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Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, Illinois 61032
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Interactive Catalog Replaces Catalog Pages
ZS-00427-01
PRELIMINARY DATA
ONE PART RECTANGULAR PROXIMITY
SENSOR (INCORPORATING BUILT IN
TEST FUNCTION)
Description :
Environment-proof self-contained proximity sensor enclosed in a
rugged hermetically sealed ceramic/stainless steel housing, designed
to meet the requirements of aerospace applications.
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PRELIMINARY DATA
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Typical Applications :
l Aircraft landing gear uplocks and downlocks
l Aircraft weight-on-wheels
l Aircraft arrestor hook
l Flight control surfaces
Dimensions in mm (for reference only)
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Features :
l All metal sensing
l Small size rectangular housing
l Built In Test function (BITE)
l High level EMC and lightning strike performance
l High level of electronics protection
l Mean Time Between Failure >200K hours
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Operation by the Eddy Current Killed Oscillator (ECKO) principle,
which is used to detect metallic objects passing in front of the sensing
face. Once a target metal is detected, a trigger signal is produced
which is then passed through the output conditioning circuitry to give
a high or low output, depending on the sensor application.
MEASURED WITH TARGET 19 x 19 x 6.3,
300 M STEEL
Table 1
External wiring failure mode
Proximity switch (as target conditioned)
Proximity switch output status
Open input (28 Vdc)
Open input
(ground)
Open output
Actuated or deactuated
Actuated
Deactuated
Actuated
Deactuated
Actuated
Deactuated
Actuated
Deactuated
Deactuated ’0’ volts
Actuated
Deactuated
Actuated
Deactuated
Deactuated
Deactuated
Actuated
Deactuated
Shorted bit
(to 28 Vdc)
Open or grounded
(bit)
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Specifications
Sensing Characteristics :
Level
Normally open, current source
≥ 5.08 mm
≤ 9.40 mm
≤ 0.51 mm
≤ 50 ms
0 to 100 Hz
Yes
Switching function
Guaranteed actuation distance
Guaranteed deactuation distance
Differential travel
Power-on delay
Repetition rate of sensing
False pulse suppression
Specification (Note 1)
BITE Inputs :
BITE far
BITE near
+VB-3 V to + VB
-12 to -30 V
Failure Mode Detection :
According to Table 1
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External wiring
Power Supply +18 to +30 V
≤ 1 Vrms at 10 Hz-6.5 kHz
≤ 50 V in 50 ms
≤ 9 mA
≥ 500 V
≥ 10 MOhm at 500 V
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Supply voltage
Ripple voltage
Surge voltage
Current consumption w/o load
Dielectric strength
Insulation resistance
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Output -
≤ 1.0 V at 15 mA
≤ 30 mA
≤ 15 mA
≤ 23
≤ 67 µA
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On state output voltage
Maximum current consumption
Load current
Current limit
Off state leakage current
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Environmental Specifications :
Operating temperature range
Storage temperature
Temperature cycling
Altitude
Humidity
Salt mist (spray)
Immersion
Acceleration
Vibration
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Electrical Specifications :
-53° to +82° C
-53° to +82° C
500 cycles
-305 m to + 15,240 m
100% RH
≥ 0.2 gr./m3
Hermetically sealed
TBD
TBD
TBD
MIL-STD-810D, Meth. 514.3, Cat. 5, Proc. I
MIL-STD-810C, Meth. 514.2, Proc. XI
MIL-STD-810D, Meth. 516.2, Proc. IV & V
EMC Requirements :
Radiated emissions
Radiated emissions
Conducted susceptibility
Conducted susceptibility
Conducted susceptibility
Radiated susceptibility
Radiated susceptibility
Lightning induced transients, Pin test
Magnetic susceptibility
Static magnetic fields
Dynamic magnetic fields
RE101
RE102
CS101
CS101
CS102
RS101
RE103 (200 V/m, 10 kHz to 35 GHz)
Category A3XX
Section 3.4.1.2
Section 3.4.1.3
Section 3.4.1.4
Mean Time Between Failure prediction
> 200000 hrs
MIL-STD-461D
MIL-STD-461D
MIL-STD-461D
MIL-STD-461D
MIL-STD-461D
MIL-STD-461D
MIL-STD-461D
DO-160C, Section 22, June 19, 1992
LOCKHEED 423062
LOCKHEED 423062
LOCKHEED 423062
MIL-HDBK-217 F
Notes :
1. Unless otherwise stated, tested to or by similarity to Honeywell internal specifications
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