,000 PSI [70 bars] with use of proper mati ng connector plug
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 otherwis e 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
(*) Unit for output at stroke ends is millivolt per volt of excitation (input voltage)
(**) Requires specia l reduce d core leng t h
HCA & HCA-RA Series – Hermeti cally Sealed AC LVDT
HCA-RA-Series Rev. 8 www.meas-spec.com 2015-July
3/6
MECHANICAL SPECIFICATIONS – NON CAPTIVE CORE (STANDARD)
Parameter HCA
HCA-RA
050
HCA
HCA-RA
125
HCA
HCA-RA
250
HCA
HCA-RA
500
HCA
HCA-RA
1000
HCA
HCA-RA
2000
HCA
HCA-RA
3000
HCA
HCA-RA
4000
HCA
HCA-RA
5000
HCA
HCA-RA
10000
Body length “A”
1.66
[42.2]
2.50
[63.5]
3.36
[85.3]
5.05
[128.3]
7.29
[185.2]
10.68
[271.3]
15.76
[400.3]
16.17
[410.7]
19.70
[500.4]
33.82
[859.0]
Core length “B”
0.59
[15.0]
1.10
[27.9]
1.80
[45.7]
3.00
[76.2]
3.80
[96.5]
5.30
[134.6]
6.20
[157.5]
6.20
[157.5]
6.20
[157.5]
12.00
[304.8]
Bore depth “C”
HCA only
1.07
[27.2]
1.91
[48.5]
2.77
[70.4]
4.46
[113.3]
6.72
[170.7]
10.20
[259.1]
15.17
[385.3]
19.12
[485.6]
33.23
[844.0]
Core center
at null “P”
0.55
[14.0]
0.96
[24.4]
1.39
[35.3]
2.23
[56.6]
3.32
[84.3]
4.91
[124.7]
7.59
[192.8]
7.87
[199.9] 9.56
[242.8]
16.61
[421.9]
HCA body weight
oz [g]
1.20
[34]
1.73
[49]
2.22
[63]
2.93
[83]
5.22
[148]
5.65
[160]
8.33
[236]
8.50
[241] 10.31
[292]
18.57
[526]
HCA-RA body
weight, oz [g]
2.26
[64]
2.79
[79]
3.28
[93]
3.98
[113]
6.28
[178]
6.70
[190]
9.38
[266]
9.60
[272]
11.35
[322]
19.61
[556]
Core wei ght oz
[g]
0.07
[2]
0.11
[3]
0.14
[4]
0.28
[8]
0.39
[11]
0.46
[13]
0.60
[17]
0.60
[17]
0.60
[17]
0.85
[24]
Dimensions are in inch [mm]
HCA & HCA-RA Series – Hermeti cally Sealed AC LVDT
HCA-RA-Series Rev. 8 www.meas-spec.com 2015-July
4/6
MECHANICAL SPECIFICATIONS – CAPTIVE CORE OPTION
Parameter HCA/HCA-
RA 050
HCA/HCA-
RA 125
HCA/HCA-
RA 250
HCA/HCA-
RA 500
HCA/HCA-
RA
1000
HCA/HCA-
RA 2000
HCA/HCA-
RA 3000
Body length “A”
2.00
[50.8]
2.84
[72.1]
3.70
[94.0]
5.39
[136.9]
7.63
[193.8]
11.02
[279.9]
16.10
[408.9]
Core center a t null “P”
0.89
[22.6]
1.30
[33.0]
1.73
[43.9]
2.57
[65.3]
3.66
[93.0]
5.39
[136.9]
7.93
[201.4]
Core rod position at null “R”
3.70
[94.0]
4.28
[108.7]
4.75
[120.6]
6.04
[153.4]
7.90
[200.7]
10.52
[267.2]
15.27
[387.9]
Weight, oz [grams]
1.98 [56]
2.61[74]
3.14 [89]
4.06 [115]
6.63 [188]
7.37 [209]
10.62 [301]
Dimensions are in inch [mm]
WIRING INFORMATION
A through F: Connector pin assignments
Connect B to C for differential output
HCA & HCA-RA Series – Hermeti cally Sealed AC LVDT
HCA-RA-Series Rev. 8 www.meas-spec.com 2015-July
5/6
ORDERING INFORMATION
Description HCA Model Part Number Description HCA-RA Model Part Number
±0.050 inch LVDT
HCA 050
02560413-000
±0.050 inch LVDT
HCA-RA 050
02560413-500
±0.125 inch LVDT
HCA 125
02560414-000
±0.125 inch LVDT
HCA-RA 125
02560414-500
±0.25 inch LVDT
HCA 250
02560415-000
±0.25 inch LVDT
HCA-RA 250
02560415-500
±0.5 inch LVDT
HCA 500
02560416-000
±0.5 inch LVDT
HCA-RA 500
02560416-500
±1 inch LVDT
HCA 1000
02560417-000
±1 inch LVDT
HCA-RA 1000
02560417-500
±2 inch LVDT
HCA 2000
02560418-000
±2 inch LVDT
HCA-RA 2000
02560418-500
±3 inch LVDT
HCA 3000
02560419-000
±3 inch LVDT
HCA-RA 3000
02560419-500
±4 inch LVDT
HCA 4000
72560000-000
±4 inch LVDT
HCA-RA 4000
72560000-500
±5 inch LVDT
HCA 5000
02560420-000
±5 inch LVDT
HCA-RA 5000
02560420-500
±10 inch LVDT
HCA 10000
02560421-000
±10 inch LVDT
HCA-RA 10000
02560421-500
OPTIONS
Description
Comments
Part Number
5.0 kHz calibration
HCA/HCA-RA 050 through
HCA/HCA-RA 500 only
XXXXXXXX-002
10 kHz calibration
XXXXXXXX-003
Metric threaded core (Non-captive) or connecting rod (Captive core)
All
XXXXXXXX-006
Guided core
Available on
non-captive core models only
XXXXXXXX-010
Small-diameter/low-mass core (consult factory for mass and dimensions)
XXXXXXXX-020
Captive core
HCA/HCA-RA 050 through
HCA-RA 3000 only
XXXXXXXX-200
Note: Add multiple option dash numbers together to determine proper ordering suffix
Example: HCA-RA 1000, ±1 inch, right angle connector model, with captive core and 5 kHz calibration, P/N 0256417-702
ACCESSORIES FOR HCA AND HCA-RA
Description
Comments
Part Number
Core connecting rod, 6 inches long, 4-40 threads
05282946-006
Core connecting rod, 12 inches long, 4-40 threads
05282946-012
Core connecting rod, 24 inches long, 4-40 threads
05282946-024
Core connecting rod, 36 inches long, 4-40 threads
05282946-036
Core connecting rod, 6 inches long, M3x0.5 metric threads
05282977-006
Core connecting rod, 12 inches long, M3x0.5 metric threa ds
05282977-012
Mounting block
04560950-000
Mating connector kit
PT06A-10-6S(SR)
62101011-000
Interconnect cable for LVM-110 and LiM 4-20 Signal Conditioners (1)
HCA/HCA-RA to Stripped/Tinned
04290417-000
Interconn ect cab le for IEM-422 Signal Conditioner (1)
HCA/HCA-RA to PTO6A-10-6P
04290133-000
Interconnect cable for ATA-2001 Signal Conditioner (1)
HCA/HCA-RA to DB-9P
04290457-000
Interconnect cable for MP-2000 Series Set-Point Controlle r (1)
HCA/HCA-RA to 05BL5M
04290560-000
Interconnect cable for LDM/PML-1000 Signal Conditioners, 200°C (1)
HCA/HCA-RA to Stripped/Tinned
04290595-000
(1) All cables are shielded, 10 foot long, and rated 80°C [176°F] operating un le ss otherwise noted. Consult factory for other
lengths.
Refer to our “ Acces sorie s for LVD Ts” data shee t for our LV DT signal con dit ioni ng instr um ent at ion and other ac ce ssor ies.
HCA & HCA-RA Series – Hermeti cally Sealed AC LVDT
HCA-RA-Series Rev. 8 www.meas-spec.com 2015-July
6/6
TECHNICAL 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 ability of its product f or any partic ular purpose, nor d oes
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 pat ent rights nor the rights of others.
Mouser Electronics
Authorized Distributor
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