Aerospace Proximity Sensors
IHM Series
32318768
Datasheet
FEATURES
Issue 1
DESCRIPTION
Honeywell has over 30 years’ experience designing and
delivering accurate and reliable proximity sensors that are
currently used in a variety of military and commercial aircraft.
Honeywell’s patented IHM Series Aerospace Proximity Sensors
are configurable, non-contact, hermetically sealed devices
designed to sense the presence or absence of a target in
harsh-duty aircraft applications. The IHM Series provides on/
off output, and can be configured with an optional health
monitoring output to the host system. The technology
Honeywell uses in the IHM Series is considered an improvement
on traditional ECKO (Eddy Current Killed Oscillator)
topology that previously had been the standard in aerospace
applications. The IHM Series helps to reduce downtime and
maintenance costs due to a unique circuit that can detect any
internal failures and display a fault output instead of a false
positive or false negative.
•
Industry-leading indirect lightning and dielectric ruggedness:
Meets the increased requirements of today’s composite
aircraft and most challenging applications including landing
gear, thrust reversers, and flight controls
• Superior vibration ruggedness: Capable of withstanding
extremely high vibration applications
• Environmentally rugged: Fully hermetic packages provide
long-term reliability in very harsh environments by
eliminating the potential for contamination of the sensor
from the application environment. In addition, Honeywell has
developed an innovative method to hermetically seal wire-
lead (pigtail) configurations
• Integral Health Monitoring Capability: Optional third output
state to indicate the health of the sensor (whether it is healthy
or failed). Reduces maintenance time, reduces delayed flights,
and lowers overall maintenance cost across the life of the
aircraft
• Non-contact design: Utilizes non-contact technology to
sense the presence or absence of a target regardless of the
dirty, harsh environment in which it is placed, eliminating
mechanical failure mechanisms, reducing wear, minimizing
downtime, increasing durability, and increasing reliability
POTENTIAL APPLICATIONS
• Thrust reverser actuation system (TRAS) (stowed or deployed
status)
• Doors (open/closed position, locked status)
• Cargo loading latch detection (palet locked)
• Evacuation slide door-lock mechanism
• Flight controls (flap/slat, spoilers)
• Landing gear (uplock, downlock, & Weight On Wheels (WOW))
VALUE TO CUSTOMERS
• Enhanced vibration and EMI specifications help to increase
revenue (flight hours) and reduce cost to serve (system
maintenance)
• Hermetic sealing helps increase revenue (flight hours), reduce
cost to serve (maintenance), & reduce cost of goods (spares)
• Platform approach helps to increase revenue (speed
to market) and reduce cost to serve (lower engineering
investment)
• Health monitoring helps to increase revenue (flight hours),
reduce cost to serve (maintenance), and reduce cost of goods
(spares)
• Supplier stability helps to reduce cost to serve (troubleshoot
with original supplier)
• Current install base helps to reduce cost to serve (proven
performance and MTBF)
DIFFERENTIATION
• Diagnostic capability: Integral Health Monitoring:
sinks 9 mA ±1 mA or <1 mA on fault detection
• Honeywell has developed an innovative method to
hermetically seal wire-lead (pigtail) configurations
• Fire detection/integrity: Explosion proof RTCA/DO-160G
Section 9, Cat E&H
• Operational shock: RTCA/DO-160G Section 7, Cat B
• Crash safety: RTCA/DO-160G Section 7, Cat B
• Radio frequency emission: RTCA/DO-160G Section 21, Cat M
• Lightning induced transient susceptibility: RTCA/DO-160G
Section 22, Cat B3K3L3
PORTFOLIO
Honeywell’s IHM Series is part of a comprehensive line of
aerospace sensors, switches, and value-added solutions. To
view Honeywell’s complete product offering, click
here.
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Aerospace Proximity Sensors, IHM Series
Table 1. Performance Specifications
Characteristic
Mechanical Characteristics
Weight
Sealing
60 g to 150 g
Hermetically sealed
• D38999/25YA98PN
• D38999/25YA98PA
• EN2997Y10803MN
• M83723/90Y1005N
• M83723/90Y10056
• M83723/90Y10057
• M83723/90Y10058
• Pigtail
• Inline, cylindrical, threaded
• Right angle, cylindrical, threaded
• Inline, cylindrical, flanged
• Right angle, cylindrical, flanged
5 mm max.
Inconel
®
Stainless steel
13,5 mm [0.53 in]
various; 60 mm [2.36 in] max.
>1,000,000 flight hours
12 Vdc to 28 Vdc
<10 mA
-55 °C to 115 °C [-67 °F to 239 °F]
-65 °C to 115 °C [-85 °F to 239 °F]
Current sinking output
Open collector output,
Normally Closed
Switch closed
Max. load current: 250 mA res.
Output voltage drop: less than 2 V
at 250 mA resisitve load current
Switch open
Max. leakage current:
50
mA
@ 28 Vdc
n/a
Open collector output,
Normally Open
Switch open
Max. leakage current:
50
mA
@ 28 Vdc
Switch closed
Max. load current: 250 mA res.
Output voltage drop: less than 2 V
at 250 mA resisitve load current
n/a
Parameter
Connector/leads
Form factor
Sensing distance
Sensing face
Outer body material
Sensor head diameter
Sensor length
MTBF
Electrical Characteristics
Supply voltage
Supply current
Operating temperature range
Storage temperature range
Output type
Target far
Output current: 12 mA to 16 mA
Target near
Output current: 4 mA to 6 mA
Output current:
<1 mA or 9 mA to 11 mA
5 ms
<1 second
<2.5 mW
1500 Vdc and 1500 Vac
200 mW min. at 50 Vdc
Internal failure
Target response time
Power on delay time
Bonding resistance
Dielectric strength
Insulation resistance
Sensing Characteristics
Ga/Gd
Target material
Target dimension
see Figure 2
17-4 PH stainless steel heat treated to condition H1025
Rectangular target of 25 mm x 18 mm x 3 mm
2
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Aerospace Proximity Sensors, IHM Series
Characteristic
Environmental Characteristics
Temperature and altitude
Temperature variation
Humidity
Operational shock and crash
safety
Vibration
Explosion safety
Water proofness
Fluid susceptibility
Sand and dust
Fungus resistance
Salt spray
Magnetic effects
Power input
Voltage spike
Audio frequency conducted
susceptibility
Induced signal susceptibility
Radio frequency radiated
susceptibility
Radio frequency conducted
susceptibility
Radio frequency emission
Lightning induced transient
susceptibility
Icing
Electrostatic discharge
Parameter
RTCA/DO-160G – Section 4, Category D3
RTCA/DO-160G – Section 5, Category S2
RTCA/DO-160G – Section 6, Category C
RTCA/DO-160G – Section 7, Category B
RTCA/DO-160G – Section 8, Category R (Curve E & E1)
RTCA/DO-160G – Section 9, Category E&H ENV III
RTCA/DO-160G – Section 10, Category R
RTCA/DO-160G – Section 11, Category F
RTCA/DO-160G – Section 12, Category D
RTCA/DO-160G – Section 13, Category F
RTCA/DO-160G – Section 14, Category T
RTCA/DO-160G – Section 15, Category A
RTCA/DO-160G – Section 16, Category A
RTCA/DO-160G – Section 17, Category A
RTCA/DO-160G – Section 18, Category Z
RTCA/DO-160G – Section 19, Category CWE
RTCA/DO-160G – Section 20, Category G
RTCA/DO-160G – Section 20, Category Y
RTCA/DO-160G – Section 21, Category M
RTCA/DO-160G – Section 22, Category B3K3L3
RTCA/DO-160G – Section 24, Category A
RTCA/DO-160G – Section 25, Category A
Figure 1. Product Nomenclature
1P
CT
Form
Factor
A
Range Ga/Gd
mm [in]
3A
Electrical
Output Type
A
N
Pigtail
Length
N
-000
Series
IHM
Series
One-Piece
(Active)
Proximity
Sensor
Termination
Hardware
Reserved
CT
RT
CF
RF
Inline, cylindrical
threaded
Right angle
cylindrical
threaded
Inline, cylindrical
flanged
Right angle
cylindrical
flanged
A
B
C
D
E
F
1,75/2,75
[0.069/0.108]
2,00/3,00
[0.078/0.118]
2,25/3,25
[0.088/0.128]
2,50/3,50
[0.098/0.138]
2,75/3,75
[0.108/0.147]
3,00/4,00
[0.118/0.157]
3A
3B
3C
3-wire,
current sink output
Near/Fault/Far
3-wire,
open collector output
normally closed
3-wire,
open collector output
normally open
A
B
C
D
E
F
G
H
D38999/25YA98PN
D38999/25YA98PA
EN2997Y10803MN
M83723/90Y1005N
M83723/90Y10056
M83723/90Y10057
N
A
B
C
D
E
F
G
Not
applicable
30,84 cm
[12.0 in]
60,96 cm
[24.0 in]
91,44 cm
[36.0 in]
121,92 cm
[48.0 in]
152,40 cm
[60.0 in]
182,88 cm
[72.0 in]
213,36 cm
[84.0 in]
N
1
No
hardware
Washer MS25081C6 (1 nos.)
Hex nut MS21340-05 (2 nos.)
M83723/90Y10058
Pigtail (flying lead)
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Aerospace Proximity Sensors, IHM Series
Figure 2. Slide-by Curves
Proximity Sensor Actuation and De-Actuation Curves
4
3.5
3
Z-Head on distance (mm)
2.5
2
Guaranteed De-Actuation Curve
1.5
1
0.5
0
Typical De-Actuation Curve
Typical Actuation Curve
Guaranteed Actuation Curve
-5
-4
-3
-2
-1
0
1
2
3
4
X-Slide by distance (mm)
Figure 3. Keep Out Zone Map
20,32 mm [0.8 in]
40,64 mm
[1.6 in]
7,62 mm
[0.3 in]
4
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Aerospace Proximity Sensors, IHM Series
PRODUCT DIMENSIONS
Figure 4. IHM Series: Cylindrical, Flanged Housing with EN2997Y10803MN Connector mm [in]
Connector: EN2997Y10803MN
(mates with EN2997SEC0803FN
or equivalent)
15,5
[0.61]
60,5 [2.36] max.
3 [0.012]
17
[0.67]
42,5 [1.67]
3,89
[0.15]
Ø 18 [Ø 0.70]
21,25
[0.84]
2X R13
[0.51]
30° typ.
Master keyway
15,8
[0.62]
55°
R 2 [0.08]
R 0,75
[0.03]
max. 27,9
[1.10]
2X Ø 19,0
[Ø 0.748]
13
[0.51]
16,5
[0.65]
Ø 13,5 [Ø 0.53]
26
[1.02]
2X Ø 5
[Ø 0.20]
Connector shell
EEC
Electrical Schematic
Supply/Excitation
1
Load
1
Output
Proximity
Sensor
End cap
Lower housing
Upper housing
To measuring
unit
2
2
3
3
Supply Return
L
o
g
i
c
Figure 5. IHM Series: Cylindrical, Flanged Housing with M83723/90Y1005N Connector mm [in]
60,5 [2.36] max.
15,5
[0.61]
3 [0.012]
17
[0.67]
42,5 [1.67]
3,89
[0.15]
Ø 18 [Ø 0.70]
21,25
[0.84]
2X R13
[0.51]
13
[0.51]
30° typ.
Master keyway
2X Ø 19,0
[Ø 0.748]
16,5
[0.65]
2X Ø 5
[Ø 0.20]
55°
Connector:
M83723/90Y1005N
(mates with
M83723/97S1005N R 2 [0.08]
or equivalent)
R 0,75
[0.03]
max. 27,9
[1.10]
Ø 15,8
[Ø 0.62]
Ø 13,5 [Ø 0.53]
EEC
4
26
[1.02]
4
5
Supply/Excitation
1
Load
1
Output
Proximity
Sensor
No Connection
No Connection
Connector
5
To measuring
unit
2
2
End cap
Lower housing
Upper housing
3
3
Supply Return
L
o
g
i
c
Electrical Schematic
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