Honeywell | 32327730Aerospace Linear Variable Differential Transformers | Installation Instruction | Honeywell 32327730Aerospace Linear Variable Differential Transformers Installation Instruction

Honeywell 32327730Aerospace Linear Variable Differential Transformers Installation Instruction
Installation Instructions for the
Aerospace Linear Variable Differential Transducers,
1LVT Series
Issue 1
32327730
m WARNING
m WARNING
Consult with safety agencies and their requirements when
designing a machine control, interface, and all elements that
affect safety. Strictly adhere to all installation instructions.
Incorrect wiring will damage units. Strictly adhere to all
installation instructions.
IMPROPER INSTALLATION
Failure to comply with these instructions could result in
death or serious injury.
INCORRECT WIRING
Failure to comply with these instructions could result in
death or serious injury.
PRODUCT NOMENCLATURE
m WARNING
The product nomenclature system is based on these key
parameters
Use the correct personal protection. The chemical
solution can cause skin, eye, and lung damage. Follow the
manufacturer’s instructions.
•
•
•
•
PERSONAL INJURY
Failure to comply with these instructions could result in
death or serious injury.
INTRODUCTION
Honeywell 1LVT Series LVDTs (Linear Variable Differential
Transformers) are high resolution, robust, ac-operated, and
designed to operate under extreme environments. Qualified
as per DO-160 procedures for aerospace applications, 1LVT
Series products are intended to be used in various aerospace
applications for position control and feedback.
Total electrical stroke
Mounting type
Termination (electrical interface)
LVDT probe mounting
The “reserved” column is for the custom LVDT designs.
Figure 1. Single-Channel Product Nomenclature
1LVT
S
035
A
A
A
Series
Channels
Stroke
Mounting
Termination
Probe
Fitting
1LVT
S
Aerospace
LVDT
Single
channel
Dual-channel LVDTs have two separate sensors in parallel or
tandem that provide two independent outputs (channels A & B)
for redundancy.
ELECTRICAL CHARACTERISTICS
Characteristic
8,89 mm
[0.35 in]
A
Threaded
A
EN2997YE01005MN
A
0.138-32
threaded
050
12,7 mm
[0.50 in]
B
Flanged
B
M83723/88P1005N
B
0.164-32
threaded
070
17,78 mm
[0.70 in]
C
D38999/27YB5XN
100
25,4 mm
[1.0 in]
D
Pigtail
(flying leads)
140
35,56 mm
[1.40 in]
035
Figure 2. Dual-Tandem Product Nomenclature
1LVT
T
035
A
D
B
Series
Channels
Stroke
Mounting
Termination
Probe
Fitting
Parameter
Electrical stroke
range
8,89 mm to 35,56 mm [0.35 in to 1.4 in]
Excitation
voltage
7.07 V ±0.14 V RMS sinusoidal wave at
3000 Hz ±50 Hz
Reserved
1LVT
T
Aerospace
LVDT
Dual
tandem
035
8,89 mm
[0.35 in]
A
Threaded
050
12,7 mm
[0.50 in]
B
Flanged
070
17,78 mm
[0.70 in]
100
25,4 mm
[1.0 in]
140
35,56 mm
[1.40 in]
D
Flying
leads
B
Reserved
0.164-32
threaded
Figure 3. Dual-Parallel Product Nomenclature
1LVT
P
070
A
D
A
Series
Channels
Stroke
Mounting
Termination
Probe
Fitting
1LVT
Aerospace
LVDT
P
Dual
parallel
070
17,78 mm
[0.70 in]
A
Threaded
A
EN2997YE01005MN*
A
0.138-32
threaded
100
25,4 mm
[1.0 in]
B
Flanged
B
M83723/88P1005N*
B
0.164-32
threaded
140
35,56 mm
[1.40 in]
C
D38999/27YB5XN*
D
Pigtail
(flying leads)
*only available with
flanged mounting type
Sensing and Internet of Things
Reserved
Aerospace LVDT, 1LVT Series
LVDT HANDLING AND INSTALLATION GUIDELINES
ISSUE 1
32327730
Figure 4. LVDT, Dual Parallel, Thread Mount
The LVDT body and magnetic probe rods are matched sets
with identification by unique serial number engraved on
the LVDT body (not shown in Figures). The magnetic core is
manufactured to have homogeneity and high permeability to
achieve greater performance requirements. The magnetic core
is sensitive to mechanical stresses and should be handled
carefully.
m WARNING
Figure 5. LVDT, Dual Parallel, Flange Mount with Connector
PRODUCT DAMAGE
Do not operate the LVDT without the magnetic probe rod or
core inside the LVDT bore (hole where the magnetic probe
rod slides). Energizing the LVDT body alone may lead to
damage of coils due to overheating.
1/4-20 (5X)
screws
1LVT (DUAL PARALLEL) SERIES
Installation of LVDT Body: 1LVT Series
Note: It is important to keep the LDVT sensor free of foreign
material such as oil, grease, dust, etc. If cleaning is necessary
due to handling or re-installation, care must be taken to avoid
causing scratches or damage to the seal grooves and mounting
surface.
The LVDT has two O-ring grooves: AS568-119 size. In the wider
groove, the O-ring is supported by two backup rings to avoid
any O-ring extrusion due to fluid pressure. A typical thread
mount LVDT with flying leads is shown in Figures 3 and 4.
The 24AWG (MIL-W-22759/33-24) lead wires should be
routed. The LVDT thread #10-32 should be torqued to 18 in-lb
to 20 in-lb max. with a nut and spring washer.
For the flanged version, the socket head screws should be
torqued to 7 ft-lb to 9 ft-lb max. using high strength stainless
steel screws. Honeywell recommends using NAS 1351/NAS
1352-compliant steel screws. A typical thread mount LVDT with
connector orientation is shown in Figures 5 and 6.
Figure 3. LVDT, Dual Parallel, Thread Mount
Backup
Rings (2x)
2 sensing.honeywell.com
O-ring,
AS568-119
size
Figure 6. LVDT, Dual Parallel, Flange Mount with Connector
Aerospace LVDT, 1LVT Series
ISSUE 1
32327730
Installation of Probe Fitting: 1LVT Series
Electrical connections: 1LVT Series
The dual parallel threaded probe fitting is bearing mounted,
so the position of the two parallel channels is not affected
during assembly. Assembly the fitting with #6-32 thread to the
interface using a #6 (0.110 in) Allen key and torque to 6 in-lb
to 8 in-lb max. 17-4PH stainless steel or equivalent material
is recommended for the interface. Materials with a greater
thermal expansion than 17-4PH stainless steel should be
avoided to eliminate or to reduce the electrical null offset at
extreme operating temperatures. The channels are identified
with A & B, and should slip in to the respective LVDT channels
for the desired performance.
The typical electrical schematic is shown in Figure 10. These
LVDTs use 7.07 V RMS with 3000 Hz excitation frequency. The
recommended electrical loads (resistance and capacitance)
should be used.
During the installation, ensure the defined rig position or
electrical null is achieved.
Figure 7. LVDT, Dual Parallel, Probe
The flying lead variants will come with approximately 10-inch
lead wires for easy installation.
Three types of hermetically sealed connectors are offered
in flanged variant LVDTs. Connectors offered by Honeywell,
include:
EN2997YE01005MN
M83723/88P1005N
D38999/27YB5XN
The detailed mounting dimensions, electrical schematic, and
stroke information is provided in Figures 8 to 12.
B
A
Probe fitting
#6-32
Guide
#6 socket
head screw
Table 1. Hardware Requirements Per LVDT
SI
Description
No.
Quantity Applicable
1
O-ring per AS568-119
2
All configurations
2
Backup ring
(Size -119)
2
All configurations
3
Spring washer
(10-32 Thread)
1
Threaded
configurations
4
Lock nut
#10-32 UNF-2B
1
Threaded
configurations
5
0.250 in socket head
screw (Screw pitch per
mating part)
5
Flanged
configurations
Sensing and Internet of Things
3
Aerospace LVDT, 1LVT Series
32327730
ISSUE 1
Figure 8. Dual-Parallel (Wired) Dimensions
Channel
identification
10 x 123
[5]
O-ring glad designed
to AS568-119
2,794 [0.110]
A/F socket hex
Probe fitting
0.138 or 0.164 UNC thread
10 x 76,2
[3.00] min.
0.190-32 UNF-3A THD
Ø 15,21
[0.599]
Channel A
7,6
[0.30]
Ø 23,1
[0.91]
max.
16,4
[0.65]
2 X 4,06
[0.16]
Ø 28,3
[1.114]
max.
11,68
[0.46]
D
C
Null Position
2 x 5 lead wires
24 AWG 19 strands IAW
MIL-W-22759/33-24
twisted 1 to
2 turns/inch typ.
inside sleeving
Channel B
Connector:
EN2997YE01005MN or
D38999/27YB5XN or
M83723/88P1005N
Figure 9. Dual-Parallel (Flanged) Dimensions
Channel
identification
49,1
[1.933]
Master keyway to align with
axis of connector
within 10°
Ø 53,34
[2.10]
See Detail C.
Ø 6,6 [0.26]
thru, equally spaced
D
C
Null Position
55,9 [2.2]
max.
Table 2. Dual-Parallel Dimensions
Mounting
Catalog
Total Electrical
Total Mechanical
Type
Listing
Stroke “B”
Stroke “C”
Threaded 1LVTP140ADA 35,56 mm [1.40 in] 4,06 mm [0.16 in]
Flanged 1LVTP070BAA 17,78 mm [0.7 in] 18,29 mm [0.72 in]
Figure 10. Dual-Parallel Wiring
Red
Black
VE
Channel A
V2
V1
Rig Position “C”
Housing Length
Weight
135,1 mm [5.335 in]
94,16 mm [3.707 in]
100,33 mm [3.95 in]
68,58 mm [2.70 in]
0.55 lb max.
1.00 lb max.
Figure 11. Dual-Parallel Stroke Definition
Yellow
50K ±10 %
3600 pF ±10 %
50K ±10 %
3600 pF ±10 %
Orange
EXTEND
Blue
Red
Black
Channel B
V2
V1
Yellow
50K ±10 %
3600 pF ±10 %
50K ±10 %
3600 pF ±10 %
Orange
Blue
A/2 retract
electrical stroke
B/2 extend
mechanical stroke
Null
position
B/2 retract
mechanical stroke
Figure 12. Dual-Parallel Gain vs. Stroke
Indicates wind start
Extend
Indicates solder connection
Wire Color
Pin Number
Channel A
Channel B
1
Red
Red
2
Black
Black
3
Blue
Blue
4
Orange
Orange
5
Yellow
Yellow
4 sensing.honeywell.com
A/2 extend
electrical stroke
Aerospace LVDT, 1LVT Series
1LVT (SINGLE CHANNEL) SERIES
Installation of LVDT Body: 1LVT Series
Note: It is important to keep the LDVT sensor free of foreign
material such as oil, grease, dust, etc. If cleaning is necessary
due to handling or re-installation, care must be taken to avoid
causing scratches or damage to the seal grooves and mounting
surface.
The AS568-113 sized O-ring grooves provide environmental
sealing. A typical thread mount LVDT with flying leads is shown
in Figure 13.
The flange mount variant has an anti-rotation hole for locking
the LVDT’s body to the housing. The AS568-114 size O-ring
with one backup ring must be installed on the LVDT housing. A
typical flange mount LVDT with flying leads is shown in Figure
14.
ISSUE 1
32327730
Installation of Probe fitting: 1LVT Series
The threaded probe fitting should be assembled to the
interface using a 5/16 A/F spanner and torqued to 9 in-lb to
10 in-lb max. 17-4PH stainless steel or equivalent material
is recommended for the interface. Materials with a greater
thermal expansion than 17-4PH stainless steel should be
avoided to eliminate or to reduce the electrical null offset at
extreme operating temperatures.
During the installation, ensure the defined rig position or
electrical null is achieved.
Figure 15. LVDT, Single Channel, Probe Tip
Figure 13. LVDT, Single-Channel, Thread Mount
Electrical connections: 1LVT Series
The typical electrical schematic is shown in Figure 18. These
LVDTs use 7.07 V RMS with 3000 Hz excitation frequency. The
recommended electrical loads (resistance and capacitance)
should be used.
Figure 14. LVDT, Single-Channel, Flange Mount
The flying lead variants will come with approximately 10-inch
lead wires for easy installation.
Three types of hermetically sealed connectors are offered
in flanged variant LVDTs. Connectors offered by Honeywell
include:
EN2997YE01005MN
M83723/88P1005N
D38999/27YB5XN
The detailed mounting dimensions, electrical schematic, and
stroke information is provided in Figures 16 to 20.
Table 3. Hardware Requirements Per LVDT
SI
Description
No.
The 24AWG (MIL-W-22759/33-24) type lead wires should be
routed. The LVDT body with 0.625-18 thread should be torqued
to 10 ft-lb to 12 ft-lb max.
Quantity Applicable
1
O-ring per AS568-113
1
Threaded
configurations
2
O-ring per AS568-114
1
Flanged
configurations
3
Back-up ring
(Size -114)
2
Flanged
configurations
4
Dowel pin
1
Flanged
configurations
Sensing and Internet of Things
5
Aerospace LVDT, 1LVT Series
ISSUE 1
Figure 16. Single-Channel (Wired) Dimensions
32327730
3,18
[0.125]
9,5 [0.38]
max.
Ø 13,84
[0.545]
C
Null Position
O-ring gland designed
to AS568-113
7,75 to 7,95
[0.305 to 0.313]
Hex A/F
Ø 15,88 [0.625-16]
UNJF-3A THD IAW AS8879
Ø 0.164 or Ø 0.138
UNJC-3A THD
Detail A.
3 x Ø 1,19
[0.047] thru
Dual wall heat shrink sleeve PTFE
over FEP
F max.
Hex A/F
5 x 76,2
[3.0] min.
25,4
[1.00]
See Detail A.
5 lead wires
24 AWG 19 strands IAW
MIL-W-22759/33-24
twisted 1 to
2 turns/inch typ.
inside sleeving
9,53
[0.375]
D
E
5 x 177,8
[7.0] min.
Figure 17. Single-Channel (Flanged) Dimensions
C
Null Position
2,54
[0.100]
O-ring gland designed
to AS568-114
Master keyway to align with
axis of orientation hole
within ±10°
Ø 2,18
[0.086]
Ø 29,21
[1.15]
Connector:
EN2997YE01005MN or
D38999/27YB5XN or
M83723/88P1005N
D
E
Table 4. Single Channel Dimensions
Mounting
Catalog
Type
Listing
Threaded 1LVTS035ADB
Threaded 1LVTS050ADB
Flanged 1LVTS100BAB
Total Electrical Stroke
“A”
8,89 mm [0.35 in]
12,7 mm [0.50 in]
25,4 mm [1.0 in]
Figure 18. Single-Channel Wiring
Red
Total Mechanical Stroke
“B”
9,4 mm [0.37 in]
13,2 mm [0.52 in]
25,91 mm [1.02 in]
Rig Position “C”
Housing Length “D”
Housing Length “E”
Housing Length “F”
Weight
64 mm [2.52 in]
66,04 mm [2.60 in]
111,76 mm [4.40 in]
50,3 mm [1.98 in]
50,3 mm [1.98 in]
89,9 mm [3.54 in]
67,06 mm [2.64 in]
67,06 mm [2.64 in]
119,89 mm [4.72 in]
22,23 mm [0.875 in]
22,23 mm [0.875 in]
–
0.22 lb max.
0.22 lb max.
0.30 lb max.
Figure 19. Single-Channel Stroke Definition
Null
position
Black
B/2 min. extend
mechanical stroke
VE
A/2 extend
electrical stroke
B/2 min. retract
mechanical stroke
A/2 retract
electrical stroke
EXTEND
V1
V2
50K ±10 %
50K ±10 %
3600 pF ±10 %
3600 pF ±10 %
Figure 20. Single-Channel Gain vs. Stroke
Blue
Orange
Yellow
Indicates wind start
Indicates solder connection
6 sensing.honeywell.com
Aerospace LVDT, 1LVT Series
1LVT (DUAL TANDEM) SERIES
Installation of LVDT Body - 1LVT Series
ISSUE 1
32327730
Figure 23. LVDT, Dual Tandem, Front Support
Note: It is important to keep the LDVT sensor free of foreign
material such as oil, grease, dust, etc. If cleaning is necessary
due to handling or re-installation, care must be taken to avoid
causing scratches or damage to the seal grooves and mounting
surface.
The AS568-113 sized O-ring grooves provide environmental
sealing. A typical thread mount LVDT with flying leads is shown
in Figure 21.
The AS568-114 O-ring with one backup ring must be installed
on the flanged LVDT housing grooves. A typical flange mount
LVDT with flying leads is shown in Figure 22.
Figure 21. LVDT, Dual Tandem, Thread Mount
The 24AWG (MIL-W-22759/33-24) type lead wires should
be routed and the LVDT body with 0.625-18 thread should be
torqued to 10 ft-lb to 12 ft-lb max.
Installation of Probe Fitting: 1LVT Series
The threaded probe fitting should be assembled to the
interface using a 5/16 A/F spanner and torqued to 9 in-lb to
10 in-lb max. 17-4PH stainless steel or equivalent material
is recommended for the interface. Materials with a greater
thermal expansion than 17-4PH stainless steel should be
avoided to eliminate or to reduce the electrical null offset at
extreme operating temperatures.
Figure 22. LVDT, Dual Tandem, Flange Mount
During installation, ensure the defined rig position or electrical
null is achieved.
Figure 24. LVDT, Single Channel, Probe Tip
Electrical connections: 1LVT Series
Since the tandem LVDT is long, it’s recommended to have a
front support made with PEEK (Polyetheretherketone) for better
vibration withstanding capacity, as shown in Figure 23.
The typical electrical schematic is shown in Figure 26. These
LVDTs use 7.07 V RMS with 3000 Hz excitation frequency. The
recommended electrical loads (resistance and capacitance)
should be used.
The flying lead variants will come with approximately 10inch lead wires for easy installation. The detailed mounting
dimensions, electrical schematic and stroke information is
provided in Figures 25 to 28.
Sensing and Internet of Things
7
Aerospace LVDT, 1LVT Series
Table 5. Hardware Requirements Per LVDT
SI
Description
No.
Quantity Applicable
1
O-ring per AS568-113
1
Threaded
configurations
2
O-ring per AS568-114
1
Flanged
configurations
3
Back-up ring
(Size -114)
2
Flanged
configurations
4
Dowel pin
1
Flanged
configurations
5
Front support.
Recommended
material: PEEK
1
All configurations
8 sensing.honeywell.com
ISSUE 1
32327730
Aerospace LVDT, 1LVT Series
ISSUE 1
32327730
Figure 25. Dual-Tandem Dimensions mm [in]
Ø 3,43
[0.135]
45° x 0,762 [0.03]
1,52 ±0,05
[0.060 ±0.002]
Rod
Ø 2,03
[0.080]
max.
Ø 3,66
[0.144]
Ø 7,95
[0.313]
Ø 11,05
[0.435]
Ø 13,84
[0.545]
2 x R 0,51 [0.02]
Ø 4,17 [0.164] UNJC-3A THD
rolled thread IAW AS8879
3,18
[0.125]
2,23
[0.088]
Detail A.
See Detail A.
9,17
[0.361]
Ø 15,88 [0.625-16]
UNJF-3A THD IAW AS8879
25,65
[1.01] max.
9,53
[0.375]
O-ring gland
designed to
AS568-113
10 x 177,8
[7.00] min.
45° ±5°
10 x 76,2
[3.00] min.
Ø 13,84
[0.545] max.
21,78
[0.875] hex
across flats
7,95
[0.313]
hex
2 x Ø 21,34
[0.84]
46,22
[1.82]
max.
32,39
[1.275]
D
Channel B
C
Null Position
9,53
[0.375]
Channel A
2 x dual wall heat shrink sleeve
PTFE over FEP
2 x 5 lead wires
24 AWG 19 strands IAW
MIL-W-22759/33-24
twisted 1 to
2 turns/inch typ.
inside sleeving
10 x 177,8
[7.00] min.
E
F
Channel A
C
Null Position
Catalog Listing
Total Electrical Stroke “A”
1LVTT140ADB
1LVTT140BDB
1LVTT070ADB
35,56 mm [1.40 in]
35,56 mm [1.40 in]
17,78 mm [0.7 in]
Total Mechanical Stroke
“B”
36,07 mm [1.42 in]
36,07 mm [1.42 in]
18,29 mm [0.72 in]
Figure 26. Dual-Tandem Wiring
Red
Black
Channel B
2 x dual wall heat shrink sleeve
PTFE over FEP
Table 6. Dual-Tandem Dimensions
Mounting
Type
Threaded
Flanged
Threaded
10 x 76,2
[3.00] min.
Ø 13,84
[0.545] max.
O-ring gland
designed to
AS568-114
Rig Position “C”
168,96 mm [6.652 in]
121,97 mm [4.802 in]
138,73 mm [5.462 in]
Front Housing Length for Front Housing Length for
Threaded Config “D”
Flanged Config “E”
142,24 mm [5.60 in]
–
–
95,25 mm [3.75 in]
122,43 mm [4.82 in]
–
2 x 5 lead wires
24 AWG 19 strands IAW
MIL-W-22759/33-24
twisted 1 to
2 turns/inch typ.
inside sleeving
Rear Housing Length for
Flanged Config “F”
–
93,22 mm [3.67 in] max.
–
Figure 27. Dual-Tandem Stroke Definition
Red/White
Black/White
B/2 min. extend
mechanical stroke
VE
VE
A/2 extend
electrical stroke
Null
position
B/2 min. retract
mechanical stroke
A/2 retract
electrical stroke
EXTEND
V1
V2
V1
V2
50K ±10 %
50K ±10 %
50K ±10 %
50K ±10 %
3600 pF ±10 %
3600 pF ±10 %
Blue
Orange
Yellow
Channel A
3600 pF ±10 %
Blue/
White
3600 pF ±10 %
Orange/
White
Channel B
Yellow/
White
Figure 28. Dual-Tandem Gain vs. Stroke
Indicates wind start
Indicates solder connection
Sensing and Internet of Things
9
Aerospace LVDT, 1LVT Series
ISSUE 1
32327730
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship during the applicable warranty period. Honeywell’s standard product warranty
applies unless agreed to otherwise by Honeywell in writing;
please refer to your order acknowledgment or consult your
local sales office for specific warranty details. If warranted
goods are returned to Honeywell during the period of coverage,
Honeywell will repair or replace, at its option, without charge
those items that Honeywell, in its sole discretion, finds defective. The foregoing is buyer’s sole remedy and is in lieu of all
other warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While Honeywell may provide application assistance personally,
through our literature and the Honeywell web site, it is buyer’s
sole responsibility to determine the suitability of the product in
the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this writing.
However, Honeywell assumes no responsibility for its use.
Honeywell serves its customers through a worldwide network of
sales offices, representatives and distributors. For application
assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office or:
E-mail: info.sc@honeywell.com
Internet: sensing.honeywell.com
Phone and Fax:
USA/Canada
+1-800-537-6945
International
+1-815-235-6847; +1-815-235-6545 Fax
Honeywell Sensing and Internet of Things
9680 Old Bailes Road
Fort Mill, SC 29707
honeywell.com
32327730-1-EN IL50 GLO Printed in USA.
May 2017
© 2017w Honeywell International Inc. All rights reserved.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising